EXHIBIT 3.4

                              AMENDED AND RESTATED
                                     BYLAWS
                                       OF
                            SGX PHARMACEUTICALS, INC.

                                   ARTICLE I

                                     OFFICES

      SECTION 1. REGISTERED OFFICE. The registered office of the corporation in
the State of Delaware shall be in the City of Wilmington, County of New Castle.

      SECTION 2. OTHER OFFICES. The corporation shall also have and maintain an
office or principal place of business at such place as may be fixed by the Board
of Directors, and may also have offices at such other places, both within and
without the State of Delaware as the Board of Directors may from time to time
determine or the business of the corporation may require.

                                   ARTICLE II

                                 CORPORATE SEAL

      SECTION 3. CORPORATE SEAL. The Board of Directors may adopt a corporate
seal. The corporate seal shall consist of a die bearing the name of the
corporation and the inscription, "Corporate Seal-Delaware." Said seal may be
used by causing it or a facsimile thereof to be impressed or affixed or
reproduced or otherwise.

                                  ARTICLE III

                             STOCKHOLDERS' MEETINGS

      SECTION 4. PLACE OF MEETINGS. Meetings of the stockholders of the
corporation may be held at such place, either within or without the State of
Delaware, as may be determined from time to time by the Board of Directors. The
Board of Directors may, in its sole discretion, determine that the meeting shall
not be held at any place, but may instead be held solely by means of remote
communication as provided under the Delaware General Corporation Law (the
"DGCL").

      SECTION 5. ANNUAL MEETINGS.

            (a)   The annual meeting of the stockholders of the corporation, for
the purpose of election of directors and for such other business as may lawfully
come before it, shall be held on such date and at such time as may be designated
from time to time by the Board of Directors. Nominations of persons for election
to the Board of Directors of the corporation and the proposal of business to be
considered by the stockholders may be made at an annual meeting of stockholders:
(i) pursuant to the corporation's notice of meeting of stockholders; (ii) by or
at the direction of the Board of Directors; or (iii) by any stockholder of the
corporation who was a


                                       1.


stockholder of record at the time of giving the stockholder's notice provided
for in the following paragraph, who is entitled to vote at the meeting and who
complied with the notice procedures set forth in this Section 5.

            (b) At an annual meeting of the stockholders, only such business
shall be conducted as shall have been properly brought before the meeting. For
nominations or other business to be properly brought before an annual meeting by
a stockholder pursuant to clause (iii) of Section 5(a) of these Amended and
Restated Bylaws, (i) the stockholder must have given timely notice thereof in
writing to the Secretary of the corporation, (ii) such other business must be a
proper matter for stockholder action under DGCL, (iii) if the stockholder, or
the beneficial owner on whose behalf any such proposal or nomination is made,
has provided the corporation with a Solicitation Notice (as defined in clause
(iii) of the last sentence of this Section 5(b)), such stockholder or beneficial
owner must, in the case of a proposal, have delivered a proxy statement and form
of proxy to holders of at least the percentage of the corporation's voting
shares required under applicable law to carry any such proposal, or, in the case
of a nomination or nominations, have delivered a proxy statement and form of
proxy to holders of a percentage of the corporation's voting shares reasonably
believed by such stockholder or beneficial owner to be sufficient to elect the
nominee or nominees proposed to be nominated by such stockholder, and must, in
either case, have included in such materials the Solicitation Notice, and (iv)
if no Solicitation Notice relating thereto has been timely provided pursuant to
this section, the stockholder or beneficial owner proposing such business or
nomination must not have solicited a number of proxies sufficient to have
required the delivery of such a Solicitation Notice under this Section 5. To be
timely, a stockholder's notice shall be delivered to the Secretary at the
principal executive offices of the corporation not later than the close of
business on the 90th day nor earlier than the close of business on the 120th day
prior to the first anniversary of the preceding year's annual meeting; provided,
however, that in the event that the date of the annual meeting is advanced more
than 30 days prior to or delayed by more than 30 days after the anniversary of
the preceding year's annual meeting, notice by the stockholder to be timely must
be so delivered not earlier than the close of business on the 120th day prior to
such annual meeting and not later than the close of business on the later of the
90th day prior to such annual meeting or the 10th day following the day on which
public announcement of the date of such meeting is first made. In no event shall
the public announcement of an adjournment of an annual meeting commence a new
time period for the giving of a stockholder's notice as described above. Such
stockholder's notice shall set forth: (A) as to each person whom the stockholder
proposes to nominate for election or reelection as a director all information
relating to such person that is required to be disclosed in solicitations of
proxies for election of directors in an election contest, or is otherwise
required, in each case pursuant to Regulation 14A under the Securities Exchange
Act of 1934, as amended (the "1934 ACT") and Rule 14a-4(d) thereunder (including
such person's written consent to being named in the proxy statement as a nominee
and to serving as a director if elected); (B) as to any other business that the
stockholder proposes to bring before the meeting, a brief description of the
business desired to be brought before the meeting, the reasons for conducting
such business at the meeting and any material interest in such business of such
stockholder and the beneficial owner, if any, on whose behalf the proposal is
made; and (C) as to the stockholder giving the notice and the beneficial owner,
if any, on whose behalf the nomination or proposal is made (X) the name and
address of such stockholder, as they appear on the corporation's books, and of
such beneficial owner, (Y) the class and number of shares of the corporation
which are owned beneficially and of record by such stockholder and such
beneficial

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owner, and (Z) whether either such stockholder or beneficial owner intends to
deliver a proxy statement and form of proxy to holders of, in the case of the
proposal, at least the percentage of the corporation's voting shares required
under applicable law to carry the proposal or, in the case of a nomination or
nominations, a sufficient number of holders of the corporation's voting shares
to elect such nominee or nominees (an affirmative statement of such intent, a
"SOLICITATION NOTICE").

            (c) Notwithstanding anything in the third sentence of Section 5(b)
of these Amended and Restated Bylaws to the contrary, in the event that the
number of directors to be elected to the Board of Directors of the corporation
is increased and there is no public announcement naming all of the nominees for
director or specifying the size of the increased Board of Directors made by the
corporation at least 100 days prior to the first anniversary of the preceding
year's annual meeting, a stockholder's notice required by this Section 5 shall
also be considered timely, but only with respect to nominees for any new
positions created by such increase, if it shall be delivered to the Secretary at
the principal executive offices of the corporation not later than the close of
business on the 10th day following the day on which such public announcement is
first made by the corporation.

            (d) Only such persons who are nominated in accordance with the
procedures set forth in this Section 5 shall be eligible to serve as directors
and only such business shall be conducted at a meeting of stockholders as shall
have been brought before the meeting in accordance with the procedures set forth
in this Section 5. Except as otherwise provided by law, the Chairman of the
meeting shall have the power and duty to determine whether a nomination or any
business proposed to be brought before the meeting was made, or proposed, as the
case may be, in accordance with the procedures set forth in these Amended and
Restated Bylaws and, if any proposed nomination or business is not in compliance
with these Amended and Restated Bylaws, to declare that such defective proposal
or nomination shall not be presented for stockholder action at the meeting and
shall be disregarded.

            (e) Notwithstanding the foregoing provisions of this Section 5, in
order to include information with respect to a stockholder proposal in the proxy
statement and form of proxy for a stockholders' meeting, stockholders must
provide notice as required by the regulations promulgated under the 1934 Act.
Nothing in these Amended and Restated Bylaws shall be deemed to affect any
rights of stockholders to request inclusion of proposals in the corporation
proxy statement pursuant to Rule 14a-8 under the 1934 Act.

