Exhibit  A  to  this  Supplement  for  certain  information  regarding  the  characteristics  of  the Mortgage Loans included in the related Underlying Trusts. 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 a Principal Only, Interest  Only  or  Inverse  Floating  Rate  Class.  See  "Description  of  the  Securities – Form  of Securities" in this Supplement. Interest Rates: The Interest Rates for the Fixed Rate Classes are shown on the front cover of this Supplement or on Schedule I to this Supplement. The Floating Rate and Inverse Floating Rate Classes will bear interest at per annum rates based on one-month LIBOR (hereinafter referred to as "LIBOR") as follows: Class Interest Rate Formula(1) Initial Interest Rate(2) Minimum Rate Maximum Rate Delay (in days) LIBOR for Minimum Interest Rate BF (LIBOR × 2850.00) - 18525.00% 0.0000% 0.00% 28.50000000% 19 6.50% BI (LIBOR × 2850.00) - 18525.00% 0.0000% 0.00% 28.50000000% 19 6.50% BS 4947.60% - (LIBOR × 760.00) 7.6000% 0.00% 7.60000000% 19 6.51% CF (LIBOR × 2717.64705882) - 17664.70588233% 0.0000% 0.00% 27.17647059% 19 6.50% CI (LIBOR × 2717.64705882) - 17664.70588233% 0.0000% 0.00% 27.17647059% 19 6.50% CS 5012.70% - (LIBOR × 770.00) 7.7000% 0.00% 7.70000000% 19 6.51% FA LIBOR + 0.27% 5.5900% 0.27% 7.00000000% 0 0.00% FB LIBOR + 0.70% 6.0200% 0.70% 7.00000000% 19 0.00% FE (LIBOR × 24.00) - 216.00% 0.0000% 0.00% 6.00000000% 19 9.00% NA 14.20% - (LIBOR × 2.00) 3.5600% 0.00% 14.20000000% 0 7.10% NB 15.975% - (LIBOR × 2.25) 4.0050% 0.00% 15.97500000% 0 7.10% NC 17.75% - (LIBOR × 2.50) 4.4500% 0.00% 17.75000000% 0 7.10% NF LIBOR + 0.15% 5.4700% 0.15% 7.25000000% 0 0.00% NG 19.525% - (LIBOR × 2.75) 4.8950% 0.00% 19.52500000% 0 7.10% NH 21.30% - (LIBOR × 3.00) 5.3400% 0.00% 21.30000000% 0 7.10% NJ 23.075% - (LIBOR × 3.25) 5.7850% 0.00% 23.07500000% 0 7.10% NK 24.85% - (LIBOR × 3.50) 6.2300% 0.00% 24.85000000% 0 7.10% NL 28.40% - (LIBOR × 4.00) 7.1200% 0.00% 28.40000000% 0 7.10% NP 30.175% - (LIBOR × 4.25) 7.5650% 0.00% 30.17500000% 0 7.10% NS 26.625% - (LIBOR × 3.75) 6.6750% 0.00% 26.62500000% 0 7.10% NT 31.95% - (LIBOR × 4