GREATER BAY BANCORP
8-K, 1997-06-05
NATIONAL COMMERCIAL BANKS
Previous: INTERNATIONAL DESIGN GROUP INC /DE/, PRES14C, 1997-06-05
Next: BEAR STEARNS COMPANIES INC, 424B3, 1997-06-05



<PAGE>
 
================================================================================

                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549



                                    FORM 8-K

                                 CURRENT REPORT
   Pursuant to Section 13 or 15(d) of the Securities and Exchange Act of 1934

        Date of Report (date of Earliest Event Reported):  May 12, 1997


                              GREATER BAY BANCORP
             (Exact name of registrant as specified in its charter)
 

        CALIFORNIA                       0-25034               77-0387041
(State or other jurisdiction    (Commission File Number)  (I.R.S. Employer
 of incorporation or                                      Identification Number)
 organization)                                        
           

                            2860 WEST BAYSHORE ROAD
                          PALO ALTO, CALIFORNIA 94303
             (Address of principal executive offices and ZIP Code)


      REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:   (415) 813-8200

================================================================================
<PAGE>
 
ITEM 1.   CHANGES IN CONTROL OF REGISTRANT.

          Not applicable.

ITEM 2.   ACQUISITION OR DISPOSITION OF ASSETS.

          Not applicable.

ITEM 3.   BANKRUPTCY OR RECEIVERSHIP.

          Not applicable.

ITEM 4.   CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT.

          Not applicable.

ITEM 5.   OTHER EVENTS.

          A.   Amendments of Articles of Incorporation and Bylaws.

          Effective May 12, 1997, a majority of the outstanding shares of common
stock, no par value ("Common Stock"), of Greater Bay Bancorp (the "Company")
approved by written consent proposals (the "Proposals") to (i) amend the
Company's Articles of Incorporation to eliminate cumulative voting in the
election of directors, and (ii) amend the Company's Bylaws to provide for the
classification of the Company's Board of Directors for purposes of the election
of directors.

          B.   Consummation of Trust Preferred Securities Offering.

          On March 31, 1997, the Company, through its wholly-owned subsidiary,
GBB Capital I, a Delaware statutory business trust, consummated a $20 million
offering (the "Offering") of GBB Capital I's 9.75% cumulative trust preferred
securities.  GBB Capital I invested the proceeds of the Offering in 9.75% Junior
Subordinated Deferrable Interest Debentures (the "Debentures") issued by the
Company.

ITEM 6.   RESIGNATIONS OF REGISTRANT'S DIRECTORS.

          Not applicable.

ITEM 7.   FINANCIAL STATEMENTS AND EXHIBITS.

     (a)  Financial Statements.

          Not applicable.

     (b) Pro Forma Financial Statements.

          Not applicable.

                                       2
<PAGE>
 
     (c)  Exhibits.

          3.1  Articles of Incorporation of Greater Bay Bancorp, as amended.

          3.2  Bylaws of Greater Bay Bancorp, as amended.

          4.1  Junior Subordinated Indenture between Greater Bay Bancorp and
Wilmington Trust Company, as Trustee, dated as of March 31, 1997.

          4.2  Officer's Certificate and Company Order, dated March 31, 1997.

          4.3  Reserved.

          4.4  Reserved.

          4.5  Reserved.

          4.6  Amended and Restated Trust Agreement of GBB Capital I among
Greater Bay Bancorp, as Depositor, Wilmington Trust Company, as Property Trustee
and Delaware Trustee, and the Administrative Trustees named therein, dated as of
March 31, 1997.
 
          4.7  Trust Preferred Certificate of GBB Capital I.

          4.8  Common Securities Certificate of GBB Capital I.

          4.9  Guarantee Agreement between Greater Bay Bancorp, as Guarantor,
and Wilmington Trust Company, as Trustee, dated as of March 31, 1997.

          4.10 Agreement as to Expenses and Liabilities, dated as of March 31,
1997.

          4.11 Reserved.

          4.12 Reserved.

          4.13 Reserved.

          4.14 Supplemental Debenture Agreement, dated as of March 27, 1997.

ITEM 8.   CHANGE IN FISCAL YEAR.

          Not applicable.

ITEM 9.   SALES OF EQUITY SECURITIES PURSUANT TO REGULATION S.

          Not applicable.

                                       3
<PAGE>
 
SIGNATURES

          Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                         GREATER BAY BANCORP



Dated:  June 2, 1997                     /s/ Steven C. Smith
                                         -------------------------------
                                         Steven C. Smith
                                         Executive Vice President,
                                         Chief Operating Officer and
                                         Chief Financial Officer

                                       4

<PAGE>
 
                                                                     Exhibit 3.1
 
                           ARTICLES OF INCORPORATION
                                      OF
                           SAN MATEO COUNTY BANCORP


ONE:      NAME.
- ---       

               The name of the corporation is San Mateo County Bancorp.

TWO:      PURPOSE.
- ---

               The purpose of the corporation is to engage in any lawful act or 
          activity for which a corporation may be organized under the General 
          Corporation Law of California other than the banking business, the 
          trust company business, or the practice of a profession permitted to 
          be incorporated by the California Corporation Code.

THREE:    AGENT FOR SERVICE OF PROCESS.
- -----

               The name and address of the corporation's initial agent for 
          service of process is:  Fred R. Brinkop, 500 Allerton Street, Redwood 
          City, CA 94063.

FOUR:     AUTHORIZED STOCK.
- ----

               (a)  The corporation is authorized to issue two classes of shares
          designated "Preferred Stock" and "Common Stock", respectively.  The 
          number of shares of Preferred Stock authorized to be issued is 
          4,000,000 and the number of shares of Common Stock authorized to be 
          issued is 6,000,000.
<PAGE>
 
               (b) The Preferred Stock may be divided into such number of series
          as the board of directors may determine. The board of directors is
          authorized to determine and alter the rights, preferences, privileges
          and restrictions granted to or imposed upon any wholly unissued series
          of Preferred Stock, and to fix the number of shares of any series of
          Preferred Stock and the designation of any such series of Preferred
          Stock. The board of directors, within the limits and restrictions
          stated in any resolution or resolutions of the board of directors
          originally fixing the number of shares constituting any series, may
          increase or decrease (but not below the number of shares of such
          series then outstanding) the number of shares of any series subsequent
          to the issue of shares of that series.

          IN WITNESS WHEREOF, for the purpose of forming this corporation under 
the laws of the State of California, the undersigned, constituting the sole 
incorporator of this corporation, has executed these Articles of Incorporation.


                                      /s/ Fred R. Brinkop
                                      --------------------------
                                      Fred R. Brinkop
                                      Sole Incorporator

          The undersigned declares under penalty or perjury that h is the person
who executed these Articles of Incorporation and that this instrument is the act
and dead of the undersigned.

          Executed this 7 day of Nov, 1984, at San Francisco, California.


                                      /s/ Fred R. Brinkop
                                      --------------------------
                                      Fred R. Brinkop
          
<PAGE>
 
                          CERTIFICATE OF AMENDMENT OF
                          ARTICLES OF INCORPORATION OF
                           SAN MATEO COUNTY BANCORP

     Leo D. Taylor and Douglas S. McGlashan hereby certify that:

     1.  They are the President and Secretary, respectively, of SAN MATEO COUNTY
BANCORP, a California corporation.

     2.  The Articles of Incorporation of this corporation are amended to add 
the following Article Five:

"FIVE:  INDEMNIFICATION OF DIRECTORS, OFFICERS, EMPLOYEES, AND OTHER AGENTS.
 ----

         (a)  Limitation of Directors' Liability. The liability of the directors
              ----------------------------------
of the corporation for monetary damages shall be eliminated to the fullest 
extent permissible under California law.

         (b)  Indemnification of Corporate Agents. The corporation is authorized
              -----------------------------------
to provide indemnification of its agents (as defined in Section 317 of the 
California General Corporation Law) for breach of their duty to the corporation 
and its shareholders through bylaw provisions or through agreements with the 
agents, or both, in excess of the indemnification otherwise permitted by such 
Section 317, subject to the limits on such excess indemnification set forth in 
Section 204 of the California General Corporation Law.

         (c)  Repeal or Modification. Any repeal or modification of the 
              ----------------------
foregoing provisions of this Article V shall not adversely affect any right of 
indemnification or limitation of liability of an agent of the corporation 
relating to acts or omissions occurring prior to such repeal or modification."

                                      1.

<PAGE>
 
     3.   The foregoing Certificate of Amendment of Articles of Incorporation 
has been duly approved by the Board of Directors.

     4.   The foregoing Certificate of Amendment of Articles of Incorporation 
has been duly approved by the required vote of shareholders in accordance with 
Section 902 of the California General Corporation Law. The total number of 
outstanding shares of capital stock of the corporation is 347,675 shares of 
Common Stock.  The number of shares voting in favor of the Certificate of 
Amendment of Articles of Incorporation equaled or exceeded the vote required.  
The percentage vote required was more than 50% of the outstanding Common Stock.

     We further declare under penalty of perjury under the laws of the State of 
California that the matters set forth in this Certificate of Amendment of 
Articles of Incorporation are true of our own knowledge.

     Executed at San Mateo, California this 21st day of June, 1988.
                                            ----        ----


                                                 /s/ Leo D. Taylor
                                                 -------------------------------
                                                 Leo D. Taylor, President



                                                 /s/ Douglas S. McGlashan
                                                 -------------------------------
                                                 Douglas S. McGlashan, Secretary



                                       2.
<PAGE>
 
                           CERTIFICATE OF AMENDMENT
                                      OF
                           ARTICLES OF INCORPORATION

Owen D. Conley and Robert M. Lubin certify that:

1.  They are the Chairman of the Board and Secretary, respectively, of San Mateo
    County Bancorp, a California corporation.


2.  Article One of the articles of incorporation of this corporation is amended 
    to read as follows:

    "The name of this corporation shall be Mid-Peninsula Bancorp."

3.  The foregoing amendment of articles of incorporation has been duly approved 
    by the board of directors.


4.  The foregoing amendment of articles of incorporation has been duly approved
    by the required vote of shareholders in accordance with Section 902 of the
    Corporations Code. The total number of outstanding shares of common stock of
    the corporation is 465,369. The number of shares voting in favor of the
    amendment equaled or exceeded the vote required. The percentage vote
    required was more than 50%. There are no shares of preferred stock
    outstanding.

We further declare under penalty of perjury under the laws of the State of 
California that the matters set forth in this certificate are true and correct 
of our own knowledge.

DATE:  October 3, 1994
                                          /s/ OWEN D. CONLEY
                                              ---------------------------
                                              Owen D. Conley
                                              Chairman of the Board

                                          /s/ ROBERT M. LUBIN
                                              ---------------------------
                                              Robert M. Lubin
                                              Secretary 
<PAGE>
 
                               MERGER AGREEMENT

     THIS MERGER AGREEMENT (the "Merger Agreement") is made and entered into as 
of November 15, 1996, by and between MID-PENINSULA BANCORP, a California 
corporation ("Mid-Peninsula"), and CUPERTINO NATIONAL BANCORP, a California 
corporation ("Cupertino").

                                   RECITALS

      A.  Mid-Peninsula is a corporation duly organized, validly existing and
doing business in good standing under the laws of the State of California with
authorized capital stock of six million (6,000,000) shares of no par value
common stock of which, on the date hereof, there are One Million, Six Hundred
Thirty-Seven Thousand, Five Hundred Ninety-Three (1,637,593) shares issued and
outstanding (individually, a "Mid-Peninsula Share" and together the "Mid-
Peninsula Shares") and four million (4,000,000) shares of preferred stock of
which, on the date hereof, there are no shares issued and outstanding.

     B.   Cupertino is a corporation duly organized, validly existing and doing
business in good standing under the laws of the State of California with
authorized capital stock of six million (6,000,000) shares of no par value
common stock of which, on the date hereof, there are One Million Nine Hundred
Five Thousand, Nine Hundred Fifty-Eight (1,905,958) shares issued and
outstanding (individually a "Cupertino Share" and together the "Cupertino
Shares") and 4,000,000 shares of preferred stock of which, on the date hereof,
there are no shares issued and outstanding.

     C.   Mid-Peninsula and Cupertino have entered into a Second Amended
Agreement and Plan of Reorganization and Merger, dated August 20, 1996 (the
"Agreement"), which contemplates the merger of Cupertino with and into Mid-
Peninsula (the "Merger") upon and in accordance with the terms and conditions
set forth in the Agreement and this Merger Agreement.

     D.   The respective Boards of Directors of Mid-Peninsula and Cupertino deem
it desirable and in the best interests of Mid-Peninsula and Cupertino and their
respective shareholders that Cupertino be merged with and into Mid-Peninsula as
provided in the Agreement and this Merger Agreement pursuant to the laws of the
State of California and that Mid-Peninsula change its name to Greater Bay
Bancorp ("Bancorp") which shall be the surviving corporation ("Surviving
Corporation").

     E.   The respective Boards of Directors of Mid-Peninsula and Cupertino have
adopted resolutions approving this Merger Agreement and the Agreement and have 
recommended that the Merger be approved by the shareholders of their respective 
corporations.

     F.   The respective shareholders of each of Mid-Peninsula and Cupertino, at
meetings duly held, have duly approved and adopted this Merger Agreement, the
Agreement and approved the Merger.

<PAGE>
 
                                   AGREEMENT

      NOW, THEREFORE, in consideration of the premises and of the mutual 
covenants and agreements herein set forth and for the purpose of prescribing 
the terms and conditions of the Merger, the parties hereto agree as follows:

                                   ARTICLE I
                                  THE MERGER
                                  ----------

     1.1  Effect of Merger.  At the Effective Time of the Merger (as defined in
          ----------------
Article VII hereof), Cupertino shall be merged with and into Mid-Peninsula, 
Mid-Peninsula shall change its name to Greater Bay Bancorp, which shall 
thereupon be the Surviving Corporation, and the separate corporate existence of 
Cupertino shall cease.

     1.2 Rights and Duties of Surviving Corporation. At and after the Effective
         ------------------------------------------
Time of the Merger, all rights, privileges, powers and franchises and all
property and assets of every kind and description of Cupertino shall be vested
in and be held and enjoyed by Bancorp as the Surviving Corporation, without
further act or deed; all the estates and interests of every kind of Cupertino,
including all debts due to it, shall be as effectively the property of Bancorp
as the Surviving Corporation as they were of Cupertino; the title to any real
estate vested by deed or otherwise in Cupertino shall not revert or be in any
way impaired by reason of the Merger; and Bancorp shall be deemed to be the same
entity as each of Cupertino and Mid-Peninsula and shall be subject to all of
their duties and liabilities of every kind and description. All rights of
creditors and liens upon any property of Mid-Peninsula or Cupertino shall be
preserved unimpaired and all debts, liabilities and duties of Mid-Peninsula or
Cupertino shall be the debts, liabilities and duties of Bancorp as the Surviving
Corporation and may be enforced against it to the same extent as if such debts,
liabilities and duties had been incurred or contracted by it.

                                  ARTICLE II
                             CONVERSION OF SHARES
                             --------------------

     2.1  Conversion of Shares.  In and by virtue of the Merger and at the 
          --------------------
Effective Time of the Merger, pursuant to this Merger Agreement, each 
Mid-Peninsula Share and each Cupertino Share issued and outstanding immediately 
prior to the Effective time of the Merger shall, at the Effective Time of the 
Merger, be converted.

          a. Effect on Mid-Peninsula Shares. At the Effective Time of the
             ------------------------------
Merger, each Mid-Peninsula Share issued and outstanding immediately prior to the
Effective Time of the Merger shall, on and after the Effective Time of the
Merger, remain issued and outstanding and shall automatically and for all
purposes be deemed to represent one share of the common stock, without par
value, of Bancorp as the Surviving Corporation ("Bancorp Shares").

          b.  Conversion of Cupertino Shares.  At the Effective Time of the 
              ------------------------------
Merger, each Cupertino Share outstanding immediately prior to the Effective Time
of the Merger shall, by virtue of the Merger and without any action on the part 
of the holder thereof, be exchanged for

                                       2

<PAGE>
 
and converted into .81522 (the "Conversion Ratio") of a Bancorp Share. From and 
after the Effective Time of the Merger, each holder of Cupertino Shares 
immediately prior to the Effective Time of the Merger (other than holders of 
Dissenting Shares, as defined below) shall have the right to receive, upon 
surrender of the certificates theretofore representing such Cupertino Shares, 
one or more certificates representing shares of Bancorp Shares equal to the 
number of Cupertino Shares represented by each surrendered certificate 
multiplied by the Conversion Ratio.

     2.2 Fractional Shares. No fractional Bancorp Shares shall be issued in the 
         -----------------
Merger. In lieu thereof, each record holder of Cupertino Shares who would
otherwise be entitled to receive a fractional Bancorp Share shall receive,
subject to prior surrender of certificates representing Cupertino Shares, an
amount in cash equal to the product (calculated to the nearest hundredth)
obtained by multiplying the average of the bid and asked prices quoted by each
brokerage firm acting as a market maker of Mid-Peninsula Shares for a Mid-
Peninsula Share for each of the twenty (20) consecutive trading days up to and
including the last business day of the calendar month end immediately prior to
the Closing Date (as defined in the Agreement), by the fraction of a Bancorp
Share to which such holder would otherwise be entitled. No such holder shall be
entitled to dividends, voting rights, interest, or any other rights in respect
of any such fractional share.

     2.3 Exchange Procedures.
         -------------------

          a. At and after the Effective Time of the Merger, Mid-Peninsula will 
deliver or cause to be delivered to U.S. Stock Transfer Corporation, which shall
serve as exchange agent (the "Exchange Agent"), such number of blank 
certificates representing Bancorp Shares sufficient to issue the number of 
Bancorp Shares issuable in the Merger and an amount of cash sufficient for 
payment of any fractional shares.

          b. As soon as practicable after the Effective Time of the Merger, the 
Exchange Agent will send written notice of exchange procedures to each record 
holder of certificates representing Cupertino Shares converted pursuant to 
Section 2.1(b) of this Merger Agreement.

          c. Upon surrender for cancellation to the Exchange Agent of one or 
more certificates evidencing Cupertino Shares ("Cupertino Certificates"), 
accompanied by a duly executed letter of transmittal in proper form, the 
Exchange Agent shall promptly deliver to each holder of such surrendered 
Cupertino Certificates one or more new certificates representing the appropriate
number of Bancorp Shares ("Bancorp Certificates") to which such holder is 
entitled, together with one or more checks for payment of cash in lieu of 
fractional interests to be issued in respect of the Cupertino Shares so 
surrendered.

          d. Until Cupertino Certificates have been surrendered and exchanged 
for Bancorp Certificates as herein provided, each outstanding Cupertino 
Certificate shall represent, on and after the Effective Time of the Merger, the 
right to receive the number of Bancorp Shares into which the number of Cupertino
Shares shown thereon have been converted. No dividends or other distributions of
any kind which are declared payable to holders of record of the Bancorp

                                       3
<PAGE>
 

Shares after the Effective Time of the Merger will be paid to persons otherwise
entitled to receive the same until such persons have surrendered their Cupertino
Certificates in exchange for Bancorp Certificates in the Manner herein provided,
but upon such surrender, such dividends or other distributions, from and after
the Effective Time of the Merger, will be paid to such persons in accordance
with the terms of such Bancorp Shares. In no event shall the persons entitled to
receive such dividends or other distributions be entitled to receive interest on
such dividends or other distributions.

         e.  No. transfer taxes shall be payable by any holder of Cupertino
Shares in respect of the issuance of Bancorp Certificates for Bancorp Shares,
except that if any Bancorp Certificate for Bancorp Shares is to be issued in a
name other than that in which the Cupertino Certificate surrendered shall be
been registered, it shall be a condition of such issuance that the person
requesting such issuance shall properly endorse the certificate or certificates
and shall pay to Bancorp any transfer taxes payable by reason thereof, or of any
prior transfer of such surrendered certificate, or establish to the satisfaction
of Bancorp that such taxes have been paid or are not payable.

         f.  Any Bancorp Shares delivered to the Exchange Agent and not issued
pursuant hereto at the end of one (1) year from the Effective Time of the Merger
shall be returned to Bancorp, in which event the persons, if any, entitled
thereto shall look only to Bancorp for payment thereof.

         g.  Notwithstanding anything to the contrary set forth herein, if any
holder of Cupertino Shares shall be unable to surrender his or her Cupertino
Certificates because such certificates have been lost or destroyed, such holder
may deliver in lieu thereof an indemnity bond in form and substance and with
surety satisfactory to Bancorp.

         h.  The Exchange Agent shall not be entitled to vote or exercise any
rights of ownership with respect to the Bancorp Shares held by it from time to
time hereunder, except that it shall receive and hold all dividends or other
distributions paid or distributed with respect to such Bancorp Shares for the
account of the persons entitled thereto. All dividends or distributions, and any
cash to be paid in lieu of fractional shares, if held by the Exchange Agent for
payment or delivery to the holders of unsurrendered certificates representing
Cupertino Shares and unclaimed at the end of one (1) year from the Effective
Time of the Merger, shall (together with any interest earned thereon) at such
time be paid or redelivered by the Exchange Agent to Bancorp, and after such
time any holder of certificate representing Cupertino Shares who has not
surrendered such certificate to the Exchange Agent shall, subject to applicable
law, look as a general creditor only to Bancorp for payment or delivery of such
dividends or distributions or cash, as the case may be.

    2.4  Dissenting Shareholders. Notwithstanding the provisions of this 
         -----------------------
Article II to the contrary, any Cupertino Shares held by persons who have 
satisfied the requirements of Chapter 13 of the California General Corporation 
Law (the "GCL") and who have not effectively withdrawn or lost their dissenters'
rights under Chapter 13 (such shares being referred to as "Dissenting Shares"), 
shall  not be converted pursuant to this Merger Agreement, but the holders

                                       4
<PAGE>
 
thereof shall be entitled only to such rights as are afforded them by Chapter 13
of the GCL.  Each dissenting shareholder who is entitled to payment for his or 
her Cupertino Shares pursuant to Chapter 13 of the GCL shall receive payment in
an amount determined pursuant to Chapter 13 of the GCL.

                                  ARTICLE III
                           ARTICLES OF INCORPORATION
                           -------------------------

     At the Effective Time of the Merger, the Articles of Incorporation of 
Mid-Peninsula, as in effect immediately prior to the Effective Time of the 
Merger, shall be amended (a) to change its name to Greater Bay Bancorp, (b) to 
establish a super-majority vote requirement of the Board of Directors equal to a
two-thirds vote on certain matters, and (c) to limit the liability of the 
directors and provide expanded indemnification rights of agents of the 
Surviving Corporation to the maximum extent permitted by law, as set forth in 
Exhibit I attached hereto and incorporated herein by this reference, and, as so 
- ---------
amended, shall hereto and incorporated herein by this reference, and, as
amended, shall be the Articles of Incorporation of Bancorp as the Surviving
Corporation from and after the Effective Time of the Merger until amended in
accordance with its provisions and as provided by law.

                                  ARTICLE IV
                                    BYLAWS
                                    ------

     At the Effective Time of the Merger, the Bylaws of Mid-Peninsula as in 
effect immediately prior to the Effective time of the Merger shall be amended
(a) to provide for a range in the number of authorized directors of not less
than seven (7) and not more than thirteen (13), with the exact number of
directors fixed at ten (10); and (b) to require a two-thirds (2/3rds vote of the
Board of Directors of Bancorp to approve certain matters affecting Bancorp,
including (i) a merger, sale of control or sale of material assets of Bancorp,
(ii) acquisitions by Bancorp, (iii) creation of new business units of Bancorp or
its subsidiaries, (iv) material changes in operating budgets of Bancorp or its 
subsidiaries, (v) material changes in the business organization or 
organizational structure of Bancorp or its subsidiaries, (vi) termination of any
executive officer or senior officer appointed to the Executive Management
Committee of Bancorp, and (vii) any change in the authorized range of directors;
and, as so amended, the Bylaws of Mid-Peninsula shall, at and after the
Effective Time of the Merger, be the Bylaws of Bancorp as the Surviving
Corporation until further amended as provided by law.

                                   ARTICLE V
                                   DIRECTORS
                                   ---------

     At the Effective Time of the Merger, the Board of Directors of Bancorp as 
the Surviving Corporation shall consist of five (5) members appointed by the 
Board of Directors of Mid-Peninsula and five (5) members appointed by the Board 
of Directors of Cupertino, in each case as designated in the Agreement.  Such 
persons shall serve as the Directors of the Surviving Corporation until such 
time as their successors have been duly elected and qualified.

                                       5
<PAGE>
 
                                  ARTICLE VI
                                FURTHER ACTION
                                --------------

        The parties shall deliver, or cause to be delivered, such documents or 
certificates as may be necessary, in the reasonable opinion of counsel for any 
of the parties, to effectuate the transactions set forth in this Merger 
Agreement. If, at any time after the Effective Time of the Merger, Bancorp as 
the Surviving Corporation or its successors or assigns shall determine that any 
further conveyance, assignment or other documents or any further action is 
necessary or desirable to further effectuate the transactions set forth herein 
or contemplated hereby, the officers and directors of the parties hereto shall 
execute and deliver, or cause to be executed and delivered, all such documents 
as may be reasonably required to effectuate such transactions.

                                  ARTICLE VII
                         EFFECTIVE TIME OF THE MERGER
                         ----------------------------

     The Merger will become effective upon the filing, in accordance with 
Section 1103 of the GCL, of an executed copy of this Merger Agreement and all 
other requisite accompanying certificates in the office of the California 
Secretary of State. The date and time of such filing with the California 
Secretary of State is referred to herein as the "Effective Time of the Merger."

                                 ARTICLE VIII
                             CONDITIONS TO MERGER
                             --------------------

     The filing of this Merger Agreement with the California Secretary of State 
as provided in Article VII above is conditioned upon the fulfillment, prior to 
such filing, of all the conditions to the Merger set forth in the Agreement.

                                  ARTICLE IX
                                  TERMINATION
                                  -----------

     This Merger Agreement may, by the mutual consent and action of the Boards 
of Directors of Mid-Peninsula and Cupertino, be abandoned at any time before or 
after approval thereof by the shareholders of Mid-Peninsula and Cupertino, but 
not later than the filing of this Merger Agreement with the California Secretary
of State pursuant to Section 1103 of the GCI. This Merger Agreement shall 
automatically be terminated and of no further force and effect if, prior to the 
filing of an executed copy hereof with the California Secretary of State as 
provided in Article VII hereof, the Agreement is terminated in accordance with 
the terms thereof.

                                   ARTICLE X
                              GENERAL PROVISIONS
                              ------------------

     10.1 Successors and Assigns. This Merger Agreement shall be binding upon 
and enforceable by the parties hereto and their respective successors, assigns 
and transferees, but this Merger Agreement may not be assigned by any party 
without the written consent of the other parties.

                                       6

<PAGE>
 
     10.2  Governing Law.  This Merger Agreement has been executed in the State 
           -------------
of California, and the laws of the State of California shall govern the validity
and interpretation hereof and the performance by the parties hereto.

     10.3  Amendments.  This Agreement, when duly executed and delivered, may 
           ----------
be modified or amended by action of the Board of Directors of Mid-Peninsula and 
Cupertino to the extent permitted by law without action by their respective 
shareholders.  This Merger Agreement may be modified or amended only by an 
instrument of equal formality signed by the parties or their duly authorized 
agents.

     10.4  Entire Agreement.  This Merger Agreement and the Agreement, 
           ----------------
together with all exhibits hereto and thereto and all documents referenced 
herein and therein, constitute the entire agreement of Mid-Peninsula and 
Cupertino, and supersede any prior written or oral negotiations, discussions, 
understandings and agreements between them, concerning the subject matter 
contained herein and therein.

     10.5  Counterparts.  This Merger Agreement may be executed in any number of
           ------------
counterparts, each of which shall be deemed to be an original instrument, but
all of which together shall constitute but one and the same agreement.

     IN WITNESS WHEREOF, Mid-Peninsula and Cupertino, pursuant to the approval
and authority duly given by resolution of their respective Boards of Directors,
have caused this Merger Agreement to be signed by their respective Presidents
and Secretaries on the day and year first above written.

CUPERTINO NATIONAL BANCORP,                    MID-PENINSULA BANCORP,
a California corporation                       a California corporation



By /s/ C. Donald Allen                         By /s/ David L. Kalkbrenner
  ----------------------------                   -----------------------------
  C. Donald Allen, President                     David L. Kalkbrenner, President
  and Chief Executive Officer                    and Chief Executive Officer


By /s/ Steven C. Smith                         By /s/ Warren R. Thoits
  ----------------------------                   -----------------------------
  Steven C. Smith, Secretary                     Warren R. Thoits, Secretary


                                       7
<PAGE>
 
                                   EXHIBIT 1
                                   ---------

                     AMENDMENT TO ARTICLES OF INCORPORATION
                                      OF
                             MID-PENINSULA BANCORP

     1. Article One of the Articles of Incorporation is amended to read as 
follows:

            "ONE: NAME.
             ---

                  The name of the corporation is Greater Bay Bancorp."

     2. Article Five of the Articles of Incorporation is amended to read as
follows:

            "FIVE DIRECTOR LIABILITY; INDEMNIFICATION OF AGENTS.
             ----

            (a) The liability of the directors of the corporation for monetary 
damages shall be eliminated to the fullest extent permissible under California 
law.

            (b) The indemnification of an agent [as defined in California 
Corporations Code section 317(a)] of this corporation, whether by bylaws, 
agreement or otherwise, for breach of duty to this corporation and its 
stockholders, may, to the extent not prohibited under California Corporations 
Code sections 317 and 204(a)     , exceed the indemnification otherwise 
permitted by section 317 of the Corporations Code."

     3. The following Article Six is added to the Articles of Incorporation:

            "SIX: SUPER-MAJORITY VOTING BY DIRECTORS.
             ---
                   
                  The vote of not less than two-thirds of all members of the 
board of directors shall be required to approve any of the following types of 
matters affecting the corporation.

            (a) Any merger, sale of control or sale of material assets of the 
corporation.
            (b) Any material acquisition by the corporation.
            (c) The creation of any new business unit of the corporation or any 
subsidiary of the corporation.
            (d) Any operating budget, or any material change therein, of the 
corporation or any subsidiary of the corporation.
            (e) Any material change in the business organization or 
organizational structure of the corporation or any subsidiary of the 
corporation.
            (f) Termination of the employment of any executive or senior officer
appointed to the Executive Management Committee of the corporation.
            (g) Any change in the authorized range of the number of directors of
the corporation."

<PAGE>
 
                            Certificate of Officers
                       Pursuant to Section 1103 of the 
                         California Corporations Code

                             Mid-Peninsula Bancorp


     David L. Kalkbrenner and Carol H. Rowland certify that:

     1.   They are the duly elected and acting Chief Executive Officer and Chief
Financial Officer, respectively, of Mid-Peninsula Bancorp.

     2.   This certificate is attached to the Merger Agreement dated as of 
November 15, 1996, providing for the merger of Mid-Peninsula Bancorp and 
Cupertino National Bancorp, with Mid-Peninsula Bancorp being the surviving 
corporation of the merger and changing its name to Greater Bay Bancorp.

     3.   The Merger Agreement in the form attached has been approved by the 
Board of Directors of the Corporation.

     4.   The principal terms of the Merger Agreement in the form attached were 
approved by the corporation by the vote of a number of shares of each class 
entitled to vote on the merger which equaled or exceeded the vote required, such
classes, the total number of outstanding shares of each class entitled to vote 
on the merger and the percentage vote required of each class being as follows:

<TABLE> 
<CAPTION> 
Name of Class     Shares Outstanding      Vote Required
- -------------     ------------------      -------------
<S>               <C>                     <C> 
Common Stock      1,637,593               Majority of shares outstanding
</TABLE> 

     IN WITNESS WHEREOF, the undersigned have executed this certificate on 
November 15, 1996.


     /s/ DAVID L. KALKBRENNER             /s/ CAROL H. ROWLAND
     --------------------------           --------------------------
     David L. Kalkbrenner                 Carol H. Rowland
     Chief Executive Officer              Chief Financial Officer


     The undersigned, Chief Executive Officer and Chief Financial Officer, 
respectively, of Mid-Peninsula Bancorp, a California corporation, each declares 
under penalty of perjury that the matters set out in the foregoing Certificate 
are true of his or her own knowledge.

     Executed at Palo Alto, California on November 15, 1996.


     /s/ DAVID L. KALKBRENNER             /s/ CAROL H. ROWLAND
     --------------------------           --------------------------
     David L. Kalkbrenner                 Carol H. Rowland
     Chief Executive Officer              Chief Financial Officer


<PAGE>
 
                            Certificate of Officers
                       Pursuant to Section 1103 of the 
                         California Corporations Code

                          Cupertino National Bancorp


     C. Donald Allen and Heidi R. Wulfe certify that:

     1.   They are the duly elected and acting Chief Executive Officer and Chief
Financial Officer, respectively, of Cupertino National Bancorp.

     2.   This certificate is attached to the Merger Agreement dated as of 
November 15, 1996, providing for the merger of Cupertino National Bancorp with 
and into Mid-Peninsula Bancorp, with Mid-Peninsula Bancorp being the surviving 
corporation of the merger and changing its name to Greater Bay Bancorp.

     3.   The Merger Agreement in the form attached has been approved by the 
Board of Directors of the corporation.

     4.   The principal terms of the Merger Agreement in the form attached were 
approved by the corporation by the vote of a number of shares of each class 
entitled to vote on the merger which equaled or exceeded the vote required, such
classes, the total number of outstanding shares of each class entitled to vote 
on the merger and the percentage vote required of each class being as follows:

<TABLE> 
<CAPTION> 
Name of class     Shares Outstanding      Vote Required
- -------------     ------------------      -------------
<S>               <C>                     <C> 
Common Stock      1,905,958               Majority of shares outstanding
</TABLE> 

     IN WITNESS WHEREOF, the undersigned have executed this certificate on 
November 15, 1996.


     /s/ C. Donald Allen                  /s/ Heidi R. Wulfe
     --------------------------           --------------------------
     C. Donald Allen                      Heidi R. Wulfe
     Chief Executive Officer              Chief Executive Officer


     The undersigned, Chief Executive Officer and Chief Executive Officer, 
respectively, of Cupertino National Bancorp, a California corporation, each
declares under penalty of perjury that the matters set out in the foregoing
Certificate are true of his or her own knowledge.

     Executed at Cupertino, California on November 15, 1996.


     /s/ C. Donald Allen                  /s/ Heidi R. Wulfe
     --------------------------           --------------------------
     C. Donald Allen                      Heidi R. Wulfe
     Chief Executive Officer              Chief Executive Officer

<PAGE>
 
                           CERTIFICATE OF AMENDMENT
                                      OF
                           ARTICLES OF INCORPORATION

David L. Kalkbrenner and Steven C. Smith verify that:

1.   They are the President and Chief Executive Officer and the Assistant 
     Secretary, respectively, of GREATER BAY BANCORP, a California corporation.

2.   The Articles of Incorporation of this corporation are amended by adding 
     thereto a new Article SEVEN to read as follows:

     "SEVEN. ELIMINATION OF CUMULATIVE VOTING.

     No holder of any class of stock of the corporation shall be entitled to
     cumulate votes at any election of directors of the corporation."

3.   The foregoing amendment of Articles of Incorporation has been duly approved
     by the Board of Directors.

4.   The foregoing amendment of Articles of Incorporation has been duly approved
     by the required vote of shareholders in accordance with Section 902 of the
     Corporations Code. The total number of outstanding shares of the
     corporation entitled to vote with respect to the amendment is 3,300,827.
     The number of shares voting in favor of the amendment equaled or exceeded
     the vote required. The percentage vote required was more than 50%.

We further declare under penalty of perjury under the laws of the State of 
California that the matters set forth in this certificate are true and correct 
to our own knowledge.

DATE: May 9, 1997

                                            /s/ David L. Kalkbrenner
                                            ------------------------------------
                                            David L. Kalkbrenner, President and
                                              Chief Executive Officer

                                            /s/ Steven C. Smith
                                            ------------------------------------
                                            Steven C. Smith, Assistant Secretary

                      

<PAGE>
 
                                                                     EXHIBIT 3.2

                                    BYLAWS

                                      OF

                              GREATER BAY BANCORP

<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                   PAGE
<S>                                                                                                <C>
ARTICLE I      Applicability.....................................................................    1

     Section 1.  Applicability of Bylaws.........................................................    1

ARTICLE II     Offices...........................................................................    1

     Section 1.  Principal Executive Office......................................................    1

     Section 2.  Other Offices...................................................................    1

     Section 3.  Change in Location or Number of Offices.........................................    1

ARTICLE III    Meetings of Shareholders..........................................................    1

     Section 1.  Place of Meetings...............................................................    1

     Section 2.  Annual Meetings.................................................................    1

     Section 3.  Special Meetings................................................................    1

     Section 4.  Notice of Annual, Special or Adjourned Meetings.................................    2

     Section 5.  Record Date.....................................................................    3

     Section 6.  Quorum; Action at Meetings......................................................    3

     Section 7.  Adjournment.....................................................................    4

     Section 8.  Validation of Defectively Called, Noticed or Held Meetings......................    4

     Section 9.  Voting for Election of Directors................................................    4

     Section 10. Proxies.........................................................................    5

     Section 11. Inspectors of Election..........................................................    5

     Section 12. Action by Written Consent.......................................................    5

ARTICLE IV     Directors.........................................................................    6

     Section 1.  Number of Directors.............................................................    6

     Section 2.  Election of Directors...........................................................    6

     Section 3.  Term of Office..................................................................    7
</TABLE> 

                                       i
<PAGE>
 
<TABLE> 

<S>                                                                                                <C> 
     Section 4.  Vacancies.......................................................................    7

     Section 5.  Removal.........................................................................    7

     Section 6.  Resignation.....................................................................    8

     Section 7.  Fees and Compensation...........................................................    8

ARTICLE V      Committees of the Board of Directors..............................................    8

     Section 1.  Designation of Committees.......................................................    8

     Section 2.  Powers of Committees............................................................    8

ARTICLE VI     Meetings of the Board of Directors and Committees Thereof.........................    9

     Section 1.  Place of Meetings...............................................................    9

     Section 2.  Organization Meeting............................................................    9

     Section 3.  Other Regular Meetings..........................................................    9

     Section 4.  Special Meetings................................................................    9

     Section 5.  Notice of Special Meetings......................................................    9

     Section 6.  Validation of Defectively Held Meetings.........................................   10

     Section 7.  Quorum; Action at Meetings; Telephone Meetings..................................   10

     Section 8.  Adjournment.....................................................................   10

     Section 9.  Action Without a Meeting........................................................   10

     Section 10. Meetings of and Action by Committees............................................   10

ARTICLE VII     Officers.........................................................................   10

     Section 1.  Officers........................................................................   10

     Section 2.  Election of Officers............................................................   11

     Section 3.  Subordinate Officers, Etc.......................................................   11

     Section 4.  Removal and Resignation.........................................................   11

     Section 5.  Vacancies.......................................................................   11

     Section 6.  Chairman of the Board...........................................................   11
</TABLE> 
                                      ii
<PAGE>
 
<TABLE> 
<S>                                                                                                <C> 
     Section 7.  President.......................................................................   11

     Section 8.  Vice President..................................................................   12

     Section 9.  Secretary.......................................................................   12

     Section 10. Treasurer.......................................................................   12

ARTICLE VIII   Records and Reports...............................................................   12

     Section 1.  Minute Book - Maintenance and Inspection........................................   12

     Section 2.  Share Resister - Maintenance and Inspection.....................................   12

     Section 3.  Books and Records of Account - Maintenance and Inspection.......................   13

     Section 4.  Bylaws - Maintenance and Inspection.............................................   13

     Section 5.  Annual Report to Shareholders...................................................   13

ARTICLE IX     Miscellaneous.....................................................................   13

     Section 1.  Checks, Drafts, Etc.............................................................   13

     Section 2.  Contracts, Etc. - How Executed..................................................   13

     Section 3.  Certificates of Stock...........................................................   13

     Section 4.  Lost Certificates...............................................................   13

     Section 5.  Representation of Shares of Other Corporations..................................   14

     Section 6.  Construction and Definitions....................................................   14

     Section 7.  Indemnification of Corporate Agents; Purchase of Liability Insurance............   14

ARTICLE X      Amendments........................................................................   15

     Section 1.  Amendments......................................................................   15
</TABLE>
                                      iii
<PAGE>
 
                                    BYLAWS

                                      OF

                              GREATER BAY BANCORP


                                   ARTICLE I

                                 APPLICABILITY
                                 -------------


     Section 1.    Applicability of Bylaws. These Bylaws govern, except as
                   -----------------------
otherwise provided by statute or its Articles of Incorporation, the management
of the business and the conduct of the affairs of the Corporation.


                                  ARTICLE II

                                    OFFICES
                                    -------

     Section 1.    Principal Executive Office. The location of the principal
                   --------------------------
executive office of the Corporation is 420 Cowper Street, Palo Alto, California
94301-1504.

     Section 2.    Other Offices. The Board of Directors may establish other
                   -------------
offices at any place or places within or without the State of California.

     Section 3.    Change in Location or Number of Offices. The Board of
                   ---------------------------------------
Directors may change any office from one location to another or eliminate any
office or offices.


                                  ARTICLE III

                           MEETINGS OF SHAREHOLDERS
                           ------------------------

     Section 1.    Place of Meetings. Meetings of the shareholders shall be held
                   -----------------
at any place within or without the State of California designated by the Board
of Directors, or, in the absence of such designation, at the principal executive
office of the Corporation.

     Section 2.    Annual Meetings. An annual meeting of the shareholders shall
                   ---------------
be held within 180 days following the end of the fiscal year of the Corporation
at a date and time designated by the Board of Directors. Directors shall be
elected at each annual meeting and any other proper business may be transacted
thereat.

     Section 3.    Special Meetings. (a) Special meetings of the shareholders
                   ----------------
may be called by a majority of the Board of Directors, the Chairman of the
Board, the President or the holders of shares entitled to cast not less than 10
percent of the votes at such meeting.
<PAGE>
 
             (b)   Any request for the calling of a special meeting of the
shareholders shall (1) be in writing, (2) specify the date and time thereof
which date shall be not less than 35 nor more than 60 days after receipt of the
request, (3) specify the general nature of the business to be transacted thereat
and (4) be given either personally or by first-class mail, postage prepaid, or
other means of written communication to the Chairman of the Board, President,
any Vice President or Secretary of the Corporation. The officer receiving a
proper request to call a special meeting of the shareholders shall cause notice
to be given pursuant to the provisions of Section 4 of this article to the
shareholders entitled to vote thereat that a meeting will be held at the date
and time specified by the person or persons calling the meeting.

             (c)   No business may be transacted at a special meeting unless the
general nature thereof was stated in the notice of such meeting.

     Section 4.    Notice of Annual, Special or Adjourned Meetings. (a) Whenever
                   -----------------------------------------------
any meeting of the shareholders is to be held, a written notice of such meeting
shall be given in the manner described in subdivision (d) of this section not
less than 10 nor more than 60 days before the date thereof to each shareholder
entitled to vote thereat. The notice shall state the place, date and hour of the
meeting and (1) in the case of a special meeting, the general nature of the
business to be transacted or (2) in the case of the annual meeting, those
matters which the Board of Directors, at the time of the giving of the notice,
intend to present for action by the shareholders including, whenever directors
are to be elected at a meeting, the names of nominees intended at the time of
giving of the notice to be presented by management for election.

             (b)   Any proper matter may be presented at an annual meeting for
action, except as is provided in subdivision (f) of Section 601 of the
Corporations Code of the State of California.

             (c)   Notice need not be given of an adjourned meeting if the time
and place thereof are announced at the meeting at which the adjournment is
taken, except that if the adjournment is for more than 45 days or if after the
adjournment a new record date is provided for the adjourned meeting, a notice of
the adjourned meeting shall be given to each shareholder of record entitled to
vote thereat.

             (d)   Notice of any meeting of the shareholders or any report shall
be given either personally or by first class mail, postage prepaid, or other
means of written communication, addressed to the shareholder at his address
appearing on the books of the Corporation or given by him to the Corporation for
the purpose of notice; or if no such address appears or is given, at the place
where the principal executive office of the Corporation is located or by
publication at least once in a newspaper of general circulation in the county in
which the principal executive office is located. The notice or report shall be
deemed to have been given at the time when delivered personally to the recipient
or deposited in the mail or sent by other means of written communication. An
affidavit of mailing of any notice or report in accordance with the provisions
of these Bylaws or the General Corporation Law of the State of California,
executed by the Secretary, assistant secretary or any transfer agent of the
Corporation, shall be prima facie evidence of the notice or report.
                      ----- -----

                                       2
<PAGE>
 
             (e)   If any notice or report addressed to the shareholder at his
address appearing on the books of the Corporation is returned to the Corporation
by the United States Postal Service marked to indicate that the United States
Postal Service is unable to deliver the notice or report to the shareholder at
such address, all future notices or reports shall be deemed to have been duly
given without further mailing if the same shall be available for the shareholder
upon his written demand at the principal executive office of the Corporation for
a period of one year from the date of the giving of the notice or report to all
other shareholders.

     Section 5.    Record Date. (a) The Board of Directors may fix a time in the
                   -----------
future as a record date for the determination of the shareholders (1) entitled
to notice of any meeting or to vote thereat, (2) entitled to receive payment of
any dividend or other distribution or allotment of any rights or (3) entitled to
exercise any rights in respect of any other lawful action. The record date so
fixed shall be not more than 60 nor less than 10 days prior to the date of any
meeting of the shareholders nor more than 60 days prior to any other action.

             (b)   In the event no record date is fixed:

                   a. The record date for determining the shareholders entitled
to notice of or to vote at a meeting of shareholders shall be at the close of
business on the business day next preceding the day on which notice is given or,
if notice is waived, at the close of business on the business day next preceding
the day on which the meeting is held.

                   b. The record date for determining shareholders entitled to
give consent to corporate action in writing without a meeting, when no prior
action by the Board of Directors has been taken, shall be the day on which the
first written consent is given.

                   c. The record date for determining shareholders for any other
purpose shall be at the close of business on the day on which the Board of
Directors adopts the resolution relating thereto, or the 60th day prior to the
date of such other action, whichever is later.

             (c)   Only shareholders of record at the close of business on the
record date are entitled to notice and to vote or to receive a dividend,
distribution or allotment of rights or to exercise the rights, as the case may
be, notwithstanding any transfer of any shares on the books of the Corporation
after the record date.

             (d)   A determination of shareholders of record entitled to notice
of or to vote at a meeting of shareholders shall apply to any adjournment of the
meeting unless the Board of Directors fixes a new record date for the adjourned
meeting, but the Board shall fix a new record date if the meeting is adjourned
for more than 45 days from the date set for the original meeting.

     Section 6.    Quorum; Action at Meetings. (a) A majority of the shares
                   --------------------------
entitled to vote, represented in person or by proxy, shall constitute a quorum
at a meeting of the shareholders.

             (b)   Except as provided in subdivision (c) of this section, the
affirmative vote of a majority of the shares represented and voting at a duly
held meeting at which a quorum is present (which shares voting affirmatively
also constitute at least a majority of the required

                                       3
<PAGE>
 
quorum) shall be the act of the shareholders, unless the vote of a greater
number is required by Law or the Articles of Incorporation.

             (c)   The shareholders present at a duly called or held meeting at
which a quorum is present may continue to transact business until adjournment
notwithstanding the withdrawal of enough shareholders to leave less than a
quorum, if any action taken (other than adjournment) is approved by at least a
majority of the shares required to constitute a quorum.

     Section 7.    Adjournment. Any meeting of the shareholders may be adjourned
                   -----------
from time to time whether or not a quorum is present by the vote of a majority
of the shares represented thereat either in person or by proxy. At the adjourned
meeting the Corporation may transact any business which might have been
transacted at the original meeting.

     Section 8.    Validation of Defectively Called, Noticed or Held Meetings.
                   ----------------------------------------------------------
(a) The transactions of any meeting of the shareholders, however called and
noticed, and wherever held, are as valid as though had at a meeting duly held
after regular call and notice, if a quorum is present either in person or by
proxy, and if, either before or after the meeting, each of the persons entitled
to vote thereat, not present in person or by proxy, signs a written waiver of
notice or a consent to the holding of the meeting or an approval of the minutes
thereof. All such waivers, consents and approvals shall be filed with the
corporate records or made a part of the minutes of the meeting.

             (b)   Attendance of a person at a meeting shall constitute a waiver
of notice of, and presence at, such meeting, except (1) when the person objects,
at the beginning of the meeting, to the transaction of any business because the
meeting is not lawfully called or convened and (2) that attendance at a meeting
is not a waiver of any right to object to the consideration of any matter
required by the General Corporation Law of the State of California to be
included in the notice but not so included, if such objection is expressly made
at the meeting.

             (c)   Any written waiver of notice shall comply with subdivision
(f) of Section 601 of the Corporations Code of the State of California.

     Section 9.    Voting for Election of Directors. (a) Shareholders shall
                   --------------------------------
not be permitted to cumulate their votes for the election of directors.

             (b)   Elections for directors may be by voice vote or by ballot 
unless any shareholder entitled to vote demands election by ballot at the 
meeting prior to the voting, in which case the vote shall be by ballot.

             (c) In any election of directors, the candidates receiving the
highest number of votes of the shares entitled to be voted for them up to the
number of directors of each class to be elected by such shares are elected as
directors. If, at any meeting of shareholders, due to a vacancy or vacancies or
otherwise, directors of more than one class of the Board of Directors are to be
elected, each class of directors to be elected at the meeting shall be elected
in a separate election.



                                       4
<PAGE>
 

     Section 10.   Proxies. (a) Every person entitled to vote shares may
                   -------
authorize another person or persons to act with respect to such shares by a
written proxy signed by him or his attorney-in-fact and filed with the Secretary
of the Corporation. A proxy shall be deemed signed if the shareholder's name is
placed on the proxy (whether by manual signature, typewriting, telegraphic
transmission or otherwise) by him or his attorney-in-fact.

             (b)   Any duly executed proxy shall continue in full force and
effect until the expiration of the term specified therein or upon its earlier
revocation by the person executing it prior to the vote pursuant thereto (1) by
a writing delivered to the Corporation stating that it is revoked, (2) by a
subsequent proxy executed by the person executing the proxy or (3) by the
attendance at the meeting and voting in person by the person executing the
proxy. No proxy shall be valid after the expiration of 11 months from the date
thereof unless otherwise provided in the proxy. The date contained on the form
of proxy shall be deemed to be the date of its execution.

             (c)   A proxy which states that it is irrevocable for the period
specified therein shall be subject to the provisions of subdivisions (e) and (f)
of Section 705 of the Corporations Code of the State of California.

     Section 11.   Inspectors of Election. (a) In advance of any meeting of the
                   ----------------------
shareholders, the Board of Directors may appoint either one or three persons
(other than nominees for the office of director) as inspectors of election to
act at such meeting or any adjournments thereof. If inspectors of election are
not so appointed, or if any person so appointed fails to appear or refuses to
act, the chairman of any such meeting may, and on the request of any shareholder
or his proxy shall, appoint inspectors of election (or persons to replace those
who so fail or refuse to act) at the meeting. If appointed at a meeting on the
request of one or more shareholders or the proxies thereof, the majority of
shares represented in person or by proxy shall determine whether one or three
inspectors are to be appointed.

             (b)   The duties of inspectors of election and the manner of
performance thereof shall be as prescribed in Section 707 of the Corporations
Code of the State of California.

     Section 12.   Action by Written Consent. (a) Subject to subdivisions (b)
                   -------------------------
and (c) of this section, any action which may be taken at any annual or special
meeting of the shareholders may be taken without a meeting, without a vote and
without prior notice, if a consent in writing, setting forth the action so
taken, is signed by the holders of outstanding shares having not less than the
minimum number of votes which would be necessary to authorize or take such
action at a meeting in which all shares entitled to vote thereon were present
and voted. All such consents shall be filed with the Secretary of the
Corporation and maintained with the corporate records.

                                       5
<PAGE>
 
             (b)   Except for the election of a director by written consent to
fill a vacancy (other than a vacancy created by removal), directors may be
elected by written consent only by the unanimous written consent of all shares
entitled to vote for the election of directors. In the case of an election of a
director by written consent to fill a vacancy (other than a vacancy created by
removal), any such election requires the consent of a majority of the
outstanding shares entitled to vote.

             (c)   Unless the consents of all shareholders entitled to vote have
been solicited in writing, notice of any shareholder approval without a meeting
by less than unanimous written consent shall be given as provided in subdivision
(b) of Section 603 of the Corporations Code of the state of California.

             (d)   Any shareholder giving a written consent, or his
proxyholders, or a personal representative of the shareholder or their
respective proxyholders, may revoke the consent by a writing received by the
Corporation prior to the time that written consents of the number of shares
required to authorized the proposed action have been filed with the Secretary of
the Corporation, but may not do so thereafter. Such revocation is effective upon
its receipt by the Secretary of the Corporation.


                                  ARTICLE IV

                                   DIRECTORS
                                   ---------

     Section 1.    Number of Directors. (a) The authorized number of directors
                   -------------------
shall be no less than seven (7) nor more than thirteen (13). The exact number of
directors shall be fixed from time to time, within the limits specified in this
subdivision, by an amendment of subdivision (b) of this section adopted by the
Board of Directors.

             (b)   The exact number of directors shall be ten (10) until changed
as provided in subdivision (a) of this section.

             (c)   The maximum or minimum authorized number of directors may
only be changed by an amendment of this section approved by the vote or written
consent of a majority of the outstanding shares entitled to vote; provided,
however, that an amendment reducing the minimum number to a number less than 5
shall not be adopted if the votes cast against its adoption at a meeting (or the
shares not consenting in the case of action by written consent) exceed 16-2/3%
of such outstanding shares; and provided, further, that in no case shall the
stated maximum authorized number of directors exceed two times the stated
minimum number of authorized directors minus one.

     Section 2.    Classification, Election and Term of Office.
                   -------------------------------------------
 
             (a) Nomination for election of directors may be made by the Board
of Directors or by any holder of any outstanding class of capital stock of the
Corporation entitled to vote for the election of directors. Notice of intention
to make any nominations shall be made in writing and shall be delivered or
mailed to the President of the Corporation not less than twenty-one (21) days
nor more than sixty (60) days prior to any meeting of shareholders called for
the election of directors; provided, however, that if less than twenty-one (21)
days' notice is given to shareholders, such notice of intention to nominate
shall be mailed or delivered to the President of the Corporation not later than
the close of business on the tenth (10th) day following the day on which the
notice of meeting was mailed; provided, further, that if notice of such meeting
is sent by third class mail (if permitted by law), no notice of intention to
make nominations shall be required. Such notification shall contain the
following information to the extent known to the notifying shareholder.

     (1)  the name and address of each proposed nominee;

     (2)  the principal occupation of each proposed nominee;

     (3)  the number of shares of capital stock of the Corporation owned by each
          proposed nominee;

     (4)  the name and residence address of the notifying shareholder; and

     (5)  the number of shares of capital stock of the Corporation owned by the
          notifying shareholder.
 
     Nominations not made in accordance herewith may, in the discretion of the
Chairman of the meeting, be disregarded and upon the Chairman's instructions,
the inspectors of election can disregard all votes cast for each such nominee.
A copy of this paragraph shall be set forth in a notice to shareholders of any
meeting at which directors are to be elected.
 
             (b) In the event that the authorized number of directors shall be
fixed at nine (9) or more, the Board of Directors shall be divided into three
classes, designated Class I, Class II and Class III. Each class shall consist of
one-third of the directors or as close an approximation as possible. The initial
term of office of the directors of Class I shall expire at the annual meeting to
be held during fiscal year 1998, the initial term of office of the directors of
Class II shall expire at the annual meeting to be held during fiscal 1999 and
the initial term of office of the directors of Class III shall expire at the
annual meeting to be held during fiscal year 2000. At each annual meeting,
commencing with the annual meeting to be held during fiscal year 1998, each of
the successors to the directors of the class whose term shall have expired at
such annual meeting shall be elected for a term running until the third annual
meeting next succeeding his or her election and until his or her successor shall
have been duly elected and qualified.
 
     In the event that the authorized number of directors shall be fixed with at
least six (6) but less than nine (9), the Board of Directors shall be divided
into two classes, designated Class I and Class II. Each class shall consist of
one-half of the directors or as close an approximation as possible. At each
annual meeting, each of the successors to the directors of the class whose
term shall have expired at such annual meeting shall be elected for a term
running until the second annual meeting next succeeding his or her election
and until his or her successor shall have been duly elected and qualified.
 
     Notwithstanding the rule that the classes shall be as nearly equal in
number of directors as possible, in the event of any change in the authorized
number of directors, each director then continuing to serve as such shall
nevertheless continue as a director of the class of which he or she is a member
until the expiration of his or her current term, or his or her prior death,
resignation or removal.