            (f) For purposes of this Section 5, "public announcement" shall mean
disclosure in a press release reported by the Dow Jones News Service, Associated
Press or comparable national news service or in a document publicly filed by the
corporation with the Securities and Exchange Commission pursuant to Section 13,
14 or 15(d) of the 1934 Act.

            SECTION 6. SPECIAL MEETINGS.

            (a) Special meetings of the stockholders of the corporation may be
called, for any purpose or purposes, by (i) the Chairman of the Board of
Directors, (ii) the Chief Executive Officer, or (iii) the Board of Directors
pursuant to a resolution adopted by a majority of the total

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number of authorized directors (whether or not there exist any vacancies in
previously authorized directorships at the time any such resolution is presented
to the Board of Directors for adoption).

            (b) If a special meeting is properly called by any person or persons
other than the Board of Directors, the request shall be in writing, specifying
the general nature of the business proposed to be transacted, and shall be
delivered personally or sent by certified or registered mail, return receipt
requested, to the Chairman of the Board of Directors, the Chief Executive
Officer, or the Secretary of the corporation. No business may be transacted at
such special meeting otherwise than specified in such notice. The Board of
Directors shall determine the time and place of such special meeting, which
shall be held not less than 35 nor more than 120 days after the date of the
receipt of the request. Upon determination of the time and place of the meeting,
the officer receiving the request shall cause notice to be given to the
stockholders entitled to vote, in accordance with the provisions of Section 7 of
these Amended and Restated Bylaws. Nothing contained in this paragraph (b) shall
be construed as limiting, fixing, or affecting the time when a meeting of
stockholders called by action of the Board of Directors may be held.

            (c) Nominations of persons for election to the Board of Directors
may be made at a special meeting of stockholders at which directors are to be
elected pursuant to the corporation's notice of meeting (i) by or at the
direction of the Board of Directors or (ii) by any stockholder of the
corporation who is a stockholder of record at the time of giving notice provided
for in these Amended and Restated Bylaws who shall be entitled to vote at the
meeting and who complies with the notice procedures set forth in this Section
6(c). In the event the corporation calls a special meeting of stockholders for
the purpose of electing one or more directors to the Board of Directors, any
such stockholder may nominate a person or persons (as the case may be), for
election to such position(s) as specified in the corporation's notice of
meeting, if the stockholder's notice required by Section 5(b) of these Amended
and Restated Bylaws shall be delivered to the Secretary at the principal
executive offices of the corporation not earlier than the close of business on
the 120th day prior to such special meeting and not later than the close of
business on the later of the 90th day prior to such meeting or the 10th day
following the day on which public announcement is first made of the date of the
special meeting and of the nominees proposed by the Board of Directors to be
elected at such meeting. In no event shall the public announcement of an
adjournment of a special meeting commence a new time period for the giving of a
stockholder's notice as described above.

      SECTION 7. NOTICE OF MEETINGS. Except as otherwise provided by law,
notice, given in writing or by electronic transmission, of each meeting of
stockholders shall be given not less than 10 nor more than 60 days before the
date of the meeting to each stockholder entitled to vote at such meeting, such
notice to specify the place, if any, date and hour, in the case of special
meetings, the purpose or purposes of the meeting, and the means of remote
communications, if any, by which stockholders and proxy holders may be deemed to
be present in person and vote at any such meeting. If mailed, notice is deemed
given when deposited in the United States mail, postage prepaid, directed to the
stockholder at such stockholder's address as it appears on the records of the
corporation. If sent via electronic transmission, notice is deemed given as of
the sending time recorded at the time of transmission. Notice of the time,
place, if any, and purpose of any meeting of stockholders may be waived in
writing, signed by the person entitled to notice thereof, or by electronic
transmission by such person, either before or after such meeting, and

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will be waived by any stockholder by his attendance thereat in person, by remote
communication, if applicable, or by proxy, except when the stockholder attends a
meeting for the express purpose of objecting, at the beginning of the meeting,
to the transaction of any business because the meeting is not lawfully called or
convened. Any stockholder so waiving notice of such meeting shall be bound by
the proceedings of any such meeting in all respects as if due notice thereof had
been given.

      SECTION 8. QUORUM. At all meetings of stockholders, except where otherwise
provided by statute or by the Amended and Restated Certificate of Incorporation,
or by these Amended and Restated Bylaws, the presence, in person, by remote
communication, if applicable, or by proxy duly authorized, of the holders of a
majority of the outstanding shares of stock entitled to vote shall constitute a
quorum for the transaction of business. In the absence of a quorum, any meeting
of stockholders may be adjourned, from time to time, either by the chairman of
the meeting or by vote of the holders of a majority of the shares represented
thereat, but no other business shall be transacted at such meeting. The
stockholders present at a duly called or convened meeting, at which a quorum is
present, may continue to transact business until adjournment, notwithstanding
the withdrawal of enough stockholders to leave less than a quorum. Except as
otherwise provided by law or by applicable stock exchange or Nasdaq Stock Market
rules, or by the Amended and Restated Certificate of Incorporation or these
Amended and Restated Bylaws, in all matters other than the election of
directors, the affirmative vote of a majority of shares present in person, by
remote communication, if applicable, or represented by proxy at the meeting and
entitled to vote generally on the subject matter shall be the act of the
stockholders. Except as otherwise provided by statute, the Amended and Restated
Certificate of Incorporation or these Amended and Restated Bylaws, directors
shall be elected by a plurality of the votes of the shares present in person, by
remote communication, if applicable, or represented by proxy duly authorized at
the meeting and entitled to vote on the election of directors. Where a separate
vote by a class or classes or series is required, except where otherwise
provided by the statute or by the Amended and Restated Certificate of
Incorporation or these Amended and Restated Bylaws, a majority of the
outstanding shares of such class or classes or series, present in person, by
remote communication, if applicable, or represented by proxy duly authorized,
shall constitute a quorum entitled to take action with respect to that vote on
that matter. Except where otherwise provided by statute or by the Amended and
Restated Certificate of Incorporation or these Amended and Restated Bylaws, the
affirmative vote of the majority (plurality, in the case of the election of
directors) of the outstanding shares of such class or classes or series present
in person, by remote communication, if applicable, or represented by proxy duly
authorized at the meeting shall be the act of such class or classes or series.

      SECTION 9. ADJOURNMENT AND NOTICE OF ADJOURNED MEETINGS. Any meeting of
stockholders, whether annual or special, may be adjourned from time to time
either by the chairman of the meeting or by the vote of a majority of the shares
present in person, by remote communication, if applicable, or represented by
proxy duly authorized. When a meeting is adjourned to another time or place, if
any, notice need not be given of the adjourned meeting if the time and place, if
any, thereof are announced at the meeting at which the adjournment is taken. At
the adjourned meeting, the corporation may transact any business which might
have been transacted at the original meeting. If the adjournment is for more
than 30 days or if after the adjournment a new record date is fixed for the
adjourned meeting, a notice of the adjourned meeting shall be given to each
stockholder of record entitled to vote at the meeting.

                                       5.


