Document:

<PAGE>

                                                                   Exhibit 10.63

                                    SUBLEASE

     THIS SUBLEASE ("Sublease"), dated June 15, 2001 for reference purposes
only, is entered into by and between Applera Corporation, a Delaware corporation
("Sublandlord"), and Deltagen Inc., a Delaware corporation ("Subtenant").

                                    RECITALS

     A. Sublandlord leases those certain premises situated in Alameda,
California (the "Premises") situated in the building commonly known as 1501
Harbor Bay Parkway (the "Building"), from 1501 Harbor Bay, L.P., a limited
general partnership ("Master Landlord") in accordance with a Lease dated as of
February 13, 2001 (the "Master Lease"). A true and correct copy of the Master
Lease is attached hereto as Exhibit "A." Capitalized terms used but not defined
herein have the same meanings as they have in the Master Lease.

     B. Sublandlord desires to sublease the Premises to Subtenant, and Subtenant
desires to sublease the Premises from Sublandlord, on the terms and provisions
hereof.

     NOW, THEREFORE, in consideration of the mutual covenants and conditions
contained herein, Sublandlord and Subtenant covenant and agree as follows:

                                    AGREEMENT

     1. Subleased Premises. On and subject to the terms and conditions below,
Sublandlord hereby subleases to Subtenant, and Subtenant hereby subleases from
Sublandlord, the Premises. The Premises contain approximately Thirty-Two
Thousand (32,000) rentable square feet.

     2. Term.

        (a) This Sublease shall commence on June 15, 2001 (the "Commencement
Date") and shall expire at 11:59 p.m. on February 28, 2006 unless sooner
terminated pursuant to any provision hereof. If for any reason Sublandlord
cannot deliver possession of the Premises to Subtenant on the Commencement Date,
Sublandlord shall not be subject to any liability therefor, nor shall such
failure affect the validity of this Sublease or the obligations of Subtenant
hereunder or extend the term hereof; but in such case Subtenant shall not be
obligated to pay Rent (as hereinafter defined) until possession of the Premises
is tendered to Subtenant.

     3. Rent

        a. Base Rent. Commencing on the Commencement Date and continuing
throughout the term of this Sublease, Subtenant shall pay rent ("Base Rent") to
Sublandlord in the following amounts for the period(s) as described:

                                      -1-

<PAGE>

                                                                 Monthly Base
                                                                 Rent

            Commencement Date to February 28, 2002               $70,400.00
            March 1, 2002 to February 28, 2003                   $72,416.00
            March 1, 2003 to February 28, 2004                   $74,492.48
            March 1, 2004 to February 28, 2005                   $76,631.25
            March 1, 2005 to February 28, 2006                   $78,834.19

        (b) Additional Rent. Commencing on the Commencement Date and continuing
throughout the term of this Sublease, Subtenant will also pay additional rent
"(Additional Rent") in the amount equal to Subtenant's Share of all costs
payable by Sublandlord pursuant to the Master Lease for insurance premiums,
taxes, assessments, operating charges, utilities, management fees, maintenance
charges, common area expenses and any other charges, costs and expenses which
arise or may be contemplated under the Master Lease with regard to the Premises,
the Building or the project of which either is a part (collectively, "Operating
Expenses"). Notwithstanding the foregoing, Subtenant shall not be obligated to
pay any amount due under the Master Lease which represents a penalty, late
charge or interest on any late payment by Sublandlord of "Base Rent" or other
sums under the Master Lease. For purposes of this Sublease, Subtenant's Share
shall be equal to One Hundred percent (100%). Base Rent, Additional Rent and all
other amounts payable by Subtenant hereunder are referred to collectively as
"Rent."

        (c) Payment. Base Rent shall be payable to Sublandlord in lawful money
of the United States, in advance, without prior notice, demand, or offset, on or
before the first day of each calendar month during the term hereof. Additional
Rent shall be payable monthly, within thirty (30) days of invoice by
Sublandlord. All Rent shall be paid to Sublandlord at the address specified for
notice to Sublandlord in Section 16 below. If the Commencement Date does not
fall on the first day of a calendar month, Rent for the first month shall be
prorated on a daily basis based upon a thirty-day calendar month.

        (d) Deposits. Upon execution of this Sublease, Subtenant shall pay to
Sublandlord the sum Two Hundred Eighty One Thousand Six Hundred Dollars
($281,600.) constituting payment in advance of the first month's Base Rent,
together with the Security Deposit, as set forth in Section 5 below.