     At each annual election, the directors chosen to succeed those whose terms
then expire shall be of the same class as the directors they succeed, unless,
by reason of any intervening changes in the authorized number of directors,
the Board of Directors shall designate one or more directorships whose term
then expires as directorships of another class in order more nearly to achieve
equality of number of directors among the classes.
 
     This section may only be amended or repealed by approval of the Board of
Directors and the outstanding shares (as defined in Section 152 of the
California General Corporation Law) voting as a single class, notwithstanding
Section 903 of the California General Corporation Law.

                                       6
<PAGE>
 
     Section 3.    Term of Office. Each director, including a director elected
                   --------------
to fill a vacancy, shall hold office until the expiration of the term for which
he is elected and until a successor has been elected.

     Section 4.    Vacancies. (a) A vacancy in the Board of Directors exists
                   ---------
whenever any authorized position of director is not then filled by a duly
elected director, whether caused by death, resignation, removal, change in the
authorized number of directors or otherwise.

             (b)   Except for a vacancy created by the removal al a director,
vacancies on the Board of Directors may be filled by a majority of the directors
then in office, whether or not less than a quorum, or by a sole remaining
director. A vacancy created by the removal of a director shall be filled only by
shareholders.

             (c)   The shareholders may elect a director at any time to fill any
vacancy not filled by the directors.

     Section 5.    Removal. (a) The Board of Directors may declare vacant the
                   -------
office of a director who has been declared of unsound mind by an order of court
or convicted of a felony.

             (b)   Any or all of the directors may be removed without cause if
such removal is approved by a majority of the outstanding shares entitled to
vote; provided, however, that no director may be removed (unless the entire
Board of Directors is removed) if whenever the votes

                                       7
<PAGE>
 
cast against removal, or not consenting in writing to such removal, would be
sufficient to elect such director if voted cumulatively at an election at which
the same total number of votes were cast (or, if such action is taken by written
consent, all shares entitled to vote were voted) and the entire number of
directors authorized at the time of his most recent election were then being
elected.

             (c)   Any reduction of the authorized number of directors does not
remove any director prior to the expiration of his term of office.

     Section 6.    Resignation. Any director may resign effective upon giving
                   -----------
written notice to the Chairman of the Board, the President, the Secretary or the
Board of Directors of the Corporation, unless the notice specifies a later time
for the effectiveness of such resignation. If the resignation is effective at a
future time, a successor may be elected to take office when the resignation
becomes effective.

     Section 7.    Fees and Compensation. Directors may be paid for their
                   ---------------------
services in such capacity a sum in such amounts, at such times and upon such
conditions as may be determined from time to time by resolution of the Board of
Directors, and may be reimbursed for their expenses, if any, incurred in such
capacity, including (without limitation) expenses of attendance at any meeting
of the Board. No such payments shall preclude any director from serving the
Corporation in any other capacity and receiving compensation in any manner
therefor.


                                   ARTICLE V

                     COMMITTEES OF THE BOARD OF DIRECTORS
                     ------------------------------------

     Section 1.    Designation of Committees. The Board of Directors may, by
                   -------------------------
resolution adopted by a majority of the authorized number of directors,
designate (1) one or more committees, each consisting of two or more directors
and (2) one or more directors as alternate members of any committee, who may
replace any absent member at any meeting thereof. Any member or alternate member
of a committee shall serve at the pleasure of the Board.

     Section 2.    Powers of Committees. Any committee, to the extent provided
                   --------------------
in the resolution of the Board of Directors designating such committee, shall
have all the authority of the Board, except with respect to:

             (a)   The approval of any action for which the General Corporation
Law of the State of California also requires any action by the shareholders;

             (b)   The filling of vacancies on the Board or in any committee
thereof;

             (c)   The fixing of compensation of the directors for serving on
the Board or on any committee thereof;

             (d)   The amendment or repeal of these Bylaws or the adoption of
new bylaws;

                                       8
<PAGE>
 
             (e)   The amendment or repeal of any resolution of the Board which
by its express terms is not so amenable or resealable;

             (f)   A distribution to the shareholders of the Corporation, except
at a rate or in a periodic amount or within a price range determined by the
Board of Directors; or

             (g)   The designation of other committees of the Board or the
appointment of members or alternate members thereof.


                                  ARTICLE VI

                      MEETINGS OF THE BOARD OF DIRECTORS
                      ----------------------------------

                            AND COMMITTEES THEREOF
                            ----------------------

     Section 1.    Place of Meetings. Regular meetings of the Board of Directors
                   -----------------
shall be held at any place within or without the State of California which has
been designated from time to time by the Board or, in the absence of such
designation, at the principal executive office of the Corporation. Special
meetings of the Board shall be held either at any place within or without the
State of California which has been designated in the notice of the meeting or,
if not stated in the notice or if there is no notice, at the principal executive
office of the Corporation.

     Section 2.    Organization Meeting. Immediately following each annual
                   --------------------
meeting of the shareholders the Board of Directors shall hold a regular meeting
for the purpose of organization and the transaction of other business. Notice of
any such meeting is not required.

     Section 3.    Other Regular Meetings. Other regular meetings of the Board
                   ----------------------
of Directors shall be held without call at such time as shall be designated from
time to time by the Board. Notice of any such meeting is not required.

     Section 4.    Special Meetings. Special meetings of the Board of Directors
                   ----------------
may be called at any time for any purpose or purposes by the Chairman of the
Board or the President or any vice president or the Secretary or any two
directors. Notice shall be given of any special meeting of the Board.

     Section 5.    Notice of Special Meetings. (a) Notice of the time and place
                   --------------------------
of special meetings of the Board of Directors shall be delivered personally or
by telephone to each director or sent to each director by first-class mail or
telegraph, charges prepaid. Such notice shall be given four days prior to the
holding of the special meeting if sent by mail or 48 hours prior to the holding
thereof if delivered personally or given by telephone or telegraph. The notice
or report shall be deemed to have been given at the time when delivered
personally to the recipient or deposited in the mail or sent by other means of
written communication.

             (b)   Notice of any special meeting of the Board of Directors need
not specify the purpose thereof and need not be given to any director who signs
a waiver of notice, whether before or after the meeting, or who attends the
meeting without protesting, prior thereto or at its commencement, the lack of
notice to him.

                                       9
<PAGE>
 
     Section 6.    Validation of Defectively Held Meetings. The transactions of
                   ---------------------------------------
any meeting of the Board of Directors, however called and noticed or wherever
held, are as valid as though had at a meeting duly held after regular call and
notice if a quorum is present and if, either before or after the meeting, each
of the directors not present signs a written waiver of notice, a consent to
holding the meeting or an approval of the minutes thereof. Such waivers,
consents and approvals (1) need not specify the purpose of any meeting of the
Board of Directors and (2) shall be filed with the corporate records or made a
part of the minutes of the meeting.

     Section 7.    Quorum; Action at Meetings; Telephone Meetings. (a) A
                   ----------------------------------------------
majority of the authorized number of directors shall constitute a quorum for the
transaction of business. Every act or decision done or made by a majority of the
directors present at a meeting duly held at which a quorum is present is the act
of the Board of Directors, unless action by a greater proportion of the
directors is required by law or the Articles of Incorporation.

             (b)   A meeting at which a quorum is initially present may continue
to transact business notwithstanding the withdrawal of directors, if any action
taken is approved by at least a majority of the required quorum for such
meeting.

             (c)   Members of the Board of Directors may participate in a
meeting through use of conference telephone or similar communications equipment
so long as all members participating in such meeting can hear one another.

     Section 8.    Adjournment. A majority of the directors present, whether or
                   -----------
not a quorum is present, may adjourn any meeting to another time and place. If
the meeting is adjourned for more than 24 hours, notice of any adjournment to
another time or place shall be given prior to the time of the adjourned meeting
to the directors who were not present at the time of the adjournment.

     Section 9.    Action Without a Meeting. Any action required or permitted to
                   ------------------------
be taken by the Board of Directors may be taken without a meeting, if all
members of the Board individually or collectively consent in writing to such
action. Such written consent or consents shall be filed with the minutes of the
proceedings of the Board. Such action by written consent shall have the same
force and effort as a unanimous vote of such directors.

     Section 10.   Meetings of and Action by Committees. The provisions of this
                   ------------------------------------
Article apply to committees of the Board of Directors and action by such
committees with such changes in the language of those provisions as are
necessary to substitute the committee and its members for the Board and its
members.

                                  ARTICLE VII

                                   OFFICERS
                                   --------

     Section 1.    Officers. The Corporation shall have as officers, a
                   --------
President, a Secretary and a Treasurer. The Treasurer is the chief financial
officer of the Corporation unless the Board of Directors has by resolution
designated a vice president or other officer to be the chief financial

                                      10
<PAGE>
 
officer. The Corporation may also have at the discretion of the Board, a
Chairman of the Board, one or more vice presidents, one or more assistant
secretaries, one or more assistant treasurers and such other officers as may be
appointed in accordance with the provisions of Section 3 of this Article. One
person may hold two or more offices.

     Section 2.    Election of Officers. The officers of the Corporation, except
                   --------------------
such officers as may be appointed in accordance with the provisions of Section 3
or Section 5 of this Article, shall be chosen by the Board of Directors.

     Section 3.    Subordinate Officers, Etc. The Board of Directors may appoint
                   -------------------------
by resolution, and may empower the Chairman of the Board, if there be such an
officer, or the President, to appoint such other officers as the business of the
Corporation may require, each of whom shall hold office for such period, have
such authority and perform such duties as are determined from time to time by
resolution of the Board or, in the absence of any such determination, as are
provided in these Bylaws. Any appointment of an officer shall be evidenced by a
written instrument filed with the Secretary of the Corporation and maintained
with the corporate records.

     Section 4.    Removal and Resignation. (a) Any officer may be removed,
                   -----------------------
either with or without cause, by the Board of Directors or, except in case of
any officer chosen by the Board, by any officer upon whom such power of removal
may be conferred by resolution of the Board.

             (b)   Any officer may resign at any time effective upon giving
written notice to the Chairman of the Board, President, any vice president or
Secretary of the Corporation, unless the notice specifies a later time for the
effectiveness of such resignation.

     Section 5.    Vacancies. A vacancy in any office because of death,
                   ---------
resignation, removal, disqualification or any other cause shall be filled in the
manner prescribed in these Bylaws for regular appointments to such office.

     Section 6.    Chairman of the Board. If there is a Chairman of the Board,
                   ---------------------
he shall, if present, preside at all meetings of the Board of Directors,
exercise and perform such other powers and duties as may be from time to time
assigned to him by resolution of the Board and, if there is no President, the
Chairman of the Board shall be the chief executive officer of the Corporation
and have the power and duties set forth in Section 7 of this Article.

     Section 7.    President. Subject to such supervisory powers, if any, as may
                   ---------
be given by the Board of Directors to the Chairman of the Board, if there be
such an officer, the President shall be the chief executive officer and general
manager of the Corporation and shall, subject to the control of the Board, have
general supervision, direction and control of the business and affairs of the
Corporation. He shall preside at all meetings of the shareholders and, in the
absence of the Chairman of the Board, or if there be none, at all meetings of
the Board. He shall have the general powers and duties of management usually
vested in the office of president of a corporation, and shall have such other
powers and duties as may be prescribed from time to time by resolution of the
Board.

                                      11
<PAGE>
 
     Section 8.    Vice President. In the absence or disability of the
                   --------------
President, the vice presidents in order of their rank as fixed by the Board of
Directors or, if not ranked, the Vice President designated by the Board, shall
perform all the duties of the President, and when so acting shall have all the
powers of, and be subject to all the restrictions upon, the President. The vice
presidents shall have such other powers and perform such other duties as from
time to time may be prescribed for them respectively by the Board or as the
President may from time to time delegate.

     Section 9.    Secretary. (a) The Secretary shall keep or cause to be kept
                   ---------
(1) the minute book, (2) the share register and (3) the seal, if any, of the
Corporation.

             (b)   The Secretary shall give, or cause to be given, notice of all
meetings of the shareholders and of the Board of Directors required by these
Bylaws or by law to be given, and shall have such other powers and perform such
other duties as may be prescribed from time to time by the Board.

     Section 10.   Treasurer. (a) The Treasurer shall keep, or cause to be kept,
                   ---------
the books and records of account of the Corporation.

             (b)   The Treasurer shall deposit all monies and other valuables in
the name and to the credit of the Corporation with such depositories as may be
designated from time to time by resolution of the Board of Directors. He shall
disburse the funds of the Corporation as may be ordered by the Board of
Directors, shall render to the President and the Board, whenever they request
it, an account of all of his transactions as Treasurer and of the financial
condition of the Corporation, and shall have such other powers and perform such
other duties as may be prescribed from time to time by the Board or as the
President may from time to time delegate.


                                 ARTICLE VIII

                              RECORDS AND REPORTS
                              -------------------

     Section 1.    Minute Book - Maintenance and Inspection. The Corporation
                   ----------------------------------------
shall keep or cause to be kept in written form at its principal executive office
or such other place as the Board of Directors may order, a minute book which
shall contain a record of all actions by its shareholders, Board or committees
of the Board including the time, date and place of each meeting; whether a
meeting is regular or special and, if special, how called; the manner of giving
notice of each meeting and a copy thereof; the names of those present at each
meeting of the Board or committees thereof; the number of shares present or
represented at each meeting of the shareholders; the proceedings of all
meetings; any written waivers of notice, consents to the holding of a meeting or
approvals of the minutes thereof; and written consents for action without a
meeting.

     Section 2.    Share Resister - Maintenance and Inspection. The Corporation
                   -------------------------------------------
shall keep or cause to be kept at its principal executive office or, if so
provided by resolution of the Board of Directors, at the Corporation's transfer
agent or registrar, a share register, or a duplicate share register, which shall
contain the names of the shareholders and their addresses, the number and

                                      12
<PAGE>
 
classes of shares held by each, the number and date of certificates issued for
the same and the number and date of cancellation of every certificate
surrendered for cancellation.

     Section 3.    Books and Records of Account - Maintenance and Inspection.
                   ---------------------------------------------------------
The Corporation shall keep or cause to be kept at its principal executive office
or such other place as the Board of Directors may order, adequate and correct
books and records of account.

     Section 4.    Bylaws - Maintenance and Inspection. The Corporation shall
                   -----------------------------------
keep at its principal executive office or, in the absence of such office in the
State of California, at its principal business office in that state, the
original or a copy of the Bylaws as amended to date.

     Section 5.    Annual Report to Shareholders. The annual report to the
                   -----------------------------
shareholders described in Section 1501 of the Corporations Code of the State of
California is expressly dispensed with, but nothing herein shall be interpreted
as prohibiting the Board of Directors from issuing annual or other periodic
reports to the shareholders of the Corporation as they see fit.


                                  ARTICLE IX

                                 MISCELLANEOUS
                                 -------------

     Section 1.    Checks, Drafts, Etc. All checks, drafts or other orders for
                   -------------------
payment of money, notes or other evidences of indebtedness, and any assignment
or endorsement thereof, issued in the name of or payable to the Corporation,
shall be signed or endorsed by such person or persons and in such manner as,
from time to time, shall be determined by resolution of the Board of Directors.

     Section 2.    Contracts, Etc. - How Executed. The Board of Directors,
                   ------------------------------
except as otherwise provided in these Bylaws, may authorize any officer or
officers, agent or agents, to enter into any contract or execute any instrument
in the name of and on behalf of the Corporation, and such authority may be
general or confined to specific instances; and, unless so authorized or ratified
by the Board, no officer, employee or other agent shall have any power or
authority to bind the Corporation by any contract or engagement or to pledge its
credit or to render it liable for any purpose or to any amount.

     Section 3.    Certificates of Stock. All certificates shall be signed in
                   ---------------------
the name of the Corporation by the Chairman of the Board or the President or a
vice president and by the Treasurer or an assistant treasurer or the Secretary
or an assistant secretary, certifying the number of shares and the class or
series thereof owned by the shareholder. Any or all of the signatures on a
certificate may be by facsimile signature. In case any officer, transfer agent
or registrar who has signed or whose facsimile signature has been placed upon a
certificate shall have ceased to be such officer, transfer agent or registrar
before such certificate is issued, it may be issued by the Corporation with the
same effect as if such person were an officer, transfer agent or registrar at
the date of issue.

     Section 4.    Lost Certificates. Except as provided in this section, no new
                   -----------------
certificate for shares shall be issued in lieu of an old certificate unless the
latter is surrendered to the Corporation

                                      13
<PAGE>
 
and canceled at the same time. The Board of Directors may in case any share
certificate or certificate for any other security is lost, stolen or destroyed,
authorize the issuance of a new certificate in lieu thereof, upon such terms and
conditions as the Board may require, including provision for indemnification of
the Corporation secured by a bond or other adequate security sufficient to
protect the Corporation against any claim that may be made against it, including
any expense or liability, on account of the alleged loss, theft or destruction
of such certificate or the issuance of such new certificate.

     Section 5.    Representation of Shares of Other Corporations. Any person
                   ----------------------------------------------
designated by resolution of the Board of Directors or, in the absence of such
designation, the Chairman of the Board, the President or any vice president or
the Secretary, or any other person authorized by any of the foregoing, is
authorized to vote on behalf of the Corporation any and all shares of any other
corporation or corporations, foreign or domestic, owned by the Corporation.

     Section 6.    Construction and Definitions. Unless the context otherwise
                   ----------------------------
requires, the general provisions, rules of construction and definitions
contained in the Corporations Code of the State of California shall govern the
construction of these Bylaws.

     Section 7.    Indemnification of Corporate Agents; Purchase of Liability
                   ----------------------------------------------------------
Insurance. (a) The Corporation shall, to the maximum extent permitted by the
- ---------
General Corporation Law of the State of California, and as the same may from
time to time be amended, indemnify each of its agents against expenses,
judgments, fines, settlements and other amounts actually and reasonably incurred
in connection with any proceeding to which such person was or is a party or is
threatened to be made a party arising by reason of the fact that such person is
or was an agent of the Corporation. For purposes of this Section 7, an "agent"
of the Corporation includes any person who is or was a director, officer,
employee or other agent of the Corporation, or is or was serving at the request
of the Corporation as a director, officer, employee or agent of another foreign
or domestic corporation, partnership, joint venture, trust or other enterprise,
or was a director, officer, employee or agent of a foreign or domestic
corporation which was a predecessor corporation of the Corporation or of another
enterprise at the request of such predecessor corporation; "proceeding" means
any threatened, pending or completed action or proceeding, whether civil,
criminal, administrative or investigative, and includes an action or proceeding
by or in the right of the Corporation to procure a judgment in its favor; and
"expenses" includes attorneys' fees and any expenses of establishing a right to
indemnification under this subdivision (a).

             (b)   The Corporation shall, if and to the extent the Board of
Directors so determines by resolution, purchase and maintain insurance in an
amount and on behalf of such agents of the Corporation as the Board may specify
in such resolution against any liability asserted against or incurred by the
agent in such capacity or arising out of the agent's status as such whether or
not the Corporation would have the capacity to indemnify the agent against such
liability under the provisions of this Section.

                                      14
<PAGE>
 
                                   ARTICLE X

                                  AMENDMENTS
                                  ----------

     Section 1.    Amendments. New bylaws may be adopted or these Bylaws may be
                   ----------
amended or repealed by the affirmative vote of a majority of the outstanding
shares entitled to vote. Subject to the next preceding sentence, bylaws (other
than a bylaw or amendment thereof specifying or changing a fixed number of
directors or the maximum or minimum number, or changing from a fixed to a
variable board or vice versa) may be adopted, amended or repealed by the Board
of Directors.

                                      15

<PAGE>
 
                                                                     EXHIBIT 4.1

- --------------------------------------------------------------------------------

                              GREATER BAY BANCORP



                                      TO


                           WILMINGTON TRUST COMPANY



                                    TRUSTEE


                         ____________________________



                         JUNIOR SUBORDINATED INDENTURE

                          DATED AS OF MARCH 31, 1997
<PAGE>
 
                              GREATER BAY BANCORP

     Reconciliation and tie between the Trust Indenture Act of 1939 (including
cross-references to provisions of Sections 310 to and including 317 which,
pursuant to Section 318(c) of the Trust Indenture Act of 1939, as amended by the
Trust Reform Act of 1990, are a part of and govern the Indenture whether or not
physically contained therein) and the Junior Subordinated Indenture, dated as of
March 31, 1997.
<TABLE>
<CAPTION>
 
TRUST INDENTURE                                                      
   INDENTURE
  ACT SECTION                                                        SECTION
- ---------------                                                      -------
<S>                                                               <C>
 
(S) 310 (a) (1), (2) and (5)...................................   Not Applicable
        (a) (3)................................................   Not Applicable
        (a) (4)................................................   Not Applicable
        (b)....................................................              6.8
           ....................................................             6.10
        (c)....................................................   Not Applicable
(S) 311 (a)....................................................          6.13(a)
        (b)....................................................    6.13(b b) (2)
           ....................................................       7.3(a) (2)
           ....................................................       7.3(a) (2)
(S) 312 (a)....................................................              7.1
           ....................................................           7.2(a)
        (b)....................................................           7.2(b)
        (c)....................................................           7.2(c)
(S) 313 (a)....................................................           7.3(a)
        (b)....................................................           7.3(b)
        (c)....................................................   7.3(a), 7.3(b)
        (d)....................................................           7.3(c)
(S) 314 (a) (1), (2) and (3)...................................              7.4
        (a) (4)................................................             10.5
        (b)....................................................   Not Applicable
        (c) (1)................................................              1.2
        (c) (2)................................................              1.2
        (c) (3)................................................   Not Applicable
        (d)....................................................   Not Applicable
        (e)....................................................              1.2
        (f)....................................................   Not Applicable
(S) 315 (a)....................................................           6.1(a)
        (b)....................................................              6.2
           ....................................................       7.3(a) (6)
        (c)....................................................           6.1(b)
</TABLE> 

                                      -i-
<PAGE>
 
<TABLE>
<CAPTION>
TRUST INDENTURE                                                      
   INDENTURE
  ACT SECTION                                                        SECTION
- ---------------                                                      -------
<S>                                                               <C>
 
        (d)....................................................          6.1 (c)
        (d) (1)................................................       6.1(a) (1)
        (d) (2)................................................       6.1(c) (2)
        (d) (3)................................................       6.1(c) (3)
        (e)....................................................             5.14
(S) 316 (a)....................................................              1.1
        (a) (1) (A)............................................             5.12
        (a) (1) (B)............................................             5.13
        (a) (2)................................................   Not Applicable
        (b)....................................................              5.8
        (c)....................................................           1.4(f)
(S) 317 (a) (1)................................................              5.3
        (a) (2)................................................              5.4
        (b)....................................................             10.3
(S) 318 (a)....................................................              1.7

</TABLE>
- ----------------------------
NOTE:  This reconciliation and tie shall not, for any purpose, be deemed to be a
       part of the Junior Subordinated Indenture.

                                     -ii-
<PAGE>
 
                               TABLE OF CONTENTS

                                   ARTICLE I
<TABLE>
<CAPTION>  
<S>                                                                         <C>
DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION...................    1
     Section 1.1.   Definitions...........................................    1
     Section 1.2.   Compliance Certificate and Opinions...................   11
     Section 1.3.   Forms of Documents Delivered to Trustee...............   11
     Section 1.4.   Acts of Holders.......................................   12
     Section 1.5.   Notices, Etc. to Trustee and Company..................   14
     Section 1.6.   Notice to Holders; Waiver.............................   15
     Section 1.7.   Conflict with Trust Indenture Act.....................   15
     Section 1.8.   Effect of Headings and Table of Contents..............   15
     Section 1.9.   Successors and Assigns................................   15
     Section 1.10.  Separability Clause...................................   16
     Section 1.11   Benefits of Indenture.................................   16
     Section 1.12.  Governing Law.........................................   16
     Section 1.13.  Non-Business Days.....................................   16

                                   ARTICLE II
 
SECURITY FORMS............................................................   16
     Section 2.1.   Forms Generally.......................................   16
     Section 2.2.   Form of Face of Security..............................   17
     Section 2.3.   Form of Reverse of Security...........................   21
     Section 2.4.   Additional Provisions Required in Global Security.....   24
     Section 2.5.   Form of Trustee's Certificate of Authentication.......   25

                                  ARTICLE III
 
THE SECURITIES............................................................   25
     Section 3.1.   Title and Terms.......................................   25
     Section 3.2.   Denominations.........................................   28
     Section 3.3.   Execution, Authentication, Delivery and Dating........   28
     Section 3.4.   Temporary Securities..................................   30
     Section 3.5.   Registration, Transfer and Exchange...................   30
     Section 3.6.   Mutilated, Destroyed, Lost and Stolen Securities......   32
     Section 3.7.   Payment of Interest; Interest Rights Preserved........   33
     Section 3.8.   Persons Deemed Owners.................................   34
     Section 3.9.   Cancellation..........................................   35
     Section 3.10.  Computation of Interest...............................   35
     Section 3.11.  Deferrals of Interest Payment Dates...................   35
</TABLE> 
                                      -i-
<PAGE>
 
<TABLE> 
<CAPTION> 
<S>                                                                         <C> 

     Section 3.12.  Right of Set-Off......................................   37
     Section 3.13.  Agreed Tax Treatment..................................   37
     Section 3.14.  Shortening of Stated Maturity.........................   37
     Section 3.15.  CUSIP Numbers.........................................   37

                                   ARTICLE IV
 
SATISFACTION AND DISCHARGE................................................   37
     Section 4.1.   Satisfaction and Discharge of Indenture...............   37
     Section 4.2.   Application of Trust Money............................   39

                                   ARTICLE V
 
REMEDIES..................................................................   39
     Section 5.1    Events of Default....................................... 39
     Section 5.2.   Acceleration of Maturity; Rescission and Annulment...... 40
     Section 5.3.   Collection of Indebtedness and Suits for Enforcement by 
                    Trustee................................................. 42
     Section 5.4.   Trustee May File Proofs of Claim........................ 42
     Section 5.5.   Trustee May Enforce Claim Without Possession of             
                    Securities.............................................. 43 
     Section 5.6.   Application of Money Collected.......................... 44
     Section 5.7.   Limitation on Suits..................................... 44
     Section 5.8.   Unconditional Right of Holders to Receive Principal,   
                    Premium and Interest; Direct Action by Holders of      
                    Preferred Securities.................................... 45
     Section 5.9.   Restoration of Rights and Remedies...................... 45
     Section 5.10.  Rights and Remedies Cumulative.......................... 46
     Section 5.11.  Delay or Omission Not Waiver............................ 46
     Section 5.12.  Control by Holders...................................... 46
     Section 5.13.  Waiver of Past Defaults................................. 47
     Section 5.14.  Undertaking for Costs................................... 47
     Section 5.15.  Waiver of Usury, Stay or Extension Laws................. 48

                                   ARTICLE VI
 
THE TRUSTEE...............................................................   48
     Section 6.1.   Certain Duties and Responsibilities....................  48
     Section 6.2.   Notice of Defaults.....................................  49
     Section 6.3.   Certain Rights of Trustee..............................  49
     Section 6.4.   Not Responsible for Recitals or Issuance of Securities.  50
     Section 6.5.   May Hold Securities....................................  51
</TABLE> 
                                     -ii-
<PAGE>
 
<TABLE>
<CAPTION> 
<S>                                                                         <C> 
     Section 6.6.   Money Held in Trust...................................   51
     Section 6.7.   Compensation and Reimbursement........................   51
     Section 6.8.   Disqualification; Conflicting Interests...............   52
     Section 6.9.   Corporate Trustee Required; Eligibility...............   52
     Section 6.10.  Resignation and Removal; Appointment of Successor.....   53
     Section 6.11.  Acceptance of Appointment by Successor................   54
     Section 6.12.  Merger, Conversion, Consolidation or Succession to 
                    Business..............................................   55
     Section 6.13.  Preferential Collection of Claims Against Company.....   56
     Section 6.14.  Appointment of Authenticating Agent...................   56

                                  ARTICLE VII
 
HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY.........................   58
     Section 7.1.   Company to Furnish Trustee Names and Addresses of     
                    Holders................................................  58
     Section 7.2.   Preservation of Information, Communications to Holders.  58
     Section 7.3.   Reports by Trustee.....................................  59
     Section 7.4.   Reports by Company.....................................  59

                                  ARTICLE VIII
 
CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE......................   60
     Section 8.1.   Company May Consolidate, Etc., Only on Certain Terms..   60
     Section 8.2.   Successor Corporation Substituted.....................   61

                                   ARTICLE IX
 
SUPPLEMENTAL INDENTURES...................................................   61
     Section 9.1.   Supplemental Indentures without Consent of Holders....   61
     Section 9.2.   Supplemental Indentures with Consent of Holders.......   63
     Section 9.3.   Execution of Supplemental Indentures..................   64
     Section 9.4.   Effect of Supplemental Indentures.....................   65
     Section 9.5.   Conformity with Trust Indenture Act...................   65
     Section 9.6.   Reference in Securities to Supplemental Indentures....   65

                                   ARTICLE X
 
COVENANTS.................................................................   65
     Section 10.1.  Payment of Principal, Premium and Interest............   65
     Section 10.2.  Maintenance of Office or Agency.......................   66
     Section 10.3.  Money for Security Payments to be Held in Trust.......   66
</TABLE> 
                                     -iii-
<PAGE>
 
<TABLE> 
<CAPTION> 
<S>                                                                         <C> 

     Section 10.4.  Statement as to Compliance............................   68
     Section 10.5.  Waiver of Certain Covenants...........................   68
     Section 10.6.  Additional Sums.......................................   68
     Section 10.7.  Additional Covenants..................................   69

                                   ARTICLE XI
 
REDEMPTION OF SECURITIES..................................................   70
     Section 11.1   Applicability of This Article.........................   70
     Section 11.2.  Election to Redeem; Notice to Trustee.................   70
     Section 11.3.  Selection of Securities to be Redeemed................   71
     Section 11.4.  Notice of Redemption..................................   71
     Section 11.5.  Deposit of Redemption Price...........................   72
     Section 11.6.  Payment of Securities Called for Redemption...........   72
     Section 11.7.  Right of Redemption of Securities Initially Issued to   
                    a GBB Trust...........................................   73

                                  ARTICLE XII
 
SINKING FUNDS.............................................................   73
     Section 12.1.  Applicability of Article..............................   73
     Section 12.2.  Satisfaction of Sinking Fund Payments with Securities.   74
     Section 12.3.  Redemption of Securities for Sinking Fund.............   74

                                  ARTICLE XIII
 
SUBORDINATION OF SECURITIES...............................................   76
     Section 13.1.  Securities Subordinate to Senior and Subordinated Debt   76
     Section 13.2.  Payment Over of Proceeds Upon Dissolution, Etc........   76
     Section 13.3.  Prior Payment to Senior and Subordinated Debt Upon     
                    Acceleration of Securities............................   77
     Section 13.4.  No Payment When Senior and Subordinated Debt in Default  78
     Section 13.5.  Payment Permitted If No Default.......................   79
     Section 13.6.  Subrogation to Rights of Holders of Senior and          
                    Subordinated Debt.....................................   79
     Section 13.7.  Provisions Solely to Define Relative Rights...........   80
     Section 13.8.  Trustee to Effectuate Subordination...................   80
     Section 13.9.  No Waiver of Subordination Provisions.................   81
     Section 13.10. Notice to Trustee.....................................   81
</TABLE> 
                                     -iv-
<PAGE>
 
<TABLE> 
<CAPTION> 
<S>                                                                         <C> 

     Section 13.11. Reliance on Judicial Order or Certificate of          
                    Liquidating Agent.....................................   82
     Section 13.12. Trustee Not Fiduciary for Holders of Senior and       
                    Subordinated Debt.....................................   82
     Section 13.13. Rights of Trustee as Holder of Senior and Subordinated 
                    Debt; Preservation of Trustee's Rights................   83
     Section 13.14. Article Applicable to Paying Agents...................   83
     Section 13.15. Certain Conversions or Exchanges Deemed Payment.......   83
</TABLE>
     JUNIOR SUBORDINATED INDENTURE, dated as of March 31, 1997,  between GREATER
BAY BANCORP, a California corporation (hereinafter called the "Company") having
its principal office at 2860 West Bayshore Road, Palo Alto, California 94303,
and WILMINGTON TRUST COMPANY, a Delaware banking corporation, as Trustee
(hereinafter called the "Trustee").

                            RECITALS OF THE COMPANY

     The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsecured junior
subordinated debt securities in series (hereinafter called the "Securities") of
substantially the tenor hereinafter provided, including, without limitation,
Securities issued to evidence loans made to the Company of the proceeds from the
issuance from time to time by one or more business trusts (each a "GBB Trust,"
and, collectively, the "GBB Trusts") of preferred trust interests in such Trusts
(the Preferred Securities") and common interests in such Trusts (the "Common
Securities" and, collectively with the Preferred Securities, the Trust
Securities), and to provide the terms and conditions upon which the Securities
are to be authenticated, issued and delivered.

     All things necessary to make the Securities, when executed by the Company
and authenticated and delivered hereunder and duly issued by the Company the
valid obligations of the Company, and to make this Indenture a valid agreement
of the Company, in accordance with their and its terms, have been done.

     NOW THEREFORE, THIS INDENTURE WITNESSETH:  For and in consideration of the
premises and the purchase of the Securities by the Holders thereof, it is
mutually covenanted and agreed, for the equal and proportionate benefit of all
Holders of the Securities or of any series thereof, as follows:

                                   ARTICLE I

            DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

Section 1.1.   Definitions.
<PAGE>
 
               For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

               (1)  The terms defined in this Article have the meanings assigned
to them in this Article, and include the plural as well as the singular;

               (2)  All other terms used herein which are defined in the Trust
Indenture Act, either directly or by reference therein, have the meanings
assigned to them therein;

               (3)  All accounting terms not otherwise defined herein have the
meanings assigned to them in accordance with generally accepted accounting
principles, and the term "generally accepted accounting principles" with respect
to any computation required or permitted hereunder shall mean such accounting
principles which are generally accepted at the date or time of such computation;
provided, that when two or more principles are so generally accepted, it shall
mean that set of principles consistent with those in use by the Company; and

               (4)  The words "herein," "hereof" and "hereunder" and other words
of similar import refer to this Indenture as a whole and not to any particular
Article, Section or other subdivision.

               "1940 Act" means the Investment Company Act of 1940, as amended.

               "Act" when used with respect to any Holder has the meaning
specified in Section 1.4.

               "Additional Interest" means the interest, if any, that shall
accrue on any interest on the Securities of any series the payment of which has
not been made on the applicable Interest Payment Date and which shall accrue at
the rate per annum specified or determined as specified in such Security.

               "Additional Sums" has the meaning specified in Section 10.6.

               "Additional Taxes" means the sum of any additional taxes, duties
and other governmental charges to which a GBB Trust has become subject from time
to time as a result of a Tax Event.

               "Administrative Trustee" means, in respect of any GBB Trust, each
Person identified as an "Administrative Trustee" or an "Administrative Agent" in
the related Trust Agreement, solely in such Person's capacity as Administrative
Trustee or an Administrative Agent, as the case may be, of such GBB Trust under
such Trust Agreement 

                                      -2-
<PAGE>
 
and not in such Person's individual capacity, or any successor administrative
trustee or successor administrative agent, as the case may be, appointed as
therein provided.

               "Affiliate" of any specified Person means any other Person
directly or indirectly controlling or controlled by or under direct or indirect
common control with such specified Person; provided, however, no GBB Trust to
which Securities have been issued shall be deemed to be an Affiliate of the
Company. For the purposes of this definition, "control" when used with respect
to any specified Person means the power to direct the management and policies of
such Person, directly or indirectly, whether through the ownership of voting
securities, by contract or otherwise; and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.

               "Allocable Amounts," when used with respect to any Senior and
Subordinated Debt, means all amounts due or to become due on such Senior and
Subordinated Debt less, if applicable, any amount which would have been paid to,
and retained by, the holders of such Senior and Subordinated Debt (whether as a
result of the receipt of payments by the holders of such Senior and Subordinated
Debt from the Company or any other obligor thereon or from any holders of, or
trustee in respect of, other indebtedness that is subordinate and junior in
right of payment to such Senior and Subordinated Debt pursuant to any provision
of such indebtedness for the payment over of amounts received on account of such
indebtedness to the holders of such Senior and Subordinated Debt or otherwise)
but for the fact that such Senior and Subordinated Debt is subordinate or junior
in right of payment to (or subject to a requirement that amounts received on
such Senior and Subordinated Debt be paid over to obligees on) trade accounts
payable or accrued liabilities arising in the ordinary course of business.

               "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 6.14 to act on behalf of the Trustee to authenticate
Securities of one or more series.

               "Board of Directors" means either the board of directors of the
Company or any committee of that board duly authorized to act hereunder.

               "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors, or such committee of the Board of Directors or officers
of the Company to which authority to act on behalf of the Board of Directors has
been delegated, and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

               "Business Day" means any day other than (i) a Saturday or Sunday,
(ii) a day on which banking institutions in the State of California are
authorized or required by law or executive order to remain closed or (iii) a day
on which the Corporate Trust 

                                      -3-
<PAGE>
 
Office of the Trustee, or, with respect to the Securities of a series initially
issued to a GBB Trust, the principal office of the Property Trustee under the
related Trust Agreement, is closed for business.

               "Capital Treatment Event" means the reasonable determination by
the Company that, as a result of any amendment to, or change (including any
prospective change) in, the laws (or any regulations thereunder) of the United
States or any political subdivision thereof or therein, or as a result of any
official or administrative pronouncement or action or judicial decision
interpreting or applying such laws or regulations, which amendment or change is
effective or such prospective change, pronouncement or decision is announced on
or after the date of issuance of the Preferred Securities of such GBB Trust,
there is more than an insubstantial risk of impairment of the Company's ability
to treat the Preferred Securities (or any substantial portion thereof) as "Tier
I Capital" (or the then equivalent thereof) for purposes of the capital adequacy
guidelines of the Federal Reserve, as then in effect and applicable to the
Company.

               "Commission" means the Securities and Exchange Commission, as
from time to time constituted, created under the Exchange Act, or if at any time
after the execution of this instrument such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties on such date.

               "Common Securities" has the meaning specified in the first
recital of this Indenture.

               "Common Stock" means the common stock, no par value, of the
Company.

               "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor corporation shall have become
such pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor corporation.

               "Company Request" and "Company Order" mean, respectively, the
written request or order signed in the name of the Company by the Chairman of
the Board of Directors, the Vice Chairman of the Board of Directors, its
President or a Vice President, and by its Treasurer, an Assistant Treasurer, its
Secretary or an Assistant Secretary of the Company, and delivered to the
Trustee.

               "Corporate Trust Office" means the principal office of the
Trustee at which at any particular time its corporate trust business shall be
administered.

                                      -4-
<PAGE>
 
               "Corporation" includes a corporation, association, company,
joint-stock company or business trust.

               "Debt" means, with respect to any Person, whether recourse is to
all or a portion of the assets of such Person and whether or not contingent, (i)
every obligation of such Person for money borrowed; (ii) every obligation of
such Person evidenced by bonds, debentures, notes or other similar instruments,
including obligations incurred in connection with the acquisition of property,
assets or businesses; (iii) every reimbursement obligation of such Person with
respect to letters of credit, bankers' acceptances or similar facilities issued
for the account of such Person; (iv) every obligation of such Person issued or
assumed as the deferred purchase price of property or services (but excluding
trade accounts payable or accrued liabilities arising in the ordinary course of
business); (v) every capital lease obligation of such Person; (vi) all
indebtedness of such Person whether incurred on or prior to the date of this
Indenture or thereafter incurred, for claims in respect of derivative products,
including interest rate, foreign exchange rate and commodity forward contracts,
options and swaps and similar arrangements; and (vii) every obligation of the
type referred to in clauses (i) through (vi) of another Person and all dividends
of another Person the payment of which, in either case, such Person has
guaranteed or is responsible or liable for, directly or indirectly, as obligor
or otherwise.

               "Defaulted Interest" has the meaning specified in Section 3.7.

               "Depositary" means, with respect to the Securities of any series
issuable or issued in whole or in part in the form of one or more Global
Securities, the Person designated as Depositary by the Company pursuant to
Section 3.1 with respect to such series (or any successor thereto).

               "Discount Security" means any security which provides for an
amount less than the principal amount thereof to be due and payable upon a
declaration of acceleration of the Maturity thereof pursuant to Section 5.2.

               "Distributions," with respect to the Trust Securities issued by a
GBB Trust, means amounts payable in respect of such Trust Securities as provided
in the related Trust Agreement and referred to therein as "Distributions."

               "Dollar" or "U.S. $" means the currency of the United States of
America that, as at the time of payment, is legal tender for the payment of
public and private debts.

               "Event of Default" has the meaning specified in Article V unless
otherwise specified in the supplemental indenture or the Officers' Certificate
delivered pursuant to Section 3.1 hereof creating a series of Securities.

                                      -5-
<PAGE>
 
               "Exchange Act" means the Securities Exchange Act of 1934 and any
statute successor thereto, in each case as amended from time to time.

               "Extension Period" has the meaning specified in Section 3.11.

               "Global Security" means a Security in the form prescribed in
Section 2.4 evidencing all or part of a series of Securities, issued to the
Depositary or its nominee for such series, and registered in the name of such
Depositary or its nominee.

               "GBB Guarantee" means the guarantee by the Company of
distributions on the Preferred Securities of a GBB Trust to the extent provided
in the related Guarantee Agreement.

               "GBB Trust" has the meaning specified in the first recital of
this Indenture.

               "Guarantee Agreement" means the Guarantee Agreement substantially
in the form attached hereto as Annex C, or substantially in such form as may be
specified as contemplated by Section 3.1 with respect to the Securities of any
series, in each case as amended from time to time.

               "Holder" means a Person in whose name a Security is registered in
the Securities Register.

               "Indenture" means this instrument as originally executed or as it
may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof or
one or more Officers' Certificates delivered pursuant to Section 3.1 and shall
include the terms of each particular series of Securities established as
contemplated by Section 3.1.

               "Interest Payment Date" means as to each series of Securities the
Stated Maturity of an installment of interest on such Securities.

               "Investment Company Event" means, in respect of a GBB Trust, the
receipt by a GBB Trust of an Opinion of Counsel, rendered by a law firm
experienced in such matters, to the effect that, as a result of change in law or
regulation or a change in interpretation or application of law or regulation by
any legislative body, court, governmental agency or regulatory authority, such
GBB Trust is or will be considered an "investment company" that is required to
be registered under the 1940 Act, which change becomes effective on or after the
date of original issuance of the Preferred Securities of such GBB Trust.

                                      -6-
<PAGE>
 
               "Junior Subordinated Payment" has the meaning specified in
Section 13.2.

               "Maturity" when used with respect to any Security means the date
on which the principal of such Security becomes due and payable as therein or
herein provided, whether at the Stated Maturity or by declaration of
acceleration, call for redemption or otherwise.

               "Notice of Default" means a written notice of the kind specified
in Section 5.1(3).

               "Officers' Certificate" means a certificate signed by the
Chairman of the Board of Directors, a Vice Chairman of the Board of Directors,
the President or a Vice President, and by the Treasurer, an Assistant Treasurer,
the Secretary or an Assistant Secretary of the Company, and delivered to the
Trustee.

               "Opinion of Counsel" means a written opinion of counsel, who may
be counsel for the Company, and who shall be acceptable to the Trustee.

               "Original Issue Date" means the date of issuance specified as
such in each Security.

               "Outstanding" means, when used in reference to any Securities, as
of the date of determination, all Securities theretofore authenticated and
delivered under this Indenture, except:

               (i)  Securities theretofore canceled by the Trustee or delivered
to the Trustee for cancellation;

               (ii) Securities for whose payment money in the necessary amount
has been theretofore deposited with the Trustee or any Paying Agent in trust for
the Holders of such Securities; and

               (iii)Securities in substitution for or in lieu of which other
Securities have been authenticated and delivered or which have been paid
pursuant to Section 3.6, unless proof satisfactory to the Trustee is presented
that any such Securities are held by Holders in whose hands such Securities are
valid, binding and legal obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, Securities owned
by the Company or any other obligor upon the Securities or any Affiliate of the
Company or such other obligor 

                                      -7-
<PAGE>
 
shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent or waiver, only
Securities which the Trustee knows to be so owned shall be so disregarded.
Securities so owned which have been pledged in good faith may be regarded as
Outstanding if the pledgee establishes to the satisfaction of the Trustee the
pledgee's right so to act with respect to such Securities and that the pledgee
is not the Company or any other obligor upon the Securities or any Affiliate of
the Company or such other obligor. Upon the written request of the Trustee, the
Company shall furnish to the Trustee promptly an Officers' Certificate listing
and identifying all Securities, if any, known by the Company to be owned or held
by or for the account of the Company, or any other obligor on the Securities or
any Affiliate of the Company or such obligor, and, subject to the provisions of
Section 6.1, the Trustee shall be entitled to accept such Officers' Certificate
as conclusive evidence of the facts therein set forth and of the fact that all
Securities not listed therein are Outstanding for the purpose of any such
determination.

               "Paying Agent" means the Trustee or any Person authorized by the
Company to pay) the principal of or interest on any Securities on behalf of the
Company.

               "Person" means any individual, corporation, partnership, joint
venture, trust, unincorporated organization or government or any agency or
political subdivision thereof.

               "Place of Payment" means, with respect to the Securities of any
series, the place or places where the principal of (and premium, if any) and
interest on the Securities of such series are payable pursuant to Sections 3.1
and 3.11.

               "Predecessor Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that evidenced
by such particular Security; and, for the purposes of this definition, any
security authenticated and delivered under Section 3.6 in lieu of a lost,
destroyed or stolen Security shall be deemed to evidence the same debt as the
lost, destroyed or stolen Security.

               "Preferred Securities" has the meaning specified in the first
recital of this Indenture.

               "Proceeding" has the meaning specified in Section 13.2.

               "Property Trustee" means, in respect of any GBB Trust, the
commercial bank or trust company identified as the "Property Trustee" in the
related Trust Agreement, solely in its capacity as Property Trustee of such GBB
Trust under such Trust Agreement 

                                      -8-
<PAGE>
 
and not in its individual capacity, or its successor in interest in such
capacity, or any successor property trustee appointed as therein provided.

               "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

               "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

               "Regular Record Date" for the interest payable on any Interest
Payment Date with respect to the Securities of a series means, unless otherwise
provided pursuant to Section 3.1 with respect to Securities of a series, (i) in
the case of Securities of a series represented by one or more Global Securities,
the Business Day next preceding such Interest Payment Date and (ii) in the case
of Securities of a series not represented by one or more Global Securities, the
date which is fifteen days next preceding such Interest Payment Date (whether or
not a Business Day).

               "Responsible Officer" when used with respect to the Trustee means
any officer of the Trustee assigned by the Trustee from time to time to
administer its corporate trust matters.

               "Securities" or "Security" means any debt securities or debt
security, as the case may be, authenticated and delivered under this Indenture.

               "Securities Register" and "Securities Registrar" have the
respective meanings specified in Section 3.5.

               "Senior and Subordinated Debt" means the principal of (and
premium, if any) and interest, if any (including interest accruing on or after
the filing of any petition in bankruptcy or for reorganization relating to the
Company whether or not such claim for post-petition interest is allowed in such
proceeding), on Debt of the Company, whether incurred on or prior to the date of
this Indenture or thereafter incurred, unless, in the instrument creating or
evidencing the same or pursuant to which the same is outstanding, it is provided
that such obligations are not superior in right of payment to the Securities,
provided, however, that Senior and Subordinated Debt shall be deemed to include
the 11.5% Subordinated Debenture due 2005 of the Company, and, provided further,
that Senior and Subordinated Debt shall not be deemed to include (a) any Debt of
the Company which, when incurred and without respect to any election under
Section 1111(b) of the Bankruptcy Reform Act of 1978, as amended, was without
recourse to the Company, (b) any Debt of the Company to any of its Subsidiaries,
(c) Debt to any employee of the Company, and (d) any Securities.

                                      -9-
<PAGE>
 
               "Special Record Date" for the payment of any Defaulted Interest
means a date fixed by the Trustee pursuant to Section 3.7.

               "Stated Maturity" when used with respect to any Security or any
installment of principal thereof or interest thereon means the date specified
pursuant to the terms of such Security as the date on which the principal of
such Security or such installment of interest is due and payable, in the case of
such principal, as such date may be shortened or extended as provided pursuant
to the terms of such Security and this Indenture.

               "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For purposes of this definition, "voting stock" means stock which
ordinarily has voting power for the election of directors, whether at all times
or only so long as no senior class of stock has such voting power by reason of
any contingency.

               "Tax Event" means the receipt by the Company and the GBB Trust of
an Opinion of Counsel (as defined in the relevant GBB Trust Agreement)
experienced in such matters to the effect that, as a result of any amendment to,
or change (including any announced prospective change) in, the laws (or any
regulations thereunder) of the United States or any political subdivision or
taxing authority thereof or therein, or as a result of any official
administrative pronouncement or judicial decision interpreting or applying such
laws or regulations, which amendment or change is effective or such prospective
change, pronouncement or decision is announced on or after the date of issuance
of the Preferred Securities of such GBB Trust, there is more than an
insubstantial risk that (i) such GBB Trust is, or will be within 90 days of the
date of such Opinion of Counsel, subject to United States Federal income tax
with respect to income received or accrued on the corresponding series of
Securities, (ii) interest payable by the Company on such corresponding series of
Securities is not, or within 90 days of the date of such Opinion of Counsel,
will not be, deductible by the Company, in whole or in part, for United States
Federal income tax purposes or (iii) such GBB Trust is, or will be within 90
days of the date of such Opinion of Counsel, subject to more than a de minimis
amount of other taxes, duties or other governmental charges.

               "Trust" has the meaning specified in the first recital of this
Indenture.

               "Trust Agreement" means the Trust Agreement substantially in the
form attached hereto as Annex A, as amended by the form of Amended and Restated
Trust Agreement substantially in the form attached hereto as Annex B, or
substantially in such form as may be specified as contemplated by Section 3.1
with respect to the Securities of any series, in each case as amended from time
to time.

                                     -10-
<PAGE>
 
               "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder and,
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

               "Trust Indenture Act" means the Trust Indenture Act of 1939 (15
U.S.C. (S)(S) 77aaa-77bbb), as amended and as in effect on the date as of this
Indenture, except as provided in Section 9.5.

               "Trust Securities" has the meaning specified in the first recital
of this Indenture.

               "Vice President" when used with respect to the Company, means any
duly appointed vice president, whether or not designated by a number or a word
or words added before or after the title "vice president."

Section 1.2.   Compliance Certificate and Opinions.

               Upon any application or request by the Company to the Trustee to
take any action under any provision of this Indenture, the Company shall furnish
to the Trustee an Officers' Certificate stating that all conditions precedent
(including covenants, compliance with which constitutes a condition precedent),
if any, provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent (including covenants compliance with which
constitute a condition precedent), if any, have been complied with, except that
in the case of any such application or request as to which the furnishing of
such documents is specifically required by any provision of this Indenture
relating to such particular application or request, no additional certificate or
opinion need be furnished.

               Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture (other than the
certificates provided pursuant to Section 10.5) shall include:

               (1)  a statement that each individual signing such certificate or
opinion has read such covenant or condition and the definitions herein relating
thereto;

               (2)  a brief statement as to the nature and scope of the
examination or investigation upon which the statements or opinions contained in
such certificate or opinion are based;

                                     -11-
<PAGE>
 
               (3)  a statement that, in the opinion of each such individual, he
has made such examination or investigation as is necessary to enable him to
express an informed opinion as to whether or not such covenant or condition has
been complied with; and

               (4)  a statement as to whether, in the opinion of each such
individual, such condition or covenant has been complied with.

Section 1.3.   Forms of Documents Delivered to Trustee.

               In any case where several matters are required to be certified
by, or covered by an opinion of, any specified Person, it is not necessary that
all such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

               Any certificate or opinion of an officer of the Company may be
based, insofar as it relates to legal matters, upon a certificate or opinion of,
or representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

               Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions, or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

Section 1.4.  Acts of Holders.

               (a)  Any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given to or
taken by Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent or
proxy duly appointed in writing; and, except as herein otherwise expressly
provided, such action shall become effective when such instrument or instruments
is or are delivered to the Trustee, and, where it is hereby expressly required,
to the Company. Such instrument or instruments (and the action embodied therein
and evidenced thereby) are herein sometimes referred 

                                     -12-
<PAGE>
 
to as the "Act" of the Holders signing such instrument or instruments. Proof of
execution of any such instrument or of a writing appointing any such agent shall
be sufficient for any purpose of this Indenture and (subject to Section 6.1)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section.

               (b)  The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by the certificate of any notary public or other officer authorized
by law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution is by a Person acting in other than his individual capacity, such
certificate or affidavit shall also constitute sufficient proof of his
authority.

               (c)  The fact and date of the execution by any Person of any such
instrument or writing, or the authority of the Person executing the same, may
also be proved in any other manner which the Trustee deems sufficient and in
accordance with such reasonable rules as the Trustee may determine.

               (d)  The ownership of Securities shall be proved by the
Securities Register.

               (e)  Any request, demand, authorization, direction, notice,
consent, waiver or other action by the Holder of any Security shall bind every
future Holder of the same Security and the Holder of every Security issued upon
the transfer thereof or in exchange therefor or in lieu thereof in respect of
anything done or suffered to be done by the Trustee or the Company in reliance
thereon, whether or not notation of such action is made upon such Security.

               (f)  The Company may set any day as a record date for the purpose
of determining the Holders of Outstanding Securities of any series entitled to
give, make or take any request, demand, authorization, direction, notice,
consent, waiver or other action provided or permitted by this Indenture to be
given, made or taken by Holders of Securities of such series, provided that the
Company may not set a record date for, and the provisions of this paragraph
shall not apply with respect to, the giving or making of any notice,
declaration, request or direction referred to in the next paragraph. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of the relevant series on such record date, and no other Holders,
shall be entitled to take the relevant action, whether or not such Holders
remain Holders after such record date, provided that no such action shall be
effective hereunder unless taken on or prior to the applicable Expiration Date
by Holders of the requisite principal amount of Outstanding Securities of such
series on such record date. Nothing in this paragraph shall be construed to
prevent the Company from setting a new record date for any action for which a
record date has previously been set pursuant to this paragraph (whereupon the
record date previously set 

                                     -13-
<PAGE>
 
shall automatically and with no action by any Person be canceled and of no
effect), and nothing in this paragraph shall be construed to render ineffective
any action taken by Holders of the requisite principal amount of Outstanding
Securities of the relevant series on the date such action is taken. Promptly
after any record date is set pursuant to this paragraph, the Company, at its own
expense, shall cause notice of such record date, the proposed action by Holders
and the applicable Expiration Date to be given to the Trustee in writing and to
each Holder of Securities of the relevant series in the manner set forth in
Section 1.6.

          The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to join
in the giving or making of (i) any Notice of Default, (ii) any declaration of
acceleration referred to in Section 5.2, (iii) any request to institute
proceedings referred to in Section 5.7(2) or (iv) any direction referred to in
Section 5.12, in each case with respect to Securities of such series. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of such series on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or
not such Holders remain Holders after such record date, provided that no such
action shall be effective hereunder unless taken on or prior to the applicable
Expiration Date by Holders of the requisite principal amount of Outstanding
Securities of such series on such record date. Nothing in this paragraph shall
be construed to prevent the Trustee from setting a new record date for any
action for which a record date has previously been set pursuant to this
paragraph (whereupon the record date previously set shall automatically and with
no action by any Person be canceled and of no effect), and nothing in this
paragraph shall be construed to render ineffective any action taken by Holders
of the requisite principal amount of Outstanding Securities of the relevant
series on the date such action is taken. Promptly after any record date is set
pursuant to this paragraph, the Trustee, at the Company's expense, shall cause
notice of such record date, the proposed action by Holders and the applicable
Expiration Date to be given to the Company in writing and to each Holder of
Securities of the relevant series in the manner set forth in Section 1.6.

          With respect to any record date set pursuant to this Section, the
party hereto which sets such record dates may designate any day as the
"Expiration Date" and from time to time may change the Expiration Date to any
earlier or later day, provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto in
writing, and to each Holder of Securities of the relevant series in the manner
set forth in Section 10.6, on or prior to the existing Expiration Date. If an
Expiration Date is not designated with respect to any record date set pursuant
to this Section, the party hereto which set such record date shall be deemed to
have initially designated the 180th day after such record date as the Expiration
Date with respect thereto, subject to its right to change the Expiration Date as
provided in this paragraph. 

                                     -14-
<PAGE>
 
Notwithstanding the foregoing, no Expiration Date shall be later than the 180th
day after the applicable record date.

          (g)  Without limiting the foregoing, a Holder entitled hereunder to
take any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount.