      SECTION 10. VOTING RIGHTS. For the purpose of determining those
stockholders entitled to vote at any meeting of the stockholders, except as
otherwise provided by law, only persons in whose names shares stand on the stock
records of the corporation on the record date, as provided in Section 12 of
these Amended and Restated Bylaws, shall be entitled to vote at any meeting of
stockholders. Every person entitled to vote shall have the right to do so either
in person, by remote communication, if applicable, or by an agent or agents
authorized by a proxy granted in accordance with Delaware law. An agent so
appointed need not be a stockholder. No proxy shall be voted after three years
from its date of creation unless the proxy provides for a longer period.

      SECTION 11. JOINT OWNERS OF STOCK. If shares or other securities having
voting power stand of record in the names of two or more persons, whether
fiduciaries, members of a partnership, joint tenants, tenants in common, tenants
by the entirety, or otherwise, or if two or more persons have the same fiduciary
relationship respecting the same shares, unless the Secretary is given written
notice to the contrary and is furnished with a copy of the instrument or order
appointing them or creating the relationship wherein it is so provided, their
acts with respect to voting shall have the following effect: (a) if only one
votes, his act binds all; (b) if more than one votes, and the vote is not evenly
split on a particular matter, the act of the majority so voting binds all; (c)
if more than one votes, but the vote is evenly split on any particular matter,
each faction may vote the securities in question proportionally, or may apply to
the Delaware Court of Chancery for relief as provided in the DGCL, Section
217(b). If the instrument filed with the Secretary shows that any such tenancy
is held in unequal interests, a majority or even-split for the purpose of clause
(c) shall be a majority or even-split in interest.

      SECTION 12. LIST OF STOCKHOLDERS. The Secretary shall prepare and make, at
least 10 days before every meeting of stockholders, a complete list of the
stockholders entitled to vote at said meeting, arranged in alphabetical order,
showing the address of each stockholder and the number of shares registered in
the name of each stockholder. Such list shall be open to the examination of any
stockholder, for any purpose germane to the meeting, (a) on a reasonably
accessible electronic network, provided that the information required to gain
access to such list is provided with the notice of the meeting, or (b) during
ordinary business hours, at the principal place of business of the corporation.
In the event that the corporation determines to make the list available on an
electronic network, the corporation may take reasonable steps to ensure that
such information is available only to stockholders of the corporation. The list
shall be open to examination of any stockholder during the time of the meeting
as provided by law.

      SECTION 13. ACTION WITHOUT MEETING. No action shall be taken by the
stockholders except at an annual or special meeting of stockholders called in
accordance with these Amended and Restated Bylaws, and no action shall be taken
by the stockholders by written consent.

      SECTION 14. ORGANIZATION.

            (a) At every meeting of stockholders, the Chairman of the Board of
Directors, or, if a Chairman has not been appointed or is absent, the President,
or, if the President is absent, a chairman of the meeting chosen by a majority
in interest of the stockholders entitled to vote, present in person or by proxy
duly authorized, shall act as chairman. The Secretary, or, in his

                                       6.


absence, an Assistant Secretary directed to do so by the President, shall act as
secretary of the meeting.

            (b) The Board of Directors of the corporation shall be entitled to
make such rules or regulations for the conduct of meetings of stockholders as it
shall deem necessary, appropriate or convenient. Subject to such rules and
regulations of the Board of Directors, if any, the chairman of the meeting shall
have the right and authority to prescribe such rules, regulations and procedures
and to do all such acts as, in the judgment of such chairman, are necessary,
appropriate or convenient for the proper conduct of the meeting, including,
without limitation, establishing an agenda or order of business for the meeting,
rules and procedures for maintaining order at the meeting and the safety of
those present, limitations on participation in such meeting to stockholders of
record of the corporation and their duly authorized and constituted proxies and
such other persons as the chairman shall permit, restrictions on entry to the
meeting after the time fixed for the commencement thereof, limitations on the
time allotted to questions or comments by participants and regulation of the
opening and closing of the polls for balloting on matters which are to be voted
on by ballot. The date and time of the opening and closing of the polls for each
matter upon which the stockholders will vote at the meeting shall be announced
at the meeting. Unless and to the extent determined by the Board of Directors or
the chairman of the meeting, meetings of stockholders shall not be required to
be held in accordance with rules of parliamentary procedure.

                                   ARTICLE IV

                                    DIRECTORS

      SECTION 15. NUMBER AND TERM OF OFFICE. The authorized number of directors
of the corporation shall be fixed in accordance with the Amended and Restated
Certificate of Incorporation. Directors need not be stockholders unless so
required by the Amended and Restated Certificate of Incorporation. If for any
reason, the directors shall not have been elected at an annual meeting, they may
be elected as soon thereafter as convenient at a special meeting of the
stockholders called for that purpose in the manner provided in these Amended and
Restated Bylaws.

      SECTION 16. POWERS. The powers of the corporation shall be exercised, its
business conducted and its property controlled by the Board of Directors, except
as may be otherwise provided by statute or by the Amended and Restated
Certificate of Incorporation.

      SECTION 17. CLASSES OF DIRECTORS. Subject to the rights of the holders of
any series of Preferred Stock to elect additional directors under specified
circumstances, the directors shall be divided into three classes designated as
Class I, Class II and Class III, respectively. Initially, directors shall be
assigned to each class in accordance with a resolution or resolutions adopted by
the Board of Directors. At the first annual meeting of stockholders following
the initial classification of the Board of Directors, the term of office of the
Class I directors shall expire and Class I directors shall be elected for a full
term of three years. At the second annual meeting of stockholders following such
initial classification, the term of office of the Class II directors shall
expire and Class II directors shall be elected for a full term of three years.
At the third annual meeting of stockholders following such initial
classification, the term of office of the Class III

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directors shall expire and Class III directors shall be elected for a full term
of three years. At each succeeding annual meeting of stockholders, directors
shall be elected for a full term of three years to succeed the directors of the
class whose terms expire at such annual meeting.

      Notwithstanding the foregoing provisions of this section, each director
shall serve until his successor is duly elected and qualified or until his
earlier death, resignation or removal. No decrease in the number of directors
constituting the Board of Directors shall shorten the term of any incumbent
director.

      SECTION 18. VACANCIES. Unless otherwise provided in the Amended and
Restated Certificate of Incorporation and subject to the rights of the holders
of any series of Preferred Stock, any vacancies on the Board of Directors
resulting from death, resignation, disqualification, removal or other causes and
any newly created directorships resulting from any increase in the number of
directors shall, unless the Board of Directors determines by resolution that any
such vacancies or newly created directorships shall be filled by stockholders,
be filled only by the affirmative vote of a majority of the directors then in
office, even though less than a quorum of the Board of Directors. Any director
elected in accordance with the preceding sentence shall hold office for the
remainder of the full term of the director for which the vacancy was created or
occurred and until such director's successor shall have been elected and
qualified. A vacancy in the Board of Directors shall be deemed to exist under
this Section 18 in the case of the death, removal or resignation of any
director.

      SECTION 19. RESIGNATION. Any director may resign at any time by delivering
his or her notice in writing or by electronic transmission to the Secretary,
such resignation to specify whether it will be effective at a particular time,
upon receipt by the Secretary or at the pleasure of the Board of Directors. If
no such specification is made, it shall be deemed effective at the pleasure of
the Board of Directors. When one or more directors shall resign from the Board
of Directors, effective at a future date, a majority of the directors then in
office, including those who have so resigned, shall have power to fill such
vacancy or vacancies, the vote thereon to take effect when such resignation or
resignations shall become effective, and each director so chosen shall hold
office for the unexpired portion of the term of the director whose place shall
be vacated and until his successor shall have been duly elected and qualified.

