EXHIBIT 3.1

                              AMENDED AND RESTATED

                            ARTICLES OF INCORPORATION

                                       OF

                               JENNER TECHNOLOGIES



         Anthony E. Maida III and Timothy Stevens certify that:

         1. They are the duly  elected and acting  Chief  Executive  Officer and
Assistant  Secretary,   respectively  of  Jenner   Technologies,   a  California
corporation (the "Corporation").

         2. The Articles of  Incorporation of the Corporation are hereby amended
and  restated  to read in their  entirety  as set forth on  Exhibit  A  attached
hereto.

         3. The attached  Amended and Restated  Articles of  Incorporation  have
been duly approved by the Board of Directors of the Corporation.

         4. The attached  Amended and Restated  Articles of  Incorporation  have
been duly  approved by the  required  vote of the  outstanding  shares of Common
Stock and Preferred  Stock  entitled to vote in accordance  with the Articles of
Incorporation  of this  Corporation  and Sections 902 and 903 of the  California
Corporations Code. The total number of outstanding shares of each class entitled
to  vote  with  respect  to the  attached  amendment  and  restatement  was  (i)
16,867,827  shares of Common Stock and (ii) 10,550,000 shares of Preferred Stock
(consisting of 8,550,000 shares of Series A Preferred Stock and 2,000,000 shares
of Series B Preferred Stock). The number of shares of Common Stock and Preferred
Stock voting in favor of the  amendment  equaled or exceeded the vote  required.
The vote required was a majority of the  outstanding  shares of Common Stock and
Preferred Stock each voting separately as a class.


                                      


         The undersigned 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 their own knowledge.
        
         Executed at Palo Alto, California on June 18, 1996.

                                                /s/ ANTHONY E. MAIDA III
                                                -------------------------
                                                Anthony E. Maida III
                                                Chief Executive Officer



                                                /s/ TIMOTHY STEVENS
                                                -------------------------
                                                Timothy Stevens
                                                Assistant Secretary






                                       -2-





                                    EXHIBIT A

                              AMENDED AND RESTATED

                            ARTICLES OF INCORPORATION

                                       OF

                               JENNER TECHNOLOGIES


                                       I.

         The name of this corporation is Jenner Technologies.


                                       II.

         The  purpose  of this  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
Corporations Code.


                                      III.

         This  corporation  is  authorized  to issue two  classes of stock to be
designated, respectively, "Common Stock" and "Preferred Stock." The total number
of shares which the corporation is authorized to issue is 35,000,000  shares, of
which 30,000,000 shares are Common Stock, $0.001 par value, and 5,000,000 shares
are Preferred Stock,  $0.001 par value.  Preferred Stock may be issued from time
to time in one or more series.

         Subject to the  provisions  set forth in  Section 5 of this  Article IV
hereof,  the board of  directors of the  corporation  is  authorized  to fix the
number of shares of any series of any Preferred  Stock and to determine or alter
the rights, preferences,  privileges and restrictions granted to or imposed upon
any  wholly  unissued  series of  Preferred  Stock  and,  within  the limits and
restrictions  stated in any  resolution or resolutions of the board of directors
of the  corporation  originally  fixing  the number of shares  constituting  any
series of Preferred Stock, to increase or decrease,  but not below the number of
shares of any such  series  then  outstanding,  the number of shares of any such
series  subsequent  to the issue of shares of that  series.  The first series of
Preferred  Stock shall be designated  "Series A Preferred"  and shall consist of
2,137,500  shares.  The second  series of  Preferred  Stock shall be  designated
"Series B Preferred" and shall consist of 500,000 shares. The Series A Preferred
and the Series B Preferred are sometimes  collectively referred to herein as the
"Preferred Stock."





