TERMS SHEET This terms sheet contains selected information for quick reference only. You should read this Supplement, particularly "Risk Factors," and each of the other documents listed under "Available Information." Sponsor: Deutsche Bank Securities Inc. Trustee: Wells Fargo Bank, N.A. Tax Administrator: The Trustee Closing Date: July 30, 2007 Distribution Date: The 20th day of each month or, if the 20th day is not a Business Day, the first Business Day thereafter, commencing in August 2007. Trust Assets: Trust Asset Type Certificate Rate Original Term To Maturity (in years) Ginnie Mae II 6.0% 30 Assumed Characteristics of the Mortgage Loans Underlying the Trust Assets1: Principal Balance2 Weighted Average Remaining Term to Maturity (in months) Weighted Average Loan Age (in months) Weighted Average Mortgage Rate3 $121,653,365 357 3 6.433% 13,109,301 348 10 6.550% 54,871,002 324 32 6.590% $189,633,668 1As of July 1, 2007. 2Does not include the Trust Assets that will be added to pay the Trustee Fee. 3The Mortgage Loans underlying the Trust Assets may bear interest at rates ranging from 0.25% to 1.50% per annum above the related Certificate Rate. The actual remaining terms to maturity, loan ages and Mortgage Rates of many of the Mortgage Loans will differ from the weighted averages shown above, perhaps significantly. See "The Trust Assets – The Mortgage Loans" in this Supplement. Issuance of Securities: The Securities, other than the Residual Securities, will initially be issued in book-entry form through the book-entry system of the U.S. Federal Reserve Banks (the "Fedwire  Book-Entry  System").  The  Residual  Securities  will  be  issued  in  fully  registered, certificated form. See "Description of the Securities – Form of Securities" in this Supplement. Modification  and  Exchange:  If  you  own  exchangeable  Securities  you  will  be  able,  upon notice and payment of an exchange fee, to exchange them for a proportionate interest in the related Securities shown on Schedule I to this Supplement. See "Description of the Securi- ties – Modification and Exchange" in this Supplement. Increased Minimum Denomination Classes: Each Class that constitutes an Inverse Floating Rate Class. See "Description of the Securities – Form of Securities" in this Supplement. B-3