      SECTION 20. REMOVAL.

            (a) Subject to the rights of any series of Preferred Stock to elect
additional directors under specified circumstances, neither the Board of
Directors nor any individual director may be removed without cause.

            (b) Subject to any limitation imposed by law, any individual
director or directors may be removed with cause by the affirmative vote of the
holders of at least 66 2/3% of the voting power of all then outstanding shares
of capital stock of the corporation entitled to vote generally at an election of
directors, voting together as a single class.

      SECTION 21. MEETINGS.

            (a) REGULAR MEETINGS. Unless otherwise restricted by the Amended and
Restated Certificate of Incorporation, regular meetings of the Board of
Directors may be held at

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any time or date and at any place within or without the State of Delaware which
has been designated by the Board of Directors and publicized among all
directors, either orally or in writing, by telephone, including a
voice-messaging system or other system designed to record and communicate
messages, facsimile, telegraph or telex, or by electronic mail or other
electronic means. No further notice shall be required for regular meetings of
the Board of Directors.

            (b) SPECIAL MEETINGS. Unless otherwise restricted by the Amended and
Restated Certificate of Incorporation, special meetings of the Board of
Directors may be held at any time and place within or without the State of
Delaware whenever called by the Chairman of the Board, the President or a
majority of the authorized number of directors.

            (c) MEETINGS BY ELECTRONIC COMMUNICATIONS EQUIPMENT. Any member of
the Board of Directors, or of any committee thereof, may participate in a
meeting by means of conference telephone or other communications equipment by
means of which all persons participating in the meeting can hear each other, and
participation in a meeting by such means shall constitute presence in person at
such meeting.

            (d) NOTICE OF SPECIAL MEETINGS. Notice of the time and place of all
special meetings of the Board of Directors shall be orally or in writing, by
telephone, including a voice messaging system or other system or technology
designed to record and communicate messages, facsimile, telegraph or telex, or
by electronic mail or other electronic means, during normal business hours, at
least 24 hours before the date and time of the meeting. If notice is sent by
U.S. mail, it shall be sent by first class mail, charges prepaid, at least three
days before the date of the meeting. Notice of any meeting may be waived in
writing, or by electronic transmission, at any time before or after the meeting
and will be waived by any director by attendance thereat, except when the
director attends the meeting for the express purpose of objecting, at the
beginning of the meeting, to the transaction of any business because the meeting
is not lawfully called or convened.

            (e) WAIVER OF NOTICE. The transaction of all business at any meeting
of the Board of Directors, or any committee thereof, however called or noticed,
or wherever held, shall be as valid as though had at a meeting duly held after
regular call and notice, if a quorum be present and if, either before or after
the meeting, each of the directors not present who did not receive notice shall
sign a written waiver of notice or shall waive notice by electronic
transmission. All such waivers shall be filed with the corporate records or made
a part of the minutes of the meeting.

      SECTION 22. QUORUM AND VOTING.

            (a) Unless the Amended and Restated Certificate of Incorporation
requires a greater number, a quorum of the Board of Directors shall consist of a
majority of the exact number of directors fixed from time to time by the Board
of Directors in accordance with the Amended and Restated Certificate of
Incorporation; provided, however, at any meeting whether a quorum be present or
otherwise, a majority of the directors present may adjourn from time to time
until the time fixed for the next regular meeting of the Board of Directors,
without notice other than by announcement at the meeting.

                                       9.


            (b) At each meeting of the Board of Directors at which a quorum is
present, all questions and business shall be determined by the affirmative vote
of a majority of the directors present, unless a different vote be required by
law, the Amended and Restated Certificate of Incorporation or these Amended and
Restated Bylaws.

      SECTION 23. ACTION WITHOUT MEETING. Unless otherwise restricted by the
Amended and Restated Certificate of Incorporation or these Amended and Restated
Bylaws, any action required or permitted to be taken at any meeting of the Board
of Directors or of any committee thereof may be taken without a meeting, if all
members of the Board of Directors or committee, as the case may be, consent
thereto in writing or by electronic transmission, and such writing or writings
or transmission or transmissions are filed with the minutes of proceedings of
the Board of Directors or committee. Such filing shall be in paper form if the
minutes are maintained in paper form and shall be in electronic form if the
minutes are maintained in electronic form.

      SECTION 24. FEES AND COMPENSATION. Directors shall be entitled to such
compensation for their services as may be approved by the Board of Directors,
including, if so approved, by resolution of the Board of Directors, a fixed sum
and expenses of attendance, if any, for attendance at each regular or special
meeting of the Board of Directors and at any meeting of a committee of the Board
of Directors. Nothing herein contained shall be construed to preclude any
director from serving the corporation in any other capacity as an officer,
agent, employee, or otherwise and receiving compensation therefor.

      SECTION 25. COMMITTEES.

            (a) EXECUTIVE COMMITTEE. The Board of Directors may appoint an
Executive Committee to consist of one or more members of the Board of Directors.
The Executive Committee, to the extent permitted by law and provided in the
resolution of the Board of Directors shall have and may exercise all the powers
and authority of the Board of Directors in the management of the business and
affairs of the corporation, and may authorize the seal of the corporation to be
affixed to all papers which may require it; but no such committee shall have the
power or authority in reference to (i) approving or adopting, or recommending to
the stockholders, any action or matter expressly required by the DGCL to be
submitted to stockholders for approval, or (ii) adopting, amending or repealing
any bylaw of the corporation.

            (b) OTHER COMMITTEES. The Board of Directors may, from time to time,
appoint such other committees as may be permitted by law. Such other committees
appointed by the Board of Directors shall consist of one or more members of the
Board of Directors and shall have such powers and perform such duties as may be
prescribed by the resolution or resolutions creating such committees, but in no
event shall any such committee have the powers denied to the Executive Committee
in these Amended and Restated Bylaws.

            (c) TERM. The Board of Directors, subject to any requirements of any
outstanding series of Preferred Stock and the provisions of subsections (a) or
(b) of this Bylaw, may at any time increase or decrease the number of members of
a committee or terminate the existence of a committee. The membership of a
committee member shall terminate on the date of his death or voluntary
resignation from the committee or from the Board of Directors. The Board of
Directors may at any time for any reason remove any individual committee member

                                      10.



and the Board of Directors may fill any committee vacancy created by death,
resignation, removal or increase in the number of members of the committee. The
Board of Directors may designate one or more directors as alternate members of
any committee, who may replace any absent or disqualified member at any meeting
of the committee, and, in addition, in the absence or disqualification of any
member of a committee, the member or members thereof present at any meeting and
not disqualified from voting, whether or not he or they constitute a quorum, may
unanimously appoint another member of the Board of Directors to act at the
meeting in the place of any such absent or disqualified member.

            (d) MEETINGS. Unless the Board of Directors shall otherwise provide,
regular meetings of the Executive Committee or any other committee appointed
pursuant to this Section 25 shall be held at such times and places as are
determined by the Board of Directors, or by any such committee, and when notice
thereof has been given to each member of such committee, no further notice of
such regular meetings need be given thereafter. Special meetings of any such
committee may be held at any place which has been determined from time to time
by such committee, and may be called by any director who is a member of such
committee, upon notice to the members of such committee of the time and place of
such special meeting given in the manner provided for the giving of notice to
members of the Board of Directors of the time and place of special meetings of
the Board of Directors. Notice of any special meeting of any committee may be
waived in writing at any time before or after the meeting and will be waived by
any director by attendance thereat, except when the director attends such
special meeting for the express purpose of objecting, at the beginning of the
meeting, to the transaction of any business because the meeting is not lawfully
called or convened. Unless otherwise provided by the Board of Directors in the
resolutions authorizing the creation of the committee, a majority of the
authorized number of members of any such committee shall constitute a quorum for
the transaction of business, and the act of a majority of those present at any
meeting at which a quorum is present shall be the act of such committee.