         Upon the  filing of these  Restated  Articles  of  Incorporation,  each
outstanding  share of  Common  Stock,  Series A  Preferred  Stock  and  Series B
Preferred  Stock  shall be split up and  converted  into  0.248013819  shares of
Common  Stock,   Series  A  Preferred  Stock  and  Series  B  Preferred   Stock,
respectively.  In lieu of any  fractional  shares  to which a holder  of  Common
Stock,  Series A Preferred Stock and Series B Preferred Stock would otherwise be
entitled,  the holder shall  receive one whole share of Common  Stock,  Series A
Preferred Stock or Series B Preferred Stock, as the case may be.


                                       IV.

         The rights,  preferences,  privileges  and  restrictions  granted to or
imposed upon the Common Stock and Preferred Stock are as follows:

         1. Dividends.  The holders of Preferred  Stock shall be entitled,  when
and if declared by the board of directors of the  corporation,  to dividends out
of assets of the corporation  legally available  therefor at the rate of $0.0605
per share in the case of the Series A  Preferred  and  $0.0907  per share in the
case of the Series B  Preferred,  per annum.  Dividends on the  Preferred  Stock
shall be payable in  preference  and prior to any payment of any dividend on the
Common  Stock of the  corporation.  Thereafter,  the holders of Common Stock and
Preferred  Stock  shall  be  entitled,  when  and if  declared  by the  board of
directors  of the  corporation,  to dividends  out of assets of the  corporation
legally  available  therefor,  provided,  however,  that no such dividend may be
declared or paid on any shares of Common Stock or Preferred  Stock unless at the
same time an equivalent  dividend is declared or paid on all outstanding  shares
of Common Stock and Preferred  Stock,  and provided further that the dividend on
any series of any Preferred Stock shall be payable at the same rate per share as
would be payable on the shares of Common  Stock or other  securities  into which
such series of Preferred  Stock is convertible  immediately  prior to the record
date of such dividend.  The right to dividends on shares of the Common Stock and
Preferred Stock shall not be cumulative, and no right shall accrue to holders of
Common  Stock or  Preferred  Stock by reason of the fact that  dividends on said
shares are not declared in any prior period.

         Dividends,  if paid or declared and set apart for payment, must be paid
or declared and set apart for payment in full on each series of Preferred  Stock
contemporaneously,  or if less than full  dividends are paid or declared and set
apart for payment on each series of  Preferred  Stock,  the same  percentage  of
dividends  shall be paid or  declared  and set  apart for  payment  on each such
series of Preferred Stock,  based on the aggregate  dividend  preference of each
such series.

         2.       Liquidation Preference.

                  (a) Preference.  In the event of any liquidation,  dissolution
or winding up of the  corporation,  either  voluntarily  or  involuntarily,  the
holders of Preferred Stock shall be entitled to receive, prior and in preference
to any  distribution of any of the assets or surplus funds of the corporation to
the holders of Common Stock of the corporation,  an amount equal to: (i) $0.8064
per share of Series A Preferred  then held,  plus a further  amount equal to (A)
the  number  of  shares of Series A  Preferred  then held  multiplied  by .0605,
multiplied by (B) the number of years such shares were held prior to the


                                       -2-



effective date of the liquidation, dissolution or winding up of the corporation;
and (ii)  $1.2096  per share of Series B  Preferred  then  held,  plus a further
amount  equal to (A) the  number  of  shares  of  Series B  Preferred  then held
multiplied by .0907, multiplied by (B) the number of years such shares were held
prior to the effective date of the liquidation, dissolution or winding up of the
corporation.

                  If upon such  liquidation,  dissolution  or  winding up of the
corporation,  the assets of the corporation are  insufficient to provide for the
cash payment to such  holders of the full  preferential  aforesaid  preferential
amounts, then the remaining assets of the corporation shall be distributed among
the holders of Preferred Stock in the proportion that the aggregate preferential
amount of shares  of  Preferred  Stock  held by each  such  holder  bears to the
aggregate preferential amount of all shares of Preferred Stock.

                  After the  payment or setting  apart of payment to the holders
of the  Preferred  Stock of the  preferential  amounts so  payable to them,  the
holders of Common  Stock shall be  entitled  to receive  pro rata the  remaining
assets of the corporation.

