MORTGAGE LOAN PURCHASE AGREEMENT

THIS AMENDMENT NUMBER ONE (this “Amendment Number One”) is made this 19 ^th day of December, 2006, by and between ACE SECURITIES CORP. (the “Purchaser”) and DB STRUCTURED PRODUCTS, INC. (the “Seller”) , to the Mortgage Loan Purchase Agreement, dated as of October 30, 2006, by and between the Purchaser and the Seller (the “Agreement”) .

WHEREAS, the Purchaser and the Seller desire to amend the Agreement, subject to the terms hereof, to modify the Agreement as specified herein; and

WHEREAS, the Purchaser and the Seller each have agreed to execute and deliver this Amendment Number One on the terms and conditions set forth herein.

NOW THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, and of the mutual covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1.   Defined Terms . For purposes of this Amendment Number One, unless the context clearly requires otherwise, all capitalized terms which are used but not otherwise defined herein shall have the respective meanings assigned to such terms in the Agreement.

SECTION 2.   The Amendments .

(a)    Section 6 of the Agreement is hereby amended by: (i) deleting the word “and” at the end of subpart (lxxiii) thereof and (ii) inserting the following new subpart at the end of subpart (lxxiv) thereof:

; and (lxxv) With respect to any Group I Mortgage Loan for which the date of the related mortgage note is more than 1 year before the Closing Date,

(i)   The Seller represents that it currently operates or actively participates in an on-going and active program or business (A) to originate mortgages, and/or (B) to make periodic purchases of mortgage loans from originators or other sellers, and/or (C) to issue and/or purchase securities or bonds supported by the mortgages, with a portion of the proceeds generated by such program or business being used to purchase or orig