        (e) Late Charges. Subtenant recognizes that late payment of any Rent
will result in administrative expenses to Sublandlord, the extent of which
additional expenses are extremely difficult and economically impractical to
ascertain. Subtenant therefore agrees that if any Rent shall remain unpaid five
(5) days after such amounts are due, the amount of such overdue Rent payment
shall be increased by a late charge to be paid to Sublandlord by Subtenant in an
amount equal to five percent (5%) of the amount of the delinquent Rent.

        (f) Abatement. In the event of any casualty or condemnation affecting
the Premises, Rent payable by Subtenant shall be abated hereunder, but only to
the extent that rent under the Master Lease is abated, and Subtenant waives any
right to terminate the

                                      -2-

<PAGE>

Sublease in connection with such casualty or condemnation except to the extent
the Master Lease is also terminated as to the Premises or any portion thereof.

     4. Utilities. Subtenant shall pay for all water, gas, heat, light, power,
telephone, sewer and other utilities supplied to the Premises ("Utilities"),
together with any fees, surcharges and taxes thereon. In the event that
Utilities to the Premises are not separately metered, Subtenant shall reimburse
Sublandlord for Subtenant's Share of the cost of Utilities furnished to the
Premises.

     5. Security Deposit. Upon execution of this Sublease, Subtenant shall
deliver to Sublandlord a letter of credit in the amount of Two Hundred Eleven
Thousand Two Hundred Dollars ($211,200) as a security deposit ("Security
Deposit") and Subtenant shall maintain said letter of credit (or replacements
thereof) in effect during the term of this Sublease. If Subtenant fails to pay
Rent or other charges when due under this Sublease, or fails to perform any of
its other obligations hereunder (after notice of such failure and failure to
cure such failure, if applicable), Sublandlord may draw under the letter of
credit a sum reasonably necessary for the payment of any Rent or other amount
then due hereunder and unpaid, for the payment of any other sum for which
Sublandlord may become obligated by reason of Subtenant's default or breach, or
for any loss or damage sustained by Sublandlord as a result of Subtenant's
default or breach. In addition, in the event that the Master Landlord requires
Sublandlord to pay rent in advance as the result of Subtenant's default in the
payment of Rent hereunder, Sublandlord may require Subtenant to pay Rent on a
quarterly basis in advance. If Sublandlord so draws on the letter of credit,
Subtenant shall amend the letter of credit (or deliver cash to Sublandlord) to
restore the Security Deposit to the full original amount within ten (10) days
after Sublandlord's written demand. Sublandlord shall not be required to keep
the Security Deposit separate from its general accounts, and shall have no
obligation or liability for payment of interest on the Security Deposit. The
Security Deposit shall be returned to Subtenant within thirty (30) days of the
expiration or earlier termination of this Sublease, provided Subtenant has
vacated the Premises.

     6. Assignment and Subletting. Subtenant may not assign, sublet, transfer,
pledge, hypothecate or otherwise encumber the Premises, in whole or in part, or
permit the use or occupancy of the Premises by anyone other than Subtenant,
unless Subtenant has obtained Sublandlord's prior written consent thereto (which
consent shall not be unreasonably withheld or delayed) and the consent of Master
Landlord, if required pursuant to the Master Lease, and which (if required)
would be governed by the terms of the Master Lease. Regardless of Sublandlord's
consent, no subletting or assignment shall release Subtenant of its obligations
hereunder. Any rent or other consideration payable to Subtenant in connection
with any permitted assignment or subleasing in excess of the Rent payable to
Sublandlord hereunder ("Bonus Rent") shall be divided equally between
Sublandlord and Subtenant after first deducting therefrom the reasonable
out-of-pocket costs to Subtenant for all costs incurred by Subtenant in
effectuating such sublease or assignment, including brokerage fees, marketing
expenses, legal fees, free rent, and tenant improvement expenses or allowances.

                                      -3-

<PAGE>

     7. Condition of Subleased Premises. Subtenant has used due diligence in
inspecting the Premises and agrees to accept the Premises in "as-is" condition
and with all faults as of the date of Subtenant's execution of this Sublease,
without any representation or warranty of any kind or nature whatsoever, or any
obligation on the part of Sublandlord to modify, improve or otherwise prepare
the Premises for Subtenant's occupancy. By entry hereunder, Subtenant accepts
the Premises in their present condition and without representation or warranty
of any kind by Sublandlord. Subtenant hereby expressly waives the provisions of
subsection 1 of Section 1932 and Sections 1941 and 1942 of the California Civil
Code and all rights to make repairs at the expense of Sublandlord as provided in
Section 1942 of said Civil Code. Upon the expiration or earlier termination of
this Sublease, Subtenant shall return the Premises in the same condition as
received, reasonable wear and tear excepted. The current condition of certain
portions of the Premises is described in Exhibit C attached hereto.