                  (b)  Consolidation or Merger. A consolidation or merger of the
corporation with or into any other corporation or corporations, or a sale of all
or substantially  all of the assets of the  corporation,  or a series of related
transactions  in which more than 50% of the voting power of the  corporation  is
disposed of, shall not be deemed to be a liquidation,  dissolution or winding up
within the meaning of this paragraph 2.

                  (c)  Noncash  Distributions.  If  any  of  the  assets  of the
corporation  are to be distributed  other than in cash under this paragraph 2 or
for any purpose,  then the board of directors of the corporation  shall promptly
engage independent  competent appraisers to determine the value of the assets to
be distributed to the holders of Preferred  Stock. The corporation  shall,  upon
receipt of such appraiser's valuation, give prompt written notice to each holder
of shares of Preferred Stock of the appraiser's valuation.

                  (d) Repurchase of Shares.  In connection  with  repurchases by
this corporation of its Common Stock, pursuant to its agreements with certain of
the holders thereof,  Section 502 and 503 of the California General  Corporation
Law shall not apply in all or in part with respect to such repurchases.

         3. Conversion. The holders of the Preferred Stock shall have conversion
rights as follows (the "Conversion Rights"):

                  (a) Right to Convert.  Each share of Preferred  Stock shall be
convertible,  at the option of the holder thereof, at any time after the date of
issuance of such share at the office of the  corporation  or any transfer  agent
for the Preferred  Stock.  Each share of each series of Preferred Stock shall be
convertible  into the  number of fully paid and  nonassessable  shares of Common
Stock which results from dividing the Conversion Value (as hereinafter  defined)
per share in effect for such series at the time of  conversion  by the per share
Conversion Price (as hereinafter defined) of such series. The initial Conversion
Price per share of Series A  Preferred  Stock shall be $0.8064 and the per share
Conversion


                                       -3-



Value of Series A Preferred shall be $0.8064.  The initial  Conversion Price per
share of Series B Preferred shall be $1.2096 and the Conversion  Value per share
of Series B Preferred  shall be $1.2096.  The initial  Conversion  Price of each
series shall be subject to adjustment from time to time as provided  below.  The
number of  shares of Common  Stock  into  which a series of  Preferred  Stock is
convertible is hereinafter referred to as the "Conversion Rate" of such series.

                  (b) Automatic Conversion.  Each share of Preferred Stock shall
automatically  be converted  into shares of Common  Stock at its then  effective
Conversion  Rate (i)  immediately  upon the  closing of an  underwritten  public
offering  pursuant to an effective  registration  statement under the Securities
Act of 1933, as amended,  the aggregate  gross  proceeds to the  corporation  of
which  exceed  $7,500,000  and the per share  price to the public of which is at
least  $8.00,  prior to  deduction  of  underwriting  commissions  and  offering
expenses;  or (ii) upon the effective date of the affirmative vote of holders of
more than 80% of all  outstanding  series  Preferred  Stock voting together as a
single class.

                  (c)  Mechanics of  Conversion.  Before any holder of Preferred
Stock shall be entitled  to convert the same into shares of Common  Stock,  such
holder shall surrender the certificate or certificates therefor,  duly endorsed,
at the office of the  corporation  or of any  transfer  agent for the  Preferred
Stock and shall give written notice to the corporation at such office that he or
she elects to convert the same (except  that no such written  notice of election
to convert shall be necessary in the event of an automatic  conversion  pursuant
to  paragraph  3(b)  hereof).  The  corporation  shall,  as soon as  practicable
thereafter, issue and deliver at such office to such holder of Preferred Stock a
certificate  or  certificates  for the number of shares of Common Stock to which
such holder shall be entitled. Such conversion shall be deemed to have been made
immediately  before the close of business on the date of such  surrender  of the
shares  of  Preferred  Stock  to be  converted,  (except  that in the case of an
automatic  conversion  pursuant to paragraph  3(b)(i) such  conversion  shall be
deemed to have been made immediately before the closing of the offering referred
to in  paragraph  3(b)(i))  and the person or persons  entitled  to receive  the
shares of Common Stock  issuable upon such  conversion  shall be treated for all
purposes as the record  holder or holders of such shares of Common Stock at such
time.