      SECTION 26. ORGANIZATION. At every meeting of the directors, the Chairman
of the Board of Directors, or, if a Chairman has not been appointed or is
absent, the President (if a director), or if the President is absent, the most
senior Vice President (if a director), or, in the absence of any such person, a
chairman of the meeting chosen by a majority of the directors present, shall
preside over the meeting. The Secretary, or in his absence, any Assistant
Secretary directed to do so by the President, shall act as secretary of the
meeting.

                                    ARTICLE V

                                    OFFICERS

      SECTION 27. OFFICERS DESIGNATED. The officers of the corporation shall
include, if and when designated by the Board of Directors, the Chairman of the
Board of Directors, the Chief Executive Officer, the President, one or more Vice
Presidents, the Secretary, the Chief Financial Officer, the Treasurer and the
Controller, all of whom shall be elected at the annual organizational meeting of
the Board of Directors. The Board of Directors may also appoint one or more
Assistant Secretaries, Assistant Treasurers, Assistant Controllers and such
other officers and agents with such powers and duties as it shall deem
necessary. The Board of Directors may assign such additional titles to one or
more of the officers as it shall deem appropriate. Any one

                                      11.



person may hold any number of offices of the corporation at any one time unless
specifically prohibited therefrom by law. The salaries and other compensation of
the officers of the corporation shall be fixed by or in the manner designated by
the Board of Directors.

      SECTION 28. TENURE AND DUTIES OF OFFICERS.

            (a) GENERAL. All officers shall hold office at the pleasure of the
Board of Directors and until their successors shall have been duly elected and
qualified, unless sooner removed. Any officer elected or appointed by the Board
of Directors may be removed at any time by the Board of Directors. If the office
of any officer becomes vacant for any reason, the vacancy may be filled by the
Board of Directors.

            (b) DUTIES OF CHAIRMAN OF THE BOARD OF DIRECTORS. The Chairman of
the Board of Directors, when present, shall preside at all meetings of the
stockholders and the Board of Directors. The Chairman of the Board of Directors
shall perform other duties commonly incident to the office and shall also
perform such other duties and have such other powers, as the Board of Directors
shall designate from time to time. If there is no President or Chief Executive
Officer, unless otherwise determined by the Board of Directors, then the
Chairman of the Board of Directors shall also serve as the President of the
corporation and shall have the powers and duties prescribed in paragraph (c) of
this Section 28.

            (c) DUTIES OF PRESIDENT. The President shall preside at all meetings
of the stockholders and at all meetings of the Board of Directors, unless the
Chairman of the Board of Directors has been appointed and is present. Unless
some other officer has been elected Chief Executive Officer of the corporation,
the President shall be the chief executive officer of the corporation and shall,
subject to the control of the Board of Directors, have general supervision,
direction and control of the business and officers of the corporation. The
President shall perform other duties commonly incident to the office and shall
also perform such other duties and have such other powers, as the Board of
Directors shall designate from time to time.

            (d) DUTIES OF VICE PRESIDENTS. The Vice Presidents may assume and
perform the duties of the President in the absence or disability of the
President or whenever the office of President is vacant. The Vice Presidents
shall perform other duties commonly incident to their office and shall also
perform such other duties and have such other powers as the Board of Directors
or the President shall designate from time to time.

            (e) DUTIES OF SECRETARY. The Secretary shall attend all meetings of
the stockholders and of the Board of Directors and shall record all acts and
proceedings thereof in the minute book of the corporation. The Secretary shall
give notice in conformity with these Amended and Restated Bylaws of all meetings
of the stockholders and of all meetings of the Board of Directors and any
committee thereof requiring notice. The Secretary shall perform all other duties
provided for in these Amended and Restated Bylaws and other duties commonly
incident to the office and shall also perform such other duties and have such
other powers, as the Board of Directors shall designate from time to time. The
President may direct any Assistant Secretary to assume and perform the duties of
the Secretary in the absence or disability of the Secretary, and each Assistant
Secretary shall perform other duties commonly incident to the

                                      12.



office and shall also perform such other duties and have such other powers as
the Board of Directors or the President shall designate from time to time.

            (f) DUTIES OF CHIEF FINANCIAL OFFICER. The Chief Financial Officer
shall keep or cause to be kept the books of account of the corporation in a
thorough and proper manner and shall render statements of the financial affairs
of the corporation in such form and as often as required by the Board of
Directors or the President. The Chief Financial Officer, subject to the order of
the Board of Directors, shall have the custody of all funds and securities of
the corporation. The Chief Financial Officer shall perform other duties commonly
incident to the office and shall also perform such other duties and have such
other powers as the Board of Directors or the President shall designate from
time to time. The President may direct the Treasurer or any Assistant Treasurer,
or the Controller or any Assistant Controller to assume and perform the duties
of the Chief Financial Officer in the absence or disability of the Chief
Financial Officer, and each Treasurer and Assistant Treasurer and each
Controller and Assistant Controller shall perform other duties commonly incident
to the office and shall also perform such other duties and have such other
powers as the Board of Directors or the President shall designate from time to
time.

      SECTION 29. DELEGATION OF AUTHORITY. The Board of Directors may from time
to time delegate the powers or duties of any officer to any other officer or
agent, notwithstanding any provision hereof.

      SECTION 30. RESIGNATIONS. Any officer may resign at any time by giving
notice in writing or by electronic transmission to the Board of Directors or to
the President or to the Secretary. Any such resignation shall be effective when
received by the person or persons to whom such notice is given, unless a later
time is specified therein, in which event the resignation shall become effective
at such later time. Unless otherwise specified in such notice, the acceptance of
any such resignation shall not be necessary to make it effective. Any
resignation shall be without prejudice to the rights, if any, of the corporation
under any contract with the resigning officer.

      SECTION 31. REMOVAL. Any officer may be removed from office at any time,
either with or without cause, by the affirmative vote of a majority of the
directors in office at the time, or by the unanimous written consent of the
directors in office at the time, or by any committee or superior officers upon
whom such power of removal may have been conferred by the Board of Directors.

                                   ARTICLE VI

           EXECUTION OF CORPORATE INSTRUMENTS AND VOTING OF SECURITIES
                            OWNED BY THE CORPORATION

      SECTION 32. EXECUTION OF CORPORATE INSTRUMENTS. The Board of Directors
may, in its discretion, determine the method and designate the signatory officer
or officers, or other person or persons, to execute on behalf of the corporation
any corporate instrument or document, or to sign on behalf of the corporation
the corporate name without limitation, or to enter into contracts on behalf of
the corporation, except where otherwise provided by law or these

                                      13.



Amended and Restated Bylaws, and such execution or signature shall be binding
upon the corporation.

      All checks and drafts drawn on banks or other depositaries on funds to the
credit of the corporation or in special accounts of the corporation shall be
signed by such person or persons as the Board of Directors shall authorize so to
do.

      Unless authorized or ratified by the Board of Directors or within the
agency power of an officer, no officer, agent or employee 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 for any amount.

