**EXHIBIT 10.11.7**SUBLEASE AGREEMENT     This SUBLEASE AGREEMENT (“Sublease”) is made and entered into as of the 28th day of February,2006 by and between GEOMET TECHNOLOGIES, LLC., a Maryland limited liability company (“Sublandlord”)and IOMAI CORPORATION, a Delaware corporation (“Subtenant”).     WHEREAS, Alexandria Real Estate Equities, Inc (“Landlord”), and Sublandlord entered into alease dated January 15, 2002 (“Master Lease”) whereby Landlord leased to Sublandlord certainspace(“Master Premises”) of the building located at 20 Firstfield Road, Gaithersburg, MD (the“Building”), as more particularly described in the Master Lease, upon the terms and conditionscontained therein. A copy of the Master Lease is attached hereto as Exhibit A and made a parthereof.     WHEREAS, Sublandlord and Subtenant wish to enter into a sublease of that portion of the MasterPremises shown cross-hatched in black on the demising plan annexed hereto as Exhibit C and made apart hereof (“Sublease Premises”) on the terms and conditions hereafter set forth.     NOW, THEREFORE, in consideration of the mutual covenants herein contained, and for other goodand valuable consideration, the receipt and sufficiency of which are hereby acknowledged, theparties hereto mutually covenant and agree as follows:     1. Demise. Sublandlord hereby subleases to Subtenant, and Subtenant hereby hires andsubleases from Sublandlord, the Sublease Premises as shown on the attached Exhibit C (which theparties stipulate contain 5,572 rentable square feet), upon and subject to the terms, covenants andconditions hereinafter set forth.     2. Lease Term. The term of this Sublease (“Term”) shallcommence on the later of (x) one (1) business day after the date upon which the Subtenant hasreceived the “Consent” (as defined in Section 18 hereof), in a form reasonably acceptable toSubtenant, executed by the Landlord and Sublandlord or (y) upon completion of decontamination anddecommissioning in accordance with Section 16 (the “Sublease Commencement Date”), and expiring onFebruary 28, 2007 (“Sublease Expiration Date”). If, by March 15, 2006, (a) Subtenant has notreceived the Consent, executed by Sublandlord and Landlord, or (b) decommissioning anddecontamination is not completed in accordance with Section 16, then Subtenant may elect toterminate this Sublease upon written notice to Sublandlord. Within five (5) days of the SubleaseCommencement Date, Sublandlord and Subtenant agree to execute a certificate setting forth theSublease Commencement Date.     3. Use. The Sublease Premises shall be used and occupied by Subtenant for the usespermitted under and in compliance with the Master Lease and for no other purpose.     4.Rent.     (a) Base Rental. Beginning on the Sublease Commencement Date and thereafterduring the Term of this Sublease and ending on the Sublease Expiration Date, Subtenant shallpay to Sublandlord the following monthly installments of base rent (“Base Rental”):
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   $20.00 per square foot $9,286.67/month(full service)  The first monthly installment of Base Rental shall be paid by Subtenant upon the executionof this Sublease. Base Rental and additional rent (including without limitation, late fees)shall hereinafter be collectively referred to as “Rent.”     (b) Prorations. If the Sublease Commencement Date is not the first (1st) day of amonth, or if the Sublease Expiration Date is not the last day of a month, a proratedinstallment of monthly Base Rental based on a thirty (30) day month shall be paid for thefractional month during which the Term commenced or terminated.     (c) Payment of Rent. Except as otherwise specifically provided in this Sublease,Rent shall be payable in lawful money without demand, and without offset, counterclaim, orsetoff in monthly installments, in advance, on the first day of each and every month during theTerm of this Sublease. All of said Rent is to be paid to: GEOMET Technologies, L.L.C., 20251Century Blvd., Germantown, MD 20874 Attn: Paul Kendall, or at such other place or to such agentand at such place as Sublandlord may designate by notice to Subtenant. Any additional rentpayable on account of items that are not payable monthly by Sublandlord to Landlord under theMaster Lease is to be paid to Sublandlord as and when such items are payable by Sublandlord toLandlord under the Master Lease, unless a different time for payment is elsewhere statedherein. Upon written request therefor, Sublandlord agrees to provide Subtenant with copies ofany statements or invoices received by Sublandlord from Landlord pursuant to the terms of theMaster Lease.     (d) Late Charge. Subtenant shall pay to Sublandlord an administrative charge Oneand One Half Percent (1.5%) per month or the highest rate allowed by applicable law (“InterestRate”) on all past-due amounts of Rent payable hereunder, such charge to accrue from the dateupon which such amount was due until paid.     (e) The Base Rental includes electricity, water, sewer and all other utilities exceptfor gas, which is separately metered, and phone service. Subtenant shall arrange forjanitorial services for the Sublease Premises, at Subtenant’s cost and expense.     5. Security Deposit. Upon the Sublease Commencement Date, Subtenant shall depositwith Sublandlord the sum of Nine Thousand Two Hundred Eighty Six and 67/100 Dollars ($9,286.67)(the “Deposit”), which shall be held by Sublandlord as security for the full and faithfulperformance by Subtenant of its covenants and obligations under this Sublease. The Deposit is notan advance Rent deposit, an advance payment of any other kind or a measure of Sublandlord’s damagein case of Subtenant’s default. If Subtenant defaults in the full and timely performance of anyor all of Subtenant’s covenants and obligations set forth in this Sublease, then Sublandlord may,from time to time, without waiving any other remedy available to Sublandlord,use the Deposit, or any portion of it, to the extent necessary to cureor remedy the default or to compensate Sublandlord for all or a part of the damages sustained bySublandlord resulting from Subtenant’s default. Subtenant shall immediately pay to Sublandlordwithin five (5) days following demand, the amount so applied in order to restore
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the Deposit to its original amount, and Subtenant’s failure to immediately do so shall constitute a default underthis Sublease. If Subtenant is not in default with respect to the covenants and obligations setforth in this Sublease at the expiration or earlier termination of the Sublease, Sublandlord shallreturn the Deposit to Subtenant within thirty (30) days after the expiration or earliertermination of this Sublease. Sublandlord’s obligations with respect to the Deposit are those ofa debtor and not a trustee. Sublandlord shall not be required to maintain the Deposit separateand apart from Sublandlord’s general or other funds, and Sublandlord may commingle the Depositwith any of Sublandlord’s general or other funds. Subtenant shall not at any time be entitled tointerest on the Deposit.6. Parking. Subtenant shall have the right, during the Term ofthis Sublease, to use the parking facilities of the Building in accordance with the same terms andconditions of the Master Lease.     7. Incorporation of Terms of Master Lease. (a) This Sublease is subject andsubordinate to the Master Lease. Except as set forth in this Sublease, the terms of the MasterLease (excluding Sections 2 (Delivery; Acceptance of Premises; Commencement Date), 3 (Rent), 4(Base Rent Adjustments), 5 (Operating Expense Payments), 6 (Security Deposit), 22 (Assignmentand Subletting) and 39 (Right to Relocate) are incorporated herein by reference, and shall, asbetween Sublandlord and Subtenant (as if they were Landlord and Tenant, respectively, under theMaster Lease) constitute the terms of this Sublease except to the extent that they areinapplicable to, inconsistent with, or modified by, the terms of this Sublease. In the eventof any inconsistencies between the terms and provisions of the Master Lease and the terms andprovisions of this Sublease, the terms and provisions of this Sublease shall govern. Subtenantacknowledges that it has reviewed the Master Lease and is familiar with the terms andconditions thereof.     (b) For the purposes of incorporation herein, the terms of the Master Lease are subject tothe following additional modifications:     (i) In all provisions of the Master Lease (under the terms thereof and withoutregard to modifications thereof for purposes of incorporation into this Sublease)requiring the approval or consent of Landlord, Subtenant shall be required to obtainthe approval or consent of both Sublandlord and Landlord.     (ii) In all provisions of the Master Lease requiring Tenant to submit, exhibitto, supply or provide Landlord with evidence, certificates, or any other matter orthing, Subtenant shall be required to submit, exhibit to, supply or provide, as thecase may be, the same to both Landlord and Sublandlord. In anysuch instance, Sublandlord shall determine if such evidence, certificate orother matter or thing shall be satisfactory.     (iii) Sublandlord shall have no obligation to restore or rebuild any portion ofthe Sublease Premises after any destruction or taking by eminent domain.     8. Subtenant’s Obligations. (a) Subtenant covenants and agrees that all obligationsof Sublandlord under the Master Lease shall be done or performed by Subtenant with respect tothe Sublease Premises, except as otherwise provided by this Sublease, and