                  (d) Fractional  Shares.  In lieu of any  fractional  shares to
which the holder of a series  Preferred Stock would  otherwise be entitled,  the
corporation shall pay cash equal to such fraction  multiplied by the fair market
value of one share of such series of Preferred  Stock as determined by the board
of directors of the corporation.

                  (e) Adjustment of Conversion  Price.  The Conversion  Price of
each series of Preferred  Stock shall be subject to adjustment from time to time
as follows:

                             (i) If the corporation shall issue any Common Stock
other than "Excluded  Stock",  as defined below,  for a consideration  per share
less than the Conversion Price of such series in effect immediately prior to the
issuance  of  such  Common  Stock  (excluding  stock  dividends,   subdivisions,
split-ups,  combinations  or dividend which are covered by paragraph  3(e)(iii),
(iv), (v) and (vi)),  the  Conversion  Price of such series in effect after each
such  issuance  shall  thereafter  (except as provided in this Section  3(e)) be
adjusted to a price equal to the quotient obtained by dividing:


                                       -4-



                                    (A)  an amount equal to the sum of

                                            (x) the  total  number  of shares of
Common Stock  outstanding  (including  any shares of Common Stock  issuable upon
conversion of the  Preferred  Stock,  or deemed to have been issued  pursuant to
subdivision (3) of this clause (i) and to clause (ii) below)  immediately  prior
to such  issuance  multiplied by the  Conversion  Price of such series in effect
immediately prior to such issuance, plus

                                            (y) the  consideration  received  by
the corporation upon such issuance, by

                                    (B) the  total  number  of  shares of Common
Stock outstanding (including any shares of Common Stock issuable upon conversion
of the Preferred Stock or deemed to have been issued pursuant to subdivision (3)
of this clause (i) and to clause (ii) below)  immediately prior to such issuance
plus the additional  shares of Common Stock deemed to be issued in such issuance
(but not including any additional  shares of Common Stock deemed to be issued as
a  result  of any  adjustment  in  the  Conversion  Price  resulting  from  such
issuance).

                                    For the  purposes of any  adjustment  of the
Conversion Price pursuant to this clause (i), the following  provisions shall be
applicable:

                                            (1) In the case of the  issuance  of
Common  Stock for cash,  the  consideration  shall be deemed to be the amount of
cash paid therefor after deducting any discounts or commissions paid or incurred
by the corporation in connection with the issuance and sale thereof.

                                            (2) In the case of the  issuance  of
Common  Stock for a  consideration  in whole or in part  other  than  cash,  the
consideration  other than cash  shall be deemed to be the fair value  thereof as
determined  by the board of directors of the  corporation,  in  accordance  with
generally accepted accounting treatment.

                                            (3) In the case of the  issuance  of
(i) options to  purchase or rights to  subscribe  for Common  Stock  (other than
Excluded   Stock),   (ii)  securities  by  their  terms  con  vertible  into  or
exchangeable for Common Stock (other than Excluded  Stock),  or (iii) options to
purchase or rights to subscribe for such convertible or exchangeable securities:

                                                     (A) the  aggregate  maximum
number of shares of Common Stock  deliverable  upon  exercise of such options to
purchase or rights to  subscribe  for Common  Stock shall be deemed to have been
issued at the time such  options or rights were  issued and for a  consideration
equal to the  consideration  (determined in the manner  provided in subdivisions
(1) and (2) above),  if any,  received by the  corporation  upon the issuance of
such options or rights plus the minimum  purchase price provided in such options
or rights for the Common Stock covered thereby;



