ASSIGNMENT AND ASSUMPTION OF LEASE
THIS ASSIGNMENT AND ASSUMPTION OF LEASE (this “ Assignment ”) is entered into as of the 28 day of October,
2003 (the “ Effective Date ”), by NUVELO, INC., a Nevada corporation, successor by merger to Variagenics, Inc., a Delaware
corporation (“ Assignor ”), and IDENIX PHARMACEUTICALS, INC., a Delaware corporation (“ Assignee ”).
A. BHX, LLC, a Massachusetts limited liability company, as Trustee of 205 Broadway Realty Trust (“ Landlord ”), and
Assignor are parties to a Lease dated May 15, 1998 (the “ Lease ”), pursuant to which Landlord leased to Assignor, and
Assignor leased from Landlord, the entire Building owned by Landlord located at and known as 205 Broadway, Cambridge,
Massachusetts, now known as 60 Hampshire Street, Cambridge, Massachusetts. All capitalized terms used in this Assignment
which are defined in the Lease and not otherwise defined in this Assignment shall have the meanings given in the Lease.
B. Assignor desires to assign its right, title and interest in and to the Lease to Assignee, and Assignee desires to accept
such assignment and to assume the obligations of Assignor under the Lease on and subject to the terms and conditions set
Statement of Assignment and Assumption
In consideration of the mutual covenants and agreements set forth herein, Assignor and Assignee hereby agree as
l. Assignment and Assumption . Assignor assigns all of Assignor’s right, title and interest in and to the Lease to
Assignee, on and subject to the terms and conditions set forth herein. Assignee accepts such assignment and assumes the
obligations of Assignor under the Lease, on and subject to the terms and conditions set forth herein.
2. Delivery of Premises and FF&E . Assignor shall deliver possession of the Premises to Assignee on the Effective Date,
decommissioned in accordance with the decommissioning requirements set forth in Exhibit A hereto, and with the furniture,