Section 1.5.   Notices, Etc. to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,
          (1)  the Trustee by any Holder, any holder of Preferred Securities or
the Company shall be sufficient for every purpose hereunder if made, given,
furnished or filed in writing to or with the Trustee at its Corporate Trust
office, or

          (2)  the Company by the Trustee, any Holder or any holder of Preferred
Securities shall be sufficient for every purpose (except as otherwise provided
in Section 5.1) hereunder if in writing and mailed, first class, postage
prepaid, to the Company, addressed to it at the address of its principal office
specified in the first paragraph of this instrument or at any other address
previously furnished in writing to the Trustee by the Company.

Section 1.6.   Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first class postage prepaid, to each Holder affected
by such event, at the address of such Holder as it appears in the Securities
Register, not later than the latest date, and not earlier than the earliest
date, prescribed for the giving of such notice.  In any case where notice to
Holders is given by mail, neither the failure to mail such notice, nor any
defect in any notice so mailed, to any particular Holder shall affect the
sufficiency of such notice with respect to other Holders.  Where this Indenture
provides for notice in any manner, such notice may be waived in writing by the
Person entitled to receive such notice, either before or after the event, and
such waiver shall be the equivalent of such notice.  Waivers of notice by
Holders shall be filed with the Trustee, but such filing shall not be a
condition precedent to the validity of any action taken in reliance upon such
waiver.

Section 1.7.   Conflict with Trust Indenture Act.

                                     -15-
<PAGE>
 
          If any provision of this Indenture limits, qualifies or conflicts with
the duties imposed by any of Sections 310 to 317, inclusive, of the Trust
Indenture Act through operation of Section 318(c) thereof, such imposed duties
shall control.

Section 1.8.   Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

Section 1.9.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.


Section 1.10.  Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

Section 1.11   Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors and
assigns, the Holders of Senior and Subordinated Debt, the Holders of the
Securities and, to the extent expressly provided in Sections 5.2, 5.8, 5.9,
5.11, 5.13, 9.1 and 9.2, the holders of Preferred Securities, any benefit or any
legal or equitable right, remedy or claim under this Indenture.

Section 1.12.  Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the laws of the State of California, provided that the
immunities and standard of care of the Trustee shall be governed by Delaware
law.

Section 1.13. Non-Business Days.

          In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day, then (notwithstanding any
other provision of this Indenture or the Securities) payment of interest or
principal (and premium, if any) need not be made on such date, but may be made
on the next succeeding Business Day (and no interest shall accrue for the period
from and after such Interest 

                                     -16-
<PAGE>
 
Payment Date, Redemption Date or Stated Maturity, as the case may be, until such
next succeeding Business Day except that, if such Business Day is in the next
succeeding calendar year, such payment shall be made on the immediately
preceding Business Day (in each case with the same force and effect as if made
on the Interest Payment Date or Redemption Date or at the Stated Maturity)).

                                   ARTICLE II

                                 SECURITY FORMS

Section 2.1.  Forms Generally.

          The Securities of each series shall be in substantially the forms set
forth in this Article, or in such other form or forms as shall be established by
or pursuant to a Board Resolution or in one or more indentures supplemental
hereto, in each case with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture and may have
such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with applicable tax
laws or the rules of any securities exchange or as may, consistently herewith,
be determined by the officers executing such securities, as evidenced by their
execution of the Securities.  If the form of Securities of any series is
established by action taken pursuant to a Board Resolution, a copy of an
appropriate record of such action shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Company Order contemplated by Section 3.3 with respect to
the authentication and delivery of such Securities.

          The Trustee's certificates of authentication shall be substantially in
the form set forth in this Article.

          The definitive Securities shall be printed, lithographed or engraved
or produced by any combination of these methods, if required by any securities
exchange on which the Securities may be listed, on a steel engraved border or
steel engraved borders or may be produced in any other manner permitted by the
rules of any securities exchange on which the Securities may be listed, all as
determined by the officers executing such Securities, as evidenced by their
execution of such securities.

Section 2.2.  Form of Face of Security.


                              GREATER BAY BANCORP

                       % JUNIOR SUBORDINATED DEBENTURE DUE
                     --

                                     -17-
<PAGE>
 
Registered                     Principal Amount:
No.                  CUSIP No.:

          Greater Bay Bancorp, a corporation organized and existing under the
laws of California (hereinafter called the "Company", which term includes any
successor corporation under the Indenture hereinafter referred to), for value
received, hereby promises to pay to           , or registered assigns, the
                                    ----------                            
principal sum of $        Dollars on              ; provided that the Company
                  -------            -------------                           
may shorten the Stated Maturity of the principal of this Security to a date not
earlier than             .  The Company further promises to pay interest on said
             ------------
principal sum from                  or from the most recent interest payment
                    ---------------
date (each such date, an "Interest Payment Date") on which interest has been
paid or duly provided for, quarterly (subject to deferral as set forth herein)
in arrears on the last day of      and      of each year commencing
                             -----    -----                         
                    at the rate of     % per annum, until the principal hereof
- ------------------                 ----                                       
shall have become due and payable, plus Additional Interest, if any, until the
principal hereof is paid or duly provided for or made available for payment and
on any overdue principal and (without duplication and to the extent that payment
of such interest is enforceable under applicable law) on any overdue installment
of interest at the rate of     % per annum, compounded quarterly.  The amount of
                           ----                                                 
interest payable for any period shall be computed on the basis of twelve 30-day
months and a 360-day year.  The amount of interest payable for any partial
period shall be computed on the basis of the number of days elapsed in a 360-day
year of twelve 30-day months.  In the event that any date on which interest is
payable on this Security is not a Business Day, then a payment of the interest
payable on such date will be made on the next succeeding day which is a Business
Day (and without any interest or other payment in respect of any such delay),
except that, if such Business Day is in the next calendar year, such payment
shall be made on the immediately preceding Business Day, in each case with the
same force and effect as if made on the date the payment was originally payable.
A "Business Day" shall mean any day other than a Saturday or Sunday a day on
which banking institutions in the State of California are authorized or required
by law or executive order to remain closed or on a day on which the Corporate
Trust Office of the Trustee, or the principal office of the Property Trustee
under the Trust Agreement (hereinafter referred to) for [NAME OF TRUST] is
closed for business.  The interest installment so payable, and punctually paid
or duly provided for, on any Interest Payment Date will, as provided in the
Indenture, be paid to the Person in whose name this Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest installment, which shall be[insert Record Date]
next preceding such Interest Payment Date.  Any such interest installment not so
punctually paid or duly provided for shall forthwith cease to be payable to the
Holder on such Regular Record Date and may either be paid to the Person in whose
name this Security (or one or more Predecessor Securities) is registered at the
close of business on a Special Record Date for the payment of such Defaulted
Interest to be fixed 

                                     -18-
<PAGE>
 
by the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than       days prior to such Special Record Date, or be paid at
                     -----
any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Securities of this series may be listed,
and upon such notice as may be required by such exchange, all as more fully
provided in said Indenture.

          [If applicable insert--So long as no Event of Default has occurred and
is continuing, the Company shall have the right at any time during the term of
this Security to defer payment of interest on this Security, at any time or from
time to time, for up to 20 consecutive quarterly interest payment periods with
respect to each deferral period (each an "Extension Period"), (during which
Extension Periods the Company shall have the right to make partial payments of
interest on any Interest Payment Date, and at the end of which the Company shall
pay all interest then accrued and unpaid (together with Additional Interest
thereon to the extent permitted by applicable law)); provided, however, that no
Extension Period shall extend beyond the Stated Maturity of the principal of
this Security; provided, further, that during any such Extension Period, the
Company shall not, and shall not permit any Subsidiary of the Company to, (i)
declare or pay any dividends or distributions on, or redeem, purchase, acquire
or make a liquidation payment with respect to, any of the Company's capital
stock (which includes common and preferred stock), or (ii) make any payment of
principal of or interest or premium, if any, on or repay, repurchase or redeem
any debt security of the Company (including Securities issued by the Company
pursuant to the Indenture other than the Securities represented by this
certificate) that ranks pari passu with or junior in interest to this Security,
or (iii) make any guarantee payments with respect to any guarantee by the
Company of the debt securities of any Subsidiaries of the Company (if such
guarantee ranks pari passu  in all respects with or junior in interest to this
Security (other than (a) dividends or distributions in capital stock of the
Company (which includes common and preferred stock), (b) any declaration of a
dividend in connection with the implementation of a stockholders' rights plan,
or the issuance of stock under any such plan in the future or the redemption or
repurchase of any such rights pursuant thereto, (c) payments under the GBB
Guarantee related to the Preferred Securities issued by [NAME OF TRUST], and (d)
purchases of Common Stock related to the issuance of Common Stock or rights
under any of the Company's benefit plans for its directors, officers or
employees or related to the issuance of common stock (or securities convertible
into or exchangeable for common stock) as consideration in an acquisition
transaction. Prior to the termination of any such Extension Period, the Company
may further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed         consecutive interest payment
                                      -------
periods or to extend beyond the Stated Maturity.  Upon the termination of any
such Extension Period and upon the payment of all amounts then due on any
Interest Payment Date, and subject to the foregoing limitation, the Company may
elect to begin a new Extension Period. No interest shall be due and payable
during an Extension Period except at the end thereof. The Company shall give the
Trustee, the Property Trustee and the Administrative Trustees of 

                                     -19-
<PAGE>
 
[NAME OF TRUST] notice of its election to begin any Extension Period at least
    Business Days prior to the earlier of (i) the date on which Distributions on
- ---
the Preferred Securities would be payable except for the election to begin such
Extension Period, or (ii) the date the Administrative Trustees are required to
give notice to the New York Stock Exchange, the Nasdaq National Market or other
applicable stock exchange or automated quotation system on which the Preferred
Securities are then listed or quoted or to holders of such Preferred Securities
of the record date or (iii) the date such Distributions are payable, but in any
event not less than       Business Days prior to such record date. The Trustee
                    -----
shall give notice of the Company's election to begin a new Extension Period to
the holders of the Preferred Securities. There is no limitation on the number of
times that the Company may elect to begin an Extension Period.]

          Payment of the principal of (and premium, if any) and interest on this
Security will be made at the office or agency of the Trustee or at the office of
such paying agent or paying agents as the Company may designate from time to
time, maintained for that purpose in the United States, in such coin or currency
of the United States of America as at the time of payment is legal tender for
payment of public and private debts; provided, however, that at the option of
the Company payment of interest may be made (i) by check mailed to the address
of the Person entitled thereto as such address shall appear in the Securities
Register or (ii) by transfer to an account maintained by the person entitled
thereto, in immediately available funds, at such place and to such account as
may be designated by the Person entitled thereto as specified in the Securities
Register.

          The indebtedness evidenced by this Security is, to the extent provided
in the Indenture, unsecured and will rank junior and subordinate and subject in
right of payments to the prior payment in full of all Senior and Subordinated
Debt, and this Security is issued subject to the provisions of the Indenture
with respect thereto.  Each Holder of this Security, by accepting the same, (a)
agrees to and shall be bound by such provisions, (b) authorizes and directs the
Trustee on his behalf to take such actions as may be necessary or appropriate to
effectuate the subordination so provided and (c) appoints the Trustee his
attorney-in-fact for any and all such purposes.  Each Holder hereof, by his
acceptance hereof, waives all notice of the acceptance of the subordination
provisions contained herein and in the Indenture by each holder of Senior and
Subordinated Debt, whether now outstanding or hereafter incurred, and waives
reliance by each such holder upon said provisions.

          Reference is hereby made to the further provisions of this Security
set forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

                                     -20-
<PAGE>
 
          Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.



          IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

                              GREATER BAY BANCORP

                              By:
                                 ----------------------------------
                              [President or Vice President]

Attest:

 
- --------------------------------------------
[Secretary or Assistant Secretary]

Section 2.3.   Form of Reverse of Security.

          This Security is one of a duly authorized issue of securities of the
Company (herein called the "Securities"), issued and to be issued in one or more
series under a Junior Subordinated Indenture, dated as of         , 1997 (herein
                                                          --------              
called the "Indenture"), between the Company and            as Trustee (herein
                                                 ----------                   
called the "Trustee", which term includes any successor trustee under the
Indenture), to which Indenture and all indentures supplemental thereto reference
is hereby made for a statement of the respective rights, limitations of rights,
duties and immunities thereunder of the Trustee, the Company and the Holders of
the Securities, and of the terms upon which the Securities are, and are to be,
authenticated and delivered.  This Security is one of the series designated on
the face hereof, limited in aggregate principal amount to $         .
                                                           --------- 

          All terms used in this Security that are defined in the Indenture and
in the Trust Agreement, dated as of               ,     , as amended (the "Trust
                                    ---------- ---  ----                        
Agreement"), 

                                     -21-
<PAGE>
 
for [insert name of trust] among Greater Bay Bancorp, as Depositor, and the
Trustees named therein, shall have the meanings assigned to them in the
Indenture or the Trust Agreement, as the case may be.

          [If applicable, insert--The Company may at any time, at its option, on
or after         , and subject to the terms and conditions of Article XI of the
         --------                                                              
Indenture], [if applicable insert--and subject to the Company having received
prior approval of the Board of Governors of the Federal Reserve System (the
"Federal Reserve") if then required under applicable capital guidelines or
policies of the Federal Reserve] redeem this Security [in whole at any time] [or
in part from time to time], without premium or penalty, at a redemption price
equal to [insert redemption price] to the Redemption Date.]

          [If applicable, insert--Upon the occurrence and during the
continuation of a Tax Event, Investment Company Event or Capital Treatment Event
in respect of a GBB Trust, the Company may, at its option, at any time within 90
days of the occurrence of such Tax Event, Investment Company Event or Capital
Treatment Event redeem this Security, [if applicable, insert--in whole but not
in part], subject to the provisions of Section 11.7 and the other provisions of
Article XI of the Indenture, at a redemption price equal to [insert redemption
price] to the Redemption Date.

          [If applicable, insert--In the event of redemption of this Security in
part only, a new Security or Securities of this series for the portion hereof
not redeemed will be issued in the name of the Holder hereof upon the
cancellation hereof.

          The Indenture contains provisions for satisfaction and discharge of
the entire indebtedness of this Security upon compliance by the Company with
certain conditions set forth in the Indenture.

          The Indenture permits, with certain exceptions as therein provided,
the Company and the Trustee at any time to enter into a supplemental indenture
or indentures for the purpose of modifying in any manner the rights and
obligations of the Company and of the Holders of the Securities, with the
consent of the Holders of not less than a majority in principal amount of the
Outstanding Securities of each series to be affected by such supplemental
indenture.  The Indenture also contains provisions permitting Holders of
specified percentages in principal amount of the Securities of each series at
the time Outstanding, on behalf of the Holders of all Securities of such series,
to waive compliance by the Company with certain provisions of the Indenture and
certain past defaults under the Indenture and their consequences.  Any such
consent or waiver by the Holder of this Security shall be conclusive and binding
upon such Holder and upon all future Holders of this Security and of any
Security issued upon the registration of transfer hereof or in exchange herefor
or in lieu hereof, whether or not notation of such consent or waiver is made
upon this Security.

                                     -22-
<PAGE>
 
          [If the Security is not a Discount Security,--As provided in and
subject to the provisions of the Indenture, if an Event of Default with respect
to the Securities of this series at the time Outstanding occurs and is
continuing, then and in every such case the Trustee or the Holders of not less
than 25% in principal amount of the Outstanding Securities of this series may
declare the principal amount of all the Securities of this series to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by Holders), provided that, in the case of the Securities of this
series issued to a GBB Trust, if upon an Event of Default, the Trustee or the
Holders of not less than 25% in principal amount of the Outstanding Securities
of this series fails to declare the principal of all the Securities of this
series to be immediately due and payable, the holders of at least 25% in
aggregate Liquidation Amount of the Preferred Securities then outstanding shall
have such right by a notice in writing to the Company and the Trustee; and upon
any such declaration the principal amount of and the accrued interest (including
any Additional Interest) on all the Securities of this series shall become
immediately due and payable, provided that the payment of principal and interest
(including any Additional Interest) on such Securities shall remain subordinated
to the extent provided in Article XIII of the Indenture.]

          [If the Security is a Discount Security,--As provided in and subject
to the provisions of the Indenture, if an Event of Default with respect to the
Securities of this series at the time Outstanding occurs and is continuing, then
and in every such case the Trustee or the Holders of not less than such portion
of the principal amount as may be specified in the terms of this series may
declare an amount of principal of the Securities of this series to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by Holders), provided that, in the case of the Securities of this
series issued to a GBB Trust, if upon an Event of Default, the Trustee or the
Holders of not less than 25% in principal amount of the Outstanding Securities
of this series fails to declare the principal of all the Securities of this
series to be immediately due and payable, the holders of at least 25% in
aggregate Liquidation Amount of the Preferred Securities then outstanding shall
have such right by a notice in writing to the Company and the Trustee.  Such
amount shall be equal to [insert formula for determining the amount].  Upon any
such declaration, such amount of the principal of and the accrued interest
(including any Additional Interest) on all the Securities of this series shall
become immediately due and payable, provided that the payment of principal and
interest (including any Additional Interest) on such Securities shall remain
subordinated to the extent provided in Article XIII of the Indenture.  Upon
payment (i) of the amount of principal so declared due and payable and (ii) of
interest on any overdue principal and overdue interest (in each case to the
extent that the payment of such interest shall be legally enforceable), all of
the Company's obligations in respect of the payment of the principal of and
interest, if any, on this Security shall terminate.]

                                     -23-
<PAGE>
 
          No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, to pay the principal of (and premium, if any) and
interest on this Security at the times, place and rate, and in the coin or
currency, herein prescribed.

          As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Security is registrable in the
Securities Register, upon surrender of this Security for registration of
transfer at the office or agency of the Company maintained under Section 10.2 of
the Indenture duly endorsed by, or accompanied by a written instrument of
transfer in form satisfactory to the Company and the Securities Registrar duly
executed by, the Holder hereof or his attorney duly authorized in writing, and
thereupon one or more new Securities of this series, of authorized denominations
and for the same aggregate principal amount, will be issued to the designated
transferee or transferees.  No service charge shall be made for any such
registration of transfer or exchange, but the Company may require payment of a
sum sufficient to cover any tax or other governmental charge payable in
connection therewith.

          Prior to due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

          The Securities of this series are issuable only in registered form
without coupons in denominations of minimum denominations of $[25] and any
integral multiples of $[25] in excess thereof.  As provided in the Indenture and
subject to certain limitations therein set forth, Securities of this series are
exchangeable for a like aggregate principal amount of Securities of such series
of a different authorized denomination, as requested by the Holder surrendering
the same.

          The Company and, by its acceptance of this Security or a beneficial
interest therein, the Holder of, and any Person that acquires a beneficial
interest in, this Security agree that for United States Federal, state and local
tax purposes it is intended that this Security constitute indebtedness.

          THE INDENTURE AND THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA WITHOUT REGARD TO CONFLICTS
OF LAWS PRINCIPLES THEREOF.

Section 2.4.   Additional Provisions Required in Global Security.

                                     -24-
<PAGE>
 
          Any Global Security issued hereunder shall, in addition to the
provisions contained in Sections 2.2 and 2.3, bear a legend in substantially the
following form:

          "THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY
OR A NOMINEE OF A DEPOSITARY.  THIS SECURITY IS EXCHANGEABLE FOR SECURITIES
REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY
IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND MAY NOT BE
TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY
OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE
DEPOSITARY."

Section 2.5.   Form of Trustee's Certificate of Authentication.

          This is one of the Securities referred to in the within mentioned
Indenture.

Dated:

                              WILMINGTON TRUST COMPANY
                              as Trustee

                              By:
                                 ---------------------------------
                                  Authorized Officer


                                  ARTICLE III

                                THE SECURITIES

Section 3.1.   Title and Terms.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series.  There shall be
established in or pursuant to a Board Resolution, and set forth in an Officers'
Certificate (such Officers' Certificate shall have the effect of a supplemental
indenture for all purposes hereunder), or established in one or more indentures
supplemental hereto, prior to the issuance of Securities of a series:

                                     -25-
<PAGE>
 
          (a)  the title of the securities of such series, which shall
distinguish the Securities of the series from all other Securities;

          (b)  the limit, if any, upon the aggregate principal amount of the
Securities of such series which may be authenticated and delivered under this
Indenture (except for Securities authenticated and delivered upon registration
of transfer of, or in exchange for, or in lieu of, other Securities of the
series pursuant to Section 3.4, 3.5, 3.6, 9.6 or 11.6 and except for any
Securities which, pursuant to Section 3.3, are deemed never to have been
authenticated and delivered hereunder); provided, however, that the authorized
aggregate principal amount of such series may be increased above such amount by
a Board Resolution to such effect;

          (c)  the Stated Maturity or Maturities on which the principal of the
Securities of such series is payable or the method of determination thereof;

          (d)  the rate or rates, if any, at which the Securities of such series
shall bear interest, if any, the rate or rates and extent to which Additional
Interest, if any, shall be payable in respect of any Securities of such series,
the Interest Payment Dates on which such interest shall be payable, the right,
pursuant to Section 3.11 or as otherwise set forth therein, of the Company to
defer or extend an Interest Payment Date, and the Regular Record Date for the
interest payable on any Interest Payment Date or the method by which any of the
foregoing shall be determined;

          (e)  the place or places where the principal of (and premium, if any)
and interest on the Securities of such series shall be payable, the place or
places where the Securities of such series may be presented for registration of
transfer or exchange, and the place or places where notices and demands to or
upon the Company in respect of the Securities of such series may be made;

          (f)  the period or periods within or the date or dates on which, if
any, the price or prices at which and the terms and conditions upon which the
Securities of such series may be redeemed, in whole or in part, at the option of
the Company;

          (g)  the obligation or the right, if any, of the Company to prepay,
repay or purchase the Securities of such series pursuant to any sinking fund,
amortization or analogous provisions, or at the option of a Holder thereof, and
the period or periods within which, the price or prices at which, the currency
or currencies (including currency unit or units) in which and the other terms
and conditions upon which Securities of the series shall be redeemed, repaid or
purchased, in whole or in part, pursuant to such obligation;

                                     -26-
<PAGE>
 
          (h)  the denominations in which any Securities of such series shall be
issuable, if other than denominations of $25 and any integral multiples of $25
in excess thereof;

          (i)  if other than Dollars, the currency or currencies (including
currency unit or units) in which the principal of (and premium, if any) and
interest, if any, on the Securities of the series shall be payable, or in which
the Securities of the series shall be denominated;

          (j)  the additions, modifications or deletions, if any, in the Events
of Default or covenants of the Company set forth herein with respect to the
Securities of such series;

          (k)  if other than the principal amount thereof, the portion of the
principal amount of Securities of such series that shall be payable upon
declaration of acceleration of the Maturity thereof;

          (l)  the additions or changes, if any, to this Indenture with respect
to the Securities of such series as shall be necessary to permit or facilitate
the issuance of the Securities of such series in bearer form, registrable or not
registrable as to principal, and with or without interest coupons;

          (m)  any index or indices used to determine the amount of payments of
principal of and premium, if any, on the Securities of such series or the manner
in which such amounts will be determined;

          (n)  whether the Securities of the series, or any portion thereof,
shall initially be issuable in the form of a temporary Global Security
representing all or such portion of the Securities of such series and provisions
for the exchange of such temporary Global Security for definitive Securities of
such series;

          (o)  if applicable, that any Securities of the series shall be
issuable in whole or in part in the form of one or more Global Securities and,
in such case, the respective Depositaries for such Global Securities, the form
of any legend or legends which shall be borne by any such Global Security in
addition to or in lieu of that set forth in Section 2.4 and any circumstances in
addition to or in lieu of those set forth in Section 3.5 in which any such
Global Security may be exchanged in whole or in part for Securities registered,
and any transfer of such Global Security in whole or in part may be registered,
in the name or names of Persons other than the Depositary for such Global
Security or a nominee thereof;

          (p)  the appointment of any Paying Agent or Agents for the Securities
of such series;

                                     -27-
<PAGE>
 
          (q)  the terms of any right to convert or exchange Securities of such
series into any other securities or property of the Company, and the additions
or changes, if any, to this Indenture with respect to the Securities of such
series to permit or facilitate such conversion or exchange;

          (r)  the form or forms of the Trust Agreement, Amended and Restated
Trust Agreement and Guarantee Agreement, if different from the forms attached
hereto as Annexes A, B and C, respectively;

          (s)  the relative degree, if any, to which the Securities of the
series shall be senior to or be subordinated to other series of Securities in
right of payment, whether such other series of Securities are Outstanding or
not; and

          (t)  any other terms of the Securities of such series (which terms
shall not be inconsistent with the provisions of this Indenture).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided herein or in
or pursuant to such Board Resolution and set forth in such Officers' Certificate
or in any such indenture supplemental hereto.

          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company and
delivered to the Trustee at or prior to the delivery of the Officers'
Certificate setting forth the terms of the series.

          The Securities shall be subordinated in right of payment to Senior and
Subordinated Debt as provided in Article XIII.

Section 3.2.  Denominations.

          The Securities of each series shall be in registered form without
coupons and shall be issuable in minimum denominations of $25 and integral
multiples of $25 in excess thereof, unless otherwise specified as contemplated
by Section 3.1.

Section 3.3.  Execution, Authentication, Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
President or one of its Vice Presidents under its corporate seal reproduced or
impressed thereon and attested by its Secretary or one of its Assistant
Secretaries. The signature of any of these officers on the Securities may be
manual or facsimile.

                                     -28-
<PAGE>
 
          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities. At any time and from time to
time after the execution and delivery of this Indenture, the Company may deliver
Securities of any series executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and
delivery of such Securities, and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities. If the form or terms of
the Securities of the series have been established by or pursuant to one or more
Board Resolutions as permitted by Sections 2.1 and 3.1, in authenticating such
Securities, and accepting the additional responsibilities under this Indenture
in relation to such Securities, the Trustee shall be entitled to receive, and
(subject to Section 6.1) shall be fully protected in relying upon, an Opinion of
Counsel stating,

          (1)  if the form of such Securities has been established by or
pursuant to Board Resolution as permitted by Section 2.1, that such form has
been established in conformity with the provisions of this Indenture;

          (2)  if the terms of such Securities have been established by or
pursuant to Board Resolution as permitted by Section 3.1, that such terms have
been established in conformity with the provisions of this Indenture; and

          (3)  that such Securities, when authenticated and delivered by the
Trustee and issued by the Company in the manner and subject to any conditions
specified in such Opinion of Counsel, will constitute valid and legally binding
obligations of the Company enforceable in accordance with their terms, subject
to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles.

          If such form or terms have been so established, the Trustee shall not
be required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

          Notwithstanding the provisions of Section 3.1 and of the preceding
paragraph, if all Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Officers' Certificate otherwise
required pursuant to Section 3.1 or the Company Order and Opinion of Counsel
otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such 

                                     -29-
<PAGE>
 
documents are delivered at or prior to the authentication upon original issuance
of the first Security of such series to be issued.

          Each Security shall be dated the date of its authentication.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose, unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by the manual signature of one of its authorized
officers, and such certificate upon any Security shall be conclusive evidence,
and the only evidence, that such Security has been duly authenticated and
delivered hereunder. Notwithstanding the foregoing, if any Security shall have
been authenticated and delivered hereunder but never issued and sold by the
Company, and the Company shall deliver such Security to the Trustee for
cancellation as provided in Section 3.9, for all purposes of this Indenture such
Security shall be deemed never to have been authenticated and delivered
hereunder and shall never be entitled to the benefits of this Indenture.

Section 3.4.   Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any denomination, substantially of the
tenor of the definitive Securities of such series in lieu of which they are
issued and with such appropriate insertions, omissions, substitutions and other
variations as the officers executing such Securities may determine, as evidenced
by their execution of such Securities.

          If temporary Securities of any series are issued, the Company will
cause definitive Securities of such series to be prepared without unreasonable
delay.  After the preparation of definitive Securities, the temporary Securities
shall be exchangeable for definitive Securities upon surrender of the temporary
Securities at the office or agency of the Company designated for that purpose
without charge to the Holder.  Upon surrender for cancellation of any one or
more temporary Securities, the Company shall execute and the Trustee shall
authenticate and deliver in exchange therefor one or more definitive Securities
of the same series of authorized denominations having the same Original Issue
Date and Stated Maturity and having the same terms as such temporary Securities.
Until so exchanged, the temporary Securities of any series shall in all respects
be entitled to the same benefits under this Indenture as definitive Securities
of such series.

Section 3.5.   Registration, Transfer and Exchange.

                                     -30-
<PAGE>
 
          The Company shall cause to be kept at the Corporate Trust Office of
the Trustee a register in which, subject to such reasonable regulations as it
may prescribe, the Company shall provide for the registration of Securities and
of transfers of Securities.  Such register is herein sometimes referred to as
the "Securities Register." The Trustee is hereby appointed "Securities
Registrar" for the purpose of registering Securities and transfers of Securities
as herein provided.

          Upon surrender for registration of transfer of any Security at the
office or agency of the Company designated for that purpose the Company shall
execute, and the Trustee shall authenticate and deliver, in the name of the
designated transferee or transferees, one or more new Securities of the same
series of any authorized denominations, of a like aggregate principal amount, of
the same Original Issue Date and Stated Maturity and having the same terms.

          At the option of the Holder, Securities may be exchanged for other
Securities of the same series of any authorized denominations, of a like
aggregate principal amount, of the same Original Issue Date and Stated Maturity
and having the same terms, upon surrender of the Securities to be exchanged at
such office or agency.  Whenever any securities are so surrendered for exchange,
the Company shall execute, and the Trustee shall authenticate and deliver, the
Securities which the Holder making the exchange is entitled to receive.

          All Securities issued upon any transfer or exchange of Securities
shall be the valid obligations of the Company, evidencing the same debt, and
entitled to the same benefits under this Indenture, as the Securities
surrendered upon such transfer or exchange.

          Every Security presented or surrendered for transfer or exchange shall
(if so required by the Company or the Securities Registrar) be duly endorsed, or
be accompanied by a written instrument of transfer in form satisfactory to the
Company and the Securities Registrar, duly executed by the Holder thereof or his
attorney duly authorized in writing.

          No service charge shall be made to a Holder for any transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Securities.

                                     -31-
<PAGE>
 
          The provisions of Clauses (1), (2), (3) and (4) below shall apply only
to Global Securities:

          (1) Each Global Security authenticated under this Indenture shall be
registered in the name of the Depositary designated for such Global Security or
a nominee thereof and delivered to such Depositary or a nominee thereof or
custodian therefor, and each such Global Security shall constitute a single
Security for all purposes of this Indenture.

          (2) Notwithstanding any other provision in this Indenture, no Global
Security may be exchanged in whole or in part for Securities registered, and no
transfer of a Global Security in whole or in part may be registered, in the name
of any Person other than the Depositary for such Global Security or a nominee
thereof unless (A) such Depositary (i) has notified the Company that it is
unwilling or unable to continue as Depositary for such Global Security or (ii)
has ceased to be a clearing agency registered under the Exchange Act at a time
when the Depositary is required to be so registered to act as depositary, in
each case unless the Company has approved a successor Depositary within 90 days,
(B) there shall have occurred and be continuing an Event of Default with respect
to such Global Security, (C) the Company in its sole discretion determines that
such Global Security will be so exchangeable or transferable or (D) there shall
exist such circumstances, if any, in addition to or in lieu of the foregoing as
have been specified for this purpose as contemplated by Section 3.1.

          (3) Subject to Clause (2) above, any exchange of a Global Security for
other Securities may be made in whole or in part, and all Securities issued in
exchange for a Global Security or any portion thereof shall be registered in
such names as the Depositary for such Global Security shall direct.

          (4) Every Security authenticated and delivered upon registration of
transfer of, or in exchange for or in lieu of, a Global Security or any portion
thereof, whether pursuant to this Section, Section 3.4, 3.6, 9.6 or 11.6 or
otherwise, shall be authenticated and delivered in the form of, and shall be, a
Global Security, unless such Security is registered in the name of a Person
other than the Depositary for such Global Security or a nominee thereof.

          Neither the Company nor the Trustee shall be required, pursuant to the
provisions of this Section, (a) to issue, transfer or exchange any Security of
any series during a period beginning at the opening of business 15 days before
the day of selection for redemption of Securities pursuant to Article XI and
ending at the close of business on the day of mailing of notice of redemption or
(b) to transfer or exchange any Security so selected for redemption in whole or
in part, except, in the case of any Security to be redeemed in part, any portion
thereof not to be redeemed.

                                     -32-
<PAGE>
 
Section 3.6.  Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee together with
such security or indemnity as may be required by the Company or the Trustee to
save each of them harmless, the Company shall execute and the Trustee shall
authenticate and deliver in exchange therefor a new Security of the same issue
and series of like tenor and principal amount, having the same Original Issue
Date and Stated Maturity, and bearing a number not contemporaneously
outstanding.

          If there shall be delivered to the Company and to the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security, and (ii) such security or indemnity as may be required by them to save
each of them harmless, then, in the absence of notice to the Company or the
Trustee that such Security has been acquired by a bona fide purchaser, the
Company shall execute and upon its request the Trustee shall authenticate and
deliver, in lieu of any such destroyed, lost or stolen Security, a new Security
of the same issue and series of like tenor and principal amount, having the same
Original Issue Date and Stated Maturity as such destroyed, lost or stolen
Security, and bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Security, pay such Security.

          Upon the issuance of any new Security under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

          Every new Security issued pursuant to this Section in lieu of any
destroyed, lost or stolen Security shall constitute an original additional
contractual obligation of the Company, whether or not the destroyed, lost or
stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities duly issued hereunder.

          The provisions of this Section 3.6 are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities.

Section 3.7.  Payment of Interest; Interest Rights Preserved.

                                      -33-
<PAGE>
 
          Interest on any Security of any series which is payable, and is
punctually paid or duly provided for, on any Interest Payment Date, shall be
paid to the Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest in respect of Securities of such series, except that, unless
otherwise provided in the Securities of such series, interest payable on the
Stated Maturity of the principal of a Security shall be paid to the Person to
whom principal is paid.  The initial payment of interest on any Security of any
series which is issued between a Regular Record Date and the related Interest
Payment Date shall be payable as provided in such Security or in the Board
Resolution pursuant to Section 3.1 with respect to the related series of
Securities.

          Any interest on any Security which is payable, but is not timely paid
or duly provided for, on any Interest Payment Date for Securities of such series
(herein called "Defaulted Interest"), shall forthwith cease to be payable to the
registered Holder on the relevant Regular Record Date by virtue of having been
such Holder, and such Defaulted Interest may be paid by the Company, at its
election in each case, as provided in Clause (1) or (2) below:

          (1)  The Company may elect to make payment of any Defaulted Interest
to the Persons in whose names the Securities of such series in respect of which
interest is in default (or their respective Predecessor Securities) are
registered at the close of business on a Special Record Date for the payment of
such Defaulted Interest, which shall be fixed in the following manner. The
Company shall notify the Trustee in writing of the amount of Defaulted Interest
proposed to be paid on each Security and the date of the proposed payment, and
at the same time the Company shall deposit with the Trustee an amount of money
equal to the aggregate amount proposed to be paid in respect of such Defaulted
Interest or shall make arrangements satisfactory to the Trustee for such deposit
prior to the date of the proposed payment, such money when deposited to be held
in trust for the benefit of the Persons entitled to such Defaulted Interest as
in this Clause provided. Thereupon, the Trustee shall fix a Special Record Date
for the payment of such Defaulted Interest which shall be not more than 15 days
and not less than 10 days prior to the date of the proposed payment and not less
than 10 days after the receipt by the Trustee of the notice of the proposed
payment. The Trustee shall promptly notify the Company of such Special Record
Date and, in the name and at the expense of the Company, shall cause notice of
the proposed payment of such Defaulted Interest and the Special Record Date
therefor to be mailed, first class, postage prepaid, to each Holder of a
Security of such series at the address of such Holder as it appears in the
Securities Register not less than 10 days prior to such Special Record Date. The
Trustee may, in its discretion, in the name and at the expense of the Company,
cause a similar notice to be published at least once in a newspaper, customarily
published in the English language on each Business Day and of general
circulation in the state of California, but such publication shall not be a
condition 

                                     -34-
<PAGE>
 
precedent to the establishment of such Special Record Date. Notice of the
proposed payment of such Defaulted Interest and the Special Record Date therefor
having been mailed as aforesaid, such Defaulted Interest shall be paid to the
Persons in whose names the Securities of such series (or their respective
Predecessor Securities) are registered on such Special Record Date and shall no
longer be payable pursuant to the following Clause (2).

          (2)  The Company may make payment of any Defaulted Interest in any
other lawful manner not inconsistent with the requirements of any securities
exchange on which the Securities of the series in respect of which interest is
in default may be listed and, upon such notice as may be required by such
exchange (or by the Trustee if the Securities are not listed), if, after notice
given by the Company to the Trustee of the proposed payment pursuant to this
Clause, such payment shall be deemed practicable by the Trustee.

          Subject to the foregoing provisions of this Section 3.7, each Security
delivered under this Indenture upon transfer of or in exchange for or in lieu of
any other Security shall carry the rights to interest accrued and unpaid, and to
accrue, which were carried by such other Security.

Section 3.8.   Persons Deemed Owners.

          The Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name any Security is registered as the owner of
such Security for the purpose of receiving payment of principal of and (subject
to Section 3.7) any interest on such Security and for all other purposes
whatsoever, whether or not such Security be overdue, and neither the Company,
the Trustee nor any agent of the Company or the Trustee shall be affected by
notice to the contrary.

Section 3.9.   Cancellation.

          All Securities surrendered for payment, redemption, transfer or
exchange shall, if surrendered to any Person other than the Trustee, be
delivered to the Trustee, and any such Securities and Securities surrendered
directly to the Trustee for any such purpose shall be promptly canceled by it.
The Company may at any time deliver to the Trustee for cancellation any
Securities previously authenticated and delivered hereunder which the Company
may have acquired in any manner whatsoever, and all Securities so delivered
shall be promptly canceled by the Trustee.  No Securities shall be authenticated
in lieu of or in exchange for any Securities canceled as provided in this
Section, except as expressly permitted by this Indenture.  All canceled
Securities shall be destroyed by the Trustee and the Trustee shall deliver to
the Company a certificate of such destruction.

Section 3.10.  Computation of Interest.

                                     -35-
<PAGE>
 
          Except as otherwise specified as contemplated by Section 3.1 for
Securities of any series, interest on the Securities of each series for any
period shall be computed on the basis of a 360-day year of twelve 30-day months
and interest on the Securities of each series for any partial period shall be
computed on the basis of the number of days elapsed in a 360-day year of twelve
30-day months.

Section 3.11.  Deferrals of Interest Payment Dates.

          If specified as contemplated by Section 2.1 or Section 3.1 with
respect to the Securities of a particular series, so long as no Event of Default
has occurred and is continuing, the Company shall have the right, at any time
during the term of such series, from time to time to defer the payment of
interest on such Securities for such period or periods as may be specified as
contemplated by Section 3.1 (each, an "Extension Period") during which Extension
Periods the Company shall have the right to make partial payments of interest on
any Interest Payment Date. No Extension Period shall end on a date other than an
Interest Payment Date. At the end of any such Extension Period the Company shall
pay all interest then accrued and unpaid on the Securities (together with
Additional Interest thereon, if any, at the rate specified for the Securities of
such series to the extent permitted by applicable law); provided, however, that
no Extension Period shall extend beyond the Stated Maturity of the principal of
the Securities of such series; provided, further, that during any such Extension
Period, the Company shall not, and shall not permit any Subsidiary to, (i)
declare or pay any dividends or distributions on, or redeem, purchase, acquire
or make a liquidation payment with respect to, any of the Company's capital
stock (which includes common and preferred stock), or (ii) make any payment of
principal of or interest or premium, if any, on or repay, repurchase or redeem
any debt securities of the Company (including Securities other than the
Securities of such series) that ranks pari passu in all respects with or junior
in interest to the Securities of such series or make any guarantee payments with
respect to any guarantee by the Company of the debt securities of any Subsidiary
of the Company if such guarantee rank pari passu in all respects with or junior
in interest to the securities of such series (other than (a) dividends or
distributions in capital stock of the Company (which includes common and
preferred stock), (b) any declaration of a dividend in connection with the
implementation of a stockholders' rights plan, or the redemption or repurchase
of any such rights pursuant thereto, (c) payments under the GBB Guarantee
related to the Preferred Securities issued by the GBB Trust holding Securities
of such series, and (d) purchases of Common Stock related to the issuance of
Common Stock or rights under any of the Company's benefit plans for its
directors, officers or employees). Prior to the termination of any such
Extension Period, the Company may further extend such Extension Period, provided
that such extension does not cause such Extension Period to extend beyond the
Stated Maturity of the principal of such Securities. Upon termination of any
Extension Period and upon the payment of all accrued and unpaid interest and any
Additional Interest then due on any Interest Payment Date, the Company may elect
to begin a new Extension Period, subject 

                                     -36-
<PAGE>
 
to the above requirements. No interest shall be due and payable during an
Extension Period, except at the end thereof. The Company shall give the Trustee,
the Property Trustee and the Administrative Trustees of the GBB Trust holding
Securities of such series notice of its election of any Extension Period (or an
extension thereof) at least one Business Day prior to the earlier of (i) the
next succeeding date on which Distributions on the Preferred Securities of such
GBB Trust would be payable except for the election to begin or extend such
Extension Period or (ii) the date the Administrative Trustees are required to
give notice to the New York Stock Exchange, the Nasdaq National Market or other
applicable stock exchange or automated quotation system on which the Preferred
Securities are then listed or quoted or to holders of such Preferred Securities
of the record date or (iii) the date such Distributions are payable, but in any
event not less than one Business Day prior to such record date. The Trustee
shall give notice of the Company's election to begin a new Extension Period to
the holders of the Junior Subordinated Debentures. There is no limitation on the
number of times that the Company may elect to begin an Extension Period.

          The Trustee shall promptly give notice of the Company's election to
begin any such Extension Period to the Holders of the Outstanding Securities of
such series.



Section 3.12.  Right of Set-Off.

          With respect to the Securities of a series issued to a GBB Trust,
notwithstanding anything to the contrary in the Indenture, the Company shall
have the right to set-off any payment it is otherwise required to make
thereunder in respect of any such Security to the extent the Company has
theretofore made, or is concurrently on the date of such payment making, a
payment under the Guarantee Agreement relating to such Security or under Section
5.8 of the Indenture.

Section 3.13.  Agreed Tax Treatment.

          Each Security issued hereunder shall provide that the Company and, by
its acceptance of a Security or a beneficial interest therein, the Holder of,
and any Person that acquires a beneficial interest in, such Security agree that
for United States Federal, state and local tax purposes it is intended that such
Security constitute indebtedness.

Section 3.14.    Shortening of Stated Maturity.

                                     -37-
<PAGE>
 
          If specified as contemplated by Section 2.1 or Section 3.1 with
respect to the Securities of a particular series, the Company shall have the
right to shorten the Stated Maturity of the principal of the Securities of such
series at any time to any date not earlier than the first date on which the
Company has the right to redeem the Securities of such series.

Section 3.15.  CUSIP Numbers.

          The Company in issuing the Securities may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in notices
of redemption as a convenience to Holders; provided that any such notice may
state that no representation is made as to the correctness of such numbers
either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be affected
by any defect in or omission of such numbers.

                                  ARTICLE IV

                          SATISFACTION AND DISCHARGE

Section 4.1.   Satisfaction and Discharge of Indenture.

          This Indenture shall, upon Company Request, cease to be of further
effect (except as to any surviving rights of registration of transfer or
exchange of Securities herein expressly provided for and as otherwise provided
in this Section 4.1) and the Trustee, on demand of and at the expense of the
Company, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture, when

          (1) either

          (A) all Securities theretofore authenticated and delivered (other than
(i) Securities which have been destroyed, lost or stolen and which have been
replaced or paid as provided in Section 3.6 and (ii) Securities for whose
payment money has theretofore been deposited in trust or segregated and held in
trust by the Company and thereafter repaid to the Company or discharged from
such trust, as provided in Section 10.3) have been delivered to the Trustee for
cancellation; or

          (B) all such Securities not theretofore delivered to the Trustee for
cancellation

               (i)       have become due and payable, or

                                     -38-
<PAGE>
 
               (ii)      will become due and payable at their Stated Maturity
          within one year of the date of deposit, or

               (iii)     are to be called for redemption within one year under
          arrangements satisfactory to the Trustee for the giving of notice of
          redemption by the Trustee in the name, and at the expense, of the
          Company,

and the Company, in the case of Clause (B) (i), (ii) or (iii) above, has
deposited or caused to be deposited with the Trustee as trust funds in trust for
such purpose an amount in the currency or currencies in which the Securities of
such series are payable sufficient to pay and discharge the entire indebtedness
on such Securities not theretofore delivered to the Trustee for cancellation,
for principal (and premium, if any) and interest (including any Additional
Interest) to the date of such deposit (in the case of Securities which have
become due and payable) or to the Stated Maturity or Redemption Date, as the
case may be;

          (2) the Company has paid or caused to be paid all other sums payable
hereunder by the Company; and

          (3) the Company has delivered to the Trustee an Officers' Certificate
and an Opinion of Counsel each stating that all conditions precedent herein
provided for relating to the satisfaction and discharge of this Indenture have
been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 6.7, the obligations of
the Trustee to any Authenticating Agent under Section 6.14 and, if money shall
have been deposited with the Trustee pursuant to subclause (B) of clause (1) of
this Section, the obligations of the Trustee under Section 4.2 and the last
paragraph of Section 10.3 shall survive.

Section 4.2.   Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 10.3, all
money deposited with the Trustee pursuant to Section 4.1 shall be held in trust
and applied by the Trustee, in accordance with the provisions of the Securities
and this Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest for the payment of which such money or obligations have been
deposited with or received by the Trustee.

                                   ARTICLE V

                                   REMEDIES

                                     -39-
<PAGE>
 
Section 5.1    Events of Default.

          "Event of Default", wherever used herein with respect to the
Securities of any series, means any one of the following events (whatever the
reason for such Event of Default and whether it shall be voluntary or
involuntary or be effected by operation of law or pursuant to any judgment,
decree or order of any court or any order, rule or regulation of any
administrative or governmental body):

          (1)  default in the payment of any interest upon any Security of that
series, including any Additional Interest in respect thereof, when it becomes
due and payable, and continuance of such default for a period of 30 days
(subject to the deferral of any due date in the case of an Extension Period); or

          (2)  default in the payment of the principal of (or premium, if any,
on) any Security of that series at its Maturity; or

          (3)  default in the performance, or breach, in any material respect,
of any covenant or warranty of the Company in this Indenture (other than a
covenant or warranty a default in the performance of which or the breach of
which is elsewhere in this Section 5.1 specifically dealt with), and continuance
of such default or breach for a period of 60 days after there has been given, by
registered or certified mail, to the Company by the Trustee or to the Company
and the Trustee by the Holders of at least 25% in principal amount of the
Outstanding Securities of that series a written notice specifying such default
or breach and requiring it to be remedied; or

          (4)  the entry of a decree or order by a court having jurisdiction in
the premises adjudging the Company a bankrupt or insolvent, or approving as
properly filed a petition seeking reorganization, arrangement, adjustment or
composition of or in respect of the Company under any applicable Federal or
State bankruptcy, insolvency, reorganization or other similar law, or appointing
a receiver, liquidator, assignee, trustee, sequestrator (or other similar
official) of the Company or of any substantial part of its property or ordering
the winding up or liquidation of its affairs, and the continuance of any such
decree or order unstayed and in effect for a period of 60 consecutive days; or

          (5)  the institution by the Company of proceedings to be adjudicated a
bankrupt or insolvent, or the consent by it to the institution of bankruptcy or
insolvency proceedings against it, or the filing by it of a petition or answer
or consent seeking reorganization or relief under any applicable Federal or
State bankruptcy, insolvency, reorganization or other similar law, or the
consent by it to the filing of any such petition or to the appointment of a
receiver, liquidator, assignee, trustee, sequestrator (or other similar
official) of the Company or of any substantial part of its property, or the
making by it of an assignment for the benefit for creditors, or the admission by
it in writing of its 

                                     -40-
<PAGE>
 
inability to pay its debts generally as they become due and its willingness to
be adjudicated a bankrupt, or the taking of corporate action by the Company in
furtherance of any such action; or

          (6)  any other Event of Default provided with respect to Securities of
that series.

Section 5.2.   Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default (other than an Event of Default specified in
Section 5.1(4) or 5.1(5)) with respect to Securities of any series at the time
Outstanding occurs and is continuing, then and in every such case the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount (or, if the
Securities of that series are Discount Securities, such portion of the principal
amount as may be specified in the terms of that series) of all the Securities of
that series to be due and payable immediately, by a notice in writing to the
Company (and to the Trustee if given by Holders), provided that, in the case of
the Securities of a series issued to a GBB Trust, if, upon an Event of Default,
the Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of that series fail to declare the principal of all the
Securities of that series to be immediately due and payable, the holders of at
least 25% in aggregate liquidation amount of the corresponding series of
Preferred Securities then outstanding shall have such right by a notice in
writing to the Company and the Trustee; and upon any such declaration such
principal amount (or specified portion thereof) of and the accrued interest
(including any Additional Interest) on all the Securities of such series shall
become immediately due and payable. Payment of principal and interest (including
any Additional Interest) on such Securities shall remain subordinated to the
extent provided in Article XIII notwithstanding that such amount shall become
immediately due and payable as herein provided. If an Event of Default specified
in Section 5.1(4) or 5.1(5) with respect to Securities of any series at the time
Outstanding occurs, the principal amount of all the Securities of that series
(or, if the Securities of that series are Discount Securities, such portion of
the principal amount of such Securities as may be specified by the terms of that
series) shall automatically, and without any declaration or other action on the
part of the Trustee or any Holder, become immediately due and payable.

          At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if:

                                     -41-
<PAGE>
 
          (1)  the Company has paid or deposited with the Trustee a sum
sufficient to pay:

          (A)  all overdue installments of interest (including any Additional
Interest) on all Securities of that series,

          (B)  the principal of (and premium, if any, on) any Securities of that
series which have become due otherwise than by such declaration of acceleration
and interest thereon at the rate borne by the Securities, and

          (C)  all sums paid or advanced by the Trustee hereunder and the
reasonable compensation, expenses, disbursements and advances of the Trustee,
its agents and counsel; and

          (2)  all Events of Default with respect to Securities of that series,
other than the non-payment of the principal of Securities of that series which
has become due solely by such acceleration, have been cured or waived as
provided in Section 5.13.

          In the case of Securities of a series issued to a GBB Trust, the
holders of a majority in aggregate Liquidation Amount (as defined in the Trust
Agreement under which such GBB Trust is formed) of the related series of
Preferred Securities issued by such GBB Trust shall also have the right to
rescind and annul such declaration and its consequences by written notice to the
Company and the Trustee subject to the satisfaction of the conditions set forth
in Clauses (1) and (2) above of this Section 5.2.

          No such rescission shall affect any subsequent default or impair any
right consequent thereon.

Section 5.3.   Collection of Indebtedness and Suits for Enforcement by Trustee.

          The Company covenants that if:

          (1)  default is made in the payment of any installment of interest
(including any Additional Interest) on any Security when such interest becomes
due and payable and such default continues for a period of 30 days, or

          (2)  default is made in the payment of the principal of (and premium,
if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to the Trustee, for the
benefit of the Holders of such Securities, the whole amount then due and payable
on such Securities for principal, including any sinking fund payment or
analogous obligations (and premium, 
                                     -42-
<PAGE>
 
if any) and interest (including any Additional Interest); and, in addition
thereto, all amounts owing the Trustee under Section 6.7.

          If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, and may
prosecute such proceeding to judgment or final decree, and may enforce the same
against the Company or any other obligor upon the Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon the Securities, wherever
situated.

          If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate judicial proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

Section 5.4.   Trustee May File Proofs of Claim.

          In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors,

          (a)  the Trustee (irrespective of whether the principal of the
Securities of any series shall then be due and payable as therein expressed or
by declaration or otherwise and irrespective of whether the Trustee shall have
made any demand on the Company for the payment of overdue principal (and
premium, if any) or interest (including any Additional Interest)) shall be
entitled and empowered, by intervention in such proceeding or otherwise,

               (i)  to file and prove a claim for the whole amount of principal
(and premium, if any) and interest (including any Additional Interest) owing and
unpaid in respect to the Securities and to file such other papers or documents
as may be necessary or advisable and to take any and all actions as are
authorized under the Trust Indenture Act in order to have the claims of the
Holders and any predecessor to the Trustee under Section 6.7 allowed in any such
judicial proceedings; and

               (ii) in particular, the Trustee shall be authorized to collect
and receive any moneys or other property payable or deliverable on any such
claims and to distribute the same in accordance with Section 5.6; and

                                     -43-
<PAGE>
 
          (b)  any custodian, receiver, assignee, trustee, liquidator,
sequestrator (or other similar official) in any such judicial proceeding is
hereby authorized by each Holder to make such payments to the Trustee for
distribution in accordance with Section 5.6, and in the event that the Trustee
shall consent to the making of such payments directly to the Holders, to pay to
the Trustee any amount due to it and any predecessor Trustee under Section 6.7.

          Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof, or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceeding; provided, however,
that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official and be a member of a creditors' or
other similar committee.

Section 5.5.   Trustee May Enforce Claim Without Possession of Securities.

          All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision for the payment of all the amounts owing the Trustee and any
predecessor Trustee under Section 6.7, its agents and counsel, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

Section 5.6.   Application of Money Collected.

          Any money or property collected or to be applied by the Trustee with
respect to a series of Securities pursuant to this Article shall be applied in
the following order, at the date or dates fixed by the Trustee and, in case of
the distribution of such money or property on account of principal (or premium,
if any) or interest (including any Additional Interest), upon presentation of
the Securities and the notation thereon of the payment if only partially paid
and upon surrender thereof if fully paid:

          FIRST:  To the payment of all amounts due the Trustee and any
predecessor Trustee under Section 6.7;

          SECOND:  Subject to Article XIII, to the payment of the amounts then
due and unpaid upon such series of Securities for principal (and premium, if
any) and interest (including any Additional Interest), in respect of which or
for the benefit of which such money has been collected, ratably, without
preference or priority of any kind, according 

                                     -44-
<PAGE>
 
to the amounts due and payable on such series of Securities for principal (and
premium, if any) and interest (including any Additional Interest), respectively;
and

          THIRD:  The balance, if any, to the Person or Persons entitled
thereto.

Section 5.7.   Limitation on Suits.

          No Holder of any Securities of any series shall have any right to
institute any proceeding, judicial or otherwise, with respect to this Indenture
or for the appointment of a receiver, assignee, trustee, liquidator,
sequestrator (or other similar official) or for any other remedy hereunder,
unless:

          (1)  such Holder has previously given written notice to the Trustee of
a continuing Event of Default with respect to the Securities of that series;

          (2)  the Holders of not less than 25% in principal amount of the
Outstanding Securities of that series shall have made written request to the
Trustee to institute proceedings in respect of such Event of Default in its own
name as Trustee hereunder;

          (3)  such Holder or Holders have offered to the Trustee reasonable
indemnity against the costs, expenses and liabilities to be incurred in
compliance with such request:

          (4)  the Trustee for 60 days after its receipt of such notice, request
and offer of indemnity has failed to institute any such proceeding; and

          (5)  no direction inconsistent with such written request has been
given to the Trustee during such 60-day period by the Holders of a majority in
principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing itself of, any
provision of this Indenture to affect, disturb or prejudice the rights of any
other Holders of Securities, or to obtain or to seek to obtain priority or
preference over any other of such Holders or to enforce any right under this
Indenture, except in the manner herein provided and for the equal and ratable
benefit of all such Holders.

Section 5.8.   Unconditional Right of Holders to Receive Principal, Premium and
               Interest; Direct Action by Holders of Preferred Securities.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right which is absolute and unconditional to receive
payment of the 

                                     -45-
<PAGE>
 
principal of (and premium, if any) and (subject to Section 3.7) interest
(including any Additional Interest) on such Security on the respective Stated
Maturities expressed in such Security (or, in the case of redemption, on the
Redemption Date) and to institute suit for the enforcement of any such payment,
and such right shall not be impaired without the consent of such Holder. In the
case of Securities of a series issued to a GBB Trust, any holder of the
corresponding series of Preferred Securities issued by such GBB Trust shall have
the right, upon the occurrence of an Event of Default described in Section
5.1(1) or 5.1(2), to institute a suit directly against the Company for
enforcement of payment to such holder of principal of (premium, if any) and
(subject to Section 3.7) interest (including any Additional Interest) on the
Securities having a principal amount equal to the aggregate Liquidation Amount
(as defined in the Trust Agreement under which such GBB Trust is formed) of such
Preferred Securities of the corresponding series held by such holder.

Section 5.9.   Restoration of Rights and Remedies.

          If the Trustee, any Holder or any holder of Preferred Securities has
instituted any proceeding to enforce any right or remedy under this Indenture
and such proceeding has been discontinued or abandoned for any reason, or has
been determined adversely to the Trustee, such Holder or such holder of
Preferred Securities, then and in every such case the Company, the Trustee, the
Holders and such holder of Preferred Securities shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder, and thereafter all rights and remedies of the
Trustee, the Holders and the holders of Preferred Securities shall continue as
though no such proceeding had been instituted.