                                       -5-



                                                     (B) the  aggregate  maximum
number of shares of Common Stock  deliverable  upon conversion of or in exchange
for any such  convertible or  exchangeable  securities,  or upon the exercise of
options to purchase or rights to subscribe for such  convertible or exchangeable
securities and  subsequent  conversion or exchange  thereof,  shall be deemed to
have been  issued at the time such  securities  were  issued or such  options or
rights were issued and for a consideration  equal to the consideration  received
by the  corporation  for any such  securities  and  related  options  or  rights
(excluding  any  cash  received  on  account  of  accrued  interest  or  accrued
dividends),  plus the  additional  consideration,  if any, to be received by the
corporation  upon the conversion or exchange of such  securities or the exercise
of any  related  options  or  rights  (the  consideration  in  each  case  to be
determined in the manner provided in subdivisions (1) and (2) above);

                                                     (C)  on any  change  in the
number of shares of Common Stock  deliverable  upon exercise of any such options
or rights or  conversion  of or exchange for such  convertible  or  exchangeable
securities,  or on any change in the  minimum  purchase  price of such  options,
rights  or  securities,  other  than a change  resulting  from the  antidilution
provisions of such options,  rights or securities,  the  Conversion  Price shall
forthwith be readjusted to such Conversion  Price as would have obtained had the
adjustment made upon (x) the issuance of such options,  rights or securities not
exercised, converted or exchanged prior to such change, as the case may be, been
made upon the basis of such change or (y) the options or rights  related to such
securities not converted or exchanged prior to such change,  as the case may be,
been made upon the basis of such change; and

                                                     (D)  on the  expiration  of
any such  options or rights,  the  termination  of any such rights to convert or
exchange or the expiration of any options or rights related to such  convertible
or exchangeable  securities,  the Conversion Price shall forthwith be readjusted
to such Conversion Price as would have obtained had the adjustment made upon the
issuance of such options,  rights,  convertible  or  exchangeable  securities or
options or rights related to such convertible or exchangeable securities, as the
case may be,  been  made upon the basis of the  issuance  of only the  number of
shares of Common  Stock  actually  issued upon the  exercise of such  options or
rights,  upon the  conversion or exchange of such  convertible  or  exchangeable
securities  or upon the  exercise  of the  options  or  rights  related  to such
convertible or exchangeable securities, as the case may be.

                            (ii)    "Excluded Stock" shall mean:

                                    (A)  all   shares   of   Common   Stock  and
securities convertible into Common Stock issued and outstanding on the date this
document is filed with the California Secretary of State;

                                    (B) all  shares of Common  Stock  into which
the shares of Preferred Stock are convertible;

                                    (C) all  shares  of  Common  Stock  or other
securities  to be issued  after the date of filing  these  Amended and  Restated
Articles to  consultants,  directors or employees of the  corporation  which are
approved by the board of directors of the corporation and any shares of Common


                                       -6-



Stock or other securities  currently  outstanding  repurchased from consultants,
directors or employees of the corporation;

                                    (D) all shares issued to equipment  lessors,
banks or financial institutions in connection with equipment financing, lines of
credit or similar transactions or shares issued in connection with a transaction
involving a technology license, distribution rights or similar rights.

                                All   outstanding   shares  of  Excluded   Stock
(including  shares  issuable upon  conversion  of the Preferred  Stock) shall be
deemed to be outstanding  for all purposes of the  computations  of subparagraph
3(e)(i) above.

                           (iii)  If  the  number  of  shares  of  Common  Stock
outstanding  at any time after the date hereof is increased by a stock  dividend
payable in shares of Common Stock or by a  subdivision  or split-up of shares of
Common  Stock,  then,  on the  date  such  payment  is made or  such  change  is
effective,  the Conversion  Price shall be  appropriately  decreased so that the
number of shares of Common Stock  issuable on conversion of the Preferred  Stock
shall be increased in proportion to such increase of outstanding shares.