      SECTION 33. VOTING OF SECURITIES OWNED BY THE CORPORATION. All stock and
other securities of other corporations owned or held by the corporation for
itself, or for other parties in any capacity, shall be voted, and all proxies
with respect thereto shall be executed, by the person authorized so to do by
resolution of the Board of Directors, or, in the absence of such authorization,
by the Chairman of the Board of Directors, the Chief Executive Officer, the
President, or any Vice President.

                                  ARTICLE VII

                                 SHARES OF STOCK

      SECTION 34. FORM AND EXECUTION OF CERTIFICATES. Certificates for the
shares of stock of the corporation shall be in such form as is consistent with
the Amended and Restated Certificate of Incorporation and applicable law. Every
holder of stock in the corporation shall be entitled to have a certificate
signed by or in the name of the corporation by the Chairman of the Board of
Directors, the Chief Executive Officer, the President or any Vice President and
by the Chief Financial Officer, Treasurer or Assistant Treasurer or the
Secretary or Assistant Secretary, certifying the number of shares owned by him
in the corporation. Any or all of the signatures on the certificate may be
facsimiles. 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 with the same effect as if he were such officer,
transfer agent, or registrar at the date of issue. Each certificate shall state
upon the face or back thereof, in full or in summary, all of the powers,
designations, preferences, and rights, and the limitations or restrictions of
the shares authorized to be issued or shall, except as otherwise required by
law, set forth on the face or back a statement that the corporation will furnish
without charge to each stockholder who so requests the powers, designations,
preferences and relative, participating, optional, or other special rights of
each class of stock or series thereof and the qualifications, limitations or
restrictions of such preferences and/or rights. Within a reasonable time after
the issuance or transfer of uncertificated stock, the corporation shall send to
the registered owner thereof a written notice containing the information
required to be set forth or stated on certificates pursuant to this section or
otherwise required by law or with respect to this section a statement that the
corporation will furnish without charge to each stockholder who so requests the
powers, designations, preferences and relative participating, optional or other
special rights of each class

                                      14.



of stock or series thereof and the qualifications, limitations or restrictions
of such preferences and/or rights.

      SECTION 35. LOST CERTIFICATES. A new certificate or certificates shall be
issued in place of any certificate or certificates theretofore issued by the
corporation alleged to have been lost, stolen, or destroyed, upon the making of
an affidavit of that fact by the person claiming the certificate of stock to be
lost, stolen, or destroyed. The corporation may require, as a condition
precedent to the issuance of a new certificate or certificates, the owner of
such lost, stolen, or destroyed certificate or certificates, or the owner's
legal representative, to agree to indemnify the corporation in such manner as it
shall require or to give the corporation a surety bond in such form and amount
as it may direct as indemnity against any claim that may be made against the
corporation with respect to the certificate alleged to have been lost, stolen,
or destroyed.

      SECTION 36. TRANSFERS.

            (a) Transfers of record of shares of stock of the corporation shall
be made only upon its books by the holders thereof, in person or by attorney
duly authorized, and upon the surrender of a properly endorsed certificate or
certificates for a like number of shares.

            (b) The corporation shall have power to enter into and perform any
agreement with any number of stockholders of any one or more classes of stock of
the corporation to restrict the transfer of shares of stock of the corporation
of any one or more classes owned by such stockholders in any manner not
prohibited by the DGCL.

      SECTION 37. FIXING RECORD DATES.

            (a) In order that the corporation may determine the stockholders
entitled to notice of or to vote at any meeting of stockholders or any
adjournment thereof, the Board of Directors may fix, in advance, a record date,
which record date shall not precede the date upon which the resolution fixing
the record date is adopted by the Board of Directors, and which record date
shall, subject to applicable law, not be more than 60 nor less than 10 days
before the date of such meeting. If no record date is fixed by the Board of
Directors, the record date for determining stockholders entitled to notice of or
to vote at a meeting of stockholders shall be at the close of business on the
day next preceding the day on which notice is given, or if notice is waived, at
the close of business on the day next preceding the day on which the meeting is
held. A determination of stockholders of record entitled to notice of or to vote
at a meeting of stockholders shall apply to any adjournment of the meeting;
provided, however, that the Board of Directors may fix a new record date for the
adjourned meeting.

            (b) In order that the corporation may determine the stockholders
entitled to receive payment of any dividend or other distribution or allotment
of any rights or the stockholders entitled to exercise any rights in respect of
any change, conversion or exchange of stock, or for the purpose of any other
lawful action, the Board of Directors may fix, in advance, a record date, which
record date shall not precede the date upon which the resolution fixing the
record date is adopted, and which record date shall be not more than 60 days
prior to such action. If no record date is fixed, the record date for
determining stockholders for any such purpose shall

                                      15.



be at the close of business on the day on which the Board of Directors adopts
the resolution relating thereto.

      SECTION 38. REGISTERED STOCKHOLDERS. The corporation shall be entitled to
recognize the exclusive right of a person registered on its books as the owner
of shares to receive dividends, and to vote as such owner, and shall not be
bound to recognize any equitable or other claim to or interest in such share or
shares on the part of any other person whether or not it shall have express or
other notice thereof, except as otherwise provided by the laws of Delaware.

                                  ARTICLE VIII

                       OTHER SECURITIES OF THE CORPORATION

      SECTION 39. EXECUTION OF OTHER SECURITIES. All bonds, debentures and other
corporate securities of the corporation, other than stock certificates (covered
in Section 34), may be signed by the Chairman of the Board of Directors, the
Chief Executive Officer, the President or any Vice President, or such other
person as may be authorized by the Board of Directors, and the corporate seal
impressed thereon or a facsimile of such seal imprinted thereon and attested by
the signature of the Secretary or an Assistant Secretary, or the Chief Financial
Officer or Treasurer or an Assistant Treasurer; provided, however, that where
any such bond, debenture or other corporate security shall be authenticated by
the manual signature, or where permissible facsimile signature, of a trustee
under an indenture pursuant to which such bond, debenture or other corporate
security shall be issued, the signatures of the persons signing and attesting
the corporate seal on such bond, debenture or other corporate security may be
the imprinted facsimile of the signatures of such persons. Interest coupons
appertaining to any such bond, debenture or other corporate security,
authenticated by a trustee as aforesaid, shall be signed by the Treasurer or an
Assistant Treasurer of the corporation or such other person as may be authorized
by the Board of Directors, or bear imprinted thereon the facsimile signature of
such person. In case any officer who shall have signed or attested any bond,
debenture or other corporate security, or whose facsimile signature shall appear
thereon or on any such interest coupon, shall have ceased to be such officer
before the bond, debenture or other corporate security so signed or attested
shall have been delivered, such bond, debenture or other corporate security
nevertheless may be adopted by the corporation and issued and delivered as
though the person who signed the same or whose facsimile signature shall have
been used thereon had not ceased to be such officer of the corporation.

                                   ARTICLE IX

                                    DIVIDENDS

      SECTION 40. DECLARATION OF DIVIDENDS. Dividends upon the capital stock of
the corporation, subject to the provisions of the Amended and Restated
Certificate of Incorporation and applicable law, if any, may be declared by the
Board of Directors pursuant to law at any regular or special meeting. Dividends
may be paid in cash, in property, or in shares of the capital stock, subject to
the provisions of the Amended and Restated Certificate of Incorporation and
applicable law.

                                      16.