Section 5.10.  Rights and Remedies Cumulative.

          Except as otherwise provided in the last paragraph of Section 3.6, no
right or remedy herein conferred upon or reserved to the Trustee or to the
Holders is intended to be exclusive of any other right or remedy, and every
right and remedy shall, to the extent permitted by law, be cumulative and in
addition to every other right and remedy given hereunder or now or hereafter
existing at law or in equity or otherwise.  The assertion or employment of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

Section 5.11.  Delay or Omission Not Waiver.

          No delay or omission of the Trustee, any Holder of any Security or any
holder of any Preferred Security to exercise any right or remedy accruing upon
any Event of Default shall impair any such right or remedy or constitute a
waiver of any such Event of Default or an acquiescence therein.

                                      -46-
<PAGE>
 
          Every right and remedy given by this Article or by law to the Trustee
or to the Holders and the right and remedy given to the holders of Preferred
Securities by Section 5.8 may be exercised from time to time, and as often as
may be deemed expedient, by the Trustee, the Holders or the holders of Preferred
Securities, as the case may be.

Section 5.12.  Control by Holders.

          The Holders of a majority in principal amount of the Outstanding
Securities of any series shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred on the Trustee, with respect to the
Securities of such series, provided that:

          (1)  such direction shall not be in conflict with any rule of law or
with this Indenture,

          (2) the Trustee may take any other action deemed proper by the Trustee
which is not inconsistent with such direction, and

          (3)  subject to the provisions of Section 6.1, the Trustee shall have
the right to decline to follow such direction if a Responsible Officer or
Officers of the Trustee shall, in good faith, determine that the proceeding so
directed would be unjustly prejudicial to the Holders not joining in any such
direction or would involve the Trustee in personal liability.

Section 5.13.  Waiver of Past Defaults.

          The Holders of not less than a majority in principal amount of the
Outstanding Securities of any series and, in the case of any Securities of a
series issued to a GBB Trust, the holders of Preferred Securities issued by such
GBB Trust may waive any past default hereunder and its consequences with respect
to such series except a default:

          (1)  in the payment of the principal of (or premium, if any) or
interest (including any Additional Interest) on any Security of such series, or

          (2)  in respect of a covenant or provision hereof which under Article
IX cannot be modified or amended without the consent of the Holder of each
Outstanding Security of such series affected.

          Any such waiver shall be deemed to be on behalf of the Holders of all
the Securities of such series or, in the case of a waiver by holders of
Preferred Securities issued by such GBB Trust, by all holders of Preferred
Securities issued by such GBB Trust.

                                     -47-
<PAGE>
 
          Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

Section 5.14.  Undertaking for Costs.

          All parties to this Indenture agree, and each Holder of any Security
by his acceptance thereof shall be deemed to have agreed, that any court may in
its discretion require, in any suit for the enforcement of any right or remedy
under this Indenture, or in any suit against the Trustee for any action taken or
omitted by it as Trustee, the filing by any party litigant in such suit of an
undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the
provisions of this Section shall not apply to any suit instituted by the
Trustee, to any suit instituted by any Holder, or group of Holders, holding in
the aggregate more than 10% in principal amount of the Outstanding Securities of
any series, or to any suit instituted by any Holder for the enforcement of the
payment of the principal of (or premium, if any) or interest (including any
Additional Interest) on any Security on or after the respective Stated
Maturities expressed in such Security.

Section 5.15.  Waiver of Usury, Stay or Extension Laws.

          The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever claim
or take the benefit or advantage of, any usury, stay or extension law wherever
enacted, now or at any time hereafter in force, which may affect the covenants
or the performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such
law, and covenants that it will not hinder, delay or impede the execution of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

                                  ARTICLE VI

                                  THE TRUSTEE

Section 6.1.   Certain Duties and Responsibilities.

          (a)  Except during the continuance of an Event of Default;

                                     -48-
<PAGE>
 
               (1)  the Trustee undertakes to perform such duties and only such
duties as are specifically set forth in this Indenture, and no implied covenants
or obligations shall be read into this Indenture against the Trustee; and

               (2)  in the absence of bad faith on its part, the Trustee may
conclusively rely, as to the truth of the statements and the correctness of the
opinions expressed therein, upon certificates or opinions furnished to the
Trustee and conforming to the requirements of this Indenture; but in the case of
any such certificates or opinions which by any provisions hereof are
specifically required to be furnished to the Trustee, the Trustee shall be under
a duty to examine the same to determine whether or not they conform to the
requirements of this Indenture.

          (b)  In case an Event of Default has occurred and is continuing,
the Trustee shall exercise such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in their exercise, as a
prudent person would exercise or use under the circumstances in the conduct of
his own affairs.

          (c)  No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act, or its own willful misconduct except that

               (1)  this Subsection shall not be construed to limit the effect
of Subsection (a) of this Section;

               (2)  the Trustee shall not be liable for any error of judgment
made in good faith by a Responsible Officer, unless it shall be proved that the
Trustee was negligent in ascertaining the pertinent facts; and

               (3)  the Trustee shall not be liable with respect to any action
taken or omitted to be taken by it in good faith in accordance with the
direction of Holders pursuant to Section 5.12 relating to the time, method and
place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred upon the Trustee, under this Indenture
with respect to the Securities of such series.

          (d)  No provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder, or in the exercise of any of its
rights or powers, if there shall be reasonable grounds for believing that
repayment of such funds or adequate indemnity against such risk or liability is
not reasonably assured to it.

                                     -49-
<PAGE>
 
          (e)  Whether or not therein expressly so provided, every provision of
this Indenture relating to the conduct or affecting the liability of or
affording protection to the Trustee shall be subject to the provisions of this
Section 6.1.

Section 6.2.   Notice of Defaults.

          Within 90 days after actual knowledge by a Responsible Officer of the
Trustee of the occurrence of any default hereunder with respect to the
Securities of any series, the Trustee shall transmit by mail to all Holders of
Securities of such series, as their names and addresses appear in the Securities
Register, notice of such default, unless such default shall have been cured or
waived; provided, however, that, except in the case of a default in the payment
of the principal of (or premium, if any) or interest (including any Additional
Interest) on any Security of such series, the Trustee shall be protected in
withholding such notice if and so long as the board of directors, the executive
committee or a trust committee of directors and/or Responsible Officers of the
Trustee in good faith determines that the withholding of such notice is in the
interests of the Holders of Securities of such series; and provided, further,
that, in the case of any default of the character specified in Section 5.1(3),
no such notice to Holders of Securities of such series shall be given until at
least 30 days after the occurrence thereof.  For the purpose of this Section,
the term "default" means any event which is, or after notice or lapse of time or
both would become, an Event of Default with respect to Securities of such
series.

Section 6.3.   Certain Rights of Trustee.

          Subject to the provisions of Section 6.1:

          (a)  the Trustee may rely and shall be protected in acting or
refraining from acting upon any resolution, certificate, statement, instrument,
opinion, report, notice, request, direction, consent, order, bond, debenture,
Security or other paper or document believed by it to be genuine and to have
been signed or presented by the proper party or parties;

          (b)  any request or direction of the Company mentioned herein shall be
sufficiently evidenced by a Company Request or Company Order and any resolution
of the Board of Directors may be sufficiently evidenced by a Board Resolution;

          (c)  whenever in the administration of this Indenture the Trustee
shall deem it desirable that a matter be proved or established prior to taking,
suffering or omitting any action hereunder, the Trustee (unless other evidence
be herein specifically prescribed) may, in the absence of bad faith on its part,
rely upon an Officers' Certificate;

                                     -50-
<PAGE>
 
          (d)  the Trustee may consult with counsel and the advice of such
counsel or any Opinion of Counsel shall be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder
in good faith and in reliance thereon;

          (e)  the Trustee shall be under no obligation to exercise any of the
rights or powers vested in it by this Indenture at the request or direction of
any of the Holders pursuant to this Indenture, unless such Holders shall have
offered to the Trustee reasonable security or indemnity against the costs,
expenses and liabilities which might be incurred by it in compliance with such
request or direction;

          (f)  the Trustee shall not be bound to make any investigation into the
facts or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, direction, consent, order, bond, indenture,
Security or other paper or document, but the Trustee in its discretion may make
such inquiry or investigation into such facts or matters as it may see fit, and,
if the Trustee shall determine to make such inquiry or investigation, it shall
be entitled to examine the books, records and premises of the Company,
personally or by agent or attorney; and

          (g)  the Trustee may execute any of the trusts or powers hereunder or
perform any duties hereunder either directly or by or through agents or
attorneys and the Trustee shall not be responsible for any misconduct or
negligence on the part of any agent or attorney appointed with due care by it
hereunder.

Section 6.4.   Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and neither the Trustee nor any Authenticating Agent assumes any
responsibility for their correctness.  The Trustee makes no representations as
to the validity or sufficiency of this Indenture or of the Securities.  Neither
the Trustee nor any Authenticating Agent shall be accountable for the use or
application by the Company of the Securities or the proceeds thereof.

Section 6.5.   May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any
Securities Registrar or any other agent of the Company, in its individual or any
other capacity, may become the owner or pledgee of Securities and, subject to
Sections 6.8 and 6.13, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Securities Registrar or such other agent.

Section 6.6.   Money Held in Trust.

                                     -51-
<PAGE>
 
          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law.  The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.

Section 6.7.   Compensation and Reimbursement.

The Company agrees

          (1)  to pay to the Trustee from time to time compensation for all
services rendered by it hereunder in such amounts as the Company and the Trustee
shall agree from time to time (which compensation shall not be limited by any
provision of law in regard to the compensation of a trustee of an express
trust);

          (2)  to reimburse the Trustee upon its request for all reasonable
expenses, disbursements and advances incurred or made by the Trustee in
accordance with any provision of this Indenture (including the reasonable
compensation and the expenses and disbursements of its agents and counsel),
except any such expense, disbursement or advance as may be attributable to its
negligence or bad faith; and

          (3)  to indemnify the Trustee for, and to hold it harmless against,
any loss, liability or expense (including the reasonable compensation and the
expenses and disbursements of its agents and counsel) incurred without
negligence or bad faith, arising out of or in connection with the acceptance or
administration of this trust or the performance of its duties hereunder,
including the costs and expenses of defending itself against any claim or
liability in connection with the exercise or performance of any of its powers or
duties hereunder. This indemnification shall survive the termination of this
Agreement.

          To secure the Company's payment obligations in this Section 6.7, the
Company and the Holders agree that the Trustee shall have a lien prior to the
Securities on all money or property held or collected by the Trustee.  Such lien
shall survive the satisfaction and discharge of this Indenture.

          When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 5.1(4) or (5) occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under the Bankruptcy Reform Act of 1978 or any successor statute.

Section 6.8.   Disqualification; Conflicting Interests.

                                     -52-
<PAGE>
 
          The Trustee for the Securities of any series issued hereunder shall be
subject to the provisions of Section 310(b) of the Trust Indenture Act.  Nothing
herein shall prevent the Trustee from filing with the Commission the application
referred to in the second to last paragraph of said Section 301(b).

Section 6.9.   Corporate Trustee Required; Eligibility.

There shall at all times be a Trustee hereunder which shall be

          (a)  a corporation organized and doing business under the laws of the
United States of America or of any State or Territory or the District of
Columbia, authorized under such laws to exercise corporate trust powers and
subject to supervision or examination by Federal, State, Territorial or District
of Columbia authority, or

          (b)  a corporation or other Person organized and doing business under
the laws of a foreign government that is permitted to act as Trustee pursuant to
a rule, regulation or order of the Commission, authorized under such laws to
exercise corporate trust powers, and subject to supervision or examination by
authority of such foreign government or a political subdivision thereof
substantially equivalent to supervision or examination applicable to United
States institutional trustees,

in either case having a combined capital and surplus of at least $50,000,000,
subject to supervision or examination by Federal or State authority.  If such
corporation publishes reports of condition at least annually, pursuant to law or
to the requirements of the aforesaid supervising or examining authority, then,
for the purposes of this Section 6.9, the combined capital and surplus of such
corporation shall be deemed to be its combined capital and surplus as set forth
in its most recent report of condition so published.  If at any time the Trustee
shall cease to be eligible in accordance with the provisions of this Section
6.9, it shall resign immediately in the manner and with the effect hereinafter
specified in this Article VI.  Neither the Company nor any Person directly or
indirectly controlling, controlled by or under common control with the Company
shall serve as Trustee for the Securities of any series issued hereunder.

Section 6.10.  Resignation and Removal; Appointment of Successor.

          (a)  No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article VI shall become effective until the
acceptance of appointment by the successor Trustee under Section 6.11.

          (b)  The Trustee may resign at any time with respect to the Securities
of one or more series by giving written notice thereof to the Company.  If an
instrument of 

                                     -53-
<PAGE>
 
acceptance by a successor Trustee shall not have been delivered to the Trustee
within 30 days after the giving of such notice of resignation, the resigning
Trustee may petition any court of competent jurisdiction for the appointment of
a successor Trustee with respect to the Securities of such series.

          (c)  The Trustee may be removed at any time with respect to the
Securities of any series by Act of the Holders of a majority in principal amount
of the Outstanding Securities of such series, delivered to the Trustee and to
the Company.

          (d)  If at any time:

          (1)  the Trustee shall fail to comply with Section 6.8 after written
request therefor by the Company or by any Holder who has been a bona fide Holder
of a Security for at least six months, or

          (2)  the Trustee shall cease to be eligible under Section 6.9 and
shall fail to resign after written request therefor by the Company or by any
such Holder, or

          (3)  the Trustee shall become incapable of acting or shall be adjudged
a bankrupt or insolvent or a receiver of the Trustee or of its property shall be
appointed or any public officer shall take charge or control of the Trustee or
of its property or affairs for the purpose of rehabilitation, conservation or
liquidation,

then, in any such case, (i) the Company, acting pursuant to the authority of a
Board Resolution, may remove the Trustee with respect to all Securities, or (ii)
subject to Section 5.14, any Holder who has been a bona fide Holder of a
Security for at least six months may, on behalf of himself and all others
similarly situated, petition any court of competent jurisdiction for the removal
of the Trustee with respect to all Securities and the appointment of a successor
Trustee or Trustees.
          (e)  If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause with
respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee with respect to the
Securities of that or those series.  If, within one year after such resignation,
removal or incapability, or the occurrence of such vacancy, a successor Trustee
with respect to the Securities of any series shall be appointed by Act of the
Holders of a majority in principal amount of the Outstanding Securities of such
series delivered to the Company and the retiring Trustee, the successor Trustee
so appointed shall, forthwith upon its acceptance of such appointment, become
the successor Trustee with respect to the Securities of such series and
supersede the successor Trustee appointed by the Company.  If no successor
Trustee with respect to the Securities of any series shall have been so
appointed by the Company or the Holders and accepted appointment in the manner
hereinafter provided, any Holder who has been a bona fide 

                                     -54-
<PAGE>
 
Holder of a Security for at least six months may, subject to Section 5.14, on
behalf of himself and all others similarly situated, petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to the Securities of such series.

          (f)  The Company shall give notice of each resignation and each
removal of the Trustee with respect to the Securities of any series and each
appointment of a successor Trustee with respect to the Securities of any series
by mailing written notice of such event by first-class mail, postage prepaid, to
the Holders of Securities of such series as their names and addresses appear in
the Securities Register. Each notice shall include the name of the successor
Trustee with respect to the Securities of such series and the address of its
Corporate Trust Office.

Section 6.11.  Acceptance of Appointment by Successor.

          (a)  In case of the appointment hereunder of a successor Trustee with
respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor Trustee, such retiring Trustee shall, upon
payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all the rights, powers and trusts of the retiring Trustee and
shall duly assign, transfer and deliver to such successor Trustee all property
and money held by such retiring Trustee hereunder.

          (b)  In case of the appointment hereunder of a successor Trustee with
respect to the Securities of one or more (but not all) series, the Company, the
retiring Trustee and each successor Trustee with respect to the Securities of
one or more series shall execute and deliver an indenture supplemental hereto
wherein each successor Trustee shall accept such appointment and which (1) shall
contain such provisions as shall be necessary or desirable to transfer and
confirm to, and to vest in, each successor Trustee all the rights, powers,
trusts and duties of the retiring Trustee with respect to the Securities of that
or those series to which the appointment of such successor Trustee relates, (2)
if the retiring Trustee is not retiring with respect to all Securities, shall
contain such provisions as shall be deemed necessary or desirable to confirm
that all the rights, powers, trusts and duties of the retiring Trustee with
respect to the Securities of that or those series as to which the retiring
Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the provisions of this Indenture as shall be
necessary to provide for or facilitate the administration of the trusts
hereunder by more than one Trustee, it being understood that nothing herein or
in such supplemental indenture shall constitute such Trustees co-trustees of the
same trust and that each such Trustee shall be 

                                     -55-
<PAGE>
 
trustee of a trust or trusts hereunder separate and apart from any trust or
trusts hereunder administered by any other such Trustee and upon the execution
and delivery of such supplemental indenture the resignation or removal of the
retiring Trustee shall become effective to the extent provided therein and each
such successor Trustee, without any further act, deed or conveyance, shall
become vested with all the rights, powers, trusts, and duties of the retiring
Trustee with respect to the Securities of that or those series to which the
appointment of such successor Trustee relates; but, on request of the Company or
any successor Trustee, such retiring Trustee shall duly assign, transfer and
deliver to such successor Trustee all property and money held by such retiring
Trustee hereunder with respect to the Securities of that or those series to
which the appointment of such successor Trustee relates.

          (c)  Upon request of any such successor Trustee, the Company shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Trustee all rights, powers and trusts referred to
in paragraph (a) or (b) of this Section 6.11, as the case may be.

          (d)  No successor Trustee shall accept its appointment unless at the
time of such acceptance such successor Trustee shall be qualified and eligible
under this Article VI.

Section 6.12.  Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all of the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder,
provided such corporation shall be otherwise qualified and eligible under this
Article VI, without the execution or filing of any paper or any further act on
the part of any of the parties hereto.  In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated, and in case any
Securities shall not have been authenticated, any successor to the Trustee may
authenticate such Securities either in the name of any predecessor Trustee or in
the name of such successor Trustee, and in all cases the certificate of
authentication shall have the full force which it is provided anywhere in the
Securities or in this Indenture that the certificate of the Trustee shall have.

Section 6.13.  Preferential Collection of Claims Against Company.

                                     -56-
<PAGE>
 
          If and when the Trustee shall be or become a creditor of the Company
(or any other obligor upon the Securities), the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims against
the Company (or any such other obligor).

Section 6.14.  Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents with respect
to one or more series of Securities which shall be authorized to act on behalf
of the Trustee to authenticate Securities of such series issued upon original
issue and upon exchange, registration of transfer or partial redemption thereof
or pursuant to Section 3.6, and Securities so authenticated shall be entitled to
the benefits of this Indenture and shall be valid and obligatory for all
purposes as if authenticated by the Trustee hereunder.  Wherever reference is
made in this Indenture to the authentication and delivery of Securities by the
Trustee or the Trustee's certificate of authentication, such reference shall be
deemed to include authentication and delivery on behalf of the Trustee by an
Authenticating Agent.  Each Authenticating Agent shall be acceptable to the
Company and shall at all times be a corporation organized and doing business
under the laws of the United States of America, or of any State or Territory or
the District of Columbia, authorized under such laws to act as Authenticating
Agent, having a combined capital and surplus of not less than $50,000,000 and
subject to supervision or examination by Federal or State authority.  If such
Authenticating Agent publishes reports of condition at least annually, pursuant
to law or to the requirements of said supervising or examining authority, then
for the purposes of this Section 6.14 the combined capital and surplus of such
Authenticating Agent shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published.  If at any time
an Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section 6.14, such Authenticating Agent shall resign
immediately in the manner and with the effect specified in this Section 6.14.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to all or substantially all of
the corporate trust business of an Authenticating Agent shall be the successor
Authenticating Agent hereunder, provided such corporation shall be otherwise
eligible under this Section, without the execution or filing of any paper or any
further act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company.  The Trustee may at any time
terminate the 

                                     -57-
<PAGE>
 
agency of an Authenticating Agent by giving written notice thereof to such
Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section 6.14, the Trustee may appoint a successor
Authenticating Agent which shall be acceptable to the Company and shall give
notice of such appointment in the manner provided in Section 1.6 to all Holders
of Securities of the series with respect to which such Authenticating Agent will
serve. Any successor Authenticating Agent upon acceptance of its appointment
hereunder shall become vested with all the rights, powers and duties of its
predecessor hereunder, with like effect as if originally named as an
Authenticating Agent. No successor Authenticating Agent shall be appointed
unless eligible under the provision of this Section 6.14.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section 6.14, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 6.7.

          If an appointment with respect to one or more series is made pursuant
to this Section 6.14, the Securities of such series may have endorsed thereon,
in addition to the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:

          This is one of the Securities referred to in the within mentioned
Indenture.

Dated:

                              WILMINGTON RUST COMPANY
                              As Trustee

                              By:
                                 ------------------------------
                                    As Authenticating Agent

                              By:
                                 ------------------------------
                                    Authorized Officer



                                  ARTICLE VII

               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

Section 7.1.   Company to Furnish Trustee Names and Addresses of Holders.

                                     -58-
<PAGE>
 
          The Company will furnish or cause to be furnished to the Trustee:

          (a)  semi-annually, not more than 15 days after January 15 and July 15
in each year, a list, in such form as the Trustee may reasonably require, of the
names and addresses of the Holders as of January 1 and July 1 of such year, and

          (b)  at such other times as the Trustee may request in writing, within
30 days after the receipt by the Company of any such request, a list of similar
form and content as of a date not more than 15 days prior to the time such list
is furnished,

excluding from any such list names and addresses received by the Trustee in its
capacity as Securities Registrar.

Section 7.2.   Preservation of Information, Communications to Holders.

          (a)  The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 7.1 and the names and
addresses of Holders received by the Trustee in its capacity as Securities
Registrar.  The Trustee may destroy any list furnished to it as provided in
Section 7.1 upon receipt of a new list so furnished.

          (b)  The rights of Holders to communicate with other Holders with
respect to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided in the
Trust Indenture Act.

          (c)  Every Holder of Securities, by receiving and holding the same,
agrees with the Company and the Trustee that neither the Company nor the Trustee
nor any agent of either of them shall be held accountable by reason of the
disclosure of information as to the names and addresses of the Holders made
pursuant to the Trust Indenture Act.

Section 7.3.   Reports by Trustee.

          (a)  The Trustee shall transmit to Holders such reports concerning the
Trustee and its actions under this Indenture as may be required pursuant to the
Trust Indenture Act, at the times and in the manner provided pursuant thereto.

          (b)  Reports so required to be transmitted at stated intervals of not
more than 12 months shall be transmitted no later than July 15 in each calendar
year, commencing with the first July 15 after the first issuance of Securities
under this Indenture.

          (c)  A copy of each such report shall, at the time of such
transmission to Holders, be filed by the Trustee with each stock exchange upon
which any Securities are

                                     -59-
<PAGE>
 
listed and also with the Commission. The Company will notify the Trustee when
any Securities are listed on any stock exchange.

Section 7.4.   Reports by Company.

          The Company shall file with the Trustee and with the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at the
times and in the manner provided in the Trust Indenture Act; provided that any
such information, documents or reports required to be filed with the Commission
pursuant to Section 13 or Section 15(d) of the Exchange Act shall be filed with
the Trustee within 15 days after the same is required to be filed with the
Commission.  Notwithstanding that the Company may not be required to remain
subject to the reporting requirements of Section 13 or 15(d) of the Exchange
Act, the Company shall continue to file with the Commission and provide the
Trustee with the annual reports and the information, documents and other reports
which are specified in Sections 13 and 15(d) of the Exchange Act.  The Company
also shall comply with the other provisions of Trust Indenture Act Section
314(a).

                                  ARTICLE VIII

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

Section 8.1.   Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, and no Person shall consolidate with or merge into the
Company or convey, transfer or lease its properties and assets substantially as
an entirety to the Company, unless:

          (1)  in case the Company shall consolidate with or merge into another
Person or convey, transfer or lease its properties and assets substantially as
an entirety to any Person, the corporation formed by such consolidation or into
which the Company is merged or the Person which acquires by conveyance or
transfer, or which leases, the properties and assets of the Company
substantially as an entirety shall be a corporation, partnership or trust
organized and existing under the laws of the United States of America or any
State or the District of Columbia, and shall expressly assume, by an indenture
supplemental hereto, executed and delivered to the Trustee, in form satisfactory
to the Trustee, the due and punctual payment of the principal of (and premium,
if any) and interest (including any Additional Interest) on all the Securities
and the performance of every covenant of this Indenture on the part of the
Company to be performed or observed;

                                     -60-
<PAGE>
 
          (2)  immediately after giving effect to such transaction, no Event of
Default, and no event which, after notice or lapse of time, or both, would
become an Event of Default, shall have happened and be continuing;

          (3)  in the case of the Securities of a series issued to a GBB Trust,
such consolidation, merger, conveyance, transfer or lease is permitted under the
related Trust Agreement and related GBB Guarantee and does not give rise to any
breach or violation of the related Trust Agreement or related GBB Guarantee; and

          (4)  the Company has delivered to the Trustee an Officers' Certificate
and an Opinion of Counsel, each stating that such consolidation, merger,
conveyance, transfer or lease and any such supplemental indenture comply with
this Article and that all conditions precedent herein provided for relating to
such transaction have been complied with; and the Trustee, subject to Section
6.1, may rely upon such Officers' Certificate and Opinion of Counsel as
conclusive evidence that such transaction complies with this Section 8.1.

Section 8.2.   Successor Corporation Substituted.

          Upon any consolidation or merger by the Company with or into any other
Person, or any conveyance, transfer or lease by the Company of its properties
and assets substantially as an entirety to any Person in accordance with Section
8.1, the successor corporation formed by such consolidation or into which the
Company is merged or to which such conveyance, transfer or lease is made shall
succeed to, and be substituted for, and may exercise every right and power of,
the Company under this Indenture with the same effect as if such successor
Person had been named as the Company herein; and in the event of any such
conveyance, transfer or lease the Company shall be discharged from all
obligations and covenants under the Indenture and the Securities and may be
dissolved and liquidated.

          Such successor Person may cause to be signed, and may issue either in
its own name or in the name of the Company, any or all of the Securities
issuable hereunder which theretofore shall not have been signed by the Company
and delivered to the Trustee; and, upon the order of such successor Person
instead of the Company and subject to all the terms, conditions and limitations
in this Indenture prescribed, the Trustee shall authenticate and shall deliver
any Securities which previously shall have been signed and delivered by the
officers of the Company to the Trustee for authentication pursuant to such
provisions and any Securities which such successor Person thereafter shall cause
to be signed and delivered to the Trustee on its behalf for the purpose pursuant
to such provisions.  All the Securities so issued shall in all respects have the
same legal rank and benefit under this Indenture as the Securities theretofore
or thereafter issued in accordance 

                                     -61-
<PAGE>
 
with the terms of this Indenture as though all of such Securities had been
issued at the date of the execution hereof.

          In case of any such consolidation, merger, sale, conveyance or lease,
such changes in phraseology and form may be made in the Securities thereafter to
be issued as may be appropriate.

                                   ARTICLE IX

                            SUPPLEMENTAL INDENTURES

Section 9.1.   Supplemental Indentures without Consent of Holders.

          Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, provided, however, that the form and terms of Securities of any series
may be established by a Board Resolution, as set forth in the Officers'
Certificate delivered to the Trustee pursuant to Section 3.1, without entering
into a supplemental indenture for all purposes hereunder, for any of the
following purposes:

          (1)  to evidence the succession of another Person to the Company, and
the assumption by any such successor of the covenants of the Company herein and
in the Securities contained; or

          (2)  to convey, transfer, assign, mortgage or pledge any property to
or with the Trustee or to surrender any right or power herein conferred upon the
Company; or

          (3)  to establish the form or terms of Securities of any series as
permitted by Sections 2.1 or 3.1; or

          (4)  to add to the covenants of the Company for the benefit of the
Holders of all or any series of Securities (and if such covenants are to be for
the benefit of less than all series of Securities, stating that such covenants
are expressly being included solely for the benefit of such series) or to
surrender any right or power herein conferred upon the Company; or

          (5)  to add any additional Events of Default for the benefit of the
Holders of all or any series of Securities (and if such additional Events of
Default are to be for the benefit of less than all series of Securities, stating
that such additional Events of Default are expressly being included solely for
the benefit of such series); or

                                     -62-
<PAGE>
 
          (6)  to change or eliminate any of the provisions of this Indenture,
provided that any such change or elimination shall become effective only when
there is no Security Outstanding of any series created prior to the execution of
such supplemental indenture which is entitled to the benefit of such provision;
or

          (7)  to cure any ambiguity, to correct or supplement any provision
herein which may be defective or inconsistent with any other provision herein,
or to make any other provisions with respect to matters or questions arising
under this Indenture, provided that such action pursuant to this clause (7)
shall not adversely affect the interest of the Holders of Securities of any
series in any material respect or, in the case of the Securities of a series
issued to a GBB Trust and for so long as any of the corresponding series of
Preferred Securities issued by such GBB Trust shall remain outstanding, the
holders of such Preferred Securities; or

          (8)  to evidence and provide for the acceptance of appointment
hereunder by a successor Trustee with respect to the Securities of one or more
series and to add to or change any of the provisions of this Indenture as shall
be necessary to provide for or facilitate the administration of the trusts
hereunder by more than one Trustee, pursuant to the requirements of Section
6.11(b); or

          (9)  to comply with the requirements of the Commission in order to
effect or maintain the qualification of this Indenture under the Trust Indenture
Act.

Section 9.2.   Supplemental Indentures with Consent of Holders.

          With the consent of the Holders of not less than a majority in
principal amount of the Outstanding Securities of each series affected by such
supplemental indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized by a Board Resolution, and the Trustee may
enter into an indenture or indentures supplemental hereto for the purpose of
adding any provisions to or changing in any manner or eliminating any of the
provisions of this Indenture or of modifying in any manner the rights of the
Holders of Securities of such series under this Indenture; provided, however,
that no such supplemental indenture shall, without the consent of the Holder of
each Outstanding Security affected thereby,

          (1)  except to the extent permitted by Sections 3.11 or 3.14 or as
otherwise specified as contemplated by Section 2.1 or Section 3.1 with respect
to the deferral of the payment of interest on the Securities of any series or
the shortening of the Stated Maturity of the Securities of any series, change
the Stated Maturity of the principal of, or any installment of interest
(including any Additional Interest) on, any Security, or reduce the principal
amount thereof or the rate of interest thereon or reduce any premium payable
upon the redemption thereof, or reduce the amount of principal of a Discount
Security that would be due and payable upon a declaration of acceleration of the
Maturity thereof 

                                     -63-
<PAGE>
 
pursuant to Section 5.2, or change the place of payment where, or the coin or
currency in which, any Security or interest thereon is payable, or impair the
right to institute suit for the enforcement of any such payment on or after the
Stated Maturity thereof (or, in the case of redemption, on or after the
Redemption Date), or

          (2)  reduce the percentage in principal amount of the Outstanding
Securities of any series, the consent of whose Holders is required for any such
supplemental indenture, or the consent of whose Holders is required for any
waiver (of compliance with certain provisions of this Indenture or certain
defaults hereunder and their consequences) provided for in this Indenture, or

          (3)  modify any of the provisions of this Section, Section 5.13 or
Section 10.5, except to increase any such percentage or to provide that certain
other provisions of this Indenture cannot be modified or waived without the
consent of the Holder of each Security affected thereby; or

          (4)  modify the provisions in Article XIII of this Indenture with
respect to the subordination of Outstanding Securities of any series in a manner
adverse to the Holders thereof;
provided, further, that, in the case of the Securities of a series issued to a
GBB Trust, so long as any of the corresponding series of Preferred Securities
issued by such GBB Trust remains outstanding, (i) no such amendment shall be
made that adversely affects the holders of such Preferred Securities in any
material respect, and no termination of this Indenture shall occur, and no
waiver of any Event of Default or compliance with any covenant under this
Indenture shall be effective, without the prior consent of the holders of at
least a majority of the aggregate liquidation preference of such Preferred
Securities then outstanding unless and until the principal (and premium, if any)
of the Securities of such series and all accrued and, subject to Section 3.7,
unpaid interest (including any Additional Interest) thereon have been paid in
full and (ii) no amendment shall be made to Section 5.8 of this Indenture that
would impair the rights of the holders of Preferred Securities provided therein
without the prior consent of the holders of each Preferred Security then
outstanding unless and until the principal (and premium, if any) of the
Securities of such series and all accrued and (subject to Section 3.7) unpaid
interest (including any Additional Interest) thereon have been paid in full.

          A supplemental indenture that changes or eliminates any covenant or
other provision of this Indenture that has expressly been included solely for
the benefit of one or more particular series of Securities or Preferred
Securities, or which modifies the rights of the Holders of Securities or holders
of Preferred Securities of such series with respect to such covenant or other
provision, shall be deemed not to affect the rights under this Indenture of the
Holders of Securities or holders of Preferred Securities of any other series.

                                     -64-
<PAGE>
 
          It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

Section 9.3.   Execution of Supplemental Indentures.

          In executing or accepting the additional series of Securities created
by any supplemental indenture permitted by this Article or the modifications
thereby of any series of Securities previously created by this Indenture, the
Trustee shall be entitled to receive, and (subject to Section 6.1) shall be
fully protected in relying upon, an Officers' Certificate and an Opinion of
Counsel stating that the execution of such supplemental indenture is authorized
or permitted by this Indenture, and that all conditions precedent have been
complied with.  The Trustee may, but shall not be obligated to, enter into any
such supplemental indenture which affects the Trustee's own rights, duties or
immunities under this Indenture or otherwise.



Section 9.4.   Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article IX
or delivery to the Trustee of the Officers' Certificate pursuant to Section 3.1
hereof (which Officers' Certificate shall have the effect of a supplemental
indenture for all purposes hereunder), this Indenture shall be modified in
accordance therewith, and such supplemental indenture shall form a part of this
Indenture for all purposes; and every Holder of Securities theretofore or
thereafter authenticated and delivered hereunder shall be bound thereby.

Section 9.5.   Conformity with Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article IX and
every Officers' Certificate delivered to the trustee pursuant to Section 3.1
hereof shall conform to the requirements of the Trust Indenture Act as then in
effect.

Section 9.6.   Reference in Securities to Supplemental Indentures.

          Securities authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article IX or delivery to the Trustee of
the Officers' Certificate pursuant to Section 3.1 hereof (which Officers'
Certificate shall have the effect of a supplemental indenture for all purposes
hereunder) may, and shall if required by the Company, bear a notation in form
approved by the Company as to any 

                                     -65-
<PAGE>
 
matter provided for in such supplemental indenture or such Officers'
Certificate. If the Company shall so determine, new Securities of any series so
modified as to conform, in the opinion of the Company, to any such supplemental
indenture or such Officers's Certificate may be prepared and executed by the
Company and authenticated and delivered by the Trustee in exchange for
Outstanding Securities of such series.

                                   ARTICLE X

                                   COVENANTS

Section 10.1.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
securities that it will duly and punctually pay the principal of (and premium,
if any) and interest on the Securities of that series in accordance with the
terms of such Securities and this Indenture.



Section 10.2.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities, an office or agency where Securities of that series may be presented
or surrendered for payment and an office or agency where Securities of that
series may be surrendered for transfer or exchange and where notices and demands
to or upon the Company in respect of the Securities of that series and this
Indenture may be served.  The Company initially appoints the Trustee, acting
through its Corporate Trust Office, as its agent for said purposes.  The Company
will give prompt written notice to the Trustee of any change in the location of
any such office or agency.  If at any time the Company shall fail to maintain
such office or agency or shall fail to furnish the Trustee with the address
thereof, such presentations, surrenders, notices and demands may be made or
served at the Corporate Trust Office of the Trustee, and the Company hereby
appoints the Trustee as its agent to receive all such presentations, surrenders,
notices and demands.

          The Company may also from time to time designate one or more other
offices or agencies where the Securities may be presented or surrendered for any
or all of such purposes, and may from time to time rescind such designations;
provided, however, that no such designation or rescission shall in any manner
relieve the Company of its obligation to maintain an office or agency in each
Place of Payment for Securities of any series for such purposes.  The Company
will give prompt written notice to the Trustee of any such designation and any
change in the location of any such office or agency.

                                     -66-
<PAGE>
 
Section 10.3.  Money for Security Payments to be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on any of the Securities of such
series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal (and premium, if any) or interest
so becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided, and will promptly notify the Trustee of its
failure so to act.

          Whenever the Company shall have one or more Paying Agents, it will,
prior to 10:00 a.m. California time on each due date of the principal of or
interest on any Securities, deposit with a Paying Agent a sum sufficient to pay
the principal (and premium, if any) or interest so becoming due, such sum to be
held in trust for the benefit of the Persons entitled to such principal and
premium (if any) or interest, and (unless such Paying Agent is the Trustee) the
Company will promptly notify the Trustee of its failure so to act.

          The Company will cause each Paying Agent other than the Trustee to
execute and deliver to the Trustee an instrument in which such Paying Agent
shall agree with the Trustee, subject to the provisions of this Section 10.3,
that such Paying Agent will:

          (1)  hold all sums held by it for the payment of the principal of (and
premium, if any) or interest on Securities in trust for the benefit of the
Persons entitled thereto until such sums shall be paid to such Persons or
otherwise disposed of as herein provided;

          (2)  give the Trustee notice of any default by the Company (or any
other obligor upon the Securities) in the making of any payment of principal
(and premium, if any) or interest:

          (3)  at any time during the continuance of any such default, upon the
written request of the Trustee, forthwith pay to the Trustee all sums so held in
trust by such Paying Agent; and

          (4)  comply with the provisions of the Trust Indenture Act applicable
to it as a Paying Agent.

          The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying Agent, such sums to be held by the Trustee
upon the same trusts as those upon which such sums were held by the Company or
such Paying Agent; and, upon such 

                                     -67-
<PAGE>
 
payment by any Paying Agent to the Trustee, such Paying Agent shall be released
from all further liability with respect to such money.

          Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on any Security and remaining unclaimed for two years after
such principal (and premium, if any) or interest has become due and payable
shall (unless otherwise required by mandatory provision of applicable escheat or
abandoned or unclaimed property law) be paid on Company Request to the Company,
or (if then held by the Company) shall (unless otherwise required by mandatory
provision of applicable escheat or abandoned or unclaimed property law) be
discharged from such trust; and the Holder of such Security shall thereafter, as
an unsecured general creditor, look only to the Company for payment thereof, and
all liability of the Trustee or such Paying Agent with respect to such trust
money, and all liability of the Company as trustee thereof, shall thereupon
cease; provided, however, that the Trustee or such Paying Agent, before being
required to make any such repayment, may at the expense of the Company cause to
be published once, in a newspaper published in the English language, customarily
published on each Business Day and of general circulation in the state of
California, notice that such money remains unclaimed and that, after a date
specified therein, which shall not be less than 30 days from the date of such
publication, any unclaimed balance of such money then remaining will be repaid
to the Company.

Section 10.4.  Statement as to Compliance.

          The Company shall deliver to the Trustee, within 120 days after the
end of each calendar year of the Company ending after the date hereof, an
Officers' Certificate covering the preceding calendar year, stating whether or
not to the best knowledge of the signers thereof the Company is in default in
the performance, observance or fulfillment of or compliance with any of the
terms, provisions, covenants and conditions of this Indenture, and if the
Company shall be in default, specifying all such defaults and the nature and
status thereof of which they may have knowledge.  For the purpose of this
Section 10.4, compliance shall be determined without regard to any grace period
or requirement of notice provided pursuant to the terms of this Indenture.

Section 10.5.  Waiver of Certain Covenants.

          The Company may omit in any particular instance to comply with any
covenant or condition provided pursuant to Sections 3.1, 9.1(3), or 9.1(4) with
respect to the Securities of any series, if before or after the time for such
compliance the Holders of at least a majority in principal amount of the
Outstanding Securities of such series shall, by Act of such Holders, either
waive such compliance in such instance or generally waive compliance with such
covenant or condition, but no such waiver shall extend to or affect 

                                     -68-
<PAGE>
 
such covenant or condition except to the extent so expressly waived, and, until
such waiver shall become effective, the obligations of the Company in respect of
any such covenant or condition shall remain in full force and effect.

Section 10.6.  Additional Sums.

          In the case of the Securities of a series issued to a GBB Trust, so
long as no Event of Default has occurred and is continuing and except as
otherwise specified as contemplated by Section 2.1 or Section 3.1, in the event
that (i) such GBB Trust is the Holder of all of the Outstanding Securities of
such series, (ii) a Tax Event in respect of such GBB Trust shall have occurred
and be continuing and (iii) the Company shall not have (A) redeemed the
Securities of such series pursuant to Section 11.7(b) or (B) terminated such GBB
Trust pursuant to Section 9.2(b) of the related Trust Agreement, the Company
shall pay to such GBB Trust (and its permitted successors or assigns under the
related Trust Agreement) for so long as such GBB Trust (or its permitted
successor or assignee) is the registered holder of any Securities of such
series, such additional amounts as may be necessary in order that the amount of
Distributions (including any Additional Amounts (as defined in such Trust
Agreement)) then due and payable by such GBB Trust on the related Preferred
Securities and Common Securities that at any time remain outstanding in
accordance with the terms thereof shall not be reduced as a result of any
Additional Taxes (the "Additional Sums"). Whenever in this Indenture or the
Securities there is a reference in any context to the payment of principal of or
interest on the Securities, such mention shall be deemed to include mention of
the payments of the Additional Sums provided for in this paragraph to the extent
that, in such context, Additional Sums are, were or would be payable in respect
thereof pursuant to the provisions of this paragraph and express mention of the
payment of Additional Sums (if applicable) in any provisions hereof shall not be
construed as excluding Additional Sums in those provisions hereof where such
express mention is not made; provided, however, that the deferral of the payment
of interest pursuant to Section 3.11 or the Securities shall not defer the
payment of any Additional Sums that may be due and payable.

Section 10.7.  Additional Covenants.

          The Company covenants and agrees with each Holder of Securities of any
series that it shall not, and it shall not permit any Subsidiary of the Company
to, (a) declare or pay any dividends or distributions on, or redeem purchase,
acquire or make a liquidation payment with respect to, any shares of the
Company's capital stock (which includes common and preferred stock), or (b) make
any payment of principal of or interest or premium, if any, on or repay,
repurchase or redeem any debt securities of the Company (including Securities
other than the Securities of such series) that rank pari passu in all respects
with or junior in interest to the Securities of such series or make any
guarantee payments with respect to any guarantee by the Company of debt
securities of any 

                                     -69-
<PAGE>
 
subsidiary of the Company if such guarantee ranks pari passu in all respects
with or junior in interest to the Securities (other than (a) dividends or
distributions in capital stock of the Company (which includes common and
preferred stock), (b) any declaration of a dividend in connection with the
implementation of a rights plan or the redemption or repurchase of any such
rights pursuant thereto, (c) payments under the GBB Guarantee related to the
Preferred Securities issued by the GBB Trust holding Securities of such series,
and (d) purchases of Common Stock related to the issuance of Common Stock or
rights under any of the Company's benefit plans for its directors, officers or
employees or related to the issuance of Common Stock (or securities convertible
into or exchangeable for common stock) as consideration in an acquisition
transaction) if at such time (i) there shall have occurred any event of which
the Company has actual knowledge that (A) with the giving of notice or the lapse
of time or both, would constitute an Event of Default with respect to the
Securities of such series and (B) in respect of which the Company shall not have
taken reasonable steps to cure, (ii) if the Securities of such series are held
by a GBB Trust, the Company shall be in default with respect to its payment of
any obligations under the GBB Guarantee relating to the Preferred Securities
issued by such GBB Trust or (iii) the Company shall have given notice of its
election to begin an Extension Period with respect to the Securities of such
series as provided herein and shall not have rescinded such notice, or such
Extension Period, or any extension thereof, shall be continuing.

          The Company also covenants with each Holder of Securities of a series
issued to a GBB Trust (i) to maintain directly or indirectly 100% ownership of
the Common Securities of such GBB Trust; provided, however, that any permitted
successor of the Company hereunder may succeed to the Company's ownership of
such Common Securities, (ii) not to voluntarily terminate, wind-up or liquidate
such GBB Trust, except (a) in connection with a distribution of the Securities
of such series to the holders of Trust Securities in liquidation of such GBB
Trust or (b) in connection with certain mergers, consolidations or amalgamations
permitted by the related Trust Agreement and (iii) to use its reasonable
efforts, consistent with the terms and provisions of such Trust Agreement, to
cause such GBB Trust to remain classified as a grantor trust and not an
association taxable as a corporation for United States federal income tax
purposes.

                                   ARTICLE XI

                            REDEMPTION OF SECURITIES

Section 11.1   Applicability of This Article.

          Redemption of Securities of any series (whether by operation of a
sinking fund or otherwise) as permitted or required by any form of Security
issued pursuant to this Indenture shall be made in accordance with such form of
Security and this Article; provided, however, that if any provision of any such
form of Security shall conflict with 

                                     -70-
 

<PAGE>
 
any provision of this Article, the provision of such form of Security shall
govern. Except as otherwise set forth in the form of Security for such series,
each Security of such series shall be subject to partial redemption only in the
amount of $25 or, in the case of the Securities of a series issued to a GBB
Trust, $25, or integral multiples of $25 in excess thereof.

Section 11.2.  Election to Redeem; Notice to Trustee.

          The election of the Company to redeem any Securities shall be
evidenced by or pursuant to a Board Resolution.  In case of any redemption at
the election of the Company of less than all of the Securities of any particular
series and having the same terms, the Company shall, not less than 30 nor more
than 60 days prior to the Redemption Date (unless a shorter notice shall be
satisfactory to the Trustee), notify the Trustee of such date and of the
principal amount of Securities of that series to be redeemed.  In the case of
any redemption of Securities prior to the expiration of any restriction on such
redemption provided in the terms of such Securities, the Company shall furnish
the Trustee with an Officers' Certificate and an Opinion of Counsel evidencing
compliance with such restriction.

Section 11.3.  Selection of Securities to be Redeemed.

          If less than all the Securities of any series are to be redeemed
(unless all the Securities of such series and of a specified tenor are to be
redeemed or unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of a portion of the principal amount of any Security of such series,
provided that the portion of the principal amount of any Security not redeemed
shall be in an authorized denomination (which shall not be less than the minimum
authorized denomination) for such Security.  If less than all the Securities of
such series and of a specified tenor are to be redeemed (unless such redemption
affects only a single Security), the particular Securities to be redeemed shall
be selected not more than 60 days prior to the Redemption Date by the Trustee,
from the Outstanding Securities of such series and specified tenor not
previously called for redemption in accordance with the preceding sentence.

          The Trustee shall promptly notify the Company in writing of the
Securities selected for partial redemption and the principal amount thereof to
be redeemed.  For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Security redeemed or to be redeemed only in part, to the
portion of the principal amount of such Security which has 

                                     -71- 

<PAGE>
 
been or is to be redeemed. If the Company shall so direct, Securities registered
in the name of the Company, any Affiliate or any Subsidiary thereof shall not be
included in the Securities selected for redemption.

Section 11.4.  Notice of Redemption.

          Notice of redemption shall be given by first-class mail, postage
prepaid, mailed not later than the thirtieth day, and not earlier than the
sixtieth day, prior to the Redemption Date, to each Holder of Securities to be
redeemed, at the address of such Holder as it appears in the Securities
Register.

          With respect to Securities of each series to be redeemed, each notice
of redemption shall state:

          (a)  the Redemption Date;

          (b)  the Redemption Price;

          (c)  if less than all Outstanding Securities of such particular series
and having the same terms are to be redeemed, the identification (and, in the
case of partial redemption, the respective principal amounts) of the particular
Securities to be redeemed;

          (d)  that on the Redemption Date, the Redemption Price will become due
and payable upon each such Security or portion thereof, and that interest
thereon, if any, shall cease to accrue on and after said date;

          (e)  the place or places where such Securities are to be surrendered
for payment of the Redemption Price; and

          (f)  that the redemption is for a sinking fund, if such is the case.

          Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company and shall not be
irrevocable.  The notice if mailed in the manner herein provided shall be
conclusively presumed to have been duly given, whether or not the Holder
receives such notice.  In any case, a failure to give such notice by mail or any
defect in the notice to the Holder of any Security designated for redemption as
a whole or in part shall not affect the validity of the proceedings for the
redemption of any other Security.

Section 11.5.  Deposit of Redemption Price.

                                     -72- 

<PAGE>
 
          Prior to 10:00 a.m. California time on the Redemption Date specified
in the notice of redemption given as provided in Section 11.4, the Company will
deposit with the Trustee or with one or more Paying Agents (or if the Company is
acting as its own Paying Agent, the Company will segregate and hold in trust as
provided in Section 10.3) an amount of money sufficient to pay the Redemption
Price of, and any accrued interest (including Additional Interest) on, all the
Securities which are to be redeemed on that date.

Section 11.6.  Payment of Securities Called for Redemption.

          If any notice of redemption has been given as provided in Section
11.4, the Securities or portion of Securities with respect to which such notice
has been given shall become due and payable on the date and at the place or
places stated in such notice at the applicable Redemption Price. On presentation
and surrender of such Securities at a Place of Payment in said notice specified,
the said securities or the specified portions thereof shall be paid and redeemed
by the Company at the applicable Redemption Price, together with accrued
interest (including any Additional Interest) to the Redemption Date; provided,
however, that, unless otherwise specified as contemplated by Section 3.1,
installments of interest whose Stated Maturity is on or prior to the Redemption
Date will be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
3.7.

          Upon presentation of any Security redeemed in part only, the Company
shall execute and the Trustee shall authenticate and deliver to the Holder
thereof, at the expense of the Company, a new Security or Securities of the same
series, of authorized denominations, in aggregate principal amount equal to the
portion of the Security not redeemed so presented and having the same Original
Issue Date, Stated Maturity and terms.  If a Global Security is so surrendered,
such new Security will also be a new Global Security.

          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal of and premium, if any, on such
Security shall, until paid, bear interest from the Redemption Date at the rate
prescribed therefor in the Security.

Section 11.7.  Right of Redemption of Securities Initially Issued to a GBB
               Trust.

          In the case of the Securities of a series initially issued to a GBB
Trust, except as otherwise specified as contemplated by Section 3.1, the
Company, at its option, may redeem such Securities (i) on or after the date five
years after the Original Issue Date of such Securities, in whole at any time or
in part from time to time, or (ii) upon the occurrence and during the
continuation of a Tax Event, Investment Company Event, or Capital Treatment
Event, at any time within 90 days following the occurrence of such Tax 

                                     -73-
<PAGE>
 
Event, Investment Company Event or Capital Treatment Event in respect of such
GBB Trust, in whole (but not in part), in each case at a Redemption Price equal
to 100% of the principal amount thereof.

                                  ARTICLE XII

                                 SINKING FUNDS

Section 12.1.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of any series except as otherwise specified as
contemplated by Section 3.1 for such Securities.

          The minimum amount of any sinking fund payment provided for by the
terms of any Securities of any series is herein referred to as a "mandatory
sinking fund payment", and any sinking fund payment in excess of such minimum
amount which is permitted to be made by the terms of such Securities of any
series is herein referred to as an "optional sinking fund payment".  If provided
for by the terms of any Securities of any series, the cash amount of any sinking
fund payment may be subject to reduction as provided in Section 12.2.  Each
sinking fund payment shall be applied to the redemption of Securities of any
series as provided for by the terms of such Securities.

Section 12.2.  Satisfaction of Sinking Fund Payments with Securities.

          In lieu of making all or any part of a mandatory sinking fund payment
with respect to any Securities of a series in cash, the Company may at its
option, at any time no more than 16 months and no less than 30 days prior to the
date on which such sinking fund payment is due, deliver to the Trustee
Securities of such series (together with the unmatured coupons, if any,
appertaining thereto) theretofore purchased or otherwise acquired by the
Company, except Securities of such series that have been redeemed through the
application of mandatory or optional sinking fund payments pursuant to the terms
of the Securities of such series, accompanied by a Company Order instructing the
Trustee to credit such obligations and stating that the Securities of such
series were originally issued by the Company by way of bona fide sale or other
negotiation for value; provided that the Securities to be so credited have not
been previously so credited.  The Securities to be so credited shall be received
and credited for such purpose by the Trustee at the redemption price for such
Securities, as specified in the Securities so to be redeemed, for redemption
through operation of the sinking fund and the amount of such sinking fund
payment shall be reduced accordingly.

Section 12.3.  Redemption of Securities for Sinking Fund.

                                     -74- 

<PAGE>
 
          Not less than 60 days prior to each sinking fund payment date for any
series of Securities, the Company will deliver to the Trustee an Officers'
Certificate specifying the amount of the next ensuing sinking fund payment for
such Securities pursuant to the terms of such Securities, the portion thereof,
if any, which is to be satisfied by payment of cash in the currency in which the
Securities of such series are payable (except as provided pursuant to Section
3.1) and the portion thereof, if any, which is to be satisfied by delivering and
crediting Securities pursuant to Section 12.2 and will also deliver to the
Trustee any Securities to be so delivered.  Such Officers' Certificate shall be
irrevocable and upon its delivery the Company shall be obligated to make the
cash payment or payments therein referred to, if any, on or before the
succeeding sinking fund payment date.  In the case of the failure of the Company
to deliver such Officers' Certificate (or, as required by this Indenture, the
Securities and coupons, if any, specified in such Officers' Certificate), the
sinking fund payment due on the succeeding sinking fund payment date for such
series shall be paid entirely in cash and shall be sufficient to redeem the
principal amount of the Securities of such series subject to a mandatory sinking
fund payment without the right to deliver or credit securities as provided in
Section 12.2 and without the right to make the optional sinking fund payment
with respect to such series at such time.

          Any sinking fund payment or payments (mandatory or optional) made in
cash plus any unused balance of any preceding sinking fund payments made with
respect to the Securities of any particular series shall be applied by the
Trustee (or by the Company if the Company is acting as its own Paying Agent) on
the sinking fund payment date on which such payment is made (or, if such payment
is made before a sinking fund payment date, on the sinking fund payment date
immediately following the date of such payment) to the redemption of Securities
of such series at the Redemption Price specified in such Securities with respect
to the sinking fund.  Any sinking fund moneys not so applied or allocated by the
Trustee (or, if the Company is acting as its own Paying Agent, segregated and
held in trust by the Company as provided in Section 10.3) for such series and
together with such payment (or such amount so segregated) shall be applied in
accordance with the provisions of this Section 12.3.  Any and all sinking fund
moneys with respect to the Securities of any particular series held by the
Trustee (or if the Company is acting as its own Paying Agent, segregated and
held in trust as provided in Section 10.3) on the last sinking fund payment date
with respect to Securities of such series and not held for the payment or
redemption of particular Securities of such series shall be applied by the
Trustee (or by the Company if the Company is acting as its own Paying Agent),
together with other moneys, if necessary, to be deposited (or segregated)
sufficient for the purpose, to the payment of the principal of the Securities of
such series at Maturity. The Trustee shall select the Securities to be redeemed
upon such sinking fund payment date in the manner specified in Section 11.3 and
cause notice of the redemption thereof to be given in the name of and at the
expense of the Company in the manner provided in Section 11.4.  Such notice
having been duly given, the redemption of such Securities shall be made upon 

                                     -75-
<PAGE>
 
the terms and in the manner stated in Section 11.6. On or before each sinking
fund payment date, the Company shall pay to the Trustee (or, if the Company is
acting as its own Paying Agent, the Company shall segregate and hold in trust as
provided in Section 10.3) in cash a sum in the currency in which Securities of
such series are payable (except as provided pursuant to Section 3.1) equal to
the principal and any interest accrued to the Redemption Date for Securities or
portions thereof to be redeemed on such sinking fund payment date pursuant to
this Section 12.3.

          Neither the Trustee nor the Company shall redeem any Securities of a
series with sinking fund moneys or mail any notice of redemption of Securities
of such series by operation of the sinking fund for such series during the
continuance of a default in payment of interest, if any, on any Securities of
such series or of any Event of Default (other than an Event of Default occurring
as a consequence of this paragraph) with respect to the Securities of such
series, except that if the notice of redemption shall have been provided in
accordance with the provisions hereof, the Trustee (or the Company, if the
Company is then acting as its own Paying Agent) shall redeem such Securities if
cash sufficient for that purpose shall be deposited with the Trustee (or
segregated by the Company) for that purpose in accordance with the terms of this
Article XII.  Except as aforesaid, any moneys in the sinking fund for such
series at the time when any such default or Event of Default shall occur and any
moneys thereafter paid into such sinking fund shall, during the continuance of
such default or Event of Default, be held as security for the payment of the
Securities and coupons, if any, of such series; provided, however, that in case
such default or Event of Default shall have been cured or waived herein, such
moneys shall thereafter be applied on the next sinking fund payment date for the
Securities of such series on which such moneys may be applied pursuant to the
provisions of this Section 12.3.