                           (iv)  If  the  number  of  shares  of  Common   Stock
outstanding  at any time after the date hereof is decreased by a combination  of
the  outstanding  shares of Common Stock,  then,  on the effective  date of such
combination,  the Conversion Price shall be appropriately  increased so that the
number of shares of Common Stock  issuable on conversion of the Preferred  Stock
shall be decreased in proportion to such decrease in outstanding shares.

                           (v) In case  the  corporation  shall  declare  a cash
dividend upon its Common Stock payable  otherwise than out of retained  earnings
or shall  distribute  to holders of its Common Stock shares of its capital stock
(other than Common Stock), stock or other securities of other persons, evidences
of indebtedness  issued by the corporation or other persons,  assets  (excluding
cash dividends) or options or rights  (excluding  options to purchase and rights
to subscribe for Common Stock or other securities of the corporation convertible
into or exchangeable for Common Stock),  then, in each such case, the holders of
Preferred  Stock shall,  concurrent  with the  distribution to holders of Common
Stock,  receive a like  distribution  based  upon the number of shares of Common
Stock into which the Series A Preferred or Series B  Preferred,  as the case may
be, is then convertible.

                           (vi) In case,  at any time after the date hereof,  of
any  capital  reorganization,  or  any  reclassification  of  the  stock  of the
corporation (other than as a result of a stock dividend or subdivision, split-up
or combination of shares),  or the  consolidation  or merger of the  corporation
with or into another person (other than a  consolidation  or merger in which the
corporation is the continuing  entity and which does not result in any change in
the Common Stock),  or of the sale or other  disposition of all or substantially
all the properties and assets of the corporation,  the shares of Preferred Stock
shall, after such reorganization, reclassification,  consolidation, merger, sale
or other disposition, be convertible into the kind and number of shares of stock
or other  securities or property of the  corporation  or otherwise to which such
holder would have been entitled if immediately prior to such reorganization,


                                       -7-


reclassification,  consolidation,  merger, sale or other disposition such holder
had  converted  his or her shares of  Preferred  Stock into  Common  Stock.  The
provisions   of  this  clause   (vi)  shall   similarly   apply  to   successive
reorganizations,  reclassifications,  consolidations,  mergers,  sales  or other
dispositions.

                           (vii) All  calculations  under  this  paragraph  3(e)
shall be made to the nearest cent or to the nearest one  hundredth  (1/100) of a
share, as the case may be.

                  (f) Minimal Adjustments. No adjustment in the Conversion Price
need be made if such adjustment would result in a change in the Conversion Price
of less than $0.01. Any adjustment of less than $0.01 which is not made shall be
carried  forward  and  shall  be  made  at the  time of and  together  with  any
subsequent  adjustment which, on a cumulative basis, amounts to an adjustment of
$0.01 or more in the Conversion Price.

                  (g) No  Impairment.  The  corporation  will not,  through  any
reorganization,  recapitalization,  transfer of assets,  consolidation,  merger,
dissolution, issue or sale of securities or any other voluntary action, avoid or
seek to avoid the  observance or  performance of any of the terms to be observed
or performed  hereunder by the corporation,  but will at all times in good faith
assist in the carrying out of all the  provisions of this paragraph 3 and in the
taking of all such action as may be necessary or appropriate in order to protect
the Conversion Rights of the holders of the Preferred Stock against  impairment.
This provision shall not restrict the corporation's  right to amend its Articles
of Incorporation with the requisite shareholder consent.

                  (h) Certificate as to Adjustments. Upon the occurrence of each
adjustment or  readjustment of the Conversion Rate pursuant to this paragraph 3,
the  corporation  at its expense  shall  promptly  compute  such  adjustment  or
readjustment in accordance with the terms hereof and prepare and furnish to each
holder of  Preferred  Stock a  certificate  setting  forth  such  adjustment  or
readjustment  and  showing in detail the facts  upon  which such  adjustment  or
readjustment is based. The corporation  shall,  upon written request at any time
of any  holder of  Preferred  Stock,  furnish or cause to be  furnished  to such
holder a like certificate  setting forth (i) such adjustments and readjustments,
(ii) the Conversion  Rate at the time in effect,  and (iii) the number of shares
of Common  Stock and the  amount,  if any, of other  property  which at the time
would be received upon the conversion of Preferred Stock.