      SECTION 41. DIVIDEND RESERVE. Before payment of any dividend, there may be
set aside out of any funds of the corporation available for dividends such sum
or sums as the Board of Directors from time to time, in their absolute
discretion, think proper as a reserve or reserves to meet contingencies, or for
equalizing dividends, or for repairing or maintaining any property of the
corporation, or for such other purpose as the Board of Directors shall think
conducive to the interests of the corporation, and the Board of Directors may
modify or abolish any such reserve in the manner in which it was created.

                                    ARTICLE X

                                   FISCAL YEAR

      SECTION 42. FISCAL YEAR. The fiscal year of the corporation shall be fixed
by resolution of the Board of Directors.

                                   ARTICLE XI

                                 INDEMNIFICATION

      SECTION 43. INDEMNIFICATION OF DIRECTORS, EXECUTIVE OFFICERS, OTHER
OFFICERS, EMPLOYEES AND OTHER AGENTS.

            (a) DIRECTORS AND EXECUTIVE OFFICERS. The corporation shall
indemnify its directors and executive officers (for the purposes of this Article
XI, "executive officers" shall have the meaning defined in Rule 3b-7 promulgated
under the 1934 Act) to the fullest extent not prohibited by the DGCL or any
other applicable law; provided, however, that the corporation may modify the
extent of such indemnification by individual contracts with its directors and
executive officers; and, provided, further, that the corporation shall not be
required to indemnify any director or executive officer in connection with any
proceeding (or part thereof) initiated by such person unless (i) such
indemnification is expressly required to be made by law, (ii) the proceeding was
authorized by the Board of Directors of the corporation, (iii) such
indemnification is provided by the corporation, in its sole discretion, pursuant
to the powers vested in the corporation under the DGCL or any other applicable
law or (iv) such indemnification is required to be made under subsection (d).

            (b) OTHER OFFICERS, EMPLOYEES AND OTHER AGENTS. The corporation
shall have power to indemnify its other officers, employees and other agents as
set forth in the DGCL or any other applicable law. The Board of Directors shall
have the power to delegate the determination of whether indemnification shall be
given to any such person to such officers or other persons as the Board of
Directors shall determine.

            (c) EXPENSES. The corporation shall advance to any person who was or
is a party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative, by reason of the fact that he is or was a director or executive
officer of the corporation, or is or was serving at the request of the
corporation as a director or executive officer of another corporation,
partnership, joint venture, trust or other enterprise, prior to the final
disposition of the proceeding, promptly

                                      17.



following request therefor, all expenses incurred by any director or executive
officer in connection with such proceeding provided, however, that if the DGCL
requires, an advancement of expenses incurred by a director or executive officer
in his or her capacity as a director or executive officer (and not in any other
capacity in which service was or is rendered by such indemnitee, including,
without limitation, service to an employee benefit plan) shall be made only upon
delivery to the corporation of an undertaking (hereinafter an "undertaking"), by
or on behalf of such indemnitee, to repay all amounts so advanced if it shall
ultimately be determined by final judicial decision from which there is no
further right to appeal (hereinafter a "final adjudication") that such
indemnitee is not entitled to be indemnified for such expenses under this
Section 43 or otherwise.

      Notwithstanding the foregoing, unless otherwise determined pursuant to
paragraph (e) of this Section 43, no advance shall be made by the corporation to
an executive officer of the corporation (except by reason of the fact that such
executive officer is or was a director of the corporation, in which event this
paragraph shall not apply) in any action, suit or proceeding, whether civil,
criminal, administrative or investigative, if a determination is reasonably and
promptly made (i) by the Board of Directors by a majority vote of directors who
were not parties to the proceeding, even if not a quorum, or (ii) by a committee
of such directors designated by a majority vote of such directors, even though
less than a quorum, or (iii) if there are no such directors, or such directors
so direct, by independent legal counsel in a written opinion, that the facts
known to the decision-making party at the time such determination is made
demonstrate clearly and convincingly that such person acted in bad faith or in a
manner that such person did not believe to be in or not opposed to the best
interests of the corporation.

            (d) ENFORCEMENT. Without the necessity of entering into an express
contract, all rights to indemnification and advances to directors and executive
officers under this Bylaw shall be deemed to be contractual rights and be
effective to the same extent and as if provided for in a contract between the
corporation and the director or executive officer. Any right to indemnification
or advances granted by this Section 43 to a director or executive officer shall
be enforceable by or on behalf of the person holding such right in any court of
competent jurisdiction if (i) the claim for indemnification or advances is
denied, in whole or in part, or (ii) no disposition of such claim is made within
90 days of request therefor. The claimant in such enforcement action, if
successful in whole or in part, shall be entitled to be paid also the expense of
prosecuting the claim. In connection with any claim for indemnification, the
corporation shall be entitled to raise as a defense to any such action that the
claimant has not met the standards of conduct that make it permissible under the
DGCL or any other applicable law for the corporation to indemnify the claimant
for the amount claimed. In connection with any claim by an executive officer of
the corporation (except in any action, suit or proceeding, whether civil,
criminal, administrative or investigative, by reason of the fact that such
executive officer is or was a director of the corporation) for advances, the
corporation shall be entitled to raise a defense as to any such action clear and
convincing evidence that such person acted in bad faith or in a manner that such
person did not believe to be in or not opposed to the best interests of the
corporation, or with respect to any criminal action or proceeding that such
person acted without reasonable cause to believe that his conduct was lawful.
Neither the failure of the corporation (including its Board of Directors,
independent legal counsel or its stockholders) to have made a determination
prior to the commencement of such action that indemnification of the claimant is
proper in the circumstances because the officer or director has met the
applicable standard of conduct set forth

                                      18.



in the DGCL or any other applicable law, nor an actual determination by the
corporation (including its Board of Directors, independent legal counsel or its
stockholders) that the claimant has not met such applicable standard of conduct,
shall be a defense to the action or create a presumption that claimant has not
met the applicable standard of conduct. In any suit brought by a director or
executive officer to enforce a right to indemnification or to an advancement of
expenses hereunder, the burden of proving that the director or executive officer
is not entitled to be indemnified, or to such advancement of expenses, under
this Section 43 or otherwise shall be on the corporation.

            (e) NON-EXCLUSIVITY OF RIGHTS. The rights conferred on any person by
this Bylaw shall not be exclusive of any other right which such person may have
or hereafter acquire under any applicable statute, provision of the Amended and
Restated Certificate of Incorporation, Amended and Restated Bylaws, agreement,
vote of stockholders or disinterested directors or otherwise, both as to action
in such person's official capacity and as to action in another capacity while
holding office. The corporation is specifically authorized to enter into
individual contracts with any or all of its directors, officers, employees or
agents respecting indemnification and advances, to the fullest extent not
prohibited by the DGCL, or by any other applicable law.

            (f) SURVIVAL OF RIGHTS. The rights conferred on any person by this
Bylaw shall continue as to a person who has ceased to be a director or executive
officer and shall inure to the benefit of the heirs, executors and
administrators of such a person.

            (g) INSURANCE. To the fullest extent permitted by the DGCL or any
other applicable law, the corporation, upon approval by the Board of Directors,
may purchase insurance on behalf of any person required or permitted to be
indemnified pursuant to this Section 43.

            (h) AMENDMENTS. Any repeal or modification of this Section 43 shall
only be prospective and shall not affect the rights under this Bylaw in effect
at the time of the alleged occurrence of any action or omission to act that is
the cause of any proceeding against any agent of the corporation.