                                  ARTICLE XIII

                          SUBORDINATION OF SECURITIES

Section 13.1.  Securities Subordinate to Senior and Subordinated Debt.

          The Company covenants and agrees, and each Holder of a Security, by
its acceptance thereof, likewise covenants and agrees, that, to the extent and
in the manner hereinafter set forth in this Article XIII, the payment of the
principal of (and premium, if any) and interest (including any Additional
Interest) on each and all of the Securities are hereby expressly made
subordinate and subject in right of payment to the prior payment in full of all
amounts then due and payable in respect of all Senior and Subordinated Debt.

Section 13.2.  Payment Over of Proceeds Upon Dissolution, Etc.

                                     -76- 

<PAGE>
 
          In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company (each such event, if any, herein
sometimes referred to as a "Proceeding"), then the holders of Senior and
Subordinated Debt shall be entitled to receive payment in full of Allocable
Amounts of such Senior and Subordinated Debt, or provision shall be made for
such payment in cash or cash equivalents or otherwise in a manner satisfactory
to the holders of Senior and Subordinated Debt, before the Holders of the
Securities are entitled to receive or retain any payment or distribution of any
kind or character, whether in cash, property or securities (including any
payment or distribution which may be payable or deliverable by reason of the
payment of any other Debt of the Company subordinated to the payment of the
Securities, such payment or distribution being hereinafter referred to as a
"Junior Subordinated Payment"), on account of principal of (or premium, if any)
or interest (including any Additional Interest) on the Securities or on account
of the purchase or other acquisition of Securities by the Company or any
Subsidiary and to that end the holders of Senior and Subordinated Debt shall be
entitled to receive, for application to the payment thereof, any payment or
distribution of any kind or character, whether in cash, property or securities,
including any Junior Subordinated Payment, which may be payable or deliverable
in respect of the Securities in any such Proceeding.

          In the event that, notwithstanding the foregoing provisions of this
Section 13.2, the Trustee or the Holder of any Security shall have received any
payment or distribution of assets of the Company of any kind or character,
whether in cash, property or securities, including any Junior Subordinated
Payment, before all Allocable Amounts of all Senior and Subordinated Debt are
paid in full or payment thereof is provided for in cash or cash equivalents or
otherwise in a manner satisfactory to the holders of Senior and Subordinated
Debt, and if such fact shall, at or prior to the time of such payment or
distribution, have been made known to the Trustee or, as the case may be, such
Holder, then and in such event such payment or distribution shall be paid over
or delivered forthwith to the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee, agent or other Person making payment or
distribution of assets of the Company for application to the payment of all
Allocable Amounts of all Senior and Subordinated Debt remaining unpaid, to the
extent necessary to pay all Allocable Amounts of all Senior and Subordinated
Debt in full, after giving effect to any concurrent payment or distribution to
or for the holders of Senior and Subordinated Debt.

          For purposes of this Article XIII only, the words "any payment or
distribution of any kind or character, whether in cash, property or securities"
shall not be deemed to include shares of stock of the Company as reorganized or
readjusted, or securities of the Company or any other corporation provided for
by a plan of reorganization or readjustment which securities are subordinated in
right of payment to all then outstanding Senior and Subordinated Debt to
substantially the same extent as the Securities are so 

                                     -77- 

<PAGE>
 
subordinated as provided in this Article XIII. The consolidation of the Company
with, or the merger of the Company into, another Person or the liquidation or
dissolution of the Company following the sale of all or substantially all of its
properties and assets as an entirety to another Person upon the terms and
conditions set forth in Article VIII shall not be deemed a Proceeding for the
purposes of this Section 13.2 if the Person formed by such consolidation or into
which the Company is merged or the Person which acquires by sale such properties
and assets as an entirety, as the case may be, shall, as a part of such
consolidation, merger, or sale comply with the conditions set forth in Article
VIII.

Section 13.3.  Prior Payment to Senior and Subordinated Debt Upon Acceleration
               of Securities.

          In the event that any Securities are declared due and payable before
their Stated Maturity, then and in such event the holders of the Senior and
Subordinated Debt outstanding at the time such Securities so become due and
payable shall be entitled to receive payment in full of all Allocable Amounts
due on or in respect of such Senior and Subordinated Debt (including any amounts
due upon acceleration), or provision shall be made for such payment in cash or
cash equivalents or otherwise in a manner satisfactory to the holders of Senior
and Subordinated Debt, before the Holders of the Securities are entitled to
receive any payment or distribution of any kind or character, whether in cash,
properties or securities (including any Junior Subordinated Payment) by the
Company on account of the principal of (or premium, if any) or interest
(including any Additional Interest) on the Securities or on account of the
purchase or other acquisition of Securities by the Company or any Subsidiary;
provided, however, that nothing in this Section 13.3 shall prevent the
satisfaction of any sinking fund payment in accordance with this Indenture or as
otherwise specified as contemplated by Section 3.1 for the Securities of any
series by delivering and crediting pursuant to Section 12.2 or as otherwise
specified as contemplated by Section 3.1 for the Securities of any series
Securities which have been acquired (upon redemption or otherwise) prior to such
declaration of acceleration.

          In the event that, notwithstanding the foregoing, the Company shall
make any payment to the Trustee or the Holder of any Security prohibited by the
foregoing provisions of this Section 13.3, and if such fact shall, at or prior
to the time of such payment, have been made known to the Trustee or, as the case
may be, such Holder, then and in such event such payment shall be paid over and
delivered forthwith to the Company.

          The provisions of this Section 13.3 shall not apply to any payment
with respect to which Section 13.2 would be applicable.

Section 13.4.  No Payment When Senior and Subordinated Debt in Default.

          (a)  In the event and during the continuation of any default in the
payment of principal of (or premium, if any) or interest on any Senior and
Subordinated Debt, or in 

                                     -78- 
<PAGE>
 
the event that any event of default with respect to any Senior and Subordinated
Debt shall have occurred and be continuing and shall have resulted in such
Senior and Subordinated Debt becoming or being declared due and payable prior to
the date on which it would otherwise have become due and payable, unless and
until such event of default shall have been cured or waived or shall have ceased
to exist and such acceleration shall have been rescinded or annulled, or (b) in
the event any judicial proceeding shall be pending with respect to any such
default in payment or such event or default, then no payment or distribution of
any kind or character, whether in cash, properties or securities (including any
Junior Subordinated Payment) shall be made by the Company on account of
principal of (or premium, if any) or interest (including any Additional
Interest), if any, on the Securities or on account of the purchase or other
acquisition of Securities by the Company or any Subsidiary, in each case unless
and until all Allocable Amounts of such Senior and Subordinated Debt are paid in
full; provided, however, that nothing in this Section 13.4 shall prevent the
satisfaction of any sinking fund payment in accordance with this Indenture or as
otherwise specified as contemplated by Section 3.1 for the Securities of any
series by delivering and crediting pursuant to Section 12.2 or as otherwise
specified as contemplated by Section 3.1 for the Securities of any series
Securities which have been acquired (upon redemption or otherwise) prior to such
default in payment or event of default.

          In the event that, notwithstanding the foregoing, the Company shall
make any payment to the Trustee or the Holder of any Security prohibited by the
foregoing provisions of this Section 13.4, and if such fact shall, at or prior
to the time of such payment, have been made known to the Trustee or, as the case
may be, such Holder, then and in such event such payment shall be paid over and
delivered forthwith to the Company.

          The provisions of this Section 13.4 shall not apply to any payment
with respect to which Section 13.2 would be applicable.

Section 13.5.  Payment Permitted If No Default.

          Nothing contained in this Article XIII or elsewhere in this Indenture
or in any of the Securities shall prevent (a) the Company, at any time except
during the pendency of any Proceeding referred to in Section 13.2 or under the
conditions described in Sections 13.3 and 13.4, from making payments at any time
of principal of (and premium, if any) or interest (including Additional
Interest) on the Securities, or (b) the application by the Trustee of any money
deposited with it hereunder to the payment of or on account of the principal of
(and premium, if any) or interest (including any Additional Interest) on the
Securities or the retention of such payment by the Holders, if, at the time of
such application by the Trustee, it did not have knowledge that such payment
would have been prohibited by the provisions of this Article XIII.

Section 13.6.  Subrogation to Rights of Holders of Senior and Subordinated Debt.

                                     -79-
<PAGE>
 
          Subject to the payment in full of all amounts due or to become due on
all Senior and Subordinated Debt, or the provision for such payment in cash or
cash equivalents or otherwise in a manner satisfactory to the holders of Senior
and Subordinated Debt, the Holders of the Securities shall be subrogated to the
extent of the payments or distributions made to the holders of such Senior and
Subordinated Debt pursuant to the provisions of this Article XIII (equally and
ratably with the holders of all indebtedness of the Company which by its express
terms is subordinated to Senior and Subordinated Debt of the Company to
substantially the same extent as the Securities are subordinated to the Senior
and Subordinated Debt and is entitled to like rights of subrogation by reason of
any payments or distributions made to holders of such Senior and Subordinated
Debt) to the rights of the holders of such Senior and Subordinated Debt to
receive payments and distributions of cash, property and securities applicable
to the Senior and Subordinated Debt until the principal of (and premium, if any)
and interest on the Securities shall be paid in full.  For purposes of such
subrogation, no payments or distributions to the holders of the Senior and
Subordinated Debt of any cash, property or securities to which the Holders of
the Securities or the Trustee would be entitled except for the provisions of
this Article, and no payments over pursuant to the provisions of this Article
XIII to the holders of Senior and Subordinated Debt by Holders of the Securities
or the Trustee, shall, as among the Company, its creditors other than holders of
Senior and Subordinated Debt, and the Holders of the Securities, be deemed to be
a payment or distribution by the Company to or on account of the Senior and
Subordinated Debt.

Section 13.7.  Provisions Solely to Define Relative Rights.

          The provisions of this Article XIII are and are intended solely for
the purpose of defining the relative rights of the Holders of the Securities on
the one hand and the holders of Senior and Subordinated Debt on the other hand.
Nothing contained in this Article XIII or elsewhere in this Indenture or in the
Securities is intended to or shall (a) impair, as between the Company and the
Holders of the Securities, the obligations of the Company, which are absolute
and unconditional, to pay to the Holders of the Securities the principal of (and
premium, if any) and interest (including any Additional Interest) on the
Securities as and when the same shall become due and payable in accordance with
their terms; or (b) affect the relative rights against the Company of the
Holders of the Securities and creditors of the Company other than their rights
in relation to the holders of Senior and Subordinated Debt; or (c) prevent the
Trustee or the Holder of any Security from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture including, without
limitation, filing and voting claims in any Proceeding, subject to the rights,
if any, under this Article XIII of the holders of Senior and Subordinated Debt
to receive cash, property and securities otherwise payable or deliverable to the
Trustee or such Holder.

                                     -80-
<PAGE>
 
Section 13.8.  Trustee to Effectuate Subordination.

          Each Holder of a Security by his or her acceptance thereof authorizes
and directs the Trustee on his or her behalf to take such action as may be
necessary or appropriate to acknowledge or effectuate the subordination provided
in this Article XIII and appoints the Trustee his or her attorney-in-fact for
any and all such purposes.

Section 13.9.  No Waiver of Subordination Provisions.

          No right of any present or future holder of any Senior and
Subordinated Debt to enforce subordination as herein provided shall at any time
in any way be prejudiced or impaired by any act or failure to act on the part of
the Company or by any act or failure to act, in good faith, by any such holder,
or by any noncompliance by the Company with the terms, provisions and covenants
of this Indenture, regardless of any knowledge thereof that any such holder may
have or be otherwise charged with.

          Without in any way limiting the generality of the immediately
preceding paragraph, the holders of Senior and Subordinated Debt may, at any
time and from to time, without the consent of or notice to the Trustee or the
Holders of the Securities, without incurring responsibility to the Holders of
the Securities and without impairing or releasing the subordination provided in
this Article or the obligations hereunder of the Holders of the Securities to
the holders of Senior and Subordinated Debt, do any one or more of the
following:  (i) change the manner, place or terms of payment or extend the time
of payment of, or renew or alter, Senior and Subordinated Debt, or otherwise
amend or supplement in any manner Senior and Subordinated Debt or any instrument
evidencing the same or any agreement under which Senior and Subordinated Debt is
outstanding; (ii) sell, exchange, release or otherwise deal with any property
pledged, mortgaged or otherwise securing Senior and Subordinated Debt; (iii)
release any Person liable in any manner for the collection of Senior and
Subordinated Debt; and (iv) exercise or refrain from exercising any rights
against the Company and any other Person.

Section 13.10. Notice to Trustee.

          The Company shall give prompt written notice to the Trustee of any
fact known to the Company which would prohibit the making of any payment to or
by the Trustee in respect of the Securities.  Notwithstanding the provisions of
this Article XIII or any other provision of this Indenture, the Trustee shall
not be charged with knowledge of the existence of any facts which would prohibit
the making of any payment to or by the Trustee in respect of the Securities,
unless and until the Trustee shall have received written notice thereof from the
Company or a holder of Senior and Subordinated Debt or from any trustee, agent
or representative therefor; provided, however, that if the Trustee shall not
have received the notice provided for in this Section 13.10 at least two
Business Days prior 

                                     -81-
<PAGE>
 
to the date upon which by the terms hereof any monies may become payable for any
purpose (including, without limitation, the payment of the principal of (and
premium, if any) or interest (including any Additional Interest) on any
Security), then, anything herein contained to the contrary notwithstanding, the
Trustee shall have full power and authority to receive such monies and to apply
the same to the purpose for which they were received and shall not be affected
by any notice to the contrary which may be received by it within two Business
Days prior to such date.

          Subject to the provisions of Section 6.1, the Trustee shall be
entitled to rely on the delivery to it of a written notice by a Person
representing himself to be a holder of Senior and Subordinated Debt (or a
trustee therefor) to establish that such notice has been given by a holder of
Senior and Subordinated Debt (or a trustee therefor). In the event that the
Trustee determines in good faith that further evidence is required with respect
to the right of any Person as a holder of Senior and Subordinated Debt to
participate in any payment or distribution pursuant to this Article, the Trustee
may request such Person to furnish evidence to the reasonable satisfaction of
the Trustee as to the amount of Senior and Subordinated Debt held by such
Person, the extent to which such Person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such
Person under this Article, and if such evidence is not furnished, the Trustee
may defer any payment to such Person pending judicial determination as to the
right of such Person to receive such payment.

Section 13.11. Reliance on Judicial Order or Certificate of Liquidating Agent.

          Upon any payment or distribution of assets of the Company referred to
in this Article XIII, the Trustee, subject to the provisions of Section 6.1, and
the Holders of the Securities shall be entitled to rely upon any order or decree
entered by any court of competent jurisdiction in which such Proceeding is
pending, or a certificate of the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee for the benefit of creditors, agent or other Person
making such payment or distribution, delivered to the Trustee or to the Holders
of Securities, for the purpose of ascertaining the Persons entitled to
participate in such payment or distribution, the holders of the Senior and
Subordinated Debt and other indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all other
facts pertinent thereto or to this Article XIII.

Section 13.12. Trustee Not Fiduciary for Holders of Senior and Subordinated
               Debt.

          The Trustee, in its capacity as trustee under this Indenture, shall
not be deemed to owe any fiduciary duty to the holders of Senior and
Subordinated Debt and shall not be liable to any such holders if it shall in
good faith mistakenly pay over or distribute to Holders of Securities or to the
Company or to any other Person cash, property 

                                     -82-
<PAGE>
 
or securities to which any holders of Senior and Subordinated Debt shall be
entitled by virtue of this Article or otherwise.



Section 13.13. Rights of Trustee as Holder of Senior and Subordinated Debt;
               Preservation of Trustee's Rights.

          The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article XIII with respect to any Senior and
Subordinated Debt which may at any time be held by it, to the same extent as any
other holder of Senior and Subordinated Debt, and nothing in this Indenture
shall deprive the Trustee of any of its rights as such holder.

Section 13.14. Article Applicable to Paying Agents.

          In case at any time any Paying Agent other than the Trustee shall have
been appointed by the Company and be then acting hereunder, the term "Trustee"
as used in this Article XIII shall in such case (unless the context otherwise
requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were
named in this Article XIII in addition to or in place of the Trustee.

Section 13.15. Certain Conversions or Exchanges Deemed Payment.

          For the purposes of this Article XIII only, (a) the issuance and
delivery of junior securities upon conversion or exchange of Securities shall
not be deemed to constitute a payment or distribution on account of the
principal of (or premium, if any) or interest (including any Additional
Interest) on Securities or on account of the purchase or other acquisition of
Securities, and (b) the payment, issuance or delivery of cash, property or
securities (other than junior securities) upon conversion or exchange of a
Security shall be deemed to constitute payment on account of the principal of
such security.  For the purposes of this Section 13.15, the term "junior
securities" means (i) shares of any stock of any class of the Company and (ii)
securities of the Company which are subordinated in right of payment to all
Senior and Subordinated Debt which may be outstanding at the time of issuance or
delivery of such securities to substantially the same extent as, or to a greater
extent than, the Securities are so subordinated as provided in this Article
XIII.

                                    * * * *

                                     -83-
 

<PAGE>
 
          This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.



          IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed, and their respective corporate seals to be hereunto affixed
and attested, all as of the day and year first above written.

                              GREATER BAY BANCORP


                              By: /s/ Steven C. Smith
                                  ---------------------------------
                              Its: E.V.P., C.O.O. and C.F.O.
                                  ---------------------------------
Attest:

By /s/ Sven N. Hastings 
   ------------------------
Its S.V.P. and C.C.O.
    ------------------------



                              WILMINGTON TRUST COMPANY
                              as Trustee

                              By: /s/ Lario M. Marini
                                  ---------------------------------
                              Its: V.P.
                                  ---------------------------------
Attest:

By    C.L.K.
    ------------------------
    Its  V.P.
       ---------------------
         
                                     -84-
<PAGE>
 
STATE OF CALIFORNIA   )
                               ) SS.
COUNTY OF SANTA CLARA )


          On the 26th day of March, 1997 before me personally came Steven C.
Smith, E.V.P., C.O.O. and C.F.O., and Sven N. Hastings, S.V.P. and C.C.O., to me
known, who, being by me duly sworn, did depose and say that they are Steven C.
Smith, E.V.P., C.O.O. and C.F.O. and Sven N. Hastings, S.V.P. and C.C.O.,
respectively, of GREATER BAY BANCORP, one of the corporations described in and
which executed the foregoing instrument; that they know the seal of said
corporation; that the seal affixed to said instrument is such corporate seal;
and that they signed their name thereto by authority of the Board of Directors
of said corporation.


[SEAL]                                         /s/ Judy L. Hovgaard
                                               ---------------------------
                                                       Notary Public



STATE OF DELAWARE  )
                    ) SS.
COUNTY OF          )


          On the 27th day of March, 1997 before me personally came Lario M.
Marini, V.P. to me known, who, being by me duly sworn, did depose and say that
he is Vice President of WILMINGTON TRUST COMPANY one of the corporations
described in and which executed the foregoing instrument; that he knows the seal
of said corporation; that the seal affixed to said instrument is such corporate
seal; and that he signed his name thereto by authority of the Board of Directors
of said corporation.


[SEAL]                                          /s/ Kathleen A. Pidelini
                                               ---------------------------
                                                       Notary Public

                                     -85- 

<PAGE>
 
                                                                     EXHIBIT 4.2
 
                              GREATER BAY BANCORP

   9.75% JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES DUE APRIL 1, 2027

                    OFFICERS' CERTIFICATE AND COMPANY ORDER
                    ---------------------------------------


     Pursuant to the Indenture dated as of March 31, 1997 (the "Indenture"),
between Greater Bay Bancorp, a California corporation (the "Company") and
Wilmington Trust Company, as Debenture Trustee (the "Debenture Trustee") and
resolutions adopted by the Pricing Committee of the Company's Board of Directors
on March 24, 1997; this Officers' Certificate is being delivered to the
Debenture Trustee to establish the terms of one series of securities (the
"Securities") in accordance with Section 3.1 of the Indenture, to establish the
form of the Securities of such series in accordance with Section 2.1 of the
Indenture, to request the authentication and delivery of the Securities of such
series pursuant to Section 3.3 of the Indenture and to comply with the
provisions of Section 1.2 of the Indenture.  This Officers' Certificate shall be
treated for all purposes under the Indenture as a supplemental indenture
thereto.

     All conditions precedent provided for in the Indenture relating to the
establishment of (i) a series of Securities and (ii) the form of Securities of
such series have been complied with.

     Capitalized terms used but not otherwise defined herein shall have the
meanings assigned to them in the Indenture.

     I.   Establishment of Series of Securities pursuant to Section 3.1 of the
          --------------------------------------------------------------------
Indenture.
- --------- 

     There are hereby established pursuant to Section 3.1 of the Indenture a
series of Securities which shall have the following terms:

          A.   The Securities of such series shall bear the title "9.75% Junior
Subordinated Deferrable Interest Debentures Due April 1, 2027."

          B.   The aggregate principal amount of such series of Securities to be
issued pursuant to this Officers' Certificate and Company Order shall be limited
to $20,618,550 (except for Securities authenticated and delivered upon
registration of, transfer of, or in exchange for, or in lieu of, other
Securities of such series pursuant to Section 3.4, 3.5, 3.6, 9.6 or 11.7 of the
Indenture and except for any Securities which, pursuant to Section 3.3 of the
Indenture, are deemed never to have been authenticated and delivered
thereunder).

          C.   The date on which the principal of the Securities is due and
payable shall be April 1, 2027.
<PAGE>
 
          D.   The Securities shall bear interest at the rate of 9.75% per annum
(based upon a 360-day year of twelve 30-day months), from and including the date
of original issuance or from and including the most recent Interest Payment Date
to which interest has been paid or duly provided for, as the case may be,
payable quarterly in arrears on the 15th day of March, June, September and
December in each year (each, an "Interest Payment Date"), commencing June 15,
1997, until the principal thereof is paid or made available for payment.  The
Business Day next preceding an Interest Payment Date shall be the "Regular
Record Date" for the interest payable on such Interest Payment Date.  Accrued
interest that is not paid on such applicable Interest Payment Date will bear
additional interest on the amount thereof (to the extent permitted by law) at a
rate per annum of 9.75% thereof compounded quarterly.

     In addition, so long as no Event of Default with respect to the Securities
has occurred or is continuing, the Company has the right under the Indenture at
any time during the term of such Securities to defer the payment of interest at
any time or from time to time for a period not exceeding 20 consecutive
quarterly periods with respect to each Extension Period, provided that no
Extension Period may extend beyond the Stated Maturity.  At the end of such
Extension Period, the Company must pay all interest then accrued and unpaid
(together with interest thereon at the annual rate of 9.75%, compounded
quarterly, to the extent permitted by applicable law).

          E.   Principal of (and premium, if any) and interest on the Securities
will be payable, and, except as provided in Section 3.5 of the Indenture with
respect to a Global Security (as defined below), the transfer of the Securities
will be registrable and Securities (except as provided in paragraph (Q) hereof)
will be exchangeable for Securities bearing identical terms and provisions at
the corporate trust office of Wilmington Trust Company, in the City of
Wilmington, Delaware.

          F.   The Securities will be redeemable in whole at any time and in
part from time to time, at the option of the Company at any time on or after
April 1, 2002, subject to the Company having received prior approval of the
Board of Governors of the Federal Reserve System (the "Federal Reserve"), at a
redemption price equal to the accrued and unpaid interest on the Securities so
redeemed to the date fixed for redemption, plus 100% of the principal amount
thereof.

     In addition, upon the occurrence of a Tax Event, an Investment Company
Event or a Capital Treatment Event (as each such term is defined below) the
Company may, at its option and subject to receipt of prior approval of the
Federal Reserve if then required under applicable capital guidelines or policies
of the Federal Reserve, prepay the Securities in whole (but not in part) at any
time within 90 days of the occurrence of such Tax Event, Investment Company
Event or a Capital Treatment Event, at a redemption price equal to the accrued
and unpaid interest on 

                                       2
<PAGE>
 
the Securities so redeemed to the date fixed for redemption, plus 100% of the
principal amount thereof.

     "Tax Event" means the receipt by the Trust of an opinion of counsel
experienced in such matters to the effect that, as a result of any amendment to,
or change (including any announced prospective change) in, the laws (or any
regulations thereunder) of the United States or any political subdivision or
taxing authority thereof or therein, or as a result of any official
administrative pronouncement or judicial decision interpreting or applying such
laws or regulations, which amendment or change is effective or which
pronouncement or decision is announced on or after the date of issuance of the
Preferred Securities of the Trust, there is more than an insubstantial risk that
(i) the Trust is, or will be within 90 days of the date of such opinion, subject
to United States Federal income tax with respect to income received or accrued
on the Securities, (ii) interest payable by the Company on the Securities is
not, or within 90 days of the date of such opinion, will not be, deductible by
the Company, in whole or in part, for United States Federal income tax purposes,
or (iii) the Trust is, or will be within 90 days of the date of such opinion,
subject to more than a de minimis amount of other taxes, duties or other
governmental charges.

     "Investment Company Event" means, in respect of the Trust, the receipt by
the Trust of an Opinion of Counsel, rendered by a law firm experienced in such
matters, to the extent that, as a result of a change in law or regulation or a
change in interpretation or application of law or regulation by any legislative
body, court, governmental agency or regulatory authority, the Trust is or will
be considered an "investment company" that is required to be registered under
the 1940 Act, which change becomes effective on or after the date of original
issuance of the Preferred Securities of the Trust.

     "Capital Treatment Event" means the reasonable determination by the Company
that, as a result of any amendment to, or change (including any prospective
change) in, the laws (or any regulations thereunder) of the United States or any
political subdivision thereof or therein, or as a result of any official or
administrative pronouncement or action or judicial decision interpreting or
applying such laws or regulations, which amendment or change is effective or
such prospective change, pronouncement or decision is announced on or after the
date of the issuance of the Preferred Securities of the Trust, there is more
than an insubstantial risk of impairment of the Company's ability to treat the
Preferred Securities (or any substantial portion thereof) as "Tier I Capital"
(or the then equivalent thereof) for purposes of the capital adequacy guidelines
of the Federal Reserve, as then in effect and applicable to the Company.

          G.   The Company shall not be obligated to redeem or purchase any
Securities pursuant to any sinking fund or analogous provisions or at the option
of the Holder.

          H.   The Securities will be issued only in fully registered form and
the authorized minimum denomination of the Securities shall be $25.00 and any
integral multiple of $25.00 in excess thereof.

                                       3
<PAGE>
 
          I.   The Securities shall be denominated, and payments of principal of
(and premium, if any) and interest on the Securities of such series will be
made, in United States dollars.

          J.   The Securities shall be subject to the Events of Default
specified in Section 5.1, paragraphs (1) through (7), of the Indenture.

          K.   The portion of the principal amount of the Securities which shall
be payable upon declaration of acceleration of maturity thereof shall not be
other than the principal amount thereof, provided, that, if such acceleration is
declared by the Holders of at least 25% in aggregate liquidation amount of the
Preferred Securities then outstanding, then, upon such declaration of
acceleration, the Securities which shall be payable shall be the principal
amount thereof plus accrued interest (including any Additional Interest).

          L.   The Securities will be issued in fully registered form, without
coupons. The Securities will not be issued in bearer form.

          M.   The amount of payments of principal of and any premium or
interest on the Securities will not be determined with reference to an index.

          N.   The Securities shall not be issued in the form of a temporary
Global Security (as defined below).

          O.   The Securities will initially be in certificated form registered
in the name of the name of Wilmington Trust Company, as Property Trustee for the
Trust (the "Certificated Securities"). The Securities may, in the sole
discretion of the Company, be deposited with, and on behalf of, The Depository
Trust Company, New York, New York, as Depositary, and will be represented by a
global security (a "Global Security") registered in the name of a nominee of the
Depositary. If, and so long as the Depositary or its nominee is the registered
holder of any Global Security, the Depositary or its nominee, as the case may
be, will be considered the sole Holder of the Securities of such series
represented by such Global Security for all purposes under the Indenture and the
Securities. The Certificated Securities or the Global Securities, as the case
may be, shall bear no legends.

          P.   The Trustee shall be Paying Agent.

          Q.   The Securities will not be convertible into any other securities
or property of the Company.  The Securities of any series may not be exchanged
for Securities of any other series.

          R.   The Trust Agreement, the Amended and Restated Trust Agreement and
the Guarantee Agreement are in the forms attached hereto as Exhibits B, C and D
respectively.

                                       4
<PAGE>
 
          S.   The Securities are subordinate and subject in right of payment to
the prior payment in full of all amounts then due and payable in respect of all
Senior and Subordinated Debt, as provided in the Indenture.

          T.   The Securities shall have additional terms, which terms shall not
be inconsistent with the provisions of the Indenture.


     II.  Establishment of Forms of Securities Pursuant to Section 2.1 of
          ---------------------------------------------------------------
Indenture.
- --------- 

     It is hereby established pursuant to Section 2.1 of the Indenture that the
Securities shall be substantially in the form attached as Exhibit A hereto.

     III.  Order for the Authentication and Delivery of Securities Pursuant to
           -------------------------------------------------------------------
Section 3.3 of the Indenture.
- ---------------------------- 

     It is hereby ordered pursuant to Section 3.3 of the Indenture that the
Trustee authenticate, in the manner provided by the Indenture, Securities in the
aggregate principal amount of $20,618,550 registered in the name of Wilmington
Trust Company, as Property Trustee, which Securities have been heretofore duly
executed by the proper officers of the Company and delivered to you as provided
in the Indenture, and to deliver said authenticated Securities to Wilmington
Trust Company or its custodian on or before 9:30 a.m., Pacific Standard Time, on
March 31, 1997.

     IV.  Other Matters.
          ------------- 

     Attached as Exhibit E hereto are true and correct copies of resolutions
adopted by the Pricing Committee of the Board of Directors of the Company  at a
meeting on March 24, 1997.  Attached as Exhibit F hereto are true and correct
copies of resolutions adopted by the Board of Directors of the Company at a
meeting on February 22, 1997. Such resolutions have not been further amended,
modified or rescinded and remain in full force and effect; and such resolutions
(together with this Officers' Certificate) are the only resolutions or other
action adopted by the Company's Board of Directors or any committee thereof or
by any Authorized Officers relating to the offering and sale of the Securities.

     The undersigned have read the pertinent sections of the Indenture including
the related definitions contained therein.  The undersigned have examined the
resolutions adopted by the Board of Directors and the Pricing Committee of the
Board of Directors of the Company.  In the opinion of the undersigned, the
undersigned have made such examination or investigation as is necessary to
enable the undersigned to express an informed opinion as to whether or not the
conditions precedent to the establishment of (i) a series of Securities, (ii)
the forms of such Securities and (iii) authentication of such series of
Securities, contained in the Indenture have 

                                       5
<PAGE>
 
been complied with. In the opinion of the undersigned, such conditions have been
complied with.

                                       6
<PAGE>
 
     IN WITNESS WHEREOF, the undersigned have executed this Certificate this
31st day of March 1997.



                                    GREATER BAY BANCORP


                                    By:  /s/ David L. Kalkbrenner
                                         -------------------------------------
                                         David L. Kalkbrenner
                                         Chief Executive Officer

                                    By   /s/ Steven C. Smith
                                         -------------------------------------
                                         Steven C. Smith
                                         Executive Vice President, Chief 
                                         Operating Officer and Chief
                                         Financial Officer

                                       7

<PAGE>
 
                                                                     EXHIBIT 4.6

 
                              AMENDED AND RESTATED


                                TRUST AGREEMENT


                                     among


                       Greater Bay Bancorp, as Depositor,


                           Wilmington Trust Company,
                              as Property Trustee,


                           Wilmington Trust Company,
                              as Delaware Trustee,


                                      and


                    THE ADMINISTRATIVE TRUSTEES NAMED HEREIN


                           Dated as of March 31, 1997


                                 GBB CAPITAL I
<PAGE>
 
                                 GBB CAPITAL I

              Certain Sections of this Trust Agreement relating to
                        Sections 310 through 318 of the
                          Trust Indenture Act of 1939:
<TABLE>
<CAPTION>
 
            Trust Indenture             Trust Agreement
              Act Section                    Section
            ----------------             ----------------
 <S>            <C>                            <C>
  (S) 310        (a) (1)                        8.7
                 (a) (2)                        8.7
                 (a) (3)                        8.7
                 (a) (4)                        2.7 (a) (ii)
                 (b)
  (S) 311        (a)                            8.13
                 (b)                            8.13
  (S) 312        (a)                            5.7
                 (b)                            5.7
                 (c)                            5.7
  (S) 313        (a)                            8.14 (a)
                 (a) (4)                        8.14 (b)
                 (b)                            8.14 (b)
                 (c)                           10.8
                 (d)                            8.14 (c)
  (S) 314        (a)                            8.15
                 (b)                            Not Applicable
                 (c) (1)                        8.16
                 (c) (2)                        8.16
                 (c) (3)                        Not Applicable
                 (d)                            Not Applicable
                 (e)                            1.1, 8.16
  (S) 315        (a)                            8.1 (a), 8.3 (a)
                 (b)                            8.2, 10.8
                 (c)                            8.1 (a)
                 (d)                            8.1, 8.3
                 (e)                            Not Applicable
  (S) 316        (a)                            Not Applicable
                 (a) (1) (A)                    Not Applicable
                 (a) (1) (B)                    Not Applicable
                 (a) (2)                        Not Applicable 
                 (b)                            5.14
                 (c)                            6.7
  (S) 317        (a) (1)                        Not Applicable
                 (a) (2)                        Not Applicable 
                 (b)                            5.9
  (S) 318        (a)                           10.10
- ------------
</TABLE>
Note: This reconciliation and tie sheet shall not, for any purpose, be deemed to
      be a part of the Trust Agreement.
<PAGE>
 
<TABLE>
<CAPTION>

                               TABLE OF CONTENTS
                               -----------------
                                                                                                                   PAGE
                                                                                                                   ----
<S>                                                                                                               <C>
ARTICLE I.  Defined Terms...........................................................................................  1

Section 1.1.    Definitions.........................................................................................  1

ARTICLE II.  Establishment of the Trust............................................................................. 10

     Section 2.1.    Name........................................................................................... 10
     Section 2.2.    Office of the Delaware Trustee; Principal Place of Business.................................... 10
     Section 2.3.    Initial Contribution of Trust Property; Organizational Expenses................................ 10
     Section 2.4.    Issuance of the Preferred Securities........................................................... 11
     Section 2.5.    Issuance of the Common Securities; Subscription and Purchase of Debentures..................... 11
     Section 2.6.    Declaration of Trust........................................................................... 11
     Section 2.7.    Authorization to Enter into Certain Transactions............................................... 12
     Section 2.8.    Assets of Trust................................................................................ 15
     Section 2.9.    Title to Trust Property........................................................................ 15

ARTICLE III.  Payment Account....................................................................................... 15

     Section 3.1.    Payment Account................................................................................ 15

ARTICLE IV.  Distributions; Redemption.............................................................................. 16

     Section 4.1.    Distributions.................................................................................. 16
     Section 4.2.    Redemption..................................................................................... 17
     Section 4.3.    Subordination of Common Securities............................................................. 19
     Section 4.4.    Payment Procedures............................................................................. 19
     Section 4.5.    Tax Returns and Reports........................................................................ 19
     Section 4.6.1   Payment of Taxes, Duties, Etc. of the Trust.................................................... 20
     Section 4.7.    Payments under Indenture or Pursuant to Direct Actions......................................... 20

ARTICLE V.    Trust Securities Certificates......................................................................... 20

     Section 5.1.    Initial Ownership.............................................................................. 20
     Section 5.2.1   The Trust Securities Certificates.............................................................. 20
     Section 5.3.    Execution and Delivery of Trust Securities Certificates........................................ 21
     Section 5.4.    Registration of Transfer and Exchange of Preferred Securities Certificates..................... 21

     Section 5.5.    Mutilated, Destroyed, Lost or Stolen Trust Securities Certificates............................. 22
     Section 5.6.    Persons Deemed Securityholders................................................................. 22
     Section 5.7.    Access to List of Securityholders' Names and Addresses......................................... 22
     Section 5.8.    Maintenance of Office or Agency................................................................ 23
     Section 5.9.    Appointment of Paying Agent.................................................................... 23
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                                    PAGE
                                                                                                                    ----
   <S>                                                                                                              <C>
     Section 5.10.   Ownership of Common Securities by Depositor.................................................... 24
     Section 5.11.   Book-Entry Preferred Securities Certificates; Common Securities Certificate.................... 24
     Section 5.12.   Notices to Clearing Agency..................................................................... 25
     Section 5.13.   Definitive Preferred Securities Certificates................................................... 25
     Section 5.14.   Rights of Securityholders...................................................................... 25

ARTICLE VI.  Acts of Securityholders; Meetings; Voting.............................................................. 27

     Section 6.1.    Limitations on Voting Rights................................................................... 27
     Section 6.2.    Notice of Meetings............................................................................. 28
     Section 6.3.    Meetings of Preferred Securityholders.......................................................... 28
     Section 6.4.    Voting Rights.................................................................................. 29
     Section 6.5.    Proxies, etc................................................................................... 29
     Section 6.6.    Securityholder Action by Written Consent....................................................... 29
     Section 6.7.    Record Date for Voting and Other Purposes...................................................... 29
     Section 6.8.    Acts of Securityholders........................................................................ 30
     Section 6.9.    Inspection of Records.......................................................................... 31

ARTICLE VII.  Representations and Warranties........................................................................ 31

     Section 7.1.     Representations and Warranties of the Bank.................................................... 31
     Section 7.2.     Representations and Warranties of Depositor................................................... 32

ARTICLE VIII.  The Trustees......................................................................................... 32

     Section 8.1.     Certain Duties and Responsibilities........................................................... 32
     Section 8.2.     Certain Notices............................................................................... 34
     Section 8.3.     Certain Rights of Property Trustee............................................................ 34
     Section 8.4.     Not Responsible for Recitals or Issuance of Securities........................................ 36
     Section 8.5.     May Hold Securities........................................................................... 36
     Section 8.6.     Compensation; Indemnity; Fees................................................................. 36
     Section 8.7.     Corporate Property Trustee Required; Eligibility of Trustees.................................. 37
     Section 8.8.     Conflicting Interests......................................................................... 38
     Section 8.9.     Co-Trustees and Separate Trustee.............................................................. 38
     Section 8.10.    Resignation and Removal; Appointment of Successor............................................. 40
     Section 8.11.    Acceptance of Appointment by Successor........................................................ 41
     Section 8.12.    Merger, Conversion, Consolidation or Succession to Business................................... 42
     Section 8.13.    Preferential Collection of Claims Against Depositor or Trust.................................. 42
     Section 8.14.    Reports by Property Trustee................................................................... 43
     Section 8.15.    Reports to the Property Trustee............................................................... 43
     Section 8.16.    Evidence of Compliance with Conditions Precedent.............................................. 43
     Section 8.17.    Number of Trustees............................................................................ 44
     Section 8.18.    Delegation of Power........................................................................... 44
     Section 8.19.    Voting........................................................................................ 44
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                                    PAGE
                                                                                                                    ----
<S>                                                                                                                 <C>
ARTICLE IX.  Termination, Liquidation and Merger..................................................................   45

     Section 9.1.     Termination Upon Expiration Date............................................................   45
     Section 9.2.     Early Termination...........................................................................   45
     Section 9.3.     Termination.................................................................................   45
     Section 9.4.     Liquidation.................................................................................   45
     Section 9.5.     Mergers, Consolidations, Amalgamations or Replacements of the Trust.........................   47

ARTICLE X.  Miscellaneous Provisions..............................................................................   48

     Section 10.1.    Limitation of Rights of Securityholders.....................................................   48
     Section 10.2.    Amendment...................................................................................   48
     Section 10.3.    Counterparts................................................................................   49
     Section 10.4.    Separability................................................................................   49
     Section 10.5.    Governing Law...............................................................................   49
     Section 10.6.    Payments Due on Non-Business Day............................................................   50
     Section 10.7.    Successors..................................................................................   50
     Section 10.8.    Headings....................................................................................   50
     Section 10.9.    Reports, Notices and Demands................................................................   50
     Section 10.10.   Agreement Not to Petition...................................................................   51
     Section 10.11.   Trust Indenture Act; Conflict with Trust Indenture Act......................................   51
     Section 10.12.   Acceptance of Terms of Trust Agreement, Guarantee and Indenture.............................   51
</TABLE>
<PAGE>
 
     AMENDED AND RESTATED TRUST AGREEMENT (this "Trust Agreement"), dated as of
March 31, 1997, among (i) Greater Bay Bancorp, a California corporation
(including any successors or assigns, the "Depositor"), (ii) Wilmington Trust
Company, a Delaware banking corporation duly organized and existing under the
laws of the State of Delaware, as property trustee, (in such capacity, the
"Property Trustee" and, in its separate corporate capacity and not in its
capacity as Property Trustee, the "Bank"), (iii) Wilmington Trust Company, a
Delaware banking corporation organized under the laws of the State of Delaware,
as Delaware trustee (the "Delaware Trustee"), (iv) David L. Kalkbrenner, an
individual, Steven C. Smith, an individual, and James R. Ramsey, an individual,
each of whose address is c/o Greater Bay Bancorp, 2860 West Bayshore Road, Palo
Alto, California 94303 (each an "Administrative Trustee" and collectively the
"Administrative Trustees") (the Property Trustee, the Delaware Trustee and the
Administrative Trustees are referred to collectively herein as the "Trustees")
and (v) the several Holders, as hereinafter defined.

                                   WITNESSETH

     WHEREAS, the Depositor, the Delaware Trustee and David L. Kalkbrenner and
Steven C. Smith and James R. Ramsey, each as an Administrative Trustee, have
heretofore duly declared and established a business trust pursuant to the
Delaware Business Trust Act by the entering into that certain Trust Agreement,
dated as of February 28, 1997 (the "Original Trust Agreement"), and by the
execution and filing by the Delaware Trustee with the Secretary of State of the
State of Delaware of the Certificate of Trust, filed on March 3, 1997, attached
as Exhibit A; and

     WHEREAS, the Depositor and the Trustees desire to amend and restate the
Original Trust Agreement in its entirety as set forth herein to provide for,
among other things, (i) the issuance of the Common Securities by the Trust to
the Depositor, (ii) the issuance and sale of the Preferred Securities by the
Trust pursuant to the Underwriting Agreement, (iii) the acquisition by the Trust
from the Depositor of all of the right, title and interest in the Debentures and
(iv) the appointment of the Administrative Trustees;

     NOW THEREFORE, in consideration of the agreements and obligations set forth
herein and for other good and valuable consideration, the sufficiency of which
is hereby acknowledged, each party, for the benefit of the other parties and for
the benefit of the Securityholders, hereby amends and restates the Original
Trust Agreement in its entirety and agrees as follows:


                                   ARTICLE I

                                 DEFINED TERMS

      Section 1.1.  Definitions.

     For all purposes of this Trust Agreement, except as otherwise expressly
provided or unless the context otherwise requires:

                                       1
<PAGE>
 
     (a) the terms defined in this Article have the meanings assigned to them in
this Article and include the plural as well as the singular;

     (b) all other terms used herein that are defined in the Trust Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;

     (c) unless the context otherwise requires, any reference to an "Article" or
a "Section" refers to an Article or a Section, as the case may be, of this Trust
Agreement; and

     (d) the words "herein", "hereof" and "hereunder" and other words of similar
import refer to this Trust Agreement as a whole and not to any particular
Article, Section or other subdivision.

     "Act" has the meaning specified in Section 6.8.

     "Additional Amount" means, with respect to Trust Securities of a given
Liquidation Amount and/or a given period, the amount of Additional Interest (as
defined in the Indenture) paid by the Depositor on a Like Amount of Debentures
for such period.

     "Additional Sums" has the meaning specified in Section 10.6 of the
Indenture.

     "Administrative Trustee" means each of the Persons identified as an
"Administrative Trustee" in the preamble to this Trust Agreement solely in such
Person's capacity as Administrative Trustee of the Trust formed and continued
hereunder and not in such Person's individual capacity, or such Administrative
Trustee's successor in interest in such capacity, or any successor trustee
appointed as herein provided.

     "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person.  For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

     "Bank" has the meaning specified in the preamble to this Trust Agreement.

     "Bankruptcy Event" means, with respect to any Person:

     (a) the entry of a decree or order by a court having jurisdiction in the
premises judging such Person a bankrupt or insolvent, or approving as properly
filed a petition seeking reorganization, arrangement, adjudication or
composition of or in respect of such Person under any applicable Bankruptcy Law,
or appointing a receiver, liquidator, assignee, trustee, sequestrator (or other
similar official) of such Person or of any substantial part of its property or
ordering the winding up or liquidation of its affairs, and the continuance of
any such decree or order unstayed and in effect for a period of 90 consecutive
days; or

                                       2
<PAGE>
 
     (b) the institution by such Person of proceedings to be adjudicated a
bankrupt or insolvent, or the consent by it to the institution of bankruptcy or
insolvency proceedings against it, or the filing by it of a petition or answer
or consent seeking reorganization or relief under any applicable Bankruptcy Law,
or the consent by it to the filing of any such petition or to the appointment of
a receiver, liquidator, assignee, trustee, sequestrator (or similar official) of
such Person or of any substantial part of its property, or the making by it of
an assignment for the benefit of creditors, or the admission by it in writing of
its inability to pay its debts generally as they become due and its willingness
to be adjudicated a bankrupt, or the taking of corporate action by such Person
in furtherance of any such action.

     "Bankruptcy Law" means any Federal or state bankruptcy, insolvency,
reorganization or similar law.

     "Board Resolution" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Depositor to have been duly adopted by the
Depositor's Board of Directors, or such committee of the Board of Directors or
officers of the Depositor to which authority to act on behalf of the Board of
Directors has been delegated, and to be in full force and effect on the date of
such certification, and delivered to the appropriate Trustees.

     "Book-Entry Preferred Securities Certificates" means a beneficial interest
in the Preferred Securities Certificates, ownership and transfers of which shall
be made through book entries by a Clearing Agency as described in Section 5.11.

     "Business Day" means a day other than (a) a Saturday or Sunday, (b) a day
on which banking institutions in the State of California are authorized or
required by law or executive order to remain closed, or (c) a day on which the
Property Trustee's Corporate Trust Office or the Corporate Trust Office of the
Debenture Trustee is closed for business.

     "Certificate Depository Agreement" means the agreement among the Trust, the
Depositor and The Depository Trust Company, as the initial Clearing Agency,
dated as of the Closing Date, relating to the Preferred Securities Certificates,
substantially in the form attached as Exhibit B, as the same may be amended and
supplemented from time to time.

     "Certificate of Trust" means the certificate of trust filed with the
Secretary of State of the State of Delaware with Respect to the Trust, as
amended or restated from time to time.

     "Clearing Agency" means an organization registered as a "clearing agency"
pursuant to Section 17A of the Exchange Act.  The Depository Trust Company will
be the initial Clearing Agency.

     "Clearing Agency Participant" means a broker, dealer, bank, other financial
institution or other Person for whom from time to time a Clearing Agency effects
book-entry transfers and pledges of securities deposited with the Clearing
Agency.

     "Closing Date" means the date of execution and delivery of this Trust
Agreement.

                                       3
<PAGE>
 
     "Code" means the Internal Revenue Code of 1986, as amended.

     "Commission" means the Securities and Exchange Commission, as from time to
time constituted, created under the Exchange Act, as amended, or, if at any time
after the execution of this instrument such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties at such time.

     "Common Security" means an undivided beneficial interest in the assets of
the Trust, having a Liquidation Amount of $25 and having the rights provided
therefor in this Trust Agreement, including the right to receive Distributions
and a Liquidation Distribution as provided herein.

     "Common Securities Certificate" means a certificate evidencing ownership of
Common Securities, substantially in the form attached as Exhibit C.

     "Corporate Trust Office" means (i) when used with respect to the Property
Trustee, the principal office of the Property Trustee located at Rodney Square
North, 1100 North Market Street, Wilmington, Delaware 19890-0001, Attention:
Corporate Trust Administration, and (ii) when used with respect to the Debenture
Trustee, the principal office of the Debenture Trustee located at Rodney Square
North, 1100 North Market Street, Wilmington, Delaware 19890-0001, Attention:
Corporate Trust Administration.

     "Debenture Event of Default" means an "Event of Default" as defined in the
Indenture.

     "Debenture Redemption Date" means, with respect to any Debentures to be
redeemed under the Indenture, the date fixed for redemption under the Indenture.

     "Debenture Tax Event" means a "Tax Event" as defined in the Indenture.

     "Debenture Trustee" means Wilmington Trust Company, a Delaware banking
corporation organized under the laws of the State of Delaware and any successor
thereto, as trustee under the Indenture.

     "Debentures" means the aggregate principal amount of the Depositor's 9.75%
Junior Subordinated Deferrable Interest Debentures, issued pursuant to the
Indenture.

     "Definitive Preferred Securities Certificates" means either or both (as the
context requires) of (a) Preferred Securities Certificates issued as Book-Entry
Preferred Securities Certificate as provided in Section 5.11(a) and (b)
Preferred Securities Certificates issued in certificated, fully registered form
as provided in Section 5.13.

     "Delaware Business Trust Act" means Chapter 38 of Title 12 of the Delaware
Code, 12 Del. C. ((S)) 3801, et seq., as it may be amended from time to time.

     "Delaware Trustee" means the Person identified as the "Delaware Trustee" in
the preamble to this Trust Agreement solely in its capacity as Delaware Trustee
of the Trust formed and continued 

                                       4
<PAGE>
 
hereunder and not in its individual capacity, or its successor in interest in
such capacity, or any successor trustee appointed as herein provided.

     "Depositor" has the meaning specified in the preamble to this Trust
Agreement.

     "Distribution Date" has the meaning specified in Section 4.1(a).

     "Distributions" means amounts payable in respect of the Trust Preferred
Securities as provided in Section 4.1.

     "Early Termination Event" has the meaning specified in Section 9.2.

     "Event of Default" means any one of the following events (whatever the
reason for such Event of Default and whether it shall be voluntary or
involuntary or be effected by operation of law or pursuant to any judgment,
decree or order of any court or any order, rule or regulation of any
administrative or governmental body):

     (a) the occurrence of a Debenture Event of Default; or

     (b) default by the Trust in the payment of any Distribution when it becomes
due and payable, and continuation of such default for a period of 30 days; or

     (c) default by the Trust in the payment of any Redemption Price of any
Trust Security when it becomes due and payable; or

     (d) default in the performance, or breach, in any material respect, of any
covenant or warranty of the Property Trustee in this Trust Agreement (other than
a covenant or warranty a default in the performance or breach of which is dealt
with in clause (b) or (c) above) and continuation of such default or breach for
a period of 60 days after there has been given, by registered or certified mail,
to the defaulting Property Trustee by the Holders of at least 25% in aggregate
liquidation preference of the Outstanding Preferred Securities a written notice
specifying such default or breach and requiring it to be remedied and stating
that such notice is a "Notice of Default" hereunder; or

     (e) the occurrence of a Bankruptcy Event with respect to the Property
Trustee and the failure by the Depositor to appoint a successor Property Trustee
within 60 days thereof.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     "Expense Agreement" means the Agreement as to Expenses and Liabilities
between the Depositor and the Trust, substantially in the form attached as
Exhibit D, as amended from time to time.

     "Expiration Date" has the meaning specified in Section 9.1.

                                       5
<PAGE>
 
     "Guarantee" means the Guarantee Agreement executed and delivered by the
Depositor and Wilmington Trust Company, as trustee, contemporaneously with the
execution and delivery of this Trust Agreement, for the benefit of the holders
of the Preferred Securities, as amended from time to time.

     "Holder" means a Securityholder.

     "Indenture" means the Junior Subordinated Indenture, dated as of March 31,
1997, between the Depositor and the Debenture Trustee, as trustee, as amended or
supplemented from time to time.

     "Investment Company Event" means the receipt by the Depositor and the Trust
of an Opinion of Counsel experienced in such matters to the effect that, as a
result of the occurrence of a change in law or regulation or a change in
interpretation or application of law or regulation by any legislative body,
court, governmental agency or regulatory authority (a "Change in Investment
Company Act Law"), the Trust is or will be considered an "investment company"
that is required to be registered under the Investment Company Act, which Change
in Investment Company Act Law becomes effective on or after the date or original
issuance of the Preferred Securities under this Trust Agreement.

     "Lien" means any lien, pledge, charge, encumbrance, mortgage, deed of
trust, adverse ownership interest, adverse claim, hypothecation, assignment,
security interest or preference, priority or other security agreement or
preferential arrangement of any kind or nature whatsoever.

     "Like Amount" means (a) with respect to a redemption of Trust Securities,
Trust Securities having a Liquidation Amount equal to the principal amount of
Debentures to be contemporaneously redeemed in accordance with the Indenture the
proceeds of which will be used to pay the Redemption Price of such Trust
Securities, and (b) with respect to a distribution of Debentures to Holders of
Trust Securities in connection with a dissolution or liquidation of the Trust,
Debentures having a principal amount equal to the Liquidation Amount of the
Trust Securities of the Holder to whom such Debentures are distributed.

     "Liquidation Amount" means the stated amount of $25 per Trust Security.

     "Liquidation Date" means the date on which Debentures are to be distributed
to Holders of Trust Securities in connection with a termination and liquidation
of the Trust pursuant to Section 9.4(a).

     "Liquidation Distribution" has the meaning specified in Section 9.4(d).

     "1940 Act" means the Investment Company Act of 1940, as amended.

     "Officers' Certificate" means a certificate signed by the Chairman and
Chief Executive Officer, President or a Vice President, and by the Treasurer, an
Associate Treasurer, an Assistant Treasurer, the Controller, the Secretary or an
Assistant Secretary, of the Depositor, and delivered to the appropriate Trustee.
One of the officers signing an Officers' Certificate given pursuant to Section

                                       6
<PAGE>
 
8.16 shall be the principal executive, financial or accounting officer of the
Depositor. Any Officers' Certificate delivered with respect to compliance with a
condition or covenant provided for in this Trust Agreement shall include:

     (a) a statement that each officer signing the Officers' Certificate has
read the covenant or condition and the definitions relating thereto;

     (b) a brief statement of the nature and scope of the examination or
investigation undertaken by each officer in rendering the Officers' Certificate;

     (c) a statement that each such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such officer
to express an informed opinion as to whether or not such covenant or condition
has been complied with; and

     (d) a statement as to whether, in the opinion of each such officer, such
condition or covenant has been complied with.

     "Opinion of Counsel" means a written opinion of counsel, who may be counsel
for the Trust, the Property Trustee, the Delaware Trustee or the Depositor, but
not an employee of any thereof, and who shall be reasonably acceptable to the
Property Trustee.

     "Original Trust Agreement" has the meaning specified in the recitals to
this Trust Agreement.

     "Outstanding", when used with respect to Trust Securities, means, as of the
date of determination, all Trust Securities theretofore executed and delivered
under this Trust Agreement, except:

     (a) Trust Securities theretofore canceled by the Property Trustee or
delivered to the Property Trustee for cancellation;

     (b) Trust Securities for whose payment or redemption money in the necessary
amount has been theretofore deposited with the Property Trustee or any Paying
Agent for the Holders of such Trust Securities; provided that, if such Trust
Securities are to be redeemed, notice of such redemption has been duly given
pursuant to this Trust Agreement; and

     (c) Trust Securities which have been paid or in exchange for or in lieu of
which other Trust Securities have been executed and delivered pursuant to
Sections 5.4, 5.5, 5.11 and 5.13; provided, however, that in determining whether
the Holders of the requisite Liquidation Amount of the Outstanding Preferred
Securities have given any request, demand, authorization, direction, notice,
consent or waiver hereunder, Preferred Securities owned by the Depositor, any
Trustee or any Affiliate of the Depositor or any Trustee shall be disregarded
and deemed not to be Outstanding, except that (a) in determining whether any
Trustee shall be protected in relying upon any such request, demand,
authorization, direction, notice, consent or waiver, only Preferred Securities
that such Trustee knows to be so owned shall be so disregarded and (b) the
foregoing shall not apply at 

                                       7
<PAGE>
 
any time when all of the outstanding Preferred Securities are owned by the
Depositor, one or more of the Trustees and/or any such Affiliate. Preferred
Securities so owned which have been pledged in good faith may be regarded as
Outstanding if the pledgee establishes to the satisfaction of the Administrative
Trustees the pledgee's right so to act with respect to such Preferred Securities
and that the pledgee is not the Depositor or any Affiliate of the Depositor.

     "Owner" means each Person who is the beneficial owner of a Book-Entry
Preferred Securities Certificate as reflected in the records of the Clearing
Agency or, if a Clearing Agency Participant is not the Owner, then as reflected
in the records of a Person maintaining an account with such Clearing Agency
(directly or indirectly, in accordance with the rules of such Clearing Agency).