     8. Use. Subtenant may use the Premises only for the purposes as allowed in
the Master Lease, and no other purpose. Subtenant shall not use or permit the
use of the Premises in a manner that will violate the provisions of the Master
Lease.

     9. Incorporation of Sublease.

        (a) All of the terms and provisions of the Master Lease, except as
provided in subsection (b) below, are incorporated into and made a part of this
Sublease and the rights and obligations of the parties under the Master Lease
are hereby imposed upon the parties hereto with respect to the Premises,
Sublandlord being substituted for the "Landlord" in the Master Lease, and
Subtenant being substituted for the "Tenant" in the Master Lease. It is further
understood that where reference is made in the Master Lease to the "Premises,"
the same shall mean the Premises as defined herein; where reference is made to
the "Commencement Date," the same shall mean the Commencement Date as defined
herein; and where reference is made to "this Lease," the same shall mean this
Sublease.

        (b) The following Sections of the Master Lease are not incorporated
herein: 2, 3, 9, 12, 14, 20, 21, 24, 27.

        (c) Subtenant hereby assumes and agrees to perform for Sublandlord's
benefit, during the term of this Sublease, all of Sublandlord's obligations with
respect to the Premises under the provisions of the Master Lease incorporated
herein (and modified hereby), except as otherwise provided herein. Subtenant
shall not commit or permit to be committed any act or omission by Subtenant or
its agents, employees, contractors or invitees which violates any term or
condition of the Master Lease. Sublandlord will cooperate with Subtenant in
enforcing the Master Lease against Master Landlord in order to obtain for
Subtenant the services and other benefits to be provided by Master Landlord to
the Premises under the Master Lease; however, the foregoing shall not relieve
Sublandlord of its obligations under this Sublease. Except as otherwise provided
herein, this Sublease shall be subject and subordinate to all of the terms of
the Master Lease. It is the intention of Sublandlord and Subtenant that, in the
event of any inconsistency or contradiction between

                                      -4-

<PAGE>

the Sublease and the Master Lease, the terms of this Sublease shall control as
between Sublandlord and Subtenant.

     10. Insurance. Subtenant shall be responsible for insuring its personal
property, tenant improvements and equipment in the amount of their full
replacement value and shall maintain comprehensive general liability insurance
in the amount of $2,000,000 per occurrence respecting the use and occupancy of
the Premises. Such insurance shall insure the performance by Subtenant of its
indemnification obligations hereunder and shall name Master Landlord and
Sublandlord as additional insureds. All insurance required under this Sublease
shall contain an endorsement requiring thirty (30) days written notice from the
insurance company to Subtenant and Sublandlord before cancellation. Subtenant
shall provide Sublandlord with certificates of insurance evidencing such
coverage prior to the commencement of this Sublease.

     11. Default. In addition to defaults contained in the Master Lease, failure
of Subtenant to make any payment of Rent within five (5) business days after
Subtenant's receipt of written notice of delinquency from Sublandlord shall
constitute an event of default hereunder.

     12. Notices. The addresses specified in the Master Lease for receipt of
notices to each of the parties are deleted and replaced with the following:

        To Sublandlord:           Applied Biosystems
                                  850 Lincoln Centre Drive
                                  Foster City, California 94404
                                  Attn: Director of Real Estate

        With copy to:             Applera Corporation
                                  761 Main Avenue
                                  Norwalk, Connecticut 06859
                                  Attn: Charles J. Heinzer, Esq.

        To Subtenant at:          Deltagen Inc.
                                  1003 Hamilton Avenue
                                  Menlo Park, California 94025

     13. Early Termination of Sublease. If, without the fault of Sublandlord,
the Master Lease should terminate prior to the expiration of this Sublease,
Sublandlord shall have no liability to Subtenant on account of such termination.
To the extent that the Master Lease grants Sublandlord any discretionary right
to terminate the Sublease, whether due to casualty, condemnation, or otherwise,
Sublandlord shall be entitled to exercise such right in its sole discretion.

     14. Consent of Master Landlord and Sublandlord. If Subtenant desires to
take any action which requires the consent or approval of Sublandlord pursuant
to the terms of this

                                      -5-

<PAGE>

Sublease, prior to taking such action, including, without limitation, making any
alterations, then, notwithstanding anything to the contrary herein, (a)
Sublandlord shall have the same rights of approval or disapproval as Master
Landlord has under the Master Lease, and (b) Subtenant shall not take any such
action until it obtains the consent of Sublandlord and Master Landlord, as may
be required under this Sublease and/or the Master Lease, which (if required)
shall be governed by the applicable terms of the Master Lease.