            (i) SAVING CLAUSE. If this Bylaw or any portion hereof shall be
invalidated on any ground by any court of competent jurisdiction, then the
corporation shall nevertheless indemnify each director and executive officer to
the full extent not prohibited by any applicable portion of this Section 43 that
shall not have been invalidated, or by any other applicable law. If this Section
43 shall be invalid due to the application of the indemnification provisions of
another jurisdiction, then the corporation shall indemnify each director and
executive officer to the full extent under any other applicable law.

            (j) CERTAIN DEFINITIONS. For the purposes of this Bylaw, the
following definitions shall apply:

                  (1) The term "proceeding" shall be broadly construed and shall
include, without limitation, the investigation, preparation, prosecution,
defense, settlement,

                                      19.



arbitration and appeal of, and the giving of testimony in, any threatened,
pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative.

                  (2) The term "expenses" shall be broadly construed and shall
include, without limitation, court costs, attorneys' fees, witness fees, fines,
amounts paid in settlement or judgment and any other costs and expenses of any
nature or kind incurred in connection with any proceeding.

                  (3) The term the "corporation" shall include, in addition to
the resulting corporation, any constituent corporation (including any
constituent of a constituent) absorbed in a consolidation or merger which, if
its separate existence had continued, would have had power and authority to
indemnify its directors, officers, and employees or agents, so that any person
who is or was a director, officer, employee or agent of such constituent
corporation, or is or was serving at the request of such constituent corporation
as a director, officer, employee or agent of another corporation, partnership,
joint venture, trust or other enterprise, shall stand in the same position under
the provisions of this Section 43 with respect to the resulting or surviving
corporation as he would have with respect to such constituent corporation if its
separate existence had continued.

                  (4) References to a "director," "executive officer,"
"officer," "employee," or "agent" of the corporation shall include, without
limitation, situations where such person is serving at the request of the
corporation as, respectively, a director, executive officer, officer, employee,
trustee or agent of another corporation, partnership, joint venture, trust or
other enterprise.

                  (5) References to "other enterprises" shall include employee
benefit plans; references to "fines" shall include any excise taxes assessed on
a person with respect to an employee benefit plan; and references to "serving at
the request of the corporation" shall include any service as a director,
officer, employee or agent of the corporation which imposes duties on, or
involves services by, such director, officer, employee, or agent with respect to
an employee benefit plan, its participants, or beneficiaries; and a person who
acted in good faith and in a manner such person reasonably believed to be in the
interest of the participants and beneficiaries of an employee benefit plan shall
be deemed to have acted in a manner "not opposed to the best interests of the
corporation" as referred to in this Section 43.

                                   ARTICLE XII

                                     NOTICES

      SECTION 44. NOTICES.

            (a) NOTICE TO STOCKHOLDERS. Written notice to stockholders of
stockholder meetings shall be given as provided in Section 7 herein. Without
limiting the manner by which notice may otherwise be given effectively to
stockholders under any agreement or contract with such stockholder, and except
as otherwise required by law, written notice to stockholders for purposes other
than stockholder meetings may be sent by U.S. mail or nationally recognized

                                      20.



overnight courier, or by facsimile, telegraph or telex or by electronic mail or
other electronic means.

            (b) NOTICE TO DIRECTORS. Any notice required to be given to any
director may be given by the method stated in subsection (a), as otherwise
provided in these Amended and Restated Bylaws, or by overnight delivery service,
facsimile, telex or telegram, except that such notice other than one which is
delivered personally shall be sent to such address as such director shall have
filed in writing with the Secretary, or, in the absence of such filing, to the
last known post office address of such director.

            (c) AFFIDAVIT OF MAILING. An affidavit of mailing, executed by a
duly authorized and competent employee of the corporation or its transfer agent
appointed with respect to the class of stock affected, or other agent,
specifying the name and address or the names and addresses of the stockholder or
stockholders, or director or directors, to whom any such notice or notices was
or were given, and the time and method of giving the same, shall in the absence
of fraud, be prima facie evidence of the facts therein contained.

            (d) METHODS OF NOTICE. It shall not be necessary that the same
method of giving notice be employed in respect of all recipients of notice, but
one permissible method may be employed in respect of any one or more, and any
other permissible method or methods may be employed in respect of any other or
others.

            (e) NOTICE TO PERSON WITH WHOM COMMUNICATION IS UNLAWFUL. Whenever
notice is required to be given, under any provision of law or of the Amended and
Restated Certificate of Incorporation or Amended and Restated Bylaws of the
corporation, to any person with whom communication is unlawful, the giving of
such notice to such person shall not be required and there shall be no duty to
apply to any governmental authority or agency for a license or permit to give
such notice to such person. Any action or meeting which shall be taken or held
without notice to any such person with whom communication is unlawful shall have
the same force and effect as if such notice had been duly given. In the event
that the action taken by the corporation is such as to require the filing of a
certificate under any provision of the DGCL, the certificate shall state, if
such is the fact and if notice is required, that notice was given to all persons
entitled to receive notice except such persons with whom communication is
unlawful.

            (f) NOTICE TO STOCKHOLDERS SHARING AN ADDRESS. Except as otherwise
prohibited under the DGCL, any notice given under the provisions of the DGCL,
the Amended and Restated Certificate of Incorporation or the Amended and
Restated Bylaws shall be effective if given by a single written notice to
stockholders who share an address if consented to by the stockholders at that
address to whom such notice is given. Such consent shall have been deemed to
have been given if such stockholder fails to object in writing to the
corporation within 60 days of having been given notice by the corporation of its
intention to send the single notice. Any consent shall be revocable by the
stockholder by written notice to the corporation.

                                      21.



                                  ARTICLE XIII

                                   AMENDMENTS

      SECTION 45. BYLAW AMENDMENTS. Subject to Section 43(h), the Board of
Directors is expressly empowered to adopt, amend or repeal the Bylaws of the
corporation. Any adoption, amendment or repeal of the Bylaws of the corporation
by the Board of Directors shall require the approval of a majority of the Board
of Directors. The stockholders shall also have power to adopt, amend or repeal
the Bylaws of the corporation; provided, however, that, in addition to any vote
of the holders of any class or series of stock of the corporation required by
law or by the Amended and Restated Certificate of Incorporation, the affirmative
vote of the holders of at least 66 2/3% of the voting power of all of the
then-outstanding shares of the capital stock of the corporation entitled to vote
generally in the election of directors, voting together as a single class, shall
be required to adopt, amend or repeal any provision of the Bylaws of the
corporation.

                                   ARTICLE XIV

                         LOANS TO OFFICERS OR EMPLOYEES

      SECTION 46. LOANS TO OFFICERS OR EMPLOYEES. Except as otherwise prohibited
by applicable law, the corporation may lend money to, or guarantee any
obligation of, or otherwise assist any officer or other employee of the
corporation or of its subsidiaries, including any officer or employee who is a
director of the corporation or its subsidiaries, whenever, in the judgment of
the Board of Directors, such loan, guarantee or assistance may reasonably be
expected to benefit the corporation. The loan, guarantee or other assistance may
be with or without interest and may be unsecured, or secured in such manner as
the Board of Directors shall approve, including, without limitation, a pledge of
shares of stock of the corporation. Nothing in these Amended and Restated Bylaws
shall be deemed to deny, limit or restrict the powers of guaranty or warranty of
the corporation at common law or under any statute.

                                      22.