     "Paying Agent" means any paying agent or co-paying agent appointed pursuant
to Section 5.9 and shall initially be the Bank.

     "Payment Account" means a segregated non-interest-bearing corporate trust
account maintained by the Property Trustee with the Bank in its trust department
for the benefit of the Securityholders in which all amounts paid in respect of
the Debentures will be held and from which the Property Trustee, through the
Paying Agent, shall make payments to the Securityholders in accordance with
Sections 4.1 and 4.2.

     "Person" means any individual, corporation, partnership, joint venture,
trust, limited liability company or corporation, unincorporated organization or
government or any agency or political subdivision thereof.

     "Preferred Security" means an undivided beneficial interest in the assets
of the Trust designated "9.75% Cumulative Trust Preferred Securities", having a
Liquidation Amount of $25 and having the rights provided therefor in this Trust
Agreement, including the right to receive Distributions and a Liquidation
Distribution as provided herein.

     "Preferred Securities Certificate" means a certificate evidencing ownership
of Preferred Securities, substantially in the form attached as Exhibit E.

     "Property Trustee" means the Person identified as the "Property Trustee" in
the preamble to this Trust Agreement solely in its capacity as Property Trustee
of the Trust heretofore formed and continued hereunder and not in its individual
capacity, or its successor in interest in such capacity, or any successor
property trustee appointed as herein provided.

     "Purchase Agreement" means that certain Purchase Agreement, dated as of
March 24, 1997, among the Trust, the Depositor and Piper Jaffray Inc.

     "Redemption Date" means, with respect to any Trust Security to be redeemed,
the date fixed for such redemption by or pursuant to this Trust Agreement;
provided that each Debenture Redemption Date and the stated maturity of the
Debentures shall be a Redemption Date for a Like Amount of Trust Preferred
Securities.

                                       8
<PAGE>
 
     "Redemption Price" means, with respect to any Trust Security, the
Liquidation Amount of such Trust Security, plus accumulated and unpaid
Distributions to the Redemption Date, plus the related amount of the premium, if
any, paid by the Depositor upon the concurrent redemption of a Like Amount of
Debentures, allocated on a pro rata basis (based on Liquidation Amounts) among
the Trust Preferred Securities.

     "Relevant Trustee" shall have the meaning specified in Section 8.10.

     "Securities Register" and "Securities Registrar" have the respective
meanings specified in Section 5.4.

     "Securityholder" means a Person in whose name a Trust Security is
registered in the Securities Register; any such Person shall be deemed to be a
beneficial owner within the meaning of the Delaware Business Trust Act.

     "Tax Event" means the receipt by the Trust of an Opinion of Counsel
experienced in such matters to the effect that, as a result of any amendment to,
or change (including any announced prospective change) in, the laws (or any
regulations thereunder) of the United States or any political subdivision or
taxing authority thereof or therein, or as a result of any official
administrative pronouncement or judicial decision interpreting or applying such
laws or regulations, which amendment or change is effective or which
pronouncement or decision is announced on or after the date of issuance of the
Preferred Securities under this Trust Agreement, there is more than an
insubstantial risk that (i) the Trust is, or will be within 90 days after the
date of such Opinion of Counsel, subject to United States Federal income tax
with respect to income received or accrued on the Debentures, (ii) interest
payable by the Depositor on the Debentures is not, or within 90 days after the
date of such Opinion of Counsel, will not be, deductible by the Depositor, in
whole or in part, for United States Federal income tax purposes or (iii) the
Trust is, or will be within 90 days after the date of such Opinion of Counsel,
subject to more than a de minimis amount of other taxes, duties, assessments or
other governmental charges.

     "Trust" means the Delaware business trust created and continued hereby and
identified on the cover page to this Trust Agreement.

     "Trust Agreement" means this Amended and Restated Trust Agreement, as the
same may be modified, amended or supplemented in accordance with the applicable
provisions hereof, including (i) all exhibits hereto and (ii) for all purposes
of this Trust Agreement and any such modification, amendment or supplement, the
provisions of the Trust Indenture Act that are deemed to be a part of and govern
this Trust Agreement and any such modification, amendment or supplement,
respectively.

     "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force at
the date as of which this instrument was executed; provided, however, that in
the event the Trust Indenture Act of 1939 is amended after such date, "Trust
Indenture Act" means, to the extent required by any such amendment, the Trust
Indenture Act of 1939 as so amended.

                                       9
<PAGE>
 
     "Trust Property" means (a) the Debentures, (b) the rights of the Property
Trustee under the Guarantee, (c) any cash on deposit in, or owing to, the
Payment Account and (d) all proceeds and rights in respect of the foregoing and
any other property and assets for the time being held or deemed to be held by
the Property Trustee pursuant to the trusts of this Trust Agreement.

     "Trust Security" means any one of the Common Securities or the Preferred
Securities.

     "Trust Securities Certificate" means any one of the Common Securities
Certificates or the Preferred Securities Certificates.

     "Trustees" means, collectively, the Property Trustee, the Delaware Trustee
and the Administrative Trustees.


                                  ARTICLE II.

                           ESTABLISHMENT OF THE TRUST

      Section 2.1.  Name.

     The Trust continued hereby shall be known as "GBB Capital I," as such name
may be modified from time to time by the Administrative Trustees following
written notice to the Holders of Trust Securities and the other Trustees, in
which name the Trustees may engage in the transactions contemplated hereby, make
and execute contracts and other instruments on behalf of the Trust and sue and
be sued.

      Section 2.2.  Office of the Delaware Trustee; Principal Place of Business.

     The address of the Delaware Trustee in the State of Delaware is c/o
Wilmington Trust Company, 1100 North Market Street, Wilmington, Delaware 19890-
0001, Attention: Corporate Trust Administration, or such other address in the
State of Delaware as the Delaware Trustee may designate by written notice to the
Securityholders and the Depositor.  The principal executive office of the Trust
is c/o Greater Bay Bancorp, 2860 West Bayshore Road, Palo Alto, California,
94303.

      Section 2.3.  Initial Contribution of Trust Property; Organizational
Expenses.

     The Trustees acknowledges receipt in trust from the Depositor in connection
with the Original Trust Agreement of the sum of $10, which constituted the
initial Trust Property.  The Depositor shall pay organizational expenses of the
Trust as they arise or shall, upon request of any Trustee, promptly reimburse
such Trustee for any such expenses paid by such Trustee.  The Depositor shall
make no claim upon the Trust Property for the payment of such expenses.

                                      10
<PAGE>
 
     Section 2.4.  Issuance of the Preferred Securities.

     On March 24, 1997 the Depositor and an Administrative Trustee, on behalf of
the Trust and pursuant to the Original Trust Agreement, executed and delivered
the Purchase Agreement. Contemporaneously with the execution and delivery of
this Trust Agreement, an Administrative Trustee, on behalf of the Trust, shall
execute in accordance with Section 5.2 and deliver to the Underwriter named in
the Purchase Agreement, Preferred Securities Certificates, registered in the
name of the nominee of the initial Clearing Agency, in an aggregate amount of
800,000 Preferred Securities having an aggregate Liquidation Amount of
$20,000,000, against receipt of such aggregate purchase price of such Preferred
Securities of $20,000,000, which amount the Administrative Trustee shall
promptly deliver to the Property Trustee.

     Section 2.5.  Issuance of the Common Securities; Subscription and Purchase
of Debentures.

     Contemporaneously with the execution and delivery of this Trust Agreement,
an Administrative Trustee, on behalf of the Trust, shall execute in accordance
with Section 5.2 and deliver to the Depositor Common Securities Certificates,
registered in the name of the Depositor, in an aggregate amount of 24,742 Common
Securities having an aggregate Liquidation Amount of $618,550 against payment by
the Depositor of such amount, which amount such Administrative Trustee shall
promptly deliver to the Property Trustee.  Contemporaneously therewith, an
Administrative Trustee, on behalf of the Trust, shall subscribe to and purchase
from the Depositor Debentures, registered in the name of the Trust and having an
aggregate principal amount equal to $20,618,550, and, in satisfaction of the
purchase price for such Debentures, the Property Trustee, on behalf of the
Trust, shall deliver to the Depositor the sum of $20,618,550 (being the sum of
the amounts delivered to the Property Trustee pursuant to (i) the second
sentence of Section 2.4 and (ii) the first sentence of this Section 2.5).

     Section 2.6.  Declaration of Trust.

     The exclusive purposes and functions of the Trust are (a) to issue and sell
Trust Securities and use the proceeds from such sale to acquire the Debentures,
and (b) to engage in those activities necessary, advisable or incidental
thereto. The Depositor hereby appoints the Trustees as trustees of the Trust, to
have all the rights, powers and duties to the extent set forth herein, and the
Trustees hereby accept such appointment. The Property Trustee hereby declares
that it will hold the Trust Property in trust upon and subject to the conditions
set forth herein for the benefit of the Trust and the Securityholders. The
Administrative Trustees shall have all rights, powers and duties set forth
herein and in accordance with applicable law with respect to accomplishing the
purposes of the Trust. The Delaware Trustee shall not be entitled to exercise
any powers, nor shall the Delaware Trustee have any of the duties and
responsibilities, of the Property Trustee or the Administrative Trustees set
forth herein. The Delaware Trustee shall be one of the Trustees of the Trust for
the sole and limited purpose of fulfilling the requirements of Section 3807 of
the Delaware Business Trust Act.

                                      11
<PAGE>
 
     Section 2.7.  Authorization to Enter into Certain Transactions.

     (a) The Trustees shall conduct the affairs of the Trust in accordance with
the terms of this Trust Agreement. Subject to the limitations set forth in
paragraph (b) of this Section and Section 2.6, and in accordance with the
following provisions (i) and (ii), the Trustees shall have the authority to
enter into all transactions and agreements determined by the Trustees to be
appropriate in exercising the authority, express or implied, otherwise granted
to the Trustees under this Trust Agreement, and to perform all acts in
furtherance thereof, including without limitation, the following:

         (i) As among the Trustees, each Administrative Trustee shall have the
power and authority to act on behalf of the Trust with respect to the following
matters:

            (A) the issuance and sale of the Trust Securities;

            (B) to cause the Trust to enter into, and to execute, deliver and
          perform on behalf of the Trust, the Expense Agreement and the
          Certificate Depository Agreement and such other agreements as may be
          necessary or desirable in connection with the purposes and function of
          the Trust;

            (C) assisting in the registration of the Preferred Securities under
          the Securities Act of 1933, as amended, and under state securities or
          blue sky laws, and the qualification of this Trust Agreement as a
          trust indenture under the Trust Indenture Act;

            (D) assisting in the listing of the Preferred Securities upon such
          securities exchange or exchanges as shall be determined by the
          Depositor and the registration of the Preferred Securities under the
          Securities Exchange Act of 1934, as amended, and the preparation and
          filing of all periodic and other reports and other documents pursuant
          to the foregoing;

            (E) the sending of notices (other than notices of default) and other
          information regarding the Trust Securities and the Debentures to the
          Securityholders in accordance with this Trust Agreement;

            (F) the appointment of a Paying Agent, authenticating agent and
          Securities Registrar in accordance with this Trust Agreement;

            (G) registering transfer of the Trust Securities in accordance with
          this Trust Agreement;

            (H) to the extent provided in this Trust Agreement, the winding up
          of the affairs of and liquidation of the Trust and the preparation,
          execution and filing of the certificate of cancellation with the
          Secretary of State of the State of Delaware;

                                      12
<PAGE>
 
            (I) unless otherwise determined by the Depositor, the Property
          Trustee or the Administrative Trustees, or as otherwise required by
          the Delaware Business Trust Act or the Trust Indenture Act, to execute
          on behalf of the Trust (either acting alone or together with any or
          all of the Administrative Trustees) any documents that the
          Administrative Trustees have the power to execute pursuant to this
          Trust Agreement; and

            (J) the taking of any action incidental to the foregoing as the
          Trustees may from time to time determine is necessary or advisable to
          give effect to the terms of this Trust Agreement for the benefit of
          the Securityholders (without consideration of the effect of any such
          action on any particular Securityholder).

          (ii) As among the Trustees, the Property Trustee shall have the power,
     duty and authority to act on behalf of the Trust with respect to the
     following matters:

            (A) the establishment of the Payment Account;

            (B) the receipt of the Debentures;

            (C) the collection of interest, principal and any other payments
          made in respect of the Debentures in the Payment Account;

            (D) the distribution through the Paying Agent of amounts owed to the
          Securityholders in respect of the Trust Securities;

            (E) the exercise of all of the rights, powers and privileges of a
          holder of the Debentures;

            (F) the sending of notices of default and other information
          regarding the Trust Securities and the Debentures to the
          Securityholders in accordance with this Trust Agreement;

            (G) the distribution of the Trust Property in accordance with the
          terms of this Trust Agreement;

            (H) to the extent provided in this Trust Agreement, the winding up
          of the affairs of and liquidation of the Trust and the preparation,
          execution and filing of the certificate of cancellation with the
          Secretary of State of the State of Delaware;

            (I) after an Event of Default (other than under paragraph (b), (c),
          (d) or (e) of the definition of such term if such Event of Default is
          by or with respect to the Property Trustee) the taking of any action
          incidental to the foregoing as the Property Trustee may from time to
          time determine is necessary or advisable to give effect to the terms
          of this Trust Agreement and protect and conserve the Trust Property
          for the 

                                      13
<PAGE>
 
          benefit of the Securityholders (without consideration of the effect of
          any such action on any particular Securityholder); and

            (J) so long as the Property Trustee is the Securities Registrar,
          registering transfers of the Trust Securities in accordance with this
          Trust Agreement; and

            (K) except as otherwise provided in this Section 2.7(a)(ii), the
          Property Trustee shall have none of the duties, liabilities, powers or
          the authority of the Administrative Trustees set forth in Section
          2.7(a)(i).

     (b) So long as this Trust Agreement remains in effect, the Trust (or the
Trustees acting on behalf of the Trust) shall not undertake any business,
activities or transaction except as expressly provided herein or contemplated
hereby.  In particular, the Trustees shall not (i) acquire any investments or
engage in any activities not authorized by this Trust Agreement, (ii) sell,
assign, transfer, exchange, mortgage, pledge, set-off or otherwise dispose of
any of the Trust Property or interests therein, including to Securityholders,
except as expressly provided herein, (iii) take any action that would cause the
Trust to fail or cease to qualify as a "grantor trust" for United States Federal
income tax purposes, (iv) incur any indebtedness for borrowed money or issue any
other debt or (v) take or consent to any action that would result in the
placement of a Lien on any of the Trust Property.  The Administrative Trustees
shall defend all claims and demands of all Persons at any time claiming any Lien
on any of the Trust Property adverse to the interest of the Trust or the
Securityholders in their capacity as Securityholders.

     (c) In connection with the issue and sale of the Preferred Securities, the
Depositor shall have the right and responsibility to assist the Trust with
respect to, or effect on behalf of the Trust, the following (and any actions
taken by the Depositor in furtherance of the following prior to the date of this
Trust Agreement are hereby ratified and confirmed in all respects):

         (i)   the preparation and filing by the Trust with the Commission and
     the execution on behalf of the Trust of a registration statement on the
     appropriate form in relation to the Preferred Securities, including any
     amendments thereto;

         (ii)  the determination of the States in which to take appropriate
     action to qualify or register for sale all or part of the Preferred
     Securities and the determination of any and all such acts, other than
     actions which must be taken by or on behalf of the Trust, and the advice to
     the Trustees of actions they must take on behalf of the Trust, and the
     preparation for execution and filing of any documents to be executed and
     filed by the Trust or on behalf of the Trust, as the Depositor deems
     necessary or advisable in order to comply with the applicable laws of any
     such States;

          (iii) the preparation for filing by the Trust and execution on behalf
     of the Trust of an application to the New York Stock Exchange or any other
     national stock exchange or the Nasdaq National Market for listing upon
     notice of issuance of any Preferred Securities;

                                      14
<PAGE>
 
          (iv)  the preparation for filing by the Trust with the Commission and
     the execution on behalf of the Trust of a registration statement on 
     Form 8-A relating to the registration of the Preferred Securities under
     Section 12(b) or 12(g) of the Exchange Act, including any amendments
     thereto;

          (v)   the negotiation of the terms of, and the execution and delivery
     of, the Purchase Agreement providing for the sale of the Preferred
     Securities; and

          (vi)  the taking of any other actions necessary or desirable to carry
     out any of the foregoing activities.

     (d) Notwithstanding anything herein to the contrary, the Administrative
Trustees are authorized and directed to conduct the affairs of the Trust and to
operate the Trust so that the Trust will not be deemed to be an "investment
company" required to be registered under the 1940 Act, or fail to be classified
as a grantor trust for United States Federal income tax purposes and so that the
Debentures will be treated as indebtedness of the Depositor for United States
Federal income tax purposes. In this connection, the Depositor and the
Administrative Trustees are authorized to take any action, not inconsistent with
applicable law, the Certificate of Trust or this Trust Agreement, that each of
the Depositor and any Administrative Trustee determines in its discretion to be
necessary or desirable for such purposes, as long as such action does not
adversely affect in any material respect the interests of the holders of the
Preferred Securities.

     Section 2.8.  Assets of Trust.

     The assets of the Trust shall consist of the Trust Property.

     Section 2.9.  Title to Trust Property.

     Legal title to all Trust Property shall be vested at all times in the
Property Trustee (in its capacity as such) and shall be held and administered by
the Property Trustee for the benefit of the Trust and the Securityholders in
accordance with this Trust Agreement.


                                  ARTICLE III.

                                PAYMENT ACCOUNT

     Section 3.1.  Payment Account.

     (a) On or prior to the Closing Date, the Property Trustee shall establish
the Payment Account.  The Property Trustee and any agent of the Property Trustee
shall have exclusive control and sole right of withdrawal with respect to the
Payment Account for the purpose of making deposits in and withdrawals from the
Payment Account in accordance with this Trust Agreement.  All monies and other
property deposited or held from time to time in the Payment Account shall be
held by the Property Trustee in the Payment Account for the exclusive benefit of
the Securityholders and for 

                                      15
<PAGE>
 
distribution as herein provided, including (and subject to) any priority of
payments provided for herein.

     (b) The Property Trustee shall deposit in the Payment Account, promptly
upon receipt, all payments of principal of or interest on, and any other
payments or proceeds with respect to, the Debentures.  Amounts held in the
Payment Account shall not be invested by the Property Trustee pending
distribution thereof.


                                  ARTICLE IV.

                           DISTRIBUTIONS; REDEMPTION

     Section 4.1.  Distributions.

     (a) The Trust Securities represent undivided beneficial interests in the
Trust Property, and Distributions (including of Additional Amounts) will be made
on the Trust Securities at the rate and on the dates that payments of interest
(including of Additional Interest, as defined in the Indenture) are made on the
Debentures.  Accordingly:

         (i)   Distributions on the Trust Securities shall be cumulative, and
     will accumulate whether or not there are funds of the Trust available for
     the payment of Distributions. Distributions shall accrue from the date of
     original issuance of the Trust Securities, and, except in the event (and to
     the extent) that the Depositor exercises its right to defer the payment of
     interest on the Debentures pursuant to the Indenture, shall be payable
     quarterly in arrears on March 15, June 15, September 15 and December 15 of
     each year, commencing on June 15, 1997. If any date on which a Distribution
     is otherwise payable on the Trust Securities is not a Business Day, then
     the payment of such Distribution shall be made on the next succeeding day
     that is a Business Day (and without any interest or other payment in
     respect of any such delay) except that, if such Business Day is in the next
     succeeding calendar year, payment of such Distribution shall be made on the
     immediately preceding Business Day, in each case with the same force and
     effect as if made on such date (each date on which distributions are
     payable in accordance with this Section 4.1(a), a "Distribution Date").

         (ii)  Assuming payments of interest on the Debentures are made when due
     (and before giving effect to Additional Amounts, if applicable),
     Distributions on the Trust Securities shall be payable at a rate of 9.75%
     per annum of the Liquidation Amount of the Trust Securities. The amount of
     Distributions payable for any full period shall be computed on the basis of
     a 360-day year of twelve 30-day months. The amount of Distributions for any
     partial period shall be computed on the basis of the number of days elapsed
     in a 360-day year of twelve 30-day months. The amount of Distributions
     payable for any period shall include the Additional Amounts, if any.

                                      16
<PAGE>
 
          (iii) Distributions on the Trust Securities shall be made by the
Property Trustee from the Payment Account and shall be payable on each
Distribution Date only to the extent that the Trust has funds then on hand and
available in the Payment Account for the payment of such Distributions.

     (b) Distributions on the Trust Securities with respect to a Distribution
Date shall be payable to the Holders thereof as they appear on the Securities
Register for the Trust Securities on the relevant record date, which shall be
one Business Day prior to such Distribution Date; provided, however, that in the
event that the Preferred Securities do not remain in book-entry-only form, the
relevant record date shall be the date 15 days prior to the relevant
Distribution Date.

      Section 4.2.  Redemption.

     (a) On each Debenture Redemption Date and on the stated maturity of the
Debentures, the Trust will be required to redeem, subject to Section 4.3, a Like
Amount of Trust Securities at the Redemption Price.

     (b) Notice of redemption shall be given by the Property Trustee by first-
class mail, postage prepaid, mailed not less than 30 nor more than 60 days prior
to the Redemption Date to each Holder of Trust Securities to be redeemed, at
such Holder's address appearing in the Security Register.  All notices of
redemption shall state:

         (i)   the Redemption Date;

         (ii)  the Redemption Price;

         (iii) the CUSIP number;

         (iv)  if less than all the Outstanding Trust Securities are to be
     redeemed, the identification and the total Liquidation Amount of the
     particular Trust Securities to be redeemed; and

         (v)   that on the Redemption Date the Redemption Price will become due
     and payable upon each such Trust Security to be redeemed and that
     Distributions thereon will cease to accrue on and after said date.

     (c) The Trust Securities redeemed on each Redemption Date shall be redeemed
at the Redemption Price with the proceeds from the contemporaneous redemption of
Debentures. Redemptions of the Trust Securities shall be made and the Redemption
Price shall be payable on each Redemption Date only to the extent that the Trust
has funds then on hand and available in the Payment Account for the payment of
such Redemption Price.

     (d) If the Property Trustee gives a notice of redemption in respect of any
Preferred Securities, then, by 12:00 noon, New York City time, on the Redemption
Date, subject to Section 4.2(c), with respect to Preferred Securities held in
book-entry form, the Property Trustee will 

                                      17
<PAGE>
 
irrevocably deposit with the Clearing Agency for the Preferred Securities funds
sufficient to pay the applicable Redemption Price and will give such Clearing
Agency irrevocable instructions and authority to pay the Redemption Price to the
holders thereof. With respect to Preferred Securities held in certificated form,
the Property Trustee, subject to Section 4.2(c), will irrevocably deposit with
the Paying Agent funds sufficient to pay the applicable Redemption Price and
will give the Paying Agent irrevocable instructions and authority to pay the
Redemption Price to the Holders thereof upon surrender of their Preferred
Securities Certificates. Notwithstanding the foregoing, Distributions payable on
or prior to the Redemption Date for any Trust Securities called for redemption
shall be payable to the Holders of such Trust Preferred Securities as they
appear on the Register for the Trust Securities on the relevant record dates for
the related Distribution Dates. If notice of redemption shall have been given
and funds deposited as required, then upon the date of such deposit, all rights
of Securityholders holding Trust Securities so called for redemption will cease,
except the right of such Securityholders to receive the Redemption Price and any
Distribution payable on or prior to the Redemption Date, but without interest,
and such Securities will cease to be outstanding. In the event that any date on
which any Redemption Price is payable is not a Business Day, then payment of the
Redemption Price payable on such date will be made on the next succeeding day
that is a Business Day (and without any interest or other payment in respect of
any such delay), except that, if such Business Day falls in the next calendar
year, such payment will be made on he immediately preceding Business Day, in
each case, with the same force and effect as if made on such date. In the event
that payment of the Redemption Price in respect of any Trust Securities called
for redemption is improperly withheld or refused and not paid either by the
Trust or by the Depositor pursuant to the Guarantee, Distributions on such Trust
Securities will continue to accrue, at the then applicable rate, from the
Redemption Date originally established by the Trust for such Trust Securities to
the date such Redemption Price is actually paid, in which case the actual
payment date will be the date fixed for redemption for purposes of calculating
the Redemption Price.

     (e) Payment of the Redemption Price on the Trust Securities shall be made
to the recordholders thereof as they appear on the Securities Register for the
Trust Securities on the relevant record date, which shall be one Business Day
prior to the relevant Redemption Date; provided, however, that in the event that
the Preferred Securities do not remain in book-entry-only form, the relevant
record date shall be the date fifteen days prior to the relevant Redemption
Date.

     (f) Subject to Section 4.3(a), if less than all the Outstanding Trust
Securities are to be redeemed on a Redemption Date, then the aggregate
Liquidation Amount of Trust Securities to be redeemed shall be allocated on a
pro rata basis (based on Liquidation Amounts) among the Common Securities and
the Preferred Securities. The particular Preferred Securities to be redeemed
shall be selected on a pro rata basis (based upon Liquidation Amounts) not more
than 60 days prior to the Redemption Date by the Property Trustee from the
Outstanding Preferred Securities not previously called for redemption, by such
method (including, without limitation, by lot) as the Property Trustee shall
deem fair and appropriate and which may provide for the selection for redemption
of portions (equal to $25 or an integral multiple of $25 in excess thereof) of
the Liquidation Amount of Preferred Securities of a denomination larger than
$25. The Property Trustee shall promptly notify the Security Registrar in
writing of the Preferred Securities selected for redemption and, in the case of
any Preferred Securities selected for partial redemption, the Liquidation Amount
thereof to be redeemed. For all purposes of this Trust Agreement, unless the
context otherwise requires, all 

                                      18
<PAGE>
 
provisions relating to the redemption of Preferred Securities shall relate, in
the case of any Preferred Securities redeemed or to be redeemed only in part, to
the portion of the Liquidation Amount of Preferred Securities that has been or
is to be redeemed.

      Section 4.3.  Subordination of Common Securities.

     (a) Payment of Distributions (including Additional Amounts, if applicable)
on, and the Redemption Price of, the Trust Securities, as applicable, shall be
made, subject to Section 4.2(f), pro rata among the Common Securities and the
Preferred Securities based on the Liquidation Amount of the Trust Securities;
provided, however, that if on any Distribution Date or Redemption Date any Event
of Default resulting from a Debenture Event of Default shall have occurred and
be continuing, no payment of any Distribution (including Additional Amounts, if
applicable) on, or Redemption Price of, any Common Security, and no other
payment on account of the redemption, liquidation or other acquisition of Common
Securities, shall be made unless payment in full in cash of all accumulated and
unpaid Distributions (including Additional Amounts, if applicable) on all
Outstanding Preferred Securities for all Distribution periods terminating on or
prior thereto, or in the case of payment of the Redemption Price the full amount
of such Redemption Price on all Outstanding Preferred Securities, shall have
been made or provided for, and all funds immediately available to the Property
Trustee shall first be applied to the payment in full in cash of all
Distributions (including Additional Amounts, if applicable) on, or the
Redemption Price of, Preferred Securities then due and payable.

     (b) In the case of the occurrence of any Event of Default resulting from
any Debenture Event of Default, the Holder of Common Securities will be deemed
to have waived any right to act with respect to any such Event of Default under
this Trust Agreement until the effect of all such Events of Default with respect
to the Preferred Securities have been cured, waived or otherwise eliminated.
Until any such Event of Default under this Trust Agreement with respect to the
Preferred Securities has been so cured, waived or otherwise eliminated, the
Property Trustee shall act solely on behalf of the Holders of the Preferred
Securities and not the Holder of the Common Securities, and only the Holders of
the Preferred Securities will have the right to direct the Property Trustee to
act on their behalf.

      Section 4.4.  Payment Procedures.

     Payments of Distributions (including Additional Amounts, if applicable) in
respect of the Preferred Securities shall be made by check mailed to the address
of the Person entitled thereto as such address shall appear on the Securities
Register or, if the Preferred Securities are held by a Clearing Agency, such
Distributions shall be made to the Clearing Agency in immediately available
funds, which shall credit the relevant Persons' accounts at such Clearing Agency
on the applicable Distribution Dates.  Payments in respect of the Common
Securities shall be made in such manner as shall be mutually agreed between the
Property Trustee and the Common Securityholder.

      Section 4.5.  Tax Returns and Reports.

                                      19
<PAGE>
 
     The Administrative Trustees shall prepare (or cause to be prepared), at the
Depositor's expense, and file all United States Federal, state and local tax and
information returns and reports required to be filed by or in respect of the
Trust. In this regard, the Administrative Trustees shall (a) prepare and file
(or cause to be prepared and filed) the appropriate Internal Revenue Service
Form required to be filed in respect of the Trust in each taxable year of the
Trust and (b) prepare and furnish (or cause to be prepared and furnished) to
each Securityholder the appropriate Internal Revenue Service form required to be
provided on such form. The Administrative Trustees shall provide the Depositor
and the Property Trustee with a copy of all such returns and reports promptly
after such filing or furnishing. The Trustees shall comply with United States
Federal withholding and backup withholding tax laws and information reporting
requirements with respect to any payments to Securityholders under the Trust
Securities.

      Section 4.6.1 Payment of Taxes, Duties, Etc. of the Trust.

     Upon receipt under the Debentures of Additional Sums, the Property Trustee
shall promptly pay any taxes, duties or governmental charges of whatsoever
nature (other than withholding taxes) imposed on the Trust by the United States
or any other taxing authority.

     Section 4.7.  Payments under Indenture or Pursuant to Direct Actions.

     Any amount payable hereunder to any Holder of Preferred Securities (and any
Owner with respect thereto) shall be reduced by the amount of any corresponding
payment such Holder (and Owner) has directly received pursuant to Section 5.8 of
the Indenture or Section 5.14 of this Trust Agreement.


                                   ARTICLE V.

                         TRUST SECURITIES CERTIFICATES

     Section 5.1.  Initial Ownership.

     Upon the formation of the Trust and the contribution by the Depositor
pursuant to Section 2.3 and until the issuance of the Trust Securities, and at
any time during which no Trust Securities are outstanding, the Depositor shall
be the sole beneficial owner of the Trust.

     Section 5.2.1 The Trust Securities Certificates.

     The Preferred Securities Certificates shall be issued in minimum
denominations of $25 Liquidation Amount and integral multiples of $25 in excess
thereof, and the Common Securities Certificates shall be issued in denominations
of $25 Liquidation Amount and integral multiples thereof. The Trust Securities
Certificates shall be executed on behalf of the Trust by manual signature of at
least one Administrative Trustee. Trust Securities Certificates bearing the
manual signatures of individuals who were, at the time when such signatures
shall have been affixed, authorized to sign on behalf of the Trust, shall be
validly issued and entitled to the benefits of this

                                      20
<PAGE>
 
Trust Agreement, notwithstanding that such individuals or any of them shall have
ceased to be so authorized prior to the delivery of such Trust Securities
Certificates or did not hold such offices at the date of delivery of such Trust
Securities Certificates. A transferee of a Trust Securities Certificate shall
become a Securityholder, and shall be entitled to the rights and subject to the
obligations of a Securityholder hereunder, upon due registration of such Trust
Securities Certificate in such transferee's name pursuant to Sections 5.4, 5.11
and 5.13.

     Section 5.3.  Execution and Delivery of Trust Securities Certificates.

     At the Closing Date, the Administrative Trustees shall cause Trust
Securities Certificates, in an aggregate Liquidation Amount as provided in
Section 2.4, to be executed on behalf of the Trust and delivered to or upon the
written order of the Depositor, signed by its chairman of the board, its
president, any executive vice president or any vice president, treasurer or
assistant treasurer or controller without further corporate action by the
Depositor, in authorized denominations.

     Section 5.4.  Registration of Transfer and Exchange of Preferred Securities
Certificates.

     The Depositor shall keep or cause to be kept, at the office or agency
maintained pursuant to Section 5.8, a register or registers for the purpose of
registering Trust Securities Certificates and transfers and exchanges of
Preferred Securities Certificates (the "Securities Register") in which, the
registrar designated by the Depositor (the "Securities Registrar"), subject to
such reasonable regulations as it may prescribe, shall provide for the
registration of Preferred Securities Certificates and Common Securities
Certificates (subject to Section 5.10 in the case of the Common Securities
Certificates) and registration of transfers and exchanges of Preferred
Securities Certificates as herein provided.  The Property Trustee shall be the
initial Securities Registrar.

     Upon surrender for registration of transfer of any Preferred Securities
Certificate at the office or agency maintained pursuant to Section 5.8, the
Administrative Trustees or any one of them shall execute and deliver, in the
name of the designated transferee or transferees, one or more new Preferred
Securities Certificates in authorized denominations of a like aggregate
Liquidation Amount dated the date of execution by such Administrative Trustee or
Trustees.

     The Securities Registrar shall not be required to register the transfer of
any Preferred Securities that have been called for redemption.  At the option of
a Holder, Preferred Securities Certificates may be exchanged for other Preferred
Securities Certificates in authorized denominations of the same class and of a
like aggregate Liquidation Amount upon surrender of the Preferred Securities
Certificates to be exchanged at the office or agency maintained pursuant to
Section 5.8.

     Every Preferred Securities Certificate presented or surrendered for
registration of transfer or exchange shall be accompanied by a written
instrument of transfer in form satisfactory to an Administrative Trustee and the
Securities Registrar duly executed by the Holder or his attorney duly authorized
in writing. Each Preferred Securities Certificate surrendered for registration
of transfer or exchange shall be canceled and subsequently disposed of by an
Administrative Trustee in accordance with such Person's customary practice. The
Trust shall not be required to (i) issue,

                                      21
<PAGE>
 
register the transfer of, or exchange any Preferred Securities during a period
beginning at the opening of business 15 calendar days before the date of mailing
of a notice of redemption of any Preferred Securities called for redemption and
ending at the close business on the day of such mailing or (ii) register the
transfer of or exchange any Preferred Securities so selected for redemption, in
whole or in part, except the unredeemed portion of any such Preferred Securities
being redeemed in part.

     No service charge shall be made for any registration of transfer or
exchange of Preferred Securities Certificates, but the Securities Registrar may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer or exchange of Preferred
Securities Certificates.

      Section 5.5.  Mutilated, Destroyed, Lost or Stolen Trust Securities
Certificates.

     If (a) any mutilated Trust Securities Certificate shall be surrendered to
the Securities Registrar, or if the Securities Registrar shall receive evidence
to its satisfaction of the destruction, loss or theft of any Trust Securities
Certificate and (b) there shall be delivered to the Securities Registrar and the
Administrative Trustees such security or indemnity as may be required by them to
save each of them harmless, then in the absence of notice that such Trust
Securities Certificate shall have been acquired by a bona fide purchaser, the
Administrative Trustees, or any one of them, on behalf of the Trust shall
execute and make available for delivery, in exchange for or in lieu of any such
mutilated, destroyed, lost or stolen Trust Securities Certificate, a new Trust
Securities Certificate of like class, tenor and denomination.  In connection
with the issuance of any new Trust Securities Certificate under this Section,
the Administrative Trustees or the Securities Registrar may require the payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection therewith.  Any duplicate Trust Securities Certificate
issued pursuant to this Section shall constitute conclusive evidence of an
undivided beneficial interest in the assets of the Trust, as if originally
issued, whether or not the lost, stolen or destroyed Trust Securities
Certificate shall be found at any time.

     Section 5.6.  Persons Deemed Securityholders.

     The Trustees or the Securities Registrar shall treat the Person in whose
name any Trust Securities Certificate shall be registered in the Securities
Register as the owner of such Trust Securities Certificate for the purpose of
receiving Distributions and for all other purposes whatsoever, and neither the
Trustees nor the Securities Registrar shall be bound by any notice to the
contrary.

     Section 5.7.  Access to List of Securityholders' Names and Addresses.

     At any time when the Property Trustee is not also acting as the Securities
Registrar, the Administrative Trustees or the Depositor shall furnish or cause
to be furnished to the Property Trustee (a) semi-annually on or before January 1
and July 1 in each year, a list, in such form as the Property Trustee may
reasonably require, of the names and addresses of the Securityholders as of the
most recent Record Date and (b) promptly after receipt by any Administrative
Trustee or the Depositor of a request therefor from the Property Trustee, such
other information as the Property 

                                      22
<PAGE>
 
Trustee may reasonably require in order to enable the Property Trustee to
discharge its obligations under this Trust Agreement, in each case to the extent
such information is in the possession or control of the Administrative Trustees
or the Depositor and is not identical to a previously supplied list or has not
otherwise been received by the Property Trustee in its capacity as Securities
Registrar. The rights of Securityholders to communicate with other
Securityholders with respect to their rights under this Trust Agreement or under
the Trust Securities, and the corresponding rights of the Trustee shall be as
provided in the Trust Indenture Act. Each Securityholder, by receiving and
holding a Trust Securities Certificate, and each Owner shall be deemed to have
agreed not to hold the Depositor, the Property Trustee or the Administrative
Trustees accountable by reason of the disclosure of its name and address,
regardless of the source from which such information was derived.

     Section 5.8.  Maintenance of Office or Agency.

     The Administrative Trustees shall maintain an office or offices or agency
or agencies where Preferred Securities Certificates may be surrendered for
registration of transfer or exchange and where notices and demands to or upon
the Trustees in respect of the Trust Securities Certificates may be served.  The
Administrative Trustees initially designate the principal corporate trust office
of the Property Trustee, Rodney Square North, 1100 North Market Street,
Wilmington, Delaware 19890-0001, Attention: Corporate Trust Administration, as
the principal corporate trust office for such purposes.  The Administrative
Trustees shall give prompt written notice to the Depositor and to the
Securityholders of any change in the location of the Securities Register or any
such office or agency.

     Section 5.9.  Appointment of Paying Agent.

     The Paying Agent shall make Distributions to Securityholders from the
Payment Account and shall report the amounts of such Distributions to the
Property Trustee and the Administrative Trustees. Any Paying Agent shall have
the revocable power to withdraw funds from the Payment Account for the purpose
of making the Distributions referred to above. The Administrative Trustees may
revoke such power and remove the Paying Agent if such Trustees determine in
their sole discretion that the Paying Agent shall have failed to perform its
obligations under this Trust Agreement in any material respect. The Paying Agent
shall initially be the Property Trustee, and any co-paying agent chosen by the
Property Trustee, and acceptable to the Administrative Trustees and the
Depositor. Any Person acting as Paying Agent shall be permitted to resign as
Paying Agent upon 30 days' written notice to the Administrative Trustees, the
Property Trustee and the Depositor. In the event that the Property Trustee shall
no longer be the Paying Agent or a successor Paying Agent shall resign or its
authority to act be revoked, the Administrative Trustees shall appoint a
successor that is acceptable to the Property Trustee and the Depositor to act as
Paying Agent (which shall be a bank or trust company). The Administrative
Trustees shall cause such successor Paying Agent or any additional Paying Agent
appointed by the Administrative Trustees to execute and deliver to the Trustees
an instrument in which such successor Paying Agent or additional Paying Agent
shall agree with the Trustees that as Paying Agent, such successor Paying Agent
or additional Paying Agent will hold all sums, if any, held by it for payment to
the Securityholders in trust for the benefit of the Securityholders entitled
thereto until such sums shall be paid to such Securityholders. The Paying Agent
shall return all unclaimed funds to the Property Trustee and upon removal of a
Paying Agent 

                                      23
<PAGE>
 
such Paying Agent shall also return all funds in its possession to the Property
Trustee. The provisions of Sections 8.1, 8.3 and 8.6 herein shall apply to the
Property Trustee also in its role as Paying Agent, for so long as the Property
Trustee shall act as Paying Agent and, to the extent applicable, to any other
paying agent appointed hereunder. Any reference in this Agreement to the Paying
Agent shall include any co-paying agent unless the context requires otherwise.

     Section 5.10. Ownership of Common Securities by Depositor.

     At the Closing Date, the Depositor shall acquire and retain beneficial and
record ownership of the Common Securities.  To the fullest extent permitted by
law, other than a transfer in connection with a consolidation or merger of the
Depositor into another corporation, or any conveyance, transfer or lease by the
Depositor of its properties and assets substantially as an entirety to any
Person, pursuant to Section 8.1 of the Indenture, any attempted transfer of the
Common Securities shall be void.  The Administrative Trustees shall cause each
Common Securities Certificate issued to the Depositor to contain a legend
stating "THIS CERTIFICATE IS NOT TRANSFERABLE".

     Section 5.11. Book-Entry Preferred Securities Certificates; Common
Securities Certificate.

     (a) The Preferred Securities Certificates, upon original issuance, will be
issued in the form of a typewritten Preferred Securities Certificate or
Certificates representing Book-Entry Preferred Securities Certificates, to be
delivered to The Depository Trust Company, the initial Clearing Agency, by, or
on behalf of, the Trust.  Such Preferred Securities Certificate or Certificates
shall initially be registered on the Securities Register in the name of Cede &
Co., the nominee of the initial Clearing Agency, and no Owner will receive a
Definitive Preferred Securities Certificate representing such Owner's interest
in such Preferred Securities, except as provided in Section 5.13. Unless and
until Definitive Preferred Securities Certificates have been issued to Owners
pursuant to Section 5.13:

          (i)   the provisions of this Section 5.11(a) shall be in full force
     and effect;

          (ii)  the Securities Registrar, the Paying Agent and the Trustees
     shall be entitled to deal with the Clearing Agency for all purposes of this
     Trust Agreement relating to the Book-Entry Preferred Securities
     Certificates (including the payment of the Liquidation Amount of and
     Distributions on the Preferred Securities evidenced by Book-Entry Preferred
     Securities Certificates) the Book-Entry Preferred Securities Certificates
     and shall have no obligations to the Owners thereof;

          (iii) to the extent that the provisions of this Section 5.11 conflict
     with any other provisions of this Trust Agreement, the provisions of this
     Section 5.11 shall control; and

          (iv)  the rights of the Owners of the Book-Entry Preferred Securities
     Certificates shall be exercised only through the Clearing Agency and shall
     be limited to those established by law and agreements between such Owners
     and the Clearing Agency and/or the Clearing Agency Participants. Pursuant
     to the Certificate Depository Agreement, unless and until Definitive
     Preferred Securities Certificates are issued pursuant to Section 5.13, the
     initial

                                      24
<PAGE>
 
     Clearing Agency will make book-entry transfers among the Clearing Agency
     Participants and receive and transmit payments on the Preferred Securities
     to such Clearing Agency Participants. Any Clearing Agency designated
     pursuant here to will not be deemed an agent of the Trustee for any
     purpose.

     (b) A single Common Securities Certificate representing the Common
Securities shall be issued to the Depositor in the form of a definitive Common
Securities Certificate.

     Section 5.12. Notices to Clearing Agency.

     To the extent that a notice or other communication to the Owners is
required under this Trust Agreement, unless and until Definitive Preferred
Securities Certificates shall have been issued to Owners pursuant to Section
5.13, the Trustees shall give all such notices and communications specified
herein to be given to Owners to the Clearing Agency, and shall have no
obligations to the Owners.

     Section 5.13. Definitive Preferred Securities Certificates.

     If (a) the Depositor advises the Trustees in writing that the Clearing
Agency is no longer willing or able to properly discharge its responsibilities
with respect to the Preferred Securities Certificates, and the Depositor is
unable to locate a qualified successor, (b) the Depositor at its option advises
the Trustees in writing that it elects to terminate the book-entry system
through the Clearing Agency or (c) after the occurrence of a Debenture Event of
Default, Owners of Preferred Securities Certificates representing beneficial
interests aggregating at least a majority of the Liquidation Amount advise the
Property Trustee in writing that the continuation of a book-entry system through
the Clearing Agency is no longer in the best interest of the Owners of Preferred
Securities Certificates, then the Property Trustee shall notify the Clearing
Agency and the Clearing Agency shall notify all Owners of Preferred Securities
Certificates and the other Trustees of the occurrence of any such event and of
the availability of the Definitive Preferred Securities Certificates to Owners
of such class or classes, as applicable, requesting the same. Upon surrender to
the Property Trustee of the typewritten Preferred Securities Certificate or
Certificates representing the Book Entry Preferred Securities Certificates by
the Clearing Agency, accompanied by registration instructions, the
Administrative Trustees, or any one of them, shall execute the Definitive
Preferred Securities Certificates in accordance with the instructions of the
Clearing Agency. Neither the Securities Registrar nor the Trustees shall be
liable for any delay in delivery of such instructions and may conclusively rely
on, and shall be protected in relying on, such instructions. Upon the issuance
of Definitive Preferred Securities Certificates, the Trustees shall recognize
the Holders of the Definitive Preferred Securities Certificates as
Securityholders. The Definitive Preferred Securities Certificates shall be
printed, lithographed or engraved or may be produced in any other manner as is
reasonably acceptable to the Administrative Trustees, as evidenced by the
execution thereof by the Administrative Trustees or any one of them.

                                      25
<PAGE>
 
     Section 5.14. Rights of Securityholders.

     (a) The legal title to the Trust Property is vested exclusively in the
Property Trustee (in its capacity as such) in accordance with Section 2.9, and
the Securityholders shall not have any right or title therein other than the
undivided beneficial interest in the assets of the Trust conferred by their
Trust Securities and they shall have no right to call for any partition or
division of property, profits or rights of the Trust except as described below.
The Trust Securities shall be personal property giving only the rights
specifically set forth therein and in this Trust Agreement. The Trust Securities
shall have no preemptive or similar rights and when issued and delivered to
Securityholders against payment of the purchase price therefor will be fully
paid and nonassessable by the Trust. The Holders of the Trust Securities, in
their capacities as such, shall be entitled to the same limitation of personal
liability extended to stockholders of private corporations for profit organized
under the General Corporation Law of the State of Delaware.

     (b) For so long as any Preferred Securities remain Outstanding, if, upon a
Debenture Event of Default, the Debenture Trustee fails or the holders of not
less than 25% in principal amount of the outstanding Debentures fail to declare
the principal of all of the Debentures to be immediately due and payable, the
Holders of at least 25% in Liquidation Amount of the Preferred Securities then
Outstanding shall have such right by a notice in writing to the Depositor and
the Debenture Trustee; and upon any such declaration such principal amount of
and the accrued interest on all of the Debentures shall become immediately due
and payable, provided that the payment of principal and interest on such
Debentures shall remain subordinated to the extent provided in the Indenture.

     At any time after such a declaration of acceleration with respect to the
Debentures has been made and before a judgment or decree for payment of the
money due has been obtained by the Debenture Trustee as in the Indenture
provided, the Holders of a majority in Liquidation Amount of the Preferred
Securities, by written notice to the Property Trustee, the Depositor and the
Debenture Trustee, may rescind and annul such declaration and its consequences
if:

          (i)   the Depositor has paid or deposited with the Debenture Trustee a
     sum sufficient to pay

     (A) all overdue installments of interest (including any Additional Interest
(as defined in the Indenture)) on all of the Debentures,

     (B) the principal of (and premium, if any, on) any Debentures which have
become due otherwise than by such declaration of acceleration and interest
thereon at the rate borne by the Debentures, and

     (C) all sums paid or advanced by the Debenture Trustee under the Indenture
and the reasonable compensation, expenses, disbursements and advances of the
Debenture Trustee and the Property Trustee, their agents and counsel; and

                                      26
<PAGE>
 
          (ii)  all Events of Default with respect to the Debentures, other than
     the non-payment of the principal of the Debentures which has become due
     solely by such acceleration, have been cured or waived as provided in
     Section 5.13 of the Indenture.

     The holders of a majority in aggregate Liquidation Amount of the Preferred
Securities may, on behalf of the Holders of all the Preferred Securities, waive
any past default under the Indenture, except a default in the payment of
principal or interest (unless such default has been cured and a sum sufficient
to pay all matured installments of interest and principal due otherwise than by
acceleration has been deposited with the Debenture Trustee) or a default in
respect of a covenant or provision which under the Indenture cannot be modified
or amended without the consent of the holder of each outstanding Debenture. No
such rescission shall affect any subsequent default or impair any right
consequent thereon.

     Upon receipt by the Property Trustee of written notice declaring such an
acceleration, or rescission and annulment thereof, by Holders of the Preferred
Securities all or part of which is represented by Book-Entry Preferred
Securities Certificates, a record date shall be established for determining
Holders of Outstanding Preferred Securities entitled to join in such notice,
which record date shall be at the close of business on the day the Property
Trustee receives such notice. The Holders on such record date, or their duly
designated proxies, and only such Persons, shall be entitled to join in such
notice, whether or not such Holders remain Holders after such record date;
provided, that, unless such declaration of acceleration, or rescission and
annulment, as the case may be, shall have become effective by virtue of the
requisite percentage having joined in such notice prior to the day which is 90
days after such record date, such notice of declaration of acceleration, or
rescission and annulment, as the case may be, shall automatically and without
further action by any Holder be canceled and of no further effect. Nothing in
this paragraph shall prevent a Holder, or a proxy of a Holder, from giving,
after expiration of such 90-day period, a new written notice of declaration of
acceleration, or rescission and annulment thereof, as the case may be, that is
identical to a written notice which has been canceled pursuant to the proviso to
the preceding sentence, in which event a new record date shall be established
pursuant to the provisions of this Section 5.14(b).

     (c) For so long as any Preferred Securities remain Outstanding, to the
fullest extent permitted by law and subject to the terms of this Trust Agreement
and the Indenture, upon a Debenture Event of Default specified in Section 5.1(1)
or 5.1(2) of the Indenture, any Holder of Preferred Securities shall have the
right to institute a proceeding directly against the Depositor, pursuant to
Section 5.8 of the Indenture, for enforcement of payment to such Holder of the
principal amount of or interest on Debentures having a principal amount equal to
the Liquidation Amount of the Preferred Securities of such Holder (a "Direct
Action").  Except as set forth in Section 5.14(b) and this Section 5.14(c), the
Holders of Preferred Securities shall have no right to exercise directly any
right or remedy available to the holders of, or in respect of, the Debentures.


                                  ARTICLE VI.

                   ACTS OF SECURITYHOLDERS; MEETINGS; VOTING

                                      27
<PAGE>
 
     Section 6.1.  Limitations on Voting Rights.

     (a) Except as provided in this Section, in Sections 5.14, 8.10 and 10.2 and
in the Indenture and as otherwise required by law, no Holder of Preferred
Securities shall have any right to vote or in any manner otherwise control the
administration, operation and management of the Trust or the obligations of the
parties hereto, nor shall anything herein set forth, or contained in the terms
of the Trust Securities Certificates, be construed so as to constitute the
Securityholders from time to time as partners or members of an association.

     (b) So long as any Debentures are held by the Property Trustee, the
Trustees shall not (i) direct the time, method and place of conducting any
proceeding for any remedy available to the Debenture Trustee, or executing any
trust or power conferred on the Debenture Trustee with respect to such
Debentures, (ii) waive any past default which is waivable under Section 5.13 of
the Indenture, (iii) exercise any right to rescind or annul a declaration that
the principal of all the Debentures shall be due and payable or (iv) consent to
any amendment, modification or termination of the Indenture or the Debentures,
where such consent shall be required, without, in each case, obtaining the prior
approval of the Holders of at least a majority in Liquidation Amount of all
Outstanding Preferred Securities, provided, however, that where a consent under
the Indenture would require the consent of each Holder of Debentures affected
thereby, no such consent shall be given by the Property Trustee without the
prior written consent of each Holder of Preferred Securities.  The Trustees
shall not revoke any action previously authorized or approved by a vote of the
Holders of Preferred Securities, except by a subsequent vote of the Holders of
Preferred Securities.  The Property Trustee shall notify all Holders of the
Preferred Securities of any notice of default received from the Debenture
Trustee with respect to the Debentures.  In addition to obtaining the foregoing
approvals of the Holders of the Preferred Securities, prior to taking any of the
foregoing actions, the Trustees shall, at the expense of the Depositor, obtain
an Opinion of Counsel experienced in such matters to the effect that such action
shall not cause the Trust to fail to be classified as a grantor trust for United
States Federal income tax purposes.

     (c) If any proposed amendment to the Trust Agreement provides for, or the
Trustees otherwise propose to effect, (i) any action that would adversely affect
in any material respect the powers, preferences or special rights of the
Preferred Securities, whether by way of amendment to the Trust Agreement or
otherwise, or (ii) the dissolution, winding-up or termination of the Trust,
other than pursuant to the terms of this Trust Agreement, then the Holders of
Outstanding Preferred Securities as a class will be entitled to vote on such
amendment or proposal and such amendment or proposal shall not be effective
except with the approval of the Holders of at least a majority in Liquidation
Amount of the Outstanding Preferred Securities.  Notwithstanding any other
provision of this Trust Agreement, no amendment to this Trust Agreement may be
made if, as a result of such amendment, it would cause the Trust to fail to be
classified as a grantor trust for United States Federal income tax purposes.

     Section 6.2.  Notice of Meetings.

     Notice of all meetings of the Preferred Securityholders, stating the time,
place and purpose of the meeting, shall be given by the Property Trustee
pursuant to Section 10.8 to each Preferred 

                                      28
<PAGE>
 
Securityholder of record, at his registered address, at least 15 days and not
more than 90 days before the meeting. At any such meeting, any business properly
before the meeting may be so considered whether or not stated in the notice of
the meeting. Any adjourned meeting may be held as adjourned without further
notice.

     Section 6.3.  Meetings of Preferred Securityholders.

     No annual meeting of Securityholders is required to be held. The
Administrative Trustees, however, shall call a meeting of Preferred
Securityholders to vote on any matter upon the written request of Holders of
record of 25% of the Outstanding Preferred Securities (based upon their
Liquidation Amount) and the Administrative Trustees or the Property Trustee may,
at any time in their discretion, call a meeting of Preferred Securityholders to
vote on any matters as to which Preferred Securityholders are entitled to vote.

     Holders of record of 50% of the Outstanding Preferred Securities (based
upon their Liquidation Amount), present in person or by proxy, shall constitute
a quorum at any meeting of Securityholders.

     If a quorum is present at a meeting, an affirmative vote by the Preferred
Securityholders of record present, in person or by proxy, holding more than a
majority of the Preferred Securities (based upon their Liquidation Amount) held
by the Preferred Securityholders of record present, either in person or by
proxy, at such meeting shall constitute the action of the Preferred
Securityholders, unless this Trust Agreement requires a greater number of
affirmative votes.

     Section 6.4.  Voting Rights.

     Securityholders shall be entitled to one vote for each $25 of Liquidation
Amount represented by their Trust Securities in respect of any matter as to
which such Securityholders are entitled to vote.

     Section 6.5.  Proxies, etc.

     At any meeting of Securityholders, any Securityholder entitled to vote
thereat may vote by proxy, provided that no proxy shall be voted at any meeting
unless it shall have been placed on file with the Administrative Trustees, or
with such other officer or agent of the Trust as the Administrative Trustees may
direct, for verification prior to the time at which such vote shall be taken.
Pursuant to a resolution of the Property Trustee, proxies may be solicited in
the name of the Property Trustee or one or more officers of the Property
Trustee. Only Securityholders of record shall be entitled to vote. When Trust
Securities are held jointly by several persons, any one of them may vote at any
meeting in person or by proxy in respect of such Trust Securities, but if more
than one of them shall be present at such meeting in person or by proxy, and
such joint owners or their proxies so present disagree as to any vote to be
cast, such vote shall not be received in respect of such Trust Securities. A
proxy purporting to be executed by or on behalf of a Securityholder shall be
deemed valid unless challenged at or prior to its exercise, and the burden of
proving invalidity shall rest on the challenger. No proxy shall be valid more
than three years after its date of execution.

                                      29
<PAGE>
 
     Section 6.6.  Securityholder Action by Written Consent.

     Any action which may be taken by Securityholders at a meeting may be taken
without a meeting if Securityholders holding more than a majority of all
Outstanding Trust Securities (based upon their aggregate Liquidation Amount)
entitled to vote in respect of such action (or such larger proportion thereof as
shall be required by any express provision of this Trust Agreement) shall
consent to the action in writing (based upon their aggregate Liquidation
Amount).

     Section 6.7.  Record Date for Voting and Other Purposes.

     For the purposes of determining the Securityholders who are entitled to
notice of and to vote at any meeting or by written consent, or to participate in
any Distribution on the Trust Securities in respect of which a record date is
not otherwise provided for in this Trust Agreement, or for the purpose of any
other action, the Administrative Trustees may from time to time fix a date, not
more than 90 days prior to the date of any meeting of Securityholders or the
payment of a Distribution or other action, as the case may be, as a record date
for the determination of the identity of the Securityholders of record for such
purposes.

     Section 6.8.  Acts of Securityholders.

     Any request, demand, authorization, direction, notice, consent, waiver or
other action provided or permitted by this Trust Agreement to be given, made or
taken by Securityholders or Owners may be embodied in and evidenced by one or
more instruments of substantially similar tenor signed by such Securityholders
or Owners in person or by an agent duly appointed in writing; and, except as
otherwise expressly provided herein, such action shall become effective when
such instrument or instruments are delivered to an Administrative Trustee. Such
instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Securityholders or
Owners signing such instrument or instruments. Proof of execution of any such
instrument or of a writing appointing any such agent shall be sufficient for any
purpose of this Trust Agreement and (subject to Section 8.1) conclusive in favor
of the Trustees, if made in the manner provided in this Section.