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Subtenant’s obligations shall run to Sublandlord and Landlord as Sublandlord may determine to beappropriate or be required by the respective interests of Sublandlord and Landlord. Subtenantagrees to indemnify Sublandlord, and hold it harmless, from and against any and all claims,damages, losses, expenses and liabilities (including reasonable attorneys’ fees) incurred as aresult of the non-performance, non-observance or non-payment of any of Sublandlord’sobligations under the Master Lease that, as a result of this Sublease, became an obligation ofSubtenant. If Subtenant makes any payment to Sublandlord pursuant to this indemnity, Subtenantshall be subrogated to the rights of Sublandlord concerning said payment. Subtenant shall notdo, nor permit to be done, any act or thing that is, or with notice or the passage of timewould be, a default under this Sublease or the Master Lease.     (b) Notwithstanding the foregoing, Subtenant shall have no obligation to (i) cure anydefault of Sublandlord under the Master Lease, (ii) perform any obligation of Sublandlord underthe Master Lease which arose prior to the Sublease Commencement Date and Sublandlord failed toperform, (iii) repair any damage to the Sublease Premises caused by Sublandlord, (iv) removeany alterations or additions installed within the Sublease Premises by Sublandlord, (v)indemnify Sublandlord or Landlord with respect to any negligence or willful misconduct ofSublandlord, its agents, invitees, employees or contractors or other subtenants of the Buildingother than Subtenant, or (vi) discharge any liens on the Sublease Premises or the Buildingwhich arise out of any work performed, or claimed to be performed, by or at the direction ofSublandlord.     (c) In no event shall Subtenant be liable for any violations (“Existing Violations”) ofapplicable law with respect to the Premises existing on the Sublease Commencement Date of theSublease.     9. Sublandlord’s Obligations. (a) Sublandlord agrees that Subtenant shallbe entitled to receive all services and repairs to be provided by Landlord to Sublandlord underthe Master Lease. Subtenant shall look solely to Landlord for all such services and shall not,under any circumstances, seek nor require Sublandlord to perform any of such services, norshall Subtenant make any claim upon Sublandlord for any damages that may arise by reason ofLandlord’s default under the Master Lease. Sublandlord agrees to use commercially reasonableefforts including to cause Landlord to provide the Sublease Premises with the services that areto be provided by Landlord to the Sublease Premises and the Building under the Master Lease. IfLandlord defaults in the performance or observance of any of Landlord’s obligations under theMaster Lease, Sublandlord shall perform such obligations to the extent that Sublandlord ispermitted under the Master Lease to or cause Landlord to perform such obligations as providedherein. If Landlord fails to provide to the Sublease Premises any of the services describedunder the Master Lease, and such failure or any other cause or circumstance (other thanSubtenant’s act or default) materially adversely interferes with Subtenant’s use and enjoymentof the Sublease Premises, then notwithstanding anything to the contrary herein or incorporatedby reference herein, Subtenant shall be entitled to an equitable adjustment of Base Rentaluntil such services are restored or other cause or circumstance rectified, whether by Landlordor Sublandlord as aforesaid. Any condition resulting from a default by Landlord shall notconstitute as between Sublandlord and Subtenant an eviction, actual or constructive, ofSubtenant, and no
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such default shall excuse Subtenant from the performance or observance of anyof its obligations to be performed or observed under this Sublease, or entitle Subtenant toreceive any reduction in or abatement of the Rent provided for in this Sublease. Infurtherance of the foregoing, Subtenant does hereby waive any cause of action and any right tobring any action against Sublandlord by reason of any act or omission of Landlord under theMaster Lease.     (b) Sublandlord covenants and agrees with Subtenant that Sublandlord will pay all fixedrent and additional rent payable by Sublandlord pursuant to the Master Lease to the extent thatfailure to perform the same would adversely affect Subtenant’s use or occupancy of the SubleasePremises. Sublandlord covenants and agrees that Sublandlord will not do anything which wouldconstitute a default (beyond any applicable grace or cure period under the Master Lease) underthe provisions of the Master Lease or omit to do anything Sublandlord is obligated to do underthe terms of this Sublease (beyond any applicable grace or cure period under the Master Lease)which omission would constitute a default under the Master Lease nor shall Sublandlordvoluntarily surrender or terminate the Master Lease except in accordance with the Master Leasein the event of a taking or casualty, nor shall it agree to modify or amend the Master Lease inany way that will reduce the rights or increase the obligations of Subtenant under thisSublease in any material respect.     (c) Sublandlord shall indemnify, defend and hold Subtenant harmless from and against allliability, costs, damages, claims, demands and expenses, including, without limitation,reasonable attorneys’ fees and costs, arising out of any termination of the Master Lease as aresult of a default by Sublandlord thereunder or any voluntary surrender of the Master Lease(except in accordance with the Master Lease in the event of a taking or casualty).     10. Default by Subtenant. In the event Subtenant shall be in default (beyond anyapplicable grace or cure period) of any covenant of, or shall fail to honor any obligation underthis Sublease, Sublandlord shall have available to it against Subtenant all of the remediesavailable (a) to Landlord under the Master Lease in the event of a similar default on the part ofSublandlord thereunder or (b) at law or in equity.     11. Right to Cure Sublandlord’s Default under the Master Lease. Sublandlord agreesthat it will (i) not amend the Master Lease in a way that adversely affects Subtenant’s rightsunder this Sublease and (ii) forward to Subtenant copies of any notices of default that it receivesfrom the Landlord. If Sublandlord shall fail to make any payment or perform any act required to bemade or performed by Sublandlord under the Master Lease, and such default is not cured bySublandlord within ten (10) business days after notice from Subtenant, then Subtenant shall havethe right, but not the obligation, without waiving or releasing Sublandlord from any obligationsthereunder, to cure such default directly with Prime Landlord in such manner and to such extent asSubtenant shall deem necessary. If Subtenant shall, in exercising any such right, incur anyreasonable costs and expenses (including, without limitation, reasonable attorney’s fees) inremedying such default, Subtenant shall be entitled to recover such sums upon demand fromSublandlord.
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     12. Sublandlord Representations. Sublandlord represents and warrants: (i) that it isthe holder of the interest of the “Tenant” under the Master Lease and said interest is not thesubject of any lien, assignment, sublease, or other hypothecation or pledge, (ii) that the MasterLease is in full force and effect unmodified, except as set forth above, and constitutes the entireagreement between the Landlord and Sublandlord in respect of the Sublease Premises, (iii) that nonotices of default have been served on Sublandlord under the Master Lease which have not beencured, (iv) to the best of Subtenant’s knowledge, neither Sublandlord nor Landlord is in defaultunder the Master Lease; (v) there are no financing statements outstanding with respect to theSublease Premises or any fixtures therein or improvements or alterations thereto under whichSublandlord is the debtor; (vi) that to the best of Sublandlord’s knowledge, there are no HazardousMaterials in on or about the Building, the Land or the Sublease Premises; and (vii) that, to thebest of Sublandlord’s knowledge, there are currently no uncured violations of any federal, state orlocal laws, regulations, codes, executive orders, guidelines or requirements affecting the SubleasePremises, the Land or the Building.     13. Quiet Enjoyment. So long as Subtenant pays all of the Rent due hereunder andperforms all of Subtenant’s other obligations hereunder, Sublandlord shall do nothing to affectSubtenant’s right to peaceably and quietly have, hold and enjoy the Sublease Premises.     14. Notices. Anything contained in any provision of this Sublease to the contrarynotwithstanding, Subtenant agrees, with respect to the Sublease Premises, to comply with andremedy any default in this Sublease or the Master Lease which is Subtenant’s obligation to cure,within the period allowed to Sublandlord under the Master Lease, even if such time period isshorter than the period otherwise allowed therein due to the fact that notice of default fromSublandlord to Subtenant is given after the corresponding notice of default from Landlord toSublandlord. Sublandlord agrees to forward to Subtenant, promptly upon receipt thereof bySublandlord, a copy of each notice of default received by Sublandlord in its capacity as Tenantunder the Master Lease. Subtenant agrees to forward to Sublandlord, promptly upon receiptthereof, copies of any notices received by Subtenant from Landlord or from any governmentalauthorities. All notices, demands and requests shall be in writing and shall be sent either byhand delivery or by a nationally recognized overnight courier service (e.g., Federal Express), ineither case return receipt requested, to the address of the appropriate party. Notices, demandsand requests so sent shall be deemed given when the same arereceived or upon refusal to accept delivery. Notices to Sublandlord shall be sent to the attention of:GEOMET Technologies, L.L.C.