                  (i) Notices of Record Date.  In the event of any taking by the
corporation  of a record  of the  holders  of any  class of  securities  for the
purpose of  determining  the  holders  thereof  who are  entitled to receive any
dividend  (other  than a cash  dividend)  or other  distribution,  any  right to
subscribe for, purchase or otherwise acquire any shares of stock of any class or
any other  securities or property or to receive any other right, the corporation
shall mail to each holder of Preferred  Stock at least twenty (20) days prior to
such record date, a notice specifying the date on which any such record is to be
taken for the purpose of such dividend or distribution or right,  and the amount
and character of such dividend, distribution or right.

                  (j)  Reservation  of  Stock  Issuable  Upon  Conversion.   The
corporation  shall at all times reserve and keep available out of its authorized
but unissued shares of Common Stock solely for the


                                       -8-



purpose of effecting the  conversion  of the shares of the Preferred  Stock such
number of its shares of Common Stock as shall from time to time be sufficient to
effect the conversion of all outstanding  shares of the Preferred  Stock; and if
at any time the number of authorized  but unissued  shares of Common Stock shall
not be sufficient to effect the conversion of all then outstanding shares of the
Preferred  Stock, the corporation will take such corporate action as may, in the
opinion of its counsel,  be necessary  to increase its  authorized  but unissued
shares of Common Stock to such number of shares as shall be sufficient  for such
purpose.

                  (k) Notices.  Any notice  required by the  provisions  of this
paragraph 3 to be given to the holder of shares of the Preferred  Stock shall be
deemed given if  deposited  in the United  States  mail,  postage  prepaid,  and
addressed to each holder of record at his address  appearing on the books of the
corporation.

         4. Voting Rights.  The holder of each share of Preferred Stock shall be
entitled  to the number of votes  equal to the number of shares of Common  Stock
into which each share of  Preferred  Stock could be converted on the record date
for the vote or consent of  shareholders  and,  except as otherwise  required by
law,  shall have voting  rights and powers equal to the voting rights and powers
of the  Common  Stock.  The  holder of each share of  Preferred  Stock  shall be
entitled to notice of any shareholders' meeting in accordance with the bylaws of
the  corporation  and shall  vote with  holders  of the  Common  Stock  upon the
election  of  directors  and  upon  any  other  matter  submitted  to a vote  of
shareholders,  except those  matters  required by law to be submitted to a class
vote.  Fractional  votes shall not,  however,  be permitted  and any  fractional
voting rights resulting from the above formula (after  aggregating all shares of
Common Stock into which  shares of Preferred  Stock held by each holder could be
converted)  shall be rounded to the nearest whole number (with one-half  rounded
upward to one).

         5.       Protective Provisions.

                  (a) Preferred  Stock. In addition to any other rights provided
by law, so long as any Preferred  Stock shall be  outstanding,  the  corporation
shall not without  first  obtaining  the approval of the holders of more than 50
percent of all outstanding series of Preferred Stock voting together as a single
class:

                             (i)  Change  the  authorized  number  of  shares of
Preferred Stock;

                             (ii) Alter or change  the  rights,  preferences  or
privileges of the Preferred Stock materially and adversely; or

                             (iii)  Create  any  new  class  of  shares   having
preference over or being on parity with the Preferred Stock.

         6. Residual  Rights.  All rights accruing to the outstanding  shares of
the  corporation  not  expressly  provided for to the  contrary  herein shall be
vested with the Common Stock.



                                       -9-


                                       V.

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

         2.  Indemnification of Corporate Agents. This corporation is authorized
to indemnify the directors and officers of the corporation to the fullest extent
permissible under California law.

         3. 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 this  corporation
relating to acts or omissions occurring prior to such repeal or modification.


                                      * * *



                                      -10-