     The fact and date of the execution by any Person of any such instrument or
writing may be proved by the affidavit of a witness of such execution or by a
certificate of a notary public or other officer authorized by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a signer acting in a capacity other than his individual capacity, such
certificate or affidavit shall also constitute sufficient proof of his
authority. The fact and date of the execution of any such instrument or writing,
or the authority of the Person executing the same, may also be proved in any
other manner which any Trustee receiving the same deems sufficient.

     The ownership of Preferred Securities shall be proved by the Securities
Register.

     Any request, demand, authorization, direction, notice, consent, waiver or
other Act of the Securityholder of any Trust Security shall bind every future
Securityholder of the same Trust 

                                      30
<PAGE>
 
Security and the Securityholder of every Trust Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustees or the
Trust in reliance thereon, whether or not notation of such action is made upon
such Trust Security.

     Without limiting the foregoing, a Securityholder entitled hereunder to take
any action hereunder with regard to any particular Trust Security may do so with
regard to all or any part of the Liquidation Amount of such Trust Security or by
one or more duly appointed agents each of which may do so pursuant to such
appointment with regard to all or any part of such liquidation amount.

     If any dispute shall arise between the Securityholders and the
Administrative Trustees or among such Securityholders or Trustees with respect
to the authenticity, validity or binding nature of any request, demand,
authorization, direction, consent, waiver or other Act of such Securityholder or
Trustee under this Article VI, then the determination of such matter by the
Property Trustee shall be conclusive with respect to such matter.

     A Securityholder may institute a legal proceeding directly against the
Depositor under the Guarantee to enforce its rights under the Guarantee without
first instituting a legal proceeding against the Guarantee Trustee (as defined
in the Guarantee), the Trust or any Person.

     Section 6.9.  Inspection of Records.

     Upon reasonable notice to the Administrative Trustees and the Property
Trustee, the records of the Trust shall be open to inspection by Securityholders
during normal business hours for any purpose reasonably related to such
Securityholder's interest as a Securityholder.


                                  ARTICLE VII.

                         REPRESENTATIONS AND WARRANTIES

     Section 7.1.  Representations and Warranties of the Bank.

     The Bank hereby represents and warrants for the benefit of the Depositor
and the Securityholders that:

     (a) the Bank is a Delaware banking corporation duly organized, validly
existing and in good standing under the laws of the State of Delaware;

     (b) the Bank has full corporate power, authority and legal right to
execute, deliver and perform its obligations under this Trust Agreement and has
taken all necessary action to authorize the execution, delivery and performance
by it of this Trust Agreement;

     (c) this Trust Agreement has been duly authorized, executed and delivered
by the Bank and constitutes the valid and legally binding agreement of the Bank
enforceable against it in 

                                      31
<PAGE>
 
accordance with its terms, subject to bankruptcy, insolvency, fraudulent
transfer, reorganization, moratorium and similar laws of general applicability
relating to or affecting creditors' rights and to general equity principles;

     (d) the execution, delivery and performance of this Trust Agreement has
been duly authorized by all necessary corporate or other action on the part of
the Bank and does not require any approval of stockholders of the Bank and such
execution, delivery and performance will not (i) violate the Charter or By-laws
of the Bank, (ii) violate any provision of, or constitute, with or without
notice or lapse of time, a default under, or result in the creation or
imposition of, any Lien on any properties included in the Trust Property
pursuant to the provisions of, any indenture, mortgage, credit agreement,
license or other agreement or instrument to which the Bank is a party or by
which it is bound, or (iii) violate any law, governmental rule or regulation of
the United States or the State of Delaware, as the case may be, governing the
banking, trust or general powers of the Bank or any order, judgment or decree
applicable to the Bank;

     (e) neither the authorization, execution or delivery by the Bank of this
Trust Agreement nor the consummation of any of the transactions by the Property
Trustee or the Delaware Trustee (as appropriate in context) contemplated herein
or therein requires the consent or approval of, the giving of notice to, the
registration with or the taking of any other action with respect to any
governmental authority or agency under any existing Federal law governing the
banking, trust or general powers of the Bank, as the case may be, under the laws
of the United States or the State of Delaware;

     (f) there are no proceedings pending or, to the best the Bank's knowledge,
threatened against or affecting the Property Trustee or the Delaware Trustee in
any court or before any governmental authority, agency or arbitration board or
tribunal which, individually or in the aggregate, would materially and adversely
affect the Trust or would question the right, power and authority of the Bank to
enter into or perform its obligations as one of the Trustees under this Trust
Agreement.

     Section 7.2.  Representations and Warranties of Depositor.

     The Depositor hereby represents and warrants for the benefit of the
Securityholders that:

     (a) the Trust Securities Certificates issued at the Closing Date on behalf
of the Trust have been duly authorized and will have been, duly and validly
executed, issued and delivered by the Trustees pursuant to the terms and
provisions of, and in accordance with the requirements of, this Trust Agreement
and the Securityholders will be, as of each such date, entitled to the benefits
of this Trust Agreement; and

     (b) there are no taxes, fees or other governmental charges payable by the
Trust (or the Trustees on behalf of the Trust) under the laws of the State of
Delaware or any political subdivision thereof in connection with the execution,
delivery and performance by the Bank, the Property Trustee or the Delaware
Trustee, as the case may be, of Bank, this Trust Agreement.

                                      32
<PAGE>
 
                                 ARTICLE VIII.

                                  THE TRUSTEES

     Section 8.1.  Certain Duties and Responsibilities.

     (a) The duties and responsibilities of the Trustees shall be as provided by
this Trust Agreement and, in the case of the Property Trustee, by the Trust
Indenture Act. Notwithstanding the foregoing, no provision of this Trust
Agreement shall require the Trustees to expend or risk their own funds or
otherwise incur any financial liability in the performance of any of their
duties hereunder, or in the exercise of any of their rights or powers, if they
shall have reasonable grounds for believing that repayment of such funds or
adequate indemnity against such risk or liability is not reasonably assured to
it. Whether or not therein expressly so provided, every provision of this Trust
Agreement relating to the conduct or affecting the liability of or affording
protection to the Trustees shall be subject to the provisions of this Section.
No Administrative Trustee or the Delaware Trustee shall be subject to any
liability under this Trust Agreement except for its own grossly negligent
action, its own grossly negligent failure to act, or its own willful misconduct.
To the extent that, at law or in equity, an Administrative Trustee or the
Delaware Trustee has duties (including fiduciary duties) and liabilities
relating thereto to the Trust or to the Securityholders, such Administrative
Trustee or the Delaware Trustee shall not be liable to the Trust or to any
Securityholder for such Trustee's good faith reliance on the provisions of this
Trust Agreement. The provisions of this Trust Agreement, to the extent that they
restrict the duties and liabilities of the Administrative Trustees or the
Delaware Trustee otherwise existing at law or in equity, are agreed by the
Depositor and the Securityholders to replace such other duties and liabilities
of the Administrative Trustees or the Delaware Trustee.

     (b) All payments made by the Property Trustee or a Paying Agent in respect
of the Trust Securities shall be made only from the revenue and proceeds from
the Trust Property and only to the extent that there shall be sufficient revenue
or proceeds from the Trust Property to enable the Property Trustee or a Paying
Agent to make payments in accordance with the terms hereof. Each Securityholder,
by its acceptance of a Trust Security, agrees that it will look solely to the
revenue and proceeds from the Trust Property to the extent legally available for
distribution to it as herein provided and that the Trustees are not personally
liable to it for any amount distributable in respect of any Trust Security or
for any other liability in respect of any Trust Security. This Section 8.1(b)
does not limit the liability of the Trustees expressly set forth elsewhere in
this Trust Agreement or, in the case of the Property Trustee, in the Trust
Indenture Act.

     (c)  No provision of this Trust Agreement shall be construed to relieve the
Property Trustee from liability for its own negligent action, its own negligent
failure to act, or its own willful misconduct, except that:

          (i)   the Property Trustee shall not be liable for any error of
     judgment made in good faith by an authorized officer of the Property
     Trustee, unless it shall be proved that the Property Trustee was negligent
     in ascertaining the pertinent facts;

                                      33
<PAGE>
 
          (ii)  the Property Trustee shall not be liable with respect to any
     action taken or omitted to be taken by it in good faith in accordance with
     the direction of the Holders of the Trust Securities given in accordance
     with this Trust Agreement relating to the time, method and place of
     conducting any proceeding for any remedy available to the Property Trustee,
     or exercising any trust or power conferred upon the Property Trustee under
     this Trust Agreement;

          (iii) the Property Trustee's sole duty with respect to the custody,
     safe keeping and physical preservation of the Debentures and the Payment
     Account shall be to deal with such Property in a similar manner as the
     Property Trustee deals with similar property for its own account, subject
     to the protections and limitations on liability afforded to the Property
     Trustee under this Trust Agreement and the Trust Indenture Act;

          (iv)  the Property Trustee shall not be liable for any interest on any
     money received by it except as it may otherwise agree with the Depositor;
     and money held by the Property Trustee need not be segregated from other
     funds held by it except in relation to the Payment Account maintained by
     the Property Trustee pursuant to Section 3.1 and except to the extent
     otherwise required by law; and

          (v)   the Property Trustee shall not be responsible for monitoring the
     compliance by the Administrative Trustees or the Depositor with their
     respective duties under this Trust Agreement, nor shall the Property
     Trustee be liable for the default or misconduct of the Administrative
     Trustees or the Depositor.

     Section 8.2.  Certain Notices.

     (a) Within 5 Business Days after the occurrence of any Event of Default
actually known to a Responsible Officer of the Property Trustee, the Property
Trustee shall transmit, in the manner and to the extent provided in Section
10.8, notice of such Event of Default to the Securityholders, the Administrative
Trustees and the Depositor, unless the Event of Default shall have been cured or
waived. For purposes of this Section the term "Event of Default" means any event
that is, or after notice or lapse of time or both would become, and Event of
Default.

     (b) The Administrative Trustees shall transmit, to the Securityholders in
the manner and to the extent provided in Section 10.8, notice of the Depositor's
election to begin or further extend an Extension Period on the Debentures
(unless such election shall have been revoked) within the time specified for
transmitting such notice to the holders of the Debentures pursuant to the
Indenture as originally executed.

     Section 8.3.  Certain Rights of Property Trustee.

     Subject to the provisions of Section 8.1:

     (a) the Property Trustee may rely and shall be protected in acting or
refraining from acting in good faith upon any resolution, Opinion of Counsel,
certificate, written representation of 

                                      34
<PAGE>
 
a Holder or transferee, certificate of auditors or any other certificate,
statement, instrument, opinion, report, notice, request, consent, order,
appraisal, bond, debenture, note, other evidence of indebtedness or other paper
or document believed by it to be genuine and to have been signed or presented by
the proper party or parties;

     (b) if (i) in performing its duties under this Trust Agreement the Property
Trustee is required to decide between alternative courses of action or (ii) in
construing any of the provisions of this Trust Agreement the Property Trustee
finds the same ambiguous or inconsistent with any other provisions contained
herein or (iii) the Property Trustee is unsure of the application of any
provision of this Trust Agreement, then, except as to any matter as to which the
Preferred Securityholders are entitled to vote under the terms of this Trust
Agreement, the Property Trustee shall deliver a notice to the Depositor
requesting written instructions of the Depositor as to the course of action to
be taken and the Property Trustee shall take such action, or refrain from taking
such action, as the Property Trustee shall be instructed in writing to take, or
to refrain from taking, by the Depositor; provided, however, that if the
Property Trustee does not receive such instructions of the Depositor within ten
Business Days after it has delivered such notice, or such reasonably shorter
period of time set forth in such notice (which to the extent practicable shall
not be less than two Business Days), it may, but shall be under no duty to, take
or refrain from taking such action not inconsistent with this Trust Agreement as
it shall deem advisable and in the best interests of the Securityholders, in
which event the Property Trustee shall have no liability except for its own bad
faith, negligence or willful misconduct;

     (c) any direction or act of the Depositor or the Administrative Trustees
contemplated by this Trust Agreement shall be sufficiently evidenced by an
Officers' Certificate;

     (d) whenever in the administration of this Trust Agreement, the Property
Trustee shall deem it desirable that a matter be established before undertaking,
suffering or omitting any action hereunder, the Property Trustee (unless other
evidence is herein specifically prescribed) may, in the absence of bad faith on
its part, request and rely upon an Officers' Certificate which, upon receipt of
such request, shall be promptly delivered by the Depositor or the Administrative
Trustees;

     (e) the Property Trustee shall have no duty to see to any recording, filing
or registration of any instrument (including any financing or continuation
statement or any filing under tax or securities laws) or any rerecording,
refiling or registration thereof;

     (f) the Property Trustee may consult with counsel (which counsel may be
counsel to the Depositor or any of its Affiliates, and may include any of its
employees) and the advice of such counsel shall be full and complete
authorization and protection in respect of any action taken, suffered or omitted
by it hereunder in good faith and in reliance thereon and in accordance with
such advice, such counsel may be counsel to the Depositor or any of its
Affiliates, and may include any of its employees; the Property Trustee shall
have the right at any time to seek instructions concerning the administration of
this Trust Agreement from any court of competent jurisdiction;

     (g) the Property Trustee shall be under no obligation to exercise any of
the rights or powers vested in it by this Trust Agreement at the request or
direction of any of the Securityholders 

                                      35
<PAGE>
 
pursuant to this Trust Agreement, unless such Securityholders shall have offered
to the Property Trustee reasonable security or indemnity against the costs,
expenses and liabilities which might be incurred by it in compliance with such
request or direction;

     (h) the Property Trustee shall not be bound to make any investigation into
the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, consent, order, approval, bond,
debenture, note or other evidence of indebtedness or other paper or document,
unless requested in writing to do so by one or more Securityholders, but the
Property Trustee may make such further inquiry or investigation into such facts
or matters as it may see fit;

     (i) the Property Trustee may execute any of the trusts or powers hereunder
or perform any duties hereunder either directly or by or through its agents or
attorneys, provided that the Property Trustee shall be responsible for its own
negligence or recklessness with respect to selection of any agent or attorney
appointed by it hereunder;

     (j) whenever in the administration of this Trust Agreement the Property
Trustee shall deem it desirable to receive instructions with respect to
enforcing any remedy or right or taking any other action hereunder the Property
Trustee (i) may request instructions from the Holders of the Trust Securities
which instructions may only be given by the Holders of the same proportion in
Liquidation Amount of the Trust Securities as would be entitled to direct the
Property Trustee under the terms of the Trust Securities in respect of such
remedy, right or action, (ii) may refrain from enforcing such remedy or right or
taking such other action until such instructions are received, and (iii) shall
be protected in acting in accordance with such instructions; and

     (k) except as otherwise expressly provided by this Trust Agreement, the
Property Trustee shall not be under any obligation to take any action that is
discretionary under the provisions of this Trust Agreement.

     No provision of this Trust Agreement shall be deemed to impose any duty or
obligation on the Property Trustee to perform any act or acts or exercise any
right, power, duty or obligation conferred or imposed on it, in any jurisdiction
in which it shall be illegal, or in which the Property Trustee shall be
unqualified or incompetent in accordance with applicable law, to perform any
such act or acts, or to exercise any such right, power, duty or obligation.  No
permissive power or authority available to the Property Trustee shall be
construed to be a duty.

     Section 8.4.  Not Responsible for Recitals or Issuance of Securities.

     The recitals contained herein and in the Trust Securities Certificates
shall be taken as the statements of the Trust, and the Trustees do not assume
any responsibility for their correctness.  The Trustees shall not be accountable
for the use or application by the Depositor of the proceeds of the Debentures.

     Section 8.5.  May Hold Securities.

                                      36
<PAGE>
 
     Except as provided in the definition of the term "Outstanding" in Article
I, any Trustee or any other agent of any Trustee or the Trust, in its individual
or any other capacity, may become the owner or pledgee of Trust Securities and,
subject to Sections 8.8 and 8.13, may otherwise deal with the Trust with the
same rights it would have if it were not a Trustee or such other agent.

     Section 8.6.  Compensation; Indemnity; Fees.

     The Depositor agrees:

     (a) to pay to the Trustees from time to time reasonable compensation for
all services rendered by them hereunder (which compensation shall not be limited
by any provision of law in regard to the compensation of a trustee of an express
trust) as specified in a separate agreement between any of the Trustees and the
Depositor;

     (b) except as otherwise expressly provided herein, to reimburse the
Trustees upon request for all reasonable expenses, disbursements and advances
incurred or made by the Trustees in accordance with any provision of this Trust
Agreement (including the reasonable compensation and the expenses and
disbursements of its agents and counsel), except any such expense, disbursement
or advance as may be attributable to its negligence, bad faith or willfulness;
and

     (c) to the fullest extent permitted by applicable law, to indemnify and
hold harmless (i) each Trustee, (ii) any Affiliate of any Trustee, (iii) any
officer, director, shareholder, employee, representative or agent of any
Trustee, and (iv) any employee or agent of the Trust or its Affiliates,
(referred to herein as an "Indemnified Person") from and against any loss,
damage, liability, tax, penalty, expense or claim of any kind or nature
whatsoever incurred by such Indemnified Person by reason of the creation,
operation or termination of the Trust or any act or omission performed or
omitted by such Indemnified Person in good faith on behalf of the Trust and in a
manner such Indemnified Person reasonably believed to be within the scope of
authority conferred on such Indemnified Person by this Trust Agreement, except
that no Indemnified Person shall be entitled to be indemnified in respect of any
loss, damage or claim incurred by such Indemnified Person by reason of gross
negligence (or ordinary negligence in the case of the Property Trustee), bad
faith or willful misconduct with respect to such acts or omissions.

     The provisions of this Section 8.6 shall survive the termination of this
Trust Agreement.

     No Trustee may claim any lien or charge on any Trust Property as a result
of any amount due pursuant to this Section 8.6.

     The Depositor and any Trustee may engage in or possess an interest in other
business ventures of any nature or description, independently or with others,
similar or dissimilar to the business of the Trust, and the Trust and the
Holders of Trust Securities shall have no rights by virtue of this Trust
Agreement in and to such independent ventures or the income or profits derived
therefrom, and the pursuit of any such venture, even if competitive with the
business of the Trust, shall not be deemed wrongful or improper. Neither the
Depositor, nor any Trustee, shall be obligated to present any particular
investment or other opportunity to the Trust even if such opportunity is of 

                                      37
<PAGE>
 
a character that, if presented to the Trust, could be taken by the Trust, and
the Depositor or any Trustee shall have the right to take for its own account
(individually or as a partner or fiduciary) or to recommend to others any such
particular investment or other opportunity. Any Trustee may engage or be
interested in any financial or other transaction with the Depositor or any
Affiliate of the Depositor, or may act as depository for, trustee or agent for,
or act on any committee or body of holders of, securities or other obligations
of the Depositor or its Affiliates.

     Section 8.7.  Corporate Property Trustee Required; Eligibility of Trustees.

     (a) There shall at all times be a Property Trustee hereunder with respect
to the Trust Securities.  The Property Trustee shall be a Person that is
eligible pursuant to the Trust Indenture Act to act as such and has a combined
capital and surplus of at least $50,000,000.  If any such Person publishes
reports of condition at least annually, pursuant to law or to the requirements
of its supervising or examining authority, then for the purposes of this
Section, the combined capital and surplus of such Person shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published.  If at any time the Property Trustee with respect to the
Trust Securities shall cease to be eligible in accordance with the provisions of
this Section, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article.

     (b) There shall at all times be one or more Administrative Trustees
hereunder with respect to the Trust Securities.  Each Administrative Trustee
shall be either a natural person who is at least 21 years of age or a legal
entity that shall act through one or more persons authorized to bind that
entity.

     (c) There shall at all times be a Delaware Trustee with respect to the
Trust Securities. The Delaware Trustee shall either be (i) a natural person who
is at least 21 years of age and a resident of the State of Delaware or (ii) a
legal entity with its principal place of business in the State of Delaware and
that otherwise meets the requirements of applicable Delaware law that shall act
through one or more persons authorized to bind such entity.

     Section 8.8.  Conflicting Interests.

     If the Property Trustee has or shall acquire a conflicting interest within
the meaning of the Trust Indenture Act, the Property Trustee shall either
eliminate such interest or resign, to the extent and in the manner provided by,
and subject to the provisions of, the Trust Indenture Act and this Trust
Agreement.

     Section 8.9.  Co-Trustees and Separate Trustee.

     Unless an Event of Default shall have occurred and be continuing, at any
time or times, for the purpose of meeting the legal requirements of the Trust
Indenture Act or of any jurisdiction in which any part of the Trust Property may
at the time be located, the Depositor and the Administrative Trustees, by agreed
action of the majority of such Trustees, shall have power to appoint, and upon
the written request of the Administrative Trustees, the Depositor shall for such
purpose join with the Administrative Trustees in the execution, delivery, and
performance of all instruments and 

                                      38
<PAGE>
 
agreements necessary or proper to appoint, one or more Persons approved by the
Property Trustee either to act as co-trustee, jointly with the Property Trustee,
of all or any part of such Trust Property, or to the extent required by law to
act as separate trustee of any such property, in either case with such powers as
may be provided in the instrument of appointment, and to vest in such Person or
Persons in the capacity aforesaid, any property, title, right or power deemed
necessary or desirable, subject to the other provisions of this Section. If the
Depositor does not join in such appointment within 15 days after the receipt by
it of a request so to do, or in case a Debenture Event of Default has occurred
and is continuing, the Property Trustee alone shall have power to make such
appointment. Any co-trustee or separate trustee appointed pursuant to this
Section shall either be (i) a natural person who is at least 21 years of age and
a resident of the United States or (ii) a legal entity with its principal place
of business in the United States that shall act through one or more persons
authorized to bind such entity.

     Should any written instrument from the Depositor be required by any co-
trustee or separate trustee so appointed for more fully confirming to such co-
trustee or separate trustee such property, title, right, or power, any and all
such instruments shall, on request, be executed, acknowledged and delivered by
the Depositor.

     Every co-trustee or separate trustee shall, to the extent permitted by law,
but to such extent only, be appointed subject to the following terms, namely:

     (a) The Trust Securities shall be executed and delivered and all rights,
powers, duties, and obligations hereunder in respect of the custody of
securities, cash and other personal property held by, or required to be
deposited or pledged with, the Trustees specified hereunder shall be exercised
solely by such Trustees and not by such co-trustee or separate trustee.

     (b) The rights, powers, duties, and obligations hereby conferred or imposed
upon the Property Trustee in respect of any property covered by such appointment
shall be conferred or imposed upon and exercised or performed by the Property
Trustee or by the Property Trustee and such co-trustee or separate trustee
jointly, as shall be provided in the instrument appointing such co-trustee or
separate trustee, except to the extent that under any law of any jurisdiction in
which any particular act is to be performed, the Property Trustee shall be
incompetent or unqualified to perform such act, in which event such rights,
powers, duties and obligations shall be exercised and performed by such co-
trustee or separate trustee.

     (c) The Property Trustee at any time, by an instrument in writing executed
by it, with the written concurrence of the Depositor, may accept the resignation
of or remove any co-trustee or separate trustee appointed under this Section,
and, in case a Debenture Event of Default has occurred and is continuing, the
Property Trustee shall have power to accept the resignation of, or remove, any
such co-trustee or separate trustee without the concurrence of the Depositor.
Upon the written request of the Property Trustee, the Depositor shall join with
the Property Trustee in the execution, delivery and performance of all
instruments and agreements necessary or proper to effectuate such resignation or
removal.  A successor to any co-trustee or separate trustee so resigned or
removed may be appointed in the manner provided in this Section.

                                      39
<PAGE>
 
     (d) No co-trustee or separate trustee hereunder shall be personally liable
by reason of any act or omission of the Property Trustee or any other trustee
hereunder.

     (e) The Property Trustee shall not be liable by reason of any act of a co-
trustee or separate trustee.

     (f) Any Act of Holders delivered to the Property Trustee shall be deemed to
have been delivered to each such co-trustee and separate trustee.

     Section 8.10. Resignation and Removal; Appointment of Successor.

     No resignation or removal of any Trustee (the "Relevant Trustee") and no
appointment of a successor Trustee pursuant to this Article shall become
effective until the acceptance of appointment by the successor Trustee in
accordance with the applicable requirements of Section 8.11.

     Subject to the immediately preceding paragraph, the Relevant Trustee may
resign at any time by giving written notice thereof to the Common
Securityholder. If the instrument of acceptance by the successor Trustee
required by Section 8.11 shall not have been delivered to the Relevant Trustee
within 30 days after the giving of such notice of resignation, the Relevant
Trustee may petition, at the expense of the Trust, any court of competent
jurisdiction for the appointment of a successor Relevant Trustee.

     Unless a Debenture Event of Default shall have occurred and be continuing,
any Trustee may be removed at any time by Act of the Common Securityholder. If a
Debenture Event of Default shall have occurred and be continuing, the Property
Trustee or the Delaware Trustee, or both of them, may be removed at such time by
Act of the Holders of a majority in Liquidation Amount of the Preferred
Securities, delivered to the Relevant Trustee (in its individual capacity and on
behalf of the Trust). In no event will the Holders of the Preferred Securities
have the right to vote to appoint, remove or replace the Administrative Trustee.
An Administrative Trustee may be removed by the Common Securityholder at any
time.

     If any Trustee shall resign, be removed or become incapable of acting as
Trustee, or if a vacancy shall occur in the office of any Trustee for any cause,
at a time when no Debenture Event of Default shall have occurred and be
continuing, the Common Securityholder, by Act of the Common Securityholder
delivered to the retiring Trustee, shall promptly appoint a successor Trustee or
Trustees, and the retiring Trustee shall comply with the applicable requirements
of Section 8.11. If the Property Trustee or the Delaware Trustee shall resign,
be removed or become incapable of continuing to act as the Property Trustee or
the Delaware Trustee, as the case may be, at a time when a Debenture Event of
Default shall have occurred and be continuing, the Preferred Securityholders, by
Act of the Securityholders of a majority in Liquidation Amount of the Preferred
Securities then Outstanding delivered to the retiring Relevant Trustee, shall
promptly appoint a successor Relevant Trustee or Trustees, and such successor
Trustee shall comply with the applicable requirements of Section 8.11. If an
Administrative Trustee shall resign, be removed or become incapable of acting as
Administrative Trustee, at a time when a Debenture Event of Default shall have
occurred and be 

                                      40
<PAGE>
 
continuing, the Common Securityholder by Act of the Common Securityholder
delivered to the Administrative Trustee shall promptly appoint a successor
Administrative Trustee or Administrative Trustees and such successor
Administrative Trustee or Trustees shall comply with the applicable requirements
of Section 8.11. If no successor Relevant Trustee shall have been so appointed
by the Common Securityholder or the Preferred Securityholders and accepted
appointment in the manner required by Section 8.11, any Securityholder who has
been a Securityholder of Trust Securities for at least six months may, on behalf
of himself and all others similarly situated, petition any court of competent
jurisdiction for the appointment of a successor Relevant Trustee.

     The Property Trustee shall give notice of each resignation and each removal
of a Trustee and each appointment of a successor Trustee to all Securityholders
in the manner provided in Section 10.8 and shall give notice to the Depositor.
Each notice shall include the name of the successor Relevant Trustee and the
address of its Corporate Trust Office if it is the Property Trustee.

     Notwithstanding the foregoing or any other provision of this Trust
Agreement, in the event any Administrative Trustee or a Delaware Trustee who is
a natural person dies or becomes, in the opinion of the Depositor, incompetent
or incapacitated, the vacancy created by such death, incompetence or incapacity
may be filled by (a) the unanimous act of the remaining Administrative Trustees
if there are at least two of them or (b) otherwise by the Depositor (with the
successor in each case being a Person who satisfies the eligibility requirement
for Administrative Trustees or Delaware Trustee, as the case may be, set forth
in Section 8.7).

     Section 8.11. Acceptance of Appointment by Successor.

     In case of the appointment hereunder of a successor Trustee such successor
Trustee so appointed shall execute, acknowledge and deliver to the Trust and to
the retiring Trustee an instrument accepting such appointment, and thereupon the
resignation or removal of the retiring Trustee shall become effective and such
successor Trustee, without any further act, deed or conveyance, shall become
vested with all the rights, powers, trusts and duties of the retiring Trustee;
but, on the request of the Depositor or the successor Trustee, such retiring
Trustee shall, upon payment of its charges, execute and deliver an instrument
transferring to such successor Trustee all the rights, powers and trusts of the
retiring Trustee and if the Property Trustee is the resigning Trustee shall duly
assign, transfer and deliver to the successor Trustee all property and money
held by such retiring Property Trustee hereunder.

     In case of the appointment hereunder of a successor Relevant Trustee, the
retiring Relevant Trustee and each successor Relevant Trustee with respect to
the Trust Securities shall execute and deliver an amendment hereto wherein each
successor Relevant Trustee shall accept such appointment and which (a) shall
contain such provisions as shall be necessary or desirable to transfer and
confirm to, and to vest in, each successor Relevant Trustee all the rights,
powers, trusts and duties of the retiring Relevant Trustee with respect to the
Trust Securities and the Trust and (b) shall add to or change any of the
provisions of this Trust Agreement as shall be necessary to provide for or
facilitate the administration of the Trust by more than one Relevant Trustee, it
being understood that nothing herein or in such amendment shall constitute such
Relevant Trustees co-trustees and upon the execution and delivery of such
amendment the resignation or removal of the retiring Relevant 

                                      41
<PAGE>
 
Trustee shall become effective to the extent provided therein and each such
successor Relevant Trustee, without any further act, deed or conveyance, shall
become vested with all the rights, powers, trusts and duties of the retiring
Relevant Trustee; but, on request of the Trust or any successor Relevant Trustee
such retiring Relevant Trustee shall duly assign, transfer and deliver to such
successor Relevant Trustee all Trust Property, all proceeds thereof and money
held by such retiring Relevant Trustee hereunder with respect to the Trust
Securities and the Trust.

     Upon request of any such successor Relevant Trustee, the Trust shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Relevant Trustee all such rights, powers and trusts
referred to in the first or second preceding paragraph, as the case may be.

     No successor Relevant Trustee shall accept its appointment unless at the
time of such acceptance such successor Relevant Trustee shall be qualified and
eligible under this Article.

     Section 8.12. Merger, Conversion, Consolidation or Succession to Business.

     Any Person into which the Property Trustee or the Delaware Trustee may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which such Relevant
Trustee shall be a party, or any corporation succeeding to all or substantially
all the corporate trust business of such Relevant Trustee, shall be the
successor of such Relevant Trustee hereunder, provided such corporation shall be
otherwise qualified and eligible under this Article, without the execution or
filing of any paper or any further act on the part of any of the parties hereto.

     Section 8.13. Preferential Collection of Claims Against Depositor or Trust.

     In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
similar judicial proceeding relative to the Trust or any other obligor upon the
Trust Securities or the property of the Trust or of such other obligor or their
creditors, the Property Trustee (irrespective of whether any Distributions on
the Trust Securities shall then be due and payable as therein expressed or by
declaration or otherwise and irrespective of whether the Property Trustee shall
have made any demand on the Trust for the payment of any past due Distributions)
shall be entitled and empowered, to the fullest extent permitted by law, by
intervention in such proceeding or otherwise:

     (a) to file and prove a claim for the whole amount of any Distributions
owing and unpaid in respect of the Trust Securities and to file such other
papers or documents as may be necessary or advisable in order to have the claims
of the Property Trustee (including any claim for the reasonable compensation,
expenses, disbursements and advances of the Property Trustee, its agents and
counsel) and of the Holders allowed in such judicial proceeding, and

     (b) to collect and receive any moneys or other property payable or
deliverable on any such claims and to distribute the same; and any custodian,
receiver, assignee, trustee, liquidator, sequestrator or other similar official
in any such judicial proceeding is hereby authorized by each 

                                      42
<PAGE>
 
Holder to make such payments to the Property Trustee and, in the event the
Property Trustee shall consent to the making of such payments directly to the
Holders, to pay to the Property Trustee any amount due it for the reasonable
compensation, expenses, disbursements and advances of the Property Trustee, its
agents and counsel, and any other amounts due the Property Trustee.

     Nothing herein contained shall be deemed to authorize the Property Trustee
to authorize or consent to or accept or adopt on behalf of any Holder any plan
of reorganization, arrangement adjustment or compensation affecting the Trust
Securities or the rights of any Holder thereof or to authorize the Property
Trustee to vote in respect of the claim of any Holder in any such proceeding.

     Section 8.14. Reports by Property Trustee.

     (a) Not later than March 31 of each year commencing with the year following
the year ending December 31, 1997, the Property Trustee shall transmit to all
Securityholders in accordance with Section 10.8, and to the Depositor, a brief
report dated as of the immediately preceding December 31 with respect to:

         (i)   its eligibility under Section 8.7 or, in lieu thereof, if to the
     best of its knowledge it has continued to be eligible under said Section, a
     written statement to such effect;

         (ii)  a statement that the Property Trustee has complied with all of
     its obligations under this Trust Agreement during the twelve-month period
     (or, in the case of the initial report, the period since the Closing Date)
     ending with such December 31 or, if the Property Trustee has not complied
     in any material respect with such obligations, a description of such
     noncompliance; and

         (iii) any change in the property and funds in its possession as
     Property Trustee since the date of its last report and any action taken by
     the Property Trustee in the performance of its duties hereunder which it
     has not previously reported and which in its opinion materially affects the
     Trust Securities.

     (b) In addition the Property Trustee shall transmit to Securityholders such
reports concerning the Property Trustee and its actions under this Trust
Agreement as may be required pursuant to the Trust Indenture Act at the times
and in the manner provided pursuant thereto.

     (c) A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Property Trustee with each national stock exchange, the
Nasdaq National Market or such other interdealer quotation system or self-
regulatory organization upon which the Trust Securities are listed or traded,
with the Commission and with the Depositor.

     Section 8.15. Reports to the Property Trustee.

     The Depositor and the Administrative Trustees on behalf of the Trust shall
provide to the Property Trustee such documents, reports and information as
required by Section 314 of the Trust 

                                      43
<PAGE>
 
Indenture Act (if any) and the compliance certificate required by Section 314(a)
of the Trust Indenture Act in the form, in the manner and at the times required
by Section 314 of the Trust Indenture Act.

     Section 8.16. Evidence of Compliance with Conditions Precedent.

     Each of the Depositor and the Administrative Trustees on behalf of the
Trust shall provide to the Property Trustee such evidence of compliance with any
conditions precedent, if any, provided for in this Trust Agreement that relate
to any of the matters set forth in Section 314 (c) of the Trust Indenture Act.
Any certificate or opinion required to be given by an officer pursuant to
Section 314(c)(1) of the Trust Indenture Act shall be given in the form of an
Officers' Certificate.

     Section 8.17. Number of Trustees.

     (a) The number of Trustees shall be five (5) provided that the Holder of
all of the Common Securities by written instrument may increase or decrease the
number of Administrative Trustees. The Property Trustee and the Delaware Trustee
may be the same Person.

     (b) If a Trustee ceases to hold office for any reason and the number of
Administrative Trustees is not reduced pursuant to Section 8.17(a), or if the
number of Trustees is increased pursuant to Section 8.17(a), a vacancy shall
occur.  The vacancy shall be filled with a Trustee appointed in accordance with
Section 8.10.

     (c) The death, resignation, retirement, removal, bankruptcy, incompetence
or incapacity to perform the duties of a Trustee shall not operate to annul the
Trust.  Whenever a vacancy in the number of Administrative Trustees shall occur,
until such vacancy is filled by the appointment of an Administrative Trustee in
accordance with Section 8.10, the Administrative Trustees in office, regardless
of their number (and notwithstanding any other provision of this Agreement),
shall have all the powers granted to the Administrative Trustees and shall
discharge all the duties imposed upon the Administrative Trustees by this Trust
Agreement.

     Section 8.18. Delegation of Power.

     (a) Any Administrative Trustee may, by power of attorney consistent with
applicable law, delegate to any other natural person over the age of 21 his or
her power for the purpose of executing any documents contemplated in Section
2.7(a), including any registration statement or amendment thereto filed with the
Commission, or making any other governmental filing; and

     (b) The Administrative Trustees shall have power to delegate from time to
time to such of their number or to the Depositor the doing of such things and
the execution of such instruments either in the name of the Trust or the names
of the Administrative Trustees or otherwise as the Administrative Trustees may
deem expedient, to the extent such delegation is not prohibited by applicable
law or contrary to the provisions of this Trust Agreement, as set forth herein.

     Section 8.19. Voting.

                                      44
<PAGE>
 
     Except as otherwise provided in this Trust Agreement, the consent or
approval of the Administrative Trustees shall require consent or approval by not
less than a majority of the Administrative Trustees, unless there are only two,
in which case both must consent.


                                  ARTICLE IX.

                      TERMINATION, LIQUIDATION AND MERGER

     Section 9.1.  Termination Upon Expiration Date.

     Unless dissolved earlier, the Trust shall automatically dissolve on
December 31, 2028 (the "Expiration Date"), following the distribution of the
Trust Property in accordance with Section 9.4.

     Section 9.2.  Early Termination.

     The first to occur of any of the following events is an "Early Termination
Event":

     (a) the occurrence of a Bankruptcy Event in respect of, or the dissolution
or liquidation of, the Depositor;

     (b) the written direction to the Property Trustee from the Depositor at any
time to dissolve the Trust and distribute Debentures to Securityholders in
exchange for a Like Amount of the Preferred Securities (which direction is
optional and wholly within the discretion of the Depositor);

     (c) the redemption of all of the Preferred Securities in connection with
the redemption of all the Debentures; and

     (d) the entry of an order for dissolution of the Trust by a court of
competent jurisdiction.

     Section 9.3.  Termination.

     The respective obligations and responsibilities of the Trustees and the
Trust created and continued hereby shall terminate upon the latest to occur of
the following: (a) the distribution by the Property Trustee to Securityholders
upon the liquidation of the Trust pursuant to Section 9.4, or upon the
redemption of all of the Trust Securities pursuant to Section 4.2, of all
amounts required to be distributed hereunder upon the final payment of the Trust
Securities; (b) the payment of any expenses owed by the Trust; and (c) the
discharge of all administrative duties of the Administrative Trustees, including
the performance of any tax reporting obligations with respect to the Trust or
the Securityholders, and (d) the filing of a Certificate of Cancellation by the
Administrative Trustee under the Business Trust Act.

     Section 9.4.  Liquidation.

                                      45
<PAGE>
 
     (a) If an Early Termination Event specified in clause (a), (b) or (d) of
Section 9.2 occurs or upon the Expiration Date, the Trust shall be liquidated by
the Trustees as expeditiously as the Trustees determine to be possible by
distributing, after satisfaction of liabilities to creditors of the Trust as
provided by applicable law, to each Securityholder a Like Amount of Debentures,
subject to Section 9.4(d).  Notice of liquidation shall be given by the Property
Trustee by first-class mail, postage prepaid mailed not later than 30 nor more
than 60 days prior to the Liquidation Date to each Holder of Trust Securities at
such Holder's address appearing in the Securities Register. All notices of
liquidation shall:

          (i)   state the Liquidation Date;

          (ii)  state that from and after the Liquidation Date, the Trust
     Securities will no longer be deemed to be Outstanding and any Trust
     Securities Certificates not surrendered for exchange will be deemed to
     represent a Like Amount of Debentures; and

          (iii) provide such information with respect to the mechanics by which
     Holders may exchange Trust Securities Certificates for certificates
     representing the Like Amount of the Debentures, or if Section 9.4(d)
     applies receive a Liquidation Distribution, as the Administrative Trustees
     or the Property Trustee shall deem appropriate.

     (b) Except where Section 9.2(c) or 9.4(d) applies, in order to effect the
liquidation of the Trust and distribution of the Debentures to Securityholders,
the Administrative Trustees shall establish a record date for such distribution
(which shall be not more than 45 days prior to the Liquidation Date) and, either
itself acting as exchange agent or through the appointment of a separate
exchange agent, shall establish such procedures as it shall deem appropriate to
effect the distribution of Debentures in exchange for the Outstanding Trust
Securities Certificates.

     (c) Except where Section 9.2(c) or 9.4(d) applies, after the Liquidation
Date, (i) the Trust Securities will no longer be deemed to be Outstanding, (ii)
certificates representing a Like Amount of Debentures will be issued to holders
of Trust Securities Certificates, upon surrender of such certificates to the
Administrative Trustees or their agent for exchange, (iii) the Depositor shall
use its best efforts to have the Debentures listed on the New York Stock
Exchange or on such other exchange, interdealer quotation system or self-
regulatory organization as the Preferred Securities are then listed, (iv) any
Trust Securities Certificates not so surrendered for exchange will be deemed to
represent a Like Amount of Debentures, accruing interest at the rate provided
for in the Debentures from the last Distribution Date on which a Distribution
was made on such Trust Securities Certificates until such certificates are so
surrendered (and until such certificates are so surrendered, no payments of
interest or principal will be made to Holders of Debentures represented by such
certificates) and (v) all rights of Securityholders holding Trust Securities
will cease, except the right of such Securityholders to receive a Like Amount of
Debentures upon surrender of Trust Securities Certificates.

     (d) In the event that, notwithstanding the other provisions of this Section
9.4, whether because of an order for dissolution entered by a court of competent
jurisdiction or otherwise, distribution of the Debentures in the manner provided
herein is determined by the Property Trustee 

                                      46
<PAGE>
 
not to be practical, the Trust Property shall be liquidated, and the Trust shall
be dissolved, wound-up or terminated, by the Property Trustee in such manner as
the Property Trustee determines. In such event, on the date of the dissolution,
winding-up or other termination of the Trust, Securityholders will be entitled
to receive out of the assets of the Trust available for distribution to
Securityholders, after satisfaction of liabilities to creditors of the Trust as
provided by applicable law, an amount equal to the Liquidation Amount per Trust
Security plus accumulated and unpaid Distributions thereon to the date of
payment (such amount being the "Liquidation Distribution"). If, upon any such
dissolution, winding up or termination, the Liquidation Distribution can be paid
only in part because the Trust has insufficient assets available to pay in full
the aggregate Liquidation Distribution, then, subject to the next succeeding
sentence, the amounts payable by the Trust on the Trust Securities shall be paid
on a pro rata basis (based upon Liquidation Amounts). The holder of the Common
Securities will be entitled to receive Liquidation Distributions upon any such
dissolution, winding-up or termination pro rata (determined as aforesaid) with
Holders of Preferred Securities, except that, if a Debenture Event of Default
has occurred and is continuing, Holders of the Preferred Securities shall have a
priority over the Holders of Common Securities.

     Section 9.5.  Mergers, Consolidations, Amalgamations or Replacements of
the Trust.

     The Trust may not merge with or into, consolidate, amalgamate, or be
replaced by, or convey, transfer or lease its properties and assets
substantially as an entirety to any corporation or other body, except pursuant
to this Section 9.5. At the request of the Depositor, with the consent of the
Administrative Trustees and without the consent of the Holders of the Preferred
Securities, the Property Trustee or the Delaware Trustee, the Trust may merge
with or into, consolidate, amalgamate, or be replaced by or convey, transfer or
lease its properties and assets substantially as an entirety to a trust
organized as such under the laws of any State; provided, that (i) such successor
entity either (a) expressly assumes all of the obligations of the Trust with
respect to the Preferred Securities or (b) substitutes for the Preferred
Securities other securities having substantially the same terms as the Preferred
Securities (the "Successor Securities") so long as the Successor Securities rank
the same as the Preferred Securities rank in priority with respect to
distributions and payments upon liquidation, redemption and otherwise, (ii) the
Depositor expressly appoints a trustee of such successor entity possessing the
same powers and duties as the Property Trustee as the holder of the Debentures,
(iii) the Successor Securities are listed or traded, or any Successor Securities
will be listed upon notification of issuance, on any national securities
exchange or other organization on which the Preferred Securities are then listed
or traded, if any, (iv) such merger, consolidation, amalgamation, replacement,
conveyance, transfer or lease does not cause the Preferred Securities (including
any Successor Securities) to be downgraded by any nationally recognized
statistical rating organization, (v) such merger, consolidation, amalgamation,
replacement, conveyance, transfer or lease does not adversely affect the rights,
preferences and privileges of the holders of the Preferred Securities (including
any Successor Securities) in any material respect, (vi) such successor entity
has a purpose identical to that of the Trust, (vii) prior to such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease, the
Depositor has received an Opinion of Counsel to the effect that (a) such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease does not
adversely affect the rights, preferences and privileges of the holders of the
Preferred Securities (including any Successor Securities) in any material
respect, and (b) following such merger, consolidation, amalgamation,
replacement, conveyance, transfer or lease, neither the Trust 

                                      47
<PAGE>
 
nor such successor entity will be required to register as an investment company
under the 1940 Act and (viii) the Depositor owns all of the Common Securities of
such successor entity and guarantees the obligations of such successor entity
under the Successor Securities at least to the extent provided by the Guarantee.
Notwithstanding the foregoing, the Trust shall not, except with the consent of
holders of 100% in Liquidation Amount of the Preferred Securities, consolidate,
amalgamate, merge with or into, or be replaced by or convey, transfer or lease
its properties and assets substantially as an entirety to any other entity or
permit any other entity to consolidate, amalgamate, merge with or into, or
replace it if such consolidation, amalgamation, merger, replacement, conveyance,
transfer or lease would cause the Trust or the successor entity to be classified
as other than a grantor trust for United States Federal income tax purposes.


                                   ARTICLE X.

                            MISCELLANEOUS PROVISIONS

     Section 10.1. Limitation of Rights of Securityholders.

     The death or incapacity of any person having an interest, beneficial or
otherwise, in Trust Securities shall not operate to terminate this Trust
Agreement, nor entitle the legal representatives or heirs of such person or any
Securityholder for such person, to claim an accounting, take any action or bring
any proceeding in any court for a partition or winding up of the arrangements
contemplated hereby, nor otherwise affect the rights, obligations and
liabilities of the parties hereto or any of them.

     Section 10.2. Amendment.

     (a) This Trust Agreement may be amended from time to time by the Property
Trustee, the Administrative Trustees and the Depositor, without the consent of
any Securityholders, (i) to cure any ambiguity, correct or supplement any
provision herein which may be inconsistent with any other provision herein, or
to make any other provisions with respect to matters or questions arising under
this Trust Agreement, which shall not be inconsistent with the other provisions
of this Trust Agreement, or (ii) to modify, eliminate or add to any provisions
of this Trust Agreement to such extent as shall be necessary to ensure that the
 Trust will be classified for United States Federal income tax purposes as a
grantor trust at all times that any Trust Securities are outstanding or to
ensure that the Trust will not be required to register as an investment company
under the 1940 Act; provided, however, that in the case of clause (i), such
action shall not adversely affect in any material respect the interests of any
Securityholder, and any amendments of this Trust Agreement shall become
effective when notice thereof is given to the Securityholders.

     (b) Except as provided in Section 10.2(c) hereof, any provision of this
Trust Agreement may be amended by the Administrative Trustees and the Property
Trustee with (i) the consent of Trust Securityholders representing not less than
a majority (based upon Liquidation Amounts) of the Trust Securities then
Outstanding and (ii) receipt by the Trustees of an Opinion of Counsel to the
effect that such amendment or the exercise of any power granted to the Trustees
in accordance with 

                                      48
<PAGE>
 
such amendment will not affect the Trust's status as a grantor trust for United
States Federal income tax purposes or the Trust's exemption from status of an
investment company under the 1940 Act.

     (c) In addition to and notwithstanding any other provision in this Trust
Agreement, without the consent of each affected Securityholder (such consent
being obtained in accordance with Section 6.3 or 6.6 hereof), this Trust
Agreement may not be amended to (i) change the amount or timing of any
Distribution on the Trust Securities or otherwise adversely affect the amount of
any Distribution required to be made in respect of the Trust Securities as of a
specified date or (ii) restrict the right of a Securityholder to institute suit
for the enforcement of any such payment on or after such date; notwithstanding
any other provision herein, without the unanimous consent of the Securityholders
(such consent being obtained in accordance with Section 6.3 or 6.6 hereof), this
paragraph (c) of this Section 10.2 may not be amended.

     (d) Notwithstanding any other provisions of this Trust Agreement, no
Administrative Trustee shall enter into or consent to any amendment to this
Trust Agreement which would cause the Trust to fail or cease to qualify for the
exemption from status of an investment company under the 1940 Act or fail or
cease to be classified as a grantor trust for United States Federal income tax
purposes.

     (e) Notwithstanding anything in this Trust Agreement to the contrary,
without the consent of the Delaware Trustee or the Depositor, as the case may
be, this Trust Agreement may not be amended in a manner which imposes any
additional obligation on the Depositor or the Delaware Trustee.

     (f) In the event that any amendment to this Trust Agreement is made, the
Administrative Trustees shall promptly provide to the Depositor a copy of such
amendment.

     (g) Neither the Property Trustee nor the Delaware Trustee shall be required
to enter into any amendment to this Trust Agreement which affects its own
rights, duties or immunities under this Trust Agreement. The Property Trustee
shall be entitled to receive an Opinion of Counsel and an Officers' Certificate
stating that any amendment to this Trust Agreement is in compliance with this
Trust Agreement.

     Section 10.3. Counterparts.

     This Trust Agreement may be executed in one or more counterparts, each of
which shall be an original and all of which shall constitute one and the same
instrument.

     Section 10.4. Separability.

     In case any provision in this Trust Agreement or in the Trust Securities
Certificates shall be invalid, illegal or unenforceable, the validity, legality
and enforceability of the remaining provisions shall not in any way be affected
or impaired thereby.

     Section 10.5. Governing Law.

                                      49
<PAGE>
 
     THIS TRUST AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF EACH OF THE
SECURITYHOLDERS, THE TRUST AND THE TRUSTEES WITH RESPECT TO THIS TRUST AGREEMENT
AND THE TRUST SECURITIES SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY
THE LAWS OF THE STATE OF DELAWARE (WITHOUT REGARD TO CONFLICT OF LAWS
PRINCIPLES).

     Section 10.6. Payments Due on Non-Business Day.

     If the date fixed for any payment on any Trust Security shall be a day that
is not a Business Day, then such payment need not be made on such date but may
be made on the next succeeding day that is a Business Day (except as otherwise
provided in Sections 4.1(a) and 4.2(d)), with the same force and effect as
though made on the date fixed for such payment, and no interest shall accrue
thereon for the period after such date.

     Section 10.7. Successors.

     This Trust Agreement shall be binding upon and shall inure to the benefit
of any successor to the Depositor, the Trust or the Relevant Trustee, including
any successor by operation of law. Except in connection with a consolidation,
merger or sale involving the Depositor that is permitted under Article Eight of
the Indenture and pursuant to which the assignee agrees in writing to perform
the Depositor's obligations hereunder, the Depositor shall not assign its
obligations hereunder.

     Section 10.8. Headings.

     The Article and Section headings are for convenience only and shall not
affect the construction of this Trust Agreement.

     Section 10.9. Reports, Notices and Demands.

     Any report, notice, demand or other communication which by any provision of
this Trust Agreement is required or permitted to be given or served to or upon
any Securityholder or the Depositor may be given or served in writing by deposit
thereof, first-class postage prepaid, in the United States mail, hand delivery
or facsimile transmission, in each case, addressed, (a) in the case of a
Preferred Securityholder, to such Preferred Securityholder as such
Securityholder's name and address may appear on the Securities Register; and (b)
in the case of the Common Securityholder or the Depositor, to Greater Bay
Bancorp, 2860 West Bayshore Road, Palo Alto, California, 94303, Attention:
Steven C. Smith, facsimile number: (415) 494-9220. Any notice to Preferred
Securityholders shall also be given to such owners as have, within two years
preceding the giving of such notice, filed their names and addresses with the
Property Trustee for that purpose. Such notice, demand or other communication to
or upon a Securityholder shall be deemed to have been sufficiently given or
made, for all purposes, upon hand delivery, mailing or transmission.

     Any notice, demand or other communication which by any provision of this
Trust Agreement is required or permitted to be given or served to or upon the
Trust, the Property Trustee, the Delaware Trustee or the Administrative Trustees
shall be given in writing addressed (until another 

                                      50
<PAGE>
 
address is published by the Trust) as follows: (a) with respect to the Property
Trustee to Wilmington Trust Company, Rodney Square North, 1100 North Market
Street, Wilmington , Delaware 19890-0001; (b) with respect to the Delaware
Trustee, to Wilmington Trust Company, Rodney Square North, 1100 North Market
Street, Wilmington, Delaware 19890-0001, Attention: Corporate Trust
Administration; and (c) with respect to the Administrative Trustees, to them at
the address above for notices to the Depositor, marked "Attention Administrative
Trustees of GBB Capital I." Such notice, demand or other communication to or
upon the Trust or the Property Trustee shall be deemed to have been sufficiently
given or made only upon actual receipt of the writing by the Trust or the
Property Trustee.

     Section 10.10. Agreement Not to Petition.

     Each of the Trustees and the Depositor agree for the benefit of the
Securityholders that, until at least one year and one day after the Trust has
been terminated in accordance with Article IX, they shall not file, or join in
the filing of, a petition against the Trust under any Bankruptcy Laws or
otherwise join in the commencement of any proceeding against the Trust under any
Bankruptcy Law. In the event the Depositor takes action in violation of this
Section 10.9, the Property Trustee agrees, for the benefit of Securityholders,
that at the expense of the Depositor, it shall file an answer with the
bankruptcy court or otherwise properly contest the filing of such petition by
the Depositor against the Trust or the commencement of such action and raise the
defense that the Depositor has agreed in writing not to take such action and
should be stopped and precluded therefrom and such other defenses, if any, as
counsel for the Trustee or the Trust may assert.  The provisions of this Section
10.9 shall survive the termination of this Trust Agreement.

     Section 10.11. Trust Indenture Act; Conflict with Trust Indenture Act.

     (a) This Trust Agreement is subject to the provisions of the Trust
Indenture Act that are required to be part of this Trust Agreement and shall, to
the extent applicable, be governed by such provisions.

     (b) The Property Trustee shall be the only Trustee which is a trustee for
the purposes of the Trust Indenture Act.

     (c) If any provision hereof limits, qualifies or conflicts with another
provision hereof which is required to be included in this Trust Agreement by any
of the provisions of the Trust Indenture Act, such required provision shall
control.  If any provision of this Trust Agreement modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
latter provision shall be deemed to apply to this Trust Agreement as so modified
or excluded, as the case may be.

     (d) The application of the Trust Indenture Act to this Trust Agreement
shall not affect the nature of the Securities as equity securities representing
undivided beneficial interests in the assets of the Trust.

     Section 10.12. Acceptance of Terms of Trust Agreement, Guarantee and
Indenture.

                                      51
<PAGE>
 
     THE RECEIPT AND ACCEPTANCE OF A TRUST SECURITY OR ANY INTEREST THEREIN BY
OR ON BEHALF OF A SECURITYHOLDER OR ANY BENEFICIAL OWNER, WITHOUT ANY SIGNATURE
OR FURTHER MANIFESTATION OF ASSENT, SHALL CONSTITUTE THE UNCONDITIONAL
ACCEPTANCE BY THE SECURITYHOLDER AND ALL OTHERS HAVING A BENEFICIAL INTEREST IN
SUCH TRUST SECURITY OF ALL THE TERMS AND PROVISIONS OF THIS TRUST AGREEMENT AND
AGREEMENT TO THE SUBORDINATION PROVISIONS AND OTHER TERMS OF THE GUARANTEE AND
THE INDENTURE, AND SHALL CONSTITUTE THE AGREEMENT OF THE TRUST, SUCH
SECURITYHOLDER AND SUCH OTHERS THAT THE TERMS AND PROVISIONS OF THIS TRUST
AGREEMENT SHALL BE BINDING, OPERATIVE AND EFFECTIVE AS BETWEEN THE TRUST AND
SUCH SECURITYHOLDER AND SUCH OTHERS.

