Exhibit 99.1
Execution Copy
MORTGAGE LOAN PURCHASE AGREEMENT
--------------------------------
This Mortgage Loan Purchase Agreement (the "Agreement"), dated
as
of February 1, 2007, is between Mortgage Asset Securitization
Transactions,
Inc., a Delaware corporation (the "Company"), and UBS Real Estate
Securities
Inc., a Delaware corporation (the "Seller" or "UBSRES").
The Company and the Seller hereby recite and agree as follows:
1. Defined Terms. Terms used without definition herein shall
have
the respective meanings assigned to them in the Pooling and
Servicing
Agreement, dated as of February 1, 2007 (the "Pooling and
Servicing
Agreement"), among the Company, Wells Fargo Bank, National
Association, as
Master Servicer ("Master Servicer") and as trust administrator
("Trust
Administrator"), The Bank of New York, as Trustee (the "Trustee"),
and UBSRES,
as Transferor, relating to the issuance of the Company's TBW
Mortgage-Backed
Trust 2007-1 Mortgage Pass-Through Certificates, Series 2007-1
(the
"Certificates") or, if not defined therein, in the Underwriting
Agreement,
dated February 26, 2007 (the "Underwriting Agreement"), between the
Company,
UBS Securities LLC ("UBSS") and Credit Suisse Securities (USA)
LLC.
2. Purchase of Mortgage Loans. The Seller hereby sells,
transfers,
assigns and conveys, and the Company hereby purchases, the mortgage
loans (the
"Mortgage Loans"), listed in Exhibit I.
3. Purchase Price; Purchase and Sale. The purchase price for
the
Mortgage Loans shall be payable by the Company to the Seller on the
Closing
Date either (i) by appropriate notation of an inter company
transfer between
affiliates of UBS or (ii) in immediately available Federal funds
wired to such
bank as may be designated by the Seller.
Upon payment of the purchase price by the Company, the Seller
shall be deemed to have transferred, assigned, set over and
otherwise conveyed
to the Company all the right, title and interest of the Seller in
and to the
Mortgage Loans as of the Cut-Off Date, including all interest and
principal
due on the Mortgage Loans after the Cut-Off Date (including
scheduled payments
of principal and interest due after the Cut-Off Date but received
by the
Seller on or before the Cut-Off Date, but not including payments of
principal
and interest due on the Mortgage Loans on or before the Cut-Off
Date),
together with all of the Seller's right, title and interest in and
to the
proceeds of any related title, hazard, primary mortgage or other
insurance
policies together with all rights with respect to the related
Mortgage Loans,
and only with respect to the Mortgage Loans, under the Servicing
Agreement
(other than those rights under the Servicing Agreem