     15. Brokers. Each party hereto represents and warrants that it has dealt
with Technology Commercial, Inc. and BT ("Broker"), in connection with this
Sublease and the transactions contemplated herein. Sublandlord shall pay Broker
commission or fee that may be payable as a result of this Sublease. Each party
shall indemnify, protect, defend and hold the other party harmless from all
costs and expenses (including reasonable attorneys' fees) arising from or
relating from the actions in connection with the commission or fee.

     16. No Third Party Rights. The benefit of the provisions of this Sublease
is expressly limited to Sublandlord and Subtenant and their respective permitted
successors and assigns. Under no circumstances will any third party be construed
to have any rights as a third party beneficiary with respect to any of said
provisions.

     17. Condition Precedent. The effectiveness of this Sublease is conditioned
upon receipt by the parties of the written consent of the Master Landlord on or
prior to the Commencement Date.

     18. Specialized Improvements. Subject to the Master Lease, at the
termination of the Sublease, Subtenant may remove from the Sublease Premises any
specialized Subtenant improvements installed by and paid for by Subtenant. Such
removal shall be contingent upon Subtenant repairing any damage resulting from
such removal. Any removal of improvements by Subtenant shall not impair the
function or use of the Premises' infrastructure or utility. Any improvements
shall be submitted to Sublandlord for review and approval, with such approval
shall not be unreasonably withheld. Subtenant shall be responsible for any cost
incurred by Sublandlord for review and approval.

     19. Computer Room. Subtenant will allow Sublandlord to maintain exclusive
occupancy of rooms 207/208 rent free to December 31, 2001. The Subtenant will
have access to rooms 207/208 only in the presence of the Sublandlord and shall
make representatives of Sublandlord available for that purpose. This access
would be primarily for the installation and maintenance of equipment necessary
to support data networking within the building. The Sublandlord will provide
Subtenant with contact phone numbers necessary to obtain 24/7 emergency access
to room 207/208.

     20. Fixtures & Equipment. Subtenant shall submit payment of One Hundred
Fifteen Thousand Seven Hundred Fifty Dollars ($115,750) for fixtures and
equipment as described in Exhibit "B".

     21. Counterparts. This Sublease may be signed in two or more counterparts,
each of which shall be deemed an original and all of which shall constitute one
agreement.

                                      -6-

<PAGE>

     IN WITNESS WHEREOF, the parties have executed this Sublease on the dates
indicated below

SUBLANDLORD:                              SUBTENANT:

APPLERA CORPORATION,                      DELTAGEN INC.,
a Delaware corporation                    a Delaware Corporation

By:_________________________________      By:___________________________________
Name:_______________________________      Name:_________________________________
Title:______________________________      Title:________________________________

                                      -7-

<PAGE>

                               CONSENT TO SUBLEASE
                             1501 Harbor Bay Parkway

1501 Harbor Bay L.P., the landlord ("Master Landlord") under the Lease ("Master
Lease") dated February 13, 2001 between Master Landlord and Sublandlord, and
owner of the Premises, hereby consents to the Sublease between Applera
Corporation and Deltagen, Inc. dated June 15, 2001 attached hereto, and all of
the terms and conditions contained therein.

1501 HARBOR BAY LP

By:_____________________________
Title:__________________________
Date:___________________________

                                      -8-<PAGE>

                                                                 Exhibit 10.63.1

                              AMENDMENT TO SUBLEASE

     Applera Corporation ("Sublandlord"), as sublandlord under that certain
Sublease dated June 15, 2001 with Deltagen Inc. ("Subtenant") and Subtenant
hereby agree that notwithstanding Section 3(f) of the Sublease, in the event of
a casualty or condemnation affecting the subleased premises, Sublandlord shall
upon written request of Subtenant, terminate the Master Lease (as defined in the
Sublease) in accordance with the terms of the Master Lease.

     This Amendment shall be binding upon Subtenant, Sublandlord and their
successors and assigns. This Amendment shall not be effective unless approved by
Ceretek, LLC and 1501 Harbor Bay L.P. This Amendment by be executed in
counterparts; telecopies of this Amendment may be executed; and executed
telecopies may be delivered by telecopy.

June 20, 2001

DELTAGEN INC.                          APPLERA CORPORATION

By:_______________________________     By: _____________________________________

Name: ____________________________     Name:____________________________________

Title: ___________________________     Title: __________________________________

APPROVED BY SUB-SUBTENANT:

CERETEK, LLC

By: _______________________________

Name: _____________________________

Title: ____________________________

APPROVED BY MASTER LANDLORD:

1501 HARBOR BAY, L.P.

       By:  Acamar (1501), Inc.
            its general partner

            By: _____________________________
                James I. Hunter, President

                                       -1-

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00050-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00050-of-00352.parquet"}]]