                                   Greater Bay Bancorp


                                   By:/s/ Steven C. Smith          
                                      --------------------------   
                                      Name:                      
                                      Title:                     
                                                                   
                                                                   
                                   Wilmington Trust Company,       
                                    as Property Trustee         
                                                                   
                                                                   
                                   By:/s/ James Lawler             
                                      ---------------------------  
                                      Name:                      
                                      Title:                     
                                                                   
                                                                   
                                   Wilmington Trust Company,       
                                    as Delaware Trustee         
                                                                   
                                                                   
                                   By:/s/ James Lawler             
                                      ---------------------------  
                                      Name:                      
                                      Title:                     
                                                                   
                                                                   
                                   /s/ David L. Kalkbrenner        
                                   ----------------------------    
                                   David l. Kalkbrenner,           
                                    as Administrative Trustee  
                                                                   
                                                                   
                                   /s/ Steven C. Smith             
                                   ------------------------------- 
                                   Steven C. Smith,                
                                    as Administrative Trustee   
<PAGE>
 
                                   /s/ James R. Ramsey
                                   -----------------------------
                                   James R. Ramsey,
                                    as Administrative Trustee

<PAGE>
 
                                                                   EXHIBIT 4.7 



This Trust Preferred Security is a Global Certificate within the meaning of the
Trust Agreement hereinafter referred to and is registered in the name of The
Depository Trust Company (the "Depository") or a nominee of the Depository. This
Trust Preferred Security is exchangeable for Trust Preferred Securities
registered in the name of a person other than the Depository or its nominee only
in the limited circumstances described in the Trust Agreement and no transfer of
this Trust Preferred Security (other than a transfer of this Trust Preferred
Security as a whole by the Depository to a nominee of the Depository or by a
nominee of the Depository to the Depository or another nominee of the
Depository) may be registered except in limited circumstances.

Unless this Trust Preferred Security is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York) to
GBB Capital I or its agent for registration of transfer, exchange or payment,
and any Trust Preferred Security issued is registered in the name of Cede & Co.
or such other name as requested by an authorized representative of The
Depository Trust Company and any payment hereon is made to Cede & Co., ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS
WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest
herein.

CERTIFICATE NUMBER  P-1       NUMBER OF TRUST PREFERRED SECURITIES:  800,000


                                   CUSIP NO.
                                  361469 20 8

               CERTIFICATE EVIDENCING TRUST PREFERRED SECURITIES

                                       OF

                                 GBB CAPITAL I

                  9.75% CUMULATIVE TRUST PREFERRED SECURITIES,
                                     SERIES
             (LIQUIDATION AMOUNT $25 PER TRUST PREFERRED SECURITY)

GBB Capital I, a statutory business trust formed under the laws of the State of
Delaware (the "Trust"), hereby certifies that Cede & Co. (the "Holder") is the
registered owner of EIGHT HUNDRED THOUSAND (800,000) Trust Preferred Securities
of the Trust representing an undivided beneficial interest in the assets of the
Trust and designated the GBB Capital I 9.75% Cumulative Trust Preferred
Securities,  (liquidation amount $25 per Trust Preferred Security) (the "Trust
Preferred Securities"). The Trust Preferred Securities are transferable on the
books and records of the Trust, in person or by a duly authorized attorney, upon
surrender of this certificate duly endorsed and in proper form for transfer as
provided in Section 5.4 of the Trust Agreement (as defined below). The
designations, rights, privileges, restrictions, preferences and other terms and
provisions of the Trust Preferred Securities are set forth in, and this
certificate and the Trust Preferred Securities represented hereby are issued and
shall in all respects be subject to the terms and provisions of, the Amended and
Restated Trust Agreement of the Trust dated as of  March 31, 1997, 
<PAGE>
 
as the same may be amended from time to time (the "Trust Agreement") including
the designation of the terms of Trust Preferred Securities as set forth therein.
The Holder is entitled to the benefits of the Guarantee Agreement entered into
by Greater Bay Bancorp, a California corporation, and Wilmington Trust Company,
a Delaware banking corporation, as guarantee trustee, dated as of March 31,
1997, (the "Guarantee"), to the extent provided therein. The Trust will furnish
a copy of the Trust Agreement and the Guarantee to the Holder without charge
upon written request to the Trust at its principal place of business or
registered office.

Upon receipt of this certificate, the Holder is bound by the Trust Agreement and
is entitled to the benefits thereunder.

  In Witness Whereof, one of the Administrative Trustees of the Trust has
executed this certificate this 31st day of March, 1997.



  GBB Capital I


  By: /s/ Steven C. Smith
      ----------------------------------
      Steven C. Smith
      Administrative Trustee
<PAGE>
 
                                   ASSIGNMENT

  For Value Received, the undersigned assigns and transfers this Preferred
Security to:



        (Insert assignee's social security or tax identification number)



                   (Insert address and zip code of assignee)

and irrevocably appoints



agent to transfer this Preferred Security Certificate on the books of the Trust.
The agent may substitute another to act for him or her.

Date: ________________

Signature: ___________________________________________________________________

  (Sign exactly as your name appears on the other side of this Preferred
   Security Certificate)

The signature(s) should be guaranteed by an eligible guarantor institution
(banks, stockbrokers, savings and loan associations and credit unions with
membership in an approved signature guarantee medallion program), pursuant to
SEC Rule 17Ad-15.

<PAGE>
 
                                                                     EXHIBIT 4.8

                      THIS CERTIFICATE IS NOT TRANSFERABLE

CERTIFICATE NUMBER C-1                   NUMBER OF COMMON SECURITIES:  24,742



                    CERTIFICATE EVIDENCING COMMON SECURITIES

                                       OF

                                 GBB CAPITAL I

                            9.75% COMMON SECURITIES
                  (LIQUIDATION AMOUNT $25 PER COMMON SECURITY)

     GBB Capital I, a statutory business trust formed under the laws of the
State of Delaware (the "Trust"), hereby certifies that Greater Bay Bancorp (the
"Holder") is the registered owner of TWENTYFOURTHOUSAND SEVENHUNDREDFORTYTWO
(24,742) common securities of the Trust representing an undivided beneficial
interests in the assets of the Trust and designated the 9.75% Common Securities
(liquidation amount $25 per Common Security) (the "Common Securities"). In
accordance with Section 5.10 of the Trust Agreement (as defined below) the
Common Securities are not transferable and any attempted transfer hereof shall
be void. The designations, rights, privileges, restrictions, preferences and
other terms and provisions of the Common Securities are set forth in, and this
certificate and the Common Securities represented hereby are issued and shall in
all respects be subject to the terms and provisions of, the Amended and Restated
Trust Agreement of the Trust dated as of March 31, 1997, as the same may be
amended from time to time (the "Trust Agreement") including the designation of
the terms of the Common Securities as set forth therein. The Trust will furnish
a copy of the Trust Agreement to the Holder without charge upon written request
to the Trust at its principal place of business or registered office.

     Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

     In Witness Whereof, one of the Administrative Trustees of the Trust has
executed this certificate this 31st day of March, 1997.


                                GBB Capital I


                                By: /s/ Steven C. Smith
                                    ------------------------------
                                    Steven C. Smith
                                    Administrative Trustee

<PAGE>
 
 
                                                                     EXHIBIT 4.9

          __________________________________________________________


                              GUARANTEE AGREEMENT


                                    BETWEEN


                              GREATER BAY BANCORP
                                (AS GUARANTOR)


                                      AND


                           WILMINGTON TRUST COMPANY
                                 (AS TRUSTEE)



                                  DATED AS OF
                                        
                                MARCH 31, 1997



          __________________________________________________________
<PAGE>
 
                             CROSS-REFERENCE TABLE*

<TABLE>
<CAPTION>
         Section of Trust                                      Section of
Indenture Act of 1939, as amended                          Guarantee Agreement
- ---------------------------------                          -------------------
<S>                                                        <C>  
              310(a).                                              4.1(a)     
              310(b).                                            4.1(c), 2.8  
              310(c).                                           Inapplicable  
              311(a).                                              2.2(b)     
              311(b).                                              2.2(b)     
              311(c).                                           Inapplicable  
              312(a).                                              2.2(a)     
              312(b).                                              2.2(b)     
               313.                                                  2.3      
              314(a).                                                2.4      
              314(b).                                           Inapplicable  
              314(c).                                                2.5      
              314(d).                                           Inapplicable  
              314(e).                                           1.1, 2.5, 3.2 
              314(f).                                             2.1, 3.2    
              315(a).                                              3.1(d)     
              315(b).                                                2.7      
              315(c).                                                3.1      
              315(d).                                              3.1(d)     
              316(a).                                           1.1, 2.6, 5.4 
              316(b).                                                5.3      
              316(c).                                                9.2      
              317(a).                                           Inapplicable  
              317(b).                                           Inapplicable  
              318(a).                                              2.1(b)     
              318(b).                                                2.1      
              318(c).                                              2.1(a)      
</TABLE>

- ----------------
*  This Cross-Reference Table does not constitute part of the Guarantee
   Agreement and shall not affect the interpretation of any of its terms or
   provisions.
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                          Page
                                                                          ----
<S>                                                                       <C>
ARTICLE I.   DEFINITIONS                                                     1

          Section 1.1. Definitions                                           1
 

ARTICLE II.  TRUST INDENTURE ACT                                             3

          Section 2.1. Trust Indenture Act; Application                      3

          Section 2.2. List of Holders                                       4

          Section 2.3. Reports by the Guarantee Trustee                      4

          Section 2.4. Periodic Reports to Guarantee Trustee                 4

          Section 2.5. Evidence of Compliance with Conditions Precedent      4

          Section 2.6. Events of Default; Waiver                             4

          Section 2.7. Event of Default; Notice                              4

          Section 2.8. Conflicting Interests                                 5
 

ARTICLE III. POWERS, DUTIES AND RIGHTS OF THE GUARANTEE                      5
             TRUSTEE

          Section 3.1. Powers and Duties of the Guarantee Trustee            5

          Section 3.2. Certain Rights of Guarantee Trustee                   6

          Section 3.3. Indemnity                                             8

 
ARTICLE IV.  GUARANTEE TRUSTEE                                               8

          Section 4.1. Guarantee Trustee; Eligibility                        8

          Section 4.2. Appointment, Removal and Resignation of the 
                       Guarantee Trustee                                     8
</TABLE> 
<PAGE>
 
<TABLE> 
<S>                                                                       <C>
ARTICLE V.   GUARANTEE                                                       8

          Section 5.1. Guarantee                                             8

          Section 5.2. Waiver of Notice and Demand                           9

          Section 5.3. Obligations Not Affected                              9

          Section 5.4. Rights of Holders                                    10

          Section 5.5. Guarantee of Payment                                 10

          Section 5.6. Subrogation                                          10

          Section 5.7. Independent Obligations                              10
 

ARTICLE VI.  COVENANTS AND SUBORDINATION                                    11

          Section 6.1. Subordination                                        11

          Section 6.2. Pari Passu Guarantees                                11
 

ARTICLE VII.  CONSOLIDATION, MERGER, SALE OF ASSETS AND OTHER 
              TRANSACTIONS                                                  11

          Section 7.1. Guarantor May Consolidate, Etc., Only on 
                       Certain Terms                                        11

          Section 7.2. Successor Guarantor Substituted                      12
 

ARTICLE VIII. TERMINATION                                                   12

          Section 8.1. Termination                                          12
                                                                            
 
ARTICLE IX.   MISCELLANEOUS                                                 12

          Section 9.1. Successors and Assigns                               12

          Section 9.2. Amendments                                           12

          Section 9.3. Notices                                              12
</TABLE> 
<PAGE>
 
<TABLE> 
<S>                                                                       <C>
          Section 9.4. Benefit                                              13

          Section 9.5. Interpretation                                       13

          Section 9.6. Governing Law                                        14
</TABLE>


                              GUARANTEE AGREEMENT

     This GUARANTEE AGREEMENT, dated as of March 31, 1997, is executed and
delivered by GREATER BAY BANCORP, a California corporation (the "Guarantor")
having its principal office at 2860 West Bayshore Road, Palo Alto, California
94303, and WILMINGTON TRUST COMPANY a Delaware banking corporation, as trustee
(the "Guarantee Trustee"), for the benefit of the Holders from time to time of
the Preferred Securities (as defined herein) of GBB CAPITAL I, a Delaware
statutory business trust (the "Trust").

     WHEREAS, pursuant to an Amended and Restated Trust Agreement, dated as of
March 31, 1997 (the "Trust Agreement"), among the Guarantor, as Depositor,
Wilmington Trust Company as Property Trustee, Wilmington Trust Company, as
Delaware Trustee, and the Administrative Trustees named therein and the Holders
from time to time of undivided beneficial interests in the assets of the Trust,
the Trust issued $20,000,000 aggregate Liquidation Amount (as defined in the
Trust Agreement) of its 9.75% Cumulative Trust Preferred Securities, Liquidation
Amount $25 per Trust Preferred Security (the " Preferred Securities")
representing preferred undivided beneficial interests in the assets of the Trust
and having the terms set forth in the Trust Agreement;

     WHEREAS, the Preferred Securities will be issued by the Trust and the
proceeds thereof, together with the proceeds from the issuance of the Trust's
Common Securities (as defined below), will be used to purchase the Debentures
(as defined in the Trust Agreement) of the Guarantor which was deposited with
Wilmington Trust Company, as Property Trustee under the Trust Agreement, as
trust assets;

     WHEREAS, as an incentive for the Holders to purchase the Preferred
Securities, the Guarantor desires irrevocably and unconditionlly to agree, to
the extent set forth herein, to pay to the Holders of the Preferred Securities
the Guarantee Payments (as defined herein) and to make certain other payments on
the terms and conditions set forth herein.

     NOW, THEREFORE, in consideration of the purchase  by each Holder of
Preferred Securities, which purchase the Guarantor hereby agrees shall benefit
the Guarantor, the Guarantor executes and delivers this Guarantee Agreement and
pursuant to Section 5.1 hereof extends the Guarantee for the benefit of the
Holders from time to time of the Preferred Securities.

                            ARTICLE 1.  DEFINITIONS

     SECTION 1.1.  Definitions.

     As used in this Guarantee Agreement, the terms set forth below shall,
unless the context otherwise requires, have the following meanings.  Capitalized
or otherwise defined terms used but not otherwise defined herein shall have the
meanings assigned to such terms in the Trust Agreement and the Indenture (as
defined herein), each as in effect on the date hereof.

     "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person; provided, however, that an Affiliate of the
Guarantor shall not be deemed to be an Affiliate of the Trust.  For the purposes
of this definition, "control" when used with respect to any specified Person
means the power to direct the management and policies of such Person, directly
or indirectly, whether through the ownership of voting 
<PAGE>
 
securities, by contract or otherwise; and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.

     "Board of Directors" means either the board of directors of the Guarantor
or any committee of that board duly authorized to act hereunder.

     "Common Securities" means the securities representing common undivided
beneficial interests in the assets of the Trust.

     "Event of Default" means a default by the Guarantor on any of its payment
or other obligations under this Guarantee Agreement; provided, however, that,
except with respect to a default in payment of any Guarantee Payments, the
Guarantor shall have received notice of default and shall not have cured such
default within 60 days after receipt of such notice.

     "Guarantee"  has the meaning set forth in Section 5.1.

     "Guarantee Payments" means the following payments or distributions, without
duplication, with respect to the Preferred Securities, to the extent not paid or
made by or on behalf of the Trust:  (i) any accrued and unpaid Distributions (as
defined in the Trust Agreement) required to be paid on the Preferred Securities,
to the extent the Trust shall have funds on hand available therefor at such
time, (ii) the applicable Redemption Price (as defined in the Trust Agreement),
to the extent the Trust shall have funds on hand available therefor at such
time, and (iii) upon a voluntary or involuntary termination, winding up or
liquidation of the Trust, unless Debentures are distributed to the Holders, the
lesser of (a) the aggregate of the Liquidation Distribution (as defined in the
Trust Agreement) and (b) the amount of assets of the Trust remaining available
for distribution to Holders of Preferred Securities after satisfaction of
liabilities to creditors of the Trust as required by applicable law.

     "Guarantee Trustee" means Wilmington Trust Company, until a Successor
Guarantee Trustee has been appointed and has accepted such appointment pursuant
to the terms of this Guarantee Agreement, and thereafter means each such
Successor Guarantee Trustee.

     "Holder" means any holder, as registered on the books and records of the
Trust, of any Preferred Securities; provided, however, that in determining
whether the holders of the requisite percentage of Preferred Securities have
given any request, notice, consent or waiver hereunder, "Holder" shall not
include the Guarantor, the Guarantee Trustee, or any Affiliate of the Guarantor
or the Guarantee Trustee.

     "Indenture" means the Junior Subordinated Indenture dated as of March 31,
1997, as supplemented and amended between the Guarantor and Wilmington Trust
Company, as trustee.

     "List of Holders" has the meaning specified in Section 2.2(a).

     "Majority in Liquidation Amount of the Preferred Securities" means, except
as provided by the Trust Indenture Act, a vote by the Holder(s), voting
separately as a class, of more than 50% of the Liquidation Amount of all then
outstanding Preferred Securities issued by the Trust.

     "Officers' Certificate" means, with respect to any Person, a certificate
signed by the Chairman or a Vice Chairman of the Board of Directors of such
Person or the President or a Vice President of such Person, and by the
Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary of
such Person, and delivered to the Guarantee Trustee. Any Officers' Certificate
delivered with respect to compliance with a condition or covenant provided for
in this Guarantee Agreement shall include:

     (a) a statement that each officer signing the Officers' Certificate has
read the covenant or condition and the definitions relating thereto;
<PAGE>
 
     (b) a brief statement of the nature and scope of the examination or
investigation undertaken by each officer in rendering the Officers' Certificate;

     (c) a statement that each officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such officer
to express an informed opinion as to whether or not such covenant or condition
has been complied with; and

     (d) a statement as to whether, in the opinion of each officer, such
condition or covenant has been complied with.

     "Other Guarantees" means any guarantees similar to the Guarantee issued,
from time to time, by the Guarantor on behalf of holders of one or more series
of Preferred Securities issued by one or more GBB Trusts (as defined in the
Indenture) other than the Trust.

     "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever nature.

     "Responsible Officer" means, with respect to the Guarantee Trustee, any
officer of the Corporate Trust Department of the Guarantee Trustee and also
means, with respect to a particular corporate trust matter, any other officer to
whom such matter is referred because of that officer's knowledge of and
familiarity with the particular subject.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Successor Guarantee Trustee" means a successor Guarantee Trustee
possessing the qualifications to act as Guarantee Trustee under Section 4.1.

     "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended.

                       ARTICLE II.  TRUST INDENTURE ACT

     SECTION 2.1.  Trust Indenture Act; Application.

     (a) This Guarantee Agreement is subject to the provisions of the Trust
Indenture Act that are required to be part of this Guarantee Agreement and
shall, to the extent applicable, be governed by such provisions.

     (b) If and to the extent that any provision of this Guarantee Agreement
limits, qualifies or conflicts with the duties imposed by Sections 310 to 317,
inclusive, of the Trust Indenture Act, such imposed duties shall control.

     SECTION 2.2.  List of Holders.

     (a) The Guarantor shall furnish or cause to be furnished to the Guarantee
Trustee (a) semiannually, on or before January 15 and July 15 of each year, a
list, in such form as the Guarantee Trustee may reasonably require, of the names
and addresses of the Holders ("List of Holders") as of a date not more than 15
days prior to the delivery thereof, and (b) at such other times as the Guarantee
Trustee may request in writing, within 30 days after the receipt by the
Guarantor of any such request, a List of Holders as of a date not more than 15
days prior to the time such list is furnished, in each case to the extent such
information is in the possession or control of the Guarantor and is not
identical to a previously supplied list of Holders or 

                                      -3-
<PAGE>
 
has not otherwise been received by the Guarantee Trustee in its capacity as
such. The Guarantee Trustee may destroy any List of Holders previously given to
it on receipt of a new List of Holders.

     (b) The Guarantee Trustee shall comply with its obligations under Section
311(a), Section 311(b) and Section 312(b) of the Trust Indenture Act.

     SECTION 2.3.  Reports by the Guarantee Trustee.

     Not later than July 15 of each year, commencing July 15, 1997, the
Guarantee Trustee shall provide to the Holders such reports as are required by
Section 313 of the Trust Indenture Act, if any, in the form and in the manner
provided by Section 313 of the Trust Indenture Act. The Guarantee Trustee shall
also comply with the requirements of Section 313(d) of the Trust Indenture Act.

     SECTION 2.4.  Periodic Reports to the Guarantee Trustee.

     The Guarantor shall provide to the Guarantee Trustee, the Securities and
Exchange Commission and the Holders such documents, reports and information, if
any, as required by Section 314 of the Trust Indenture Act and the compliance
certificate required by Section 314 of the Trust Indenture Act, in the form, in
the manner and at the times required by Section 314 of the Trust Indenture Act.

     SECTION 2.5.  Evidence of Compliance with Conditions Precedent.

     The Guarantor shall provide to the Guarantee Trustee, on an annual basis,
such evidence of compliance with such conditions precedent, if any, provided for
in this Guarantee Agreement that relate to any of the matters set forth in
Section 314(c) of the Trust Indenture Act. Any certificate or opinion required
to be given by an officer pursuant to Section 314(c)(1) may be given in the form
of an Officers' Certificate.

     SECTION 2.6.  Events of Default; Waiver.

     The Holders of a Majority in Liquidation Amount of the Preferred Securities
may, by vote, on behalf of the Holders, waive any past Event of Default and its
consequences. Upon such waiver, any such Event of Default shall cease to exist,
and any Event of Default arising therefrom shall be deemed to have been cured,
for every purpose of this Guarantee Agreement, but no such waiver shall extend
to any subsequent or other default or Event of Default or impair any right
consequent therefrom.

     SECTION 2.7.  Event of Default; Notice.

     (a) The Guarantee Trustee shall, within 90 days after the occurrence of an
Event of Default, transmit by mail, first class postage prepaid, to the Holders,
notices of all Events of Default known to the Guarantee Trustee, unless such
defaults have been cured before the giving of such notice, provided, that,
except in the case of a default in the payment of a Guarantee Payment, the
Guarantee Trustee shall be protected in withholding such notice if and so long
as the Board of Directors, the executive committee or a trust committee of
directors and/or Responsible Officers of the Guarantee Trustee in good faith
determines that the withholding of such notice is in the interests of the
Holders.

     (b) The Guarantee Trustee shall not be deemed to have knowledge of any
Event of Default unless the Guarantee Trustee shall have received written
notice, or a Responsible Officer charged with the administration of this
Guarantee Agreement shall have obtained written notice, of such Event of
Default.

     SECTION 2.8.  Conflicting Interests.

                                      -4-
<PAGE>
 
     The Trust Agreement shall be deemed to be specifically described in this
Guarantee Agreement for the purposes of clause (i) of the first proviso
contained in Section 310(b) of the Trust Indenture Act.

        ARTICLE III.  POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

     SECTION 3.1.  Powers and Duties of the Guarantee Trustee.

     (a)  This Guarantee shall be held by the Guarantee Trustee for the benefit
of the Holders, and the Guarantee Trustee shall not transfer this Guarantee to
any Person except to a Holder exercising his or her rights pursuant to Section
5.4(iv) or to a Successor Guarantee Trustee on acceptance by such Successor
Guarantee Trustee of its appointment to act as Successor Guarantee Trustee. The
right, title and interest of the Guarantee Trustee shall automatically vest in
any Successor Guarantee Trustee, upon acceptance by such Successor Guarantee
Trustee of its appointment hereunder, and such vesting and cessation of title
shall be effective whether or not conveyancing documents have been executed and
delivered pursuant to the appointment of such Successor Guarantee Trustee.

     (b)  If an Event of Default has occurred and is continuing, the Guarantee
Trustee shall enforce this Guarantee for the benefit of the Holders.

     (c)  The Guarantee Trustee, before the occurrence of any Event of Default
and after the curing of all Events of Default that may have occurred, shall
undertake to perform only such duties as are specifically set forth in this
Guarantee Agreement, and no implied covenants shall be read into this Guarantee
Agreement against the Guarantee Trustee. In case an Event of Default has
occurred (that has not been cured or waived pursuant to Section 2.6), the
Guarantee Trustee shall exercise such of the rights and powers vested in it by
this Guarantee Agreement, and use the same degree of care and skill in its
exercise thereof, as a prudent person would exercise or use under the
circumstances in the conduct of his or her own affairs.

     (d)  No provision of this Guarantee Agreement shall be construed to relieve
the Guarantee Trustee from liability for its own negligent action, its own
negligent failure to act or its own willful misconduct, except that:

          (i) prior to the occurrence of any Event of Default and after the
     curing or waiving of all such Events of Default that may have occurred:

              (A) the duties and obligations of the Guarantee Trustee shall be
          determined solely by the express provisions of this Guarantee
          Agreement, and the Guarantee Trustee shall not be liable except for
          the performance of such duties and obligations as are specifically set
          forth in this Guarantee Agreement; and

              (B) in the absence of bad faith on the part of the Guarantee
          Trustee, the Guarantee Trustee may conclusively rely, as to the truth
          of the statements and the correctness of the opinions expressed
          therein, upon any certificates or opinions furnished to the Guarantee
          Trustee and conforming to the requirements of this Guarantee
          Agreement; but in the case of any such certificates or opinions that
          by any provision hereof or of the Trust Indenture Act are specifically
          required to be furnished to the Guarantee Trustee, the Guarantee
          Trustee shall be under a duty to examine the same to determine whether
          or not they conform to the requirements of this Guarantee Agreement;

          (ii) the Guarantee Trustee shall not be liable for any error of
     judgment made in good faith by a Responsible Officer of the Guarantee
     Trustee, unless it shall be proved that the Guarantee Trustee was negligent
     in ascertaining the pertinent facts upon which such judgment was made;

                                      -5-
<PAGE>
 
          (iii) the Guarantee Trustee shall not be liable with respect to any
     action taken or omitted to be taken by it in good faith in accordance with
     the direction of the Holders of not less than a Majority in Liquidation
     Amount of the Preferred Securities relating to the time, method and place
     of conducting any proceeding for any remedy available to the Guarantee
     Trustee, or exercising any trust or power conferred upon the Guarantee
     Trustee under this Guarantee Agreement; and

          (iv) no provision of this Guarantee Agreement shall require the
     Guarantee Trustee to expend or risk its own funds or otherwise incur
     personal financial liability in the performance of any of its duties or in
     the exercise of any of its rights or powers, if the Guarantee Trustee shall
     have reasonable grounds for believing that the repayment of such funds or
     liability is not reasonably assured to it under the terms of this Guarantee
     Agreement or adequate indemnity against such risk or liability is not
     reasonably assured to it.

     SECTION 3.2.  Certain Rights of Guarantee Trustee.

     (a)  Subject to the provisions of Section 3.1:

          (i) The Guarantee Trustee may rely and shall be fully protected in
     acting or refraining from acting upon any resolution, certificate,
     statement, instrument, opinion, report, notice, request, direction,
     consent, order, bond, debenture, note, other evidence of indebtedness or
     other paper or document reasonably believed by it to be genuine and to have
     been signed, sent or presented by the proper party or parties.

          (ii) Any direction or act of the Guarantor contemplated by this
     Guarantee Agreement shall be sufficiently evidenced by an Officers'
     Certificate unless otherwise prescribed herein.

          (iii) Whenever, in the administration of this Guarantee Agreement, the
     Guarantee Trustee shall deem it desirable that a matter be proved or
     established before taking, suffering or omitting to take any action
     hereunder, the Guarantee Trustee (unless other evidence is herein
     specifically prescribed) may, in the absence of bad faith on its part,
     request and rely upon an Officers' Certificate which, upon receipt of such
     request from the Guarantee Trustee, shall be promptly delivered by the
     Guarantor.

          (iv) The Guarantee Trustee may consult with legal counsel, and the
     written advice or opinion of such legal counsel with respect to legal
     matters shall be full and complete authorization and protection in respect
     of any action taken, suffered or omitted to be taken by it hereunder in
     good faith and in accordance with such advice or opinion. Such legal
     counsel may be legal counsel to the Guarantor or any of its Affiliates and
     may be one of its employees. The Guarantee Trustee shall have the right at
     any time to seek instructions concerning the administration of this
     Guarantee Agreement from any court of competent jurisdiction.

          (v) The Guarantee Trustee shall be under no obligation to exercise any
     of the rights or powers vested in it by this Guarantee Agreement at the
     request or direction of any Holder, unless such Holder shall have provided
     to the Guarantee Trustee such adequate security and indemnity as would
     satisfy a reasonable person in the position of the Guarantee Trustee,
     against the costs, expenses (including attorneys' fees and expenses) and
     liabilities that might be incurred by it in complying with such request or
     direction, including such reasonable advances as may be requested by the
     Guarantee Trustee; provided that, nothing contained in this Section
     3.2(a)(v) shall be taken to relieve the Guarantee Trustee, upon the
     occurrence of an Event of Default, of its obligation to exercise the rights
     and powers vested in it by this Guarantee Agreement.

                                      -6-
<PAGE>
 
          (vi) The Guarantee Trustee shall not be bound to make any
     investigation into the facts or matters stated in any resolution,
     certificate, statement, instrument, opinion, report, notice, request,
     direction, consent, order, bond, debenture, note, other evidence of
     indebtedness or other paper or document, but the Guarantee Trustee, in its
     discretion, may make such further inquiry or investigation into such facts
     or matters as it may see fit.

          (vii) The Guarantee Trustee may execute any of the trusts or powers
     hereunder or perform any duties hereunder either directly or by or through
     its agents or attorneys, and the Guarantee Trustee shall not be responsible
     for any misconduct or negligence on the part of any such agent or attorney
     appointed with due care by it hereunder.

          (viii) Whenever in the administration of this Guarantee Agreement the
     Guarantee Trustee shall deem it desirable to receive instructions with
     respect to enforcing any remedy or right or taking any other action
     hereunder, the Guarantee Trustee (A) may request instructions from the
     Holders, (B) may refrain from enforcing such remedy or right or taking such
     other action until such instructions are received, and (C) shall be
     protected in acting in accordance with such instructions.

     (b)  No provision of this Guarantee Agreement shall be deemed to impose any
duty or obligation on the Guarantee Trustee to perform any act or acts or
exercise any right, power, duty or obligation conferred or imposed on it in any
jurisdiction in which it shall be illegal, or in which the Guarantee Trustee
shall be unqualified or incompetent in accordance with applicable law, to
perform any such act or acts or to exercise any such right, power, duty or
obligation. No permissive power or authority available to the Guarantee Trustee
shall be construed to be a duty to act in accordance with such power and
authority.

     SECTION 3.3.  Indemnity.

     The Guarantor agrees to indemnify the Guarantee Trustee for, and to hold it
harmless against, any loss, liability or expense incurred without negligence or
bad faith on the part of the Guarantee Trustee, arising out of or in connection
with the acceptance or administration of this Guarantee Agreement, including the
costs and expenses of defending itself against any claim or liability in
connection with the exercise or performance of any of its powers or duties
hereunder.

                         ARTICLE IV.  GUARANTEE TRUSTEE

     SECTION 4.1.  Guarantee Trustee:  Eligibility.

     (a)  There shall at all times be a Guarantee Trustee which shall:

          (i) not be an Affiliate of the Guarantor; and

          (ii) be a Person that is eligible pursuant to the Trust Indenture Act
     to act as such and has a combined capital and surplus of at least
     $50,000,000, and shall be a corporation meeting the requirements of Section
     310(a) of the Trust Indenture Act. If such corporation publishes reports of
     condition at least annually, pursuant to law or to the requirements of the
     supervising or examining authority, then, for the purposes of this Section
     4.1(a)(ii) and to the extent permitted by the Trust Indenture Act, the
     combined capital and surplus of such corporation shall be deemed to be its
     combined capital and surplus as set forth in its most recent report of
     condition so published.

                                      -7-
<PAGE>
 
     (b) If at any time the Guarantee Trustee shall cease to be eligible to so
act under Section 4.1(a), the Guarantee Trustee shall immediately resign in the
manner and with the effect set out in Section 4.2(c).

     (c) If the Guarantee Trustee has or shall acquire any "conflicting
interest" within the meaning of Section 310(b) of the Trust Indenture Act, the
Guarantee Trustee and Guarantor shall in all respects comply with the provisions
of Section 310(b) of the Trust Indenture Act.

     SECTION 4.2.  Appointment, Removal and Resignation of the Guarantee
                   Trustee.

     (a) Subject to Section 4.2(b), the Guarantee Trustee may be appointed or
removed without cause at any time by the Guarantor.

     (b) The Guarantee Trustee shall not be removed until a Successor Guarantee
Trustee has been appointed and has accepted such appointment by written
instrument executed by such Successor Guarantee Trustee and delivered to the
Guarantor.

     (c) The Guarantee Trustee appointed hereunder shall hold office until a
Successor Guarantee Trustee shall have been appointed or until its removal or
resignation.  The Guarantee Trustee may resign from office (without need for
prior or subsequent accounting) by an instrument in writing executed by the
Guarantee Trustee and delivered to the Guarantor, which resignation shall not
take effect until a Successor Guarantee Trustee has been appointed and has
accepted such appointment by instrument in writing executed by such Successor
Guarantee Trustee and delivered to the Guarantor and the resigning Guarantee
Trustee.

     (d) If no Successor Guarantee Trustee shall have been appointed and
accepted appointment as provided in this Section 4.2 within 60 days after
delivery to the Guarantor of an instrument of resignation, the resigning
Guarantee Trustee may petition, at the expense of the Guarantor, any court of
competent jurisdiction for appointment of a Successor Guarantee Trustee.  Such
court may thereupon, after prescribing such notice, if any, as it may deem
proper, appoint a Successor Guarantee Trustee.

                             ARTICLE V.  GUARANTEE

     SECTION 5.1.  Guarantee.

     The Guarantor irrevocably and unconditionally agrees to pay in full on a
subordinated basis to the Holders the Guarantee Payments (without duplication of
amounts theretofore paid by or on behalf of the Trust), as and when due,
regardless of any defense, right of set-off or counterclaim which the Trust may
have or assert other than the defense of payment (the "Guarantee").  The
Guarantee is a continuing guarantee, and the Guarantor fully, knowingly and
unconditionally waives any right the Guarantor may have to revoke the Guarantee
as to any future transactions under Section 2815 of the California Civil Code or
otherwise.  The Guarantor's obligation to make a Guarantee Payment may be
satisfied by direct payment of the required amounts by the Guarantor to the
Holders or by causing the Trust to pay such amounts to the Holders.

     SECTION 5.2.  Waiver of Notice and Demand.

     The Guarantor hereby waives notice of acceptance of the Guarantee and of
any liability to which it applies or may apply, presentment, demand for payment,
any right to require a proceeding first against the Guarantee Trustee, Trust or
any other Person before proceeding against the Guarantor, protest, notice of
nonpayment, notice of dishonor, notice of redemption and all other notices and
demands.

     SECTION 5.3.  Obligations Not Affected.

                                      -8-
<PAGE>
 
     The obligations, covenants, agreements and duties of the Guarantor under
this Guarantee Agreement shall in no way be affected or impaired by reason of
the happening from time to time of any of the following:

     (a) the release or waiver, by operation of law or otherwise, of the
performance or observance by the Trust of any express or implied agreement,
covenant, term or condition relating to the Preferred Securities to be performed
or observed by the Trust;

     (b) the extension of time for the payment by the Trust of all or any
portion of the Distributions (other than an extension of time for payment of
Distributions that results from the extension of any interest payment period on
the Debentures as provided in the Indenture), Redemption Price, Liquidation
Distribution or any other sums payable under the terms of the Preferred
Securities or the extension of time for the performance of any other obligation
under, arising out of, or in connection with, the Preferred Securities;

     (c) any failure, omission, delay or lack of diligence on the part of the
Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Preferred Securities, or
any action on the part of the Trust granting indulgence or extension of any
kind;

     (d) the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Trust or any of the assets of the
Trust;

     (e) any invalidity of, or defect or deficiency in, the Preferred
Securities;

     (f) the settlement or compromise of any obligation guaranteed hereby or
hereby incurred; or

     (g) any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor, it being the intent of
this Section 5.3 that the obligations of the Guarantor hereunder shall be
absolute and unconditional under any and all circumstances.

There shall be no obligation of the Holders to give notice to, or obtain the
consent of, the Guarantor with respect to the happening of any of the foregoing.

     SECTION 5.4.  Rights of Holders.

     The Guarantor expressly acknowledges that:  (i) this Guarantee will be
deposited with the Guarantee Trustee to be held for the benefit of the Holders;
(ii) the Guarantee Trustee has the right to enforce this Guarantee on behalf of
the Holders; (iii) the Holders of a Majority in Liquidation Amount of the
Preferred Securities have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Guarantee Trustee in
respect of this Guarantee Agreement or exercising any trust or power conferred
upon the Guarantee Trustee under this Guarantee Agreement; and (iv) any Holder
may institute a legal proceeding directly against the Guarantor to enforce its
rights under this Guarantee Agreement, without first instituting a legal
proceeding against the Guarantee Trustee, the Trust or any other Person.

     SECTION 5.5.  Guarantee of Payment.

     This Guarantee creates a guarantee of payment and not of collection.  This
Guarantee will not be discharged except by payment of the Guarantee Payments in
full (without duplication of amounts theretofore paid by the Trust) or upon
distribution of Debentures to Holders as provided in the Trust Agreement.

                                      -9-
<PAGE>
 
     SECTION 5.6.  Subrogation.

     The Guarantor shall be subrogated to all (if any) rights of the Holders
against the Trust in respect of any amounts paid to the Holders by the Guarantor
under this Guarantee Agreement and shall have the right to waive payment by the
Trust pursuant to Section 5.1; provided, however, that the Guarantor shall not
(except to the extent required by mandatory provisions of law) be entitled to
enforce or exercise any rights which it may acquire by way of subrogation or any
indemnity, reimbursement or other agreement, in all cases as a result of payment
under this Guarantee, if, at the time of any such payment, any amounts are due
and unpaid under this Guarantee.  If any amount shall be paid to the Guarantor
in violation of the preceding sentence, the Guarantor agrees to hold such amount
in trust for the Holders and to pay over such amount to the Holders.

     SECTION 5.7.  Independent Obligations.

     The Guarantor acknowledges that its obligations hereunder are independent
of the obligations of the Trust with respect to the Preferred Securities and
that the Guarantor shall be liable as principal and as debtor hereunder to make
Guarantee Payments pursuant to the terms of this Guarantee Agreement
notwithstanding the occurrence of any event referred to in subsections (a)
through (g), inclusive, of Section 5.3 hereof.

                    ARTICLE VI.  COVENANTS AND SUBORDINATION

     SECTION 6.1.  Subordination.

     The obligations of the Guarantor under this Guarantee will constitute
unsecured obligations of the Guarantor and will rank subordinate and junior in
right of payment to all Senior and Subordinated Debt (as defined in the
Indenture) in the same manner as Debentures (as defined in the Trust Agreement).

     SECTION 6.2.  Pari Passu Guarantees.

     The obligations of the Guarantor under this Guarantee shall rank pari passu
with the obligations of the Guarantor under all Other Guarantees.


       ARTICLE VII.  CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

     SECTION 7.1.  Guarantor May Consolidate, Etc., Only on Certain Terms.

     The Guarantor shall not consolidate with or merge into any other Person or
convey, transfer or lease its properties and assets substantially as an entirety
to any Person, and no Person shall consolidate with or merge into the Guarantor
or convey, transfer or lease its properties and assets substantially as an
entirety to the Guarantor, unless:

     (1) in case the Guarantor shall consolidate with or merge into another
Person or convey, transfer or lease its properties and assets substantially as
an entirety to any Person, the Person formed by such consolidation or into which
the Guarantor is merged or the Person which acquires by conveyance or transfer,
or which leases, the properties and assets of the Guarantor substantially as an
entirety shall be a corporation, partnership or trust organized and existing
under the laws of the United States of America or any State or the District of
Columbia, and shall expressly assume the Guarantor's obligations under this
Guarantee;

     (2) immediately after giving effect thereto, no Event of Default, and no
event which, after notice or lapse of time, or both, would become an Event of
Default, shall have happened and be continuing;

                                     -10-
<PAGE>
 
     (3) such consolidation, merger, conveyance, transfer or lease is permitted
under the Trust Agreement and the Indenture and does not give rise to any breach
or violation of the Trust Agreement or the Indenture; and

     (4) the Guarantor has delivered to the Guarantee Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that such consolidation,
merger, conveyance, transfer or lease and assumption of the Guarantor's
obligations under this Guarantee Agreement comply with this Article and that all
conditions precedent herein provided for relating to such transaction have been
complied with; and the Guarantee Trustee, subject to Section 3.1 hereof, may
rely upon such Officers' Certificate and Opinion of Counsel as conclusive
evidence that such transaction complies with this Section 7.1.

     SECTION 7.2.  Successor Guarantor Substituted.

     Upon any consolidation or merger by the Guarantor with or into any other
Person, or any conveyance, transfer or lease by the Guarantor of its properties
and assets substantially as an entirety to any Person in accordance with Section
7.1, the successor Person formed by such consolidation or into which the
Guarantor is merged or to which such conveyance, transfer or lease is made shall
succeed to, and be substituted for, and may exercise every right and power of,
the Guarantor under this Guarantee Agreement with the same effect as if such
successor Person had been named as the Guarantor herein; and in the event of any
such conveyance, transfer or lease the Guarantor shall be discharged from all
obligations and covenants under this Guarantee Agreement.

                           ARTICLE VIII.  TERMINATION

     SECTION 8.1.  Termination.

     This Guarantee Agreement shall terminate and be of no further force and
effect upon the earliest of (i) full payment of the applicable Redemption Price
of all Preferred Securities, (ii) the distribution of Debentures to the Holders
in exchange for all of the Preferred Securities or (iii) full payment of the
amounts payable in accordance with the Trust Agreement upon liquidation of the
Trust. Notwithstanding the foregoing clauses (i) through (iii), this Guarantee
Agreement will continue to be effective or will be reinstated if it has been
terminated pursuant to one of such clauses (i) through (iii), as the case may
be, if at any time any Holder must restore payment of any sums paid with respect
to Preferred Securities or this Guarantee Agreement.

                          ARTICLE IX.  MISCELLANEOUS

     SECTION 9.1.  Successors and Assigns.

     All guarantees and agreements contained in this Guarantee Agreement shall
bind the successors, assigns, receivers, trustees and representatives of the
Guarantor and shall inure to the benefit of the Holders of the Preferred
Securities then outstanding.  Except in connection with a consolidation, merger
or sale involving the Guarantor that is permitted under Article VII hereof and
Article VIII of the Indenture, the Guarantor shall not assign its obligations
hereunder.

     SECTION 9.2.  Amendments.

     Except with respect to any changes which do not adversely affect the rights
of the Holders in any material respect (in which case no vote will be required),
this Guarantee Agreement may not be amended without the prior approval of the
Holders of not less than a Majority in Liquidation Amount of the Preferred

                                     -11-
<PAGE>
 
Securities.  The provisions of Article VI of the Trust Agreement concerning
meetings of the Holders shall apply to the giving of such approval.

     SECTION 9.3.  Notices.

     Any notice, request or other communication required or permitted to be
given hereunder shall be in writing, duly signed by the party giving such
notice, and delivered, telecopied or mailed by first class mail as follows:

     (a)  if given to the Guarantor, to the address set forth below or such
other address, facsimile number or to the attention of such other Person as the
Guarantor may give notice to the Holders:

          Greater Bay Bancorp
          2860 West Bayshore Road
          Palo Alto, California 94303

          Facsimile No.:  (415) 323-7421
          Attention: David L. Kalkbrenner

     (b)  if given to the Trust, in care of the Guarantee Trustee, at the
Trust's (and the Guarantee Trustee's) address set forth below or such other
address as the Guarantee Trustee on behalf of the Trust may give notice to the
Holders:

          GBB Capital I
          c/o Greater Bay Bancorp
          2860 West Bayshore Road
          Palo Alto, California 94303

          Facsimile No.:  (415) 323-7421
          Attention: David L. Kalkbrenner

          with a copy to:
 
          Wilmington Trust Company
          1100 North Market
          Wilmington, Delaware  19890

          Facsimile No.: (302) 651-1000
          Attention:  Corporate Trust Administration

     (c)  if given to any Holder, at the address set forth on the books and
records of the Trust.

     All notices hereunder shall be deemed to have been given when received in
person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid, except that if a notice or other document is refused delivery
or cannot be delivered because of a changed address of which no notice was
given, such notice or other document shall be deemed to have been delivered on
the date of such refusal or inability to deliver.

     SECTION 9.4.  Benefit.

                                     -12-
<PAGE>
 
     This Guarantee is solely for the benefit of the Holders and is not
separately transferable from the Preferred Securities.

     SECTION 9.5.  Interpretation.

     In this Guarantee Agreement, unless the context otherwise requires:

     (a) capitalized terms used in this Guarantee Agreement but not defined in
the preamble hereto have the respective meanings assigned to them in Section
1.1;

     (b) a term defined anywhere in this Guarantee Agreement has the same
meaning throughout;

     (c) all references to "the Guarantee Agreement" or "this Guarantee
Agreement" are to this Guarantee Agreement as modified, supplemented or amended
from time to time;

     (d) all references in this Guarantee Agreement to Articles and Sections are
to Articles and Sections of this Guarantee Agreement unless otherwise specified;

     (e) a term defined in the Trust Indenture Act has the same meaning when
used in this Guarantee Agreement unless otherwise defined in this Guarantee
Agreement or unless the context otherwise requires;

     (f) a reference to the singular includes the plural and vice versa; and

     (g) the masculine, feminine or neuter genders used herein shall include the
masculine, feminine and neuter genders.

     SECTION 9.6.  Governing Law.

     THIS GUARANTEE AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA WITHOUT REGARD TO THE
CONFLICT OF LAW PRINCIPLES THEREOF.

                                     -13-
<PAGE>
 
     This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

     THIS GUARANTEE AGREEMENT is executed as of the day and year first above
written.

                                    GREATER BAY BANCORP

                                    By: /s/ Steven C. Smith
                                        ----------------------------
                                    Name:   Steven C. Smith
                                    Title:  E.V.P. C.O.O. and C.F.O.


                                    WILMINGTON TRUST COMPANY
                                    as Guarantee Trustee

                                    By: /s/ James Lawler
                                        ----------------------------
                                    Name:   James Lawler
                                    Title:  Vice President


<PAGE>
 
                                                                    EXHIBIT 4.10
 
                    AGREEMENT AS TO EXPENSES AND LIABILITIES

     AGREEMENT AS TO EXPENSES AND LIABILITIES (this "Agreement"), dated as of
March 31, 1997, between Greater Bay Bancorp, a California corporation (the
"Company"), and GBB Capital I, a Delaware business trust (the "Trust").

     WHEREAS, the Trust intends to issue its Common Securities (the "Common
Securities") to and receive Junior Subordinated Deferrable Interest Debentures
(the "Debentures") from the Company and to issue and sell 9.75% Cumulative Trust
Preferred Securities (the "Trust Preferred Securities") with such powers,
preferences and special rights and restrictions as are set forth in the Amended
and Restated Trust Agreement of the Trust dated as of March 31, 1997 as the same
may be amended from time to time (the "Trust Agreement");

     WHEREAS, the Company will directly or indirectly own all of the Common
Securities of the Trust and will issue the Debentures;

     NOW, THEREFORE, in consideration of the purchase by each holder of the
Trust Preferred Securities, which purchase the Company hereby agrees shall
benefit the Company and which purchase the Company acknowledges will be made in
reliance upon the execution and delivery of this Agreement, the Company and the
Trust hereby agree as follows:


                                   ARTICLE I

     Section 1.1. Guarantee by the Company.

     Subject to the terms and conditions hereof, the Company hereby irrevocably
and unconditionally guarantees to each person or entity to whom the Trust is now
or hereafter becomes indebted or liable (the "Beneficiaries") the full payment,
when and as due, of any and all Obligations (as hereinafter defined) to such
Beneficiaries. As used herein, "Obligations" means any costs, expenses or
liabilities of the Trust, other than obligations of the Trust to pay to holders
of any Trust Preferred Securities or other similar interests in the Trust the
amounts due such holders pursuant to the terms of the Trust Preferred Securities
or such other similar interests, as the case may be. This Agreement is intended
to be for the benefit of, and to be enforceable by, all such Beneficiaries,
whether or not such Beneficiaries have received notice hereof.

     Section 1.2. Term of Agreement.

     This Agreement shall terminate and be of no further force and effect upon
the later of (a) the date on which full payment has been made of all amounts
payable to all holders of all the Trust Preferred Securities (whether upon
redemption, liquidation, exchange or otherwise) and (b) the date on which there
are no Beneficiaries remaining; provided, however, that this Agreement shall
continue to be effective or shall be reinstated, as the case may be, if at any
time any holder of Trust Preferred Securities or any Beneficiary must restore
payment of any sums paid under the Trust Preferred Securities, under any
Obligation, under the Guarantee Agreement dated the date hereof by the 
<PAGE>
 
Company and Wilmington Trust Company, a Delaware banking corporation, as
guarantee trustee or under this Agreement for any reason whatsoever. This
Agreement is continuing, irrevocable, unconditional and absolute.

     Section 1.3. Waiver of Notice.

     The Company hereby waives notice of acceptance of this Agreement and of any
Obligation to which it applies or may apply, and the Company hereby waives
presentment, demand for payment, protest, notice of nonpayment, notice of
dishonor, notice of redemption and all other notices and demands.

     Section 1.4. No Impairment.

     The obligations, covenants, agreements and duties of the Company under this
Agreement shall in no way be affected or impaired by reason of the happening
from time to time of any of the following:

     (a) the extension of time for the payment by the Trust of all or any
portion of the Obligations or for the performance of any other obligation under,
arising out of, or in connection with, the Obligations;

     (b) any failure, omission, delay or lack of diligence on the part of the
Beneficiaries to enforce, assert or exercise any right, privilege, power or
remedy conferred on the Beneficiaries with respect to the Obligations or any
action on the part of the Trust granting indulgence or extension of any kind; or

     (c) the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Trust or any of the assets of the
Trust.

There shall be no obligation of the Beneficiaries to give notice to, or obtain
the consent of, the Company with respect to the happening of any of the
foregoing.

     Section 1.5. Enforcement.

     A Beneficiary may enforce this Agreement directly against the Company and
the Company waives any right or remedy to require that any action be brought
against the Trust or any other person or entity before proceeding against the
Company.

     Section 1.6. Subrogation.

     The Company shall be subrogated to all (if any) rights of the Trust in
respect of any amounts paid to the Beneficiaries by the Company under this
Agreement; provided, however, that the 

                                       2
<PAGE>
 
Company shall not (except to the extent required by mandatory provisions of law)
be entitled to enforce or exercise any rights which it may acquire by way of
subrogation or any indemnity, reimbursement or other agreement, in all cases as
a result of payment under this Agreement, if, at the time of any such payment,
any amounts are due and unpaid under this Agreement.


                                   ARTICLE II

     Section 2.1. Binding Effect.

     All guarantees and agreements contained in this Agreement shall bind the
successors, assigns, receivers, trustees and representatives of the Company and
shall inure to the benefit of the Beneficiaries.

     Section 2.2. Amendment.

     So long as there remains any Beneficiary or any Trust Preferred Securities
are outstanding, this Agreement shall not be modified or amended in any manner
adverse to such Beneficiary or to the holders of the Trust Preferred Securities.

     Section 2.3. Notices.

     Any notice, request or other communication required or permitted to be
given hereunder shall be given in writing by delivering the same against receipt
therefor by facsimile transmission (confirmed by mail), telex or by registered
or certified mail, addressed as follows (and if so given, shall be deemed given
when mailed or upon receipt of an answer-back, if sent by telex):

          GBB Capital I                
          c/o Greater Bay Bancorp      
          2860 West Bayshore Road      
          Palo Alto, California 94303  
          Facsimile No.: (415) 813-8211
          Attention:  Steven C. Smith  
                                       
          Greater Bay Bancorp          
          2860 West Bayshore Road      
          Palo Alto, California 94303  
          Facsimile No.: (415) 813-8211
          Attention:  Steven C. Smith   

                                       3
<PAGE>
 
     Section 2.4. Choice of Law.

     THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA (WITHOUT REGARD TO CONFLICT
OF LAW PRINCIPLES).

                                       4
<PAGE>
 
     THIS AGREEMENT is executed as of the day and year first above written.

                                      GREATER BAY BANCORP


                                  By: /s/ Steven C. Smith
                                      -------------------------------------
                                      Steven C. Smith
                                      Executive Vice President, Chief Operating 
                                      Officer and Chief Financial Officer


                                      GBB Capital I


                                  By: /s/ Steven C. Smith
                                      -------------------------------------
                                      Steven C. Smith
                                      Administrative Trustee

                                       5

<PAGE>
 
                                                                    EXHIBIT 4.14

                        SUPPLEMENTAL DEBENTURE AGREEMENT
                        --------------------------------


          THIS SUPPLEMENTAL DEBENTURE AGREEMENT, dated as of March 27, 1997, 
is made pursuant to Article VIII.1 of the Debenture Agreement dated as of
September 27, 1995, as amended by the Supplemental Debenture Agreement dated as
of November 22, 1996 and the Supplemental Debenture Agreement dated as of
November 27, 1996 (the "Debenture Agreement"), pursuant to which Greater Bay
Bancorp, a California corporation ("Greater Bay"), has issued 11.5% Subordinated
Debentures Due 2005 (the "Debentures"). All capitalized terms used herein and
not otherwise defined shall have the meaning given to them in the Debenture
Agreement.


                                    RECITALS

          WHEREAS, Article IV.1 of the Debenture Agreement provides that "the
indebtedness represented by the Debentures and the payment of the principal of
and interest on each and all of the Debentures is hereby expressly subordinated,
to the extent and in the manner hereinafter set forth, in right of payment to
the prior payment in full of all Senior Indebtedness."

          WHEREAS, Article I.1 of the Debenture Agreement provides that Senior
Indebtedness means "the principal of, premium, if any, and interest on, and any
other payment due pursuant to any of the following whether outstanding on the
date hereof or thereafter created, assumed or incurred:  (1) all indebtedness of
the Company for money borrowed (including indebtedness of others guaranteed by
the Company and other direct credit substitutes) other than the Debentures, (2)
any indebtedness or obligation of the Company as to which it is expressly
provided that such indebtedness or obligation is senior to the Debentures, (3)
any amendments, renewals, extensions, deferrals, modifications and refundings of
any such indebtedness described in subsection (1) or (2) above, unless in either
case in the instrument creating or evidencing any such indebtedness or pursuant
to which it is outstanding it is expressly provided that such indebtedness is
not superior in right of payment to the Debentures, and (4) Derivative
Obligations."

          WHEREAS, Greater Bay anticipates entering into a Junior Subordinated
Indenture between Greater Bay and Wilmington Trust Company, as Trustee  (the
"Indenture") pursuant to which Greater Bay will issue 9.75% Junior Subordinated
Deferrable Interest Debentures Due April 1, 2027 (the "Junior Subordinated
Debentures").

          WHEREAS, Section 13.1 of the Indenture provides that payment of the
principal of (and premium, if any) and interest on each and all of the Junior
Subordinated Debentures is "subordinate and subject in right of payment to the
prior payment in full of all amounts then due and payable in respect of all
Senior and Subordinated Debt."

          WHEREAS, Section 1.1 of the Indenture provides that "Senior and
Subordinated Debt shall be deemed to include the 11.5% Subordinated Debentures
Due 2005 of the Company."

                                       1
<PAGE>
 
          WHEREAS, Article VIII.1 of the Debenture Agreement provides that
Greater Bay may, when authorized by a Board Resolution, enter into a
Supplemental Debenture Agreement for the purpose of curing any ambiguity or
making any other provision with respect to matters or questions arising under
the Debenture Agreement which shall not adversely affect the interests of the
Holders of Debentures in any material respect.

          WHEREAS, on March 27, 1997 the Board of Directors of Greater Bay
authorized the amendment of the Debenture Agreement to clarify that,
notwithstanding the definition of Senior Indebtedness contained in Article I.1
of the Debenture Agreement, the Junior Subordinated Debentures shall not
constitute Senior Indebtedness within the meaning of the Debenture Agreement.

          WHEREAS, Greater Bay desires to amend the Debenture Agreement to
reflect that, notwithstanding the definition of Senior Indebtedness contained in
Article I.1 of the Debenture Agreement, the Junior Subordinated Debentures shall
not constitute Senior Indebtedness within the meaning of the Debenture
Agreement.
 

                                   AMENDMENT

          NOW, THEREFORE, Greater Bay hereby amends the Debenture Agreement to
reflect that, notwithstanding the definition of Senior Indebtedness contained in
Article I.1 of the Debenture Agreement, the Junior Subordinated Debentures shall
not constitute Senior Indebtedness within the meaning of the Debenture
Agreement.


                               GENERAL PROVISIONS

          As amended by this Supplemental Debenture Agreement, the Debenture
Agreement is in all respects ratified and confirmed and, as amended by this
Supplemental Debenture Agreement, shall be read, taken and construed as one and
the same instrument.
 
          This Supplemental Debenture Agreement shall become a legally effective
and binding instrument as of the date hereof.

                                       2
<PAGE>
 
          IN WITNESS WHEREOF, Greater Bay has caused this Supplemental Debenture
Agreement to be duly signed and acknowledged by its officers all as of the day
and year first above written.

                              GREATER BAY BANCORP


                              By: /s/ David L. Kalkbrenner
                                  ------------------------------------
                                  David L. Kalkbrenner, President and
                                  Chief Executive Officer
 

Attest:

/s/ Steven C. Smith
- ------------------------------------
Steven C. Smith, Assistant Secretary

 

 

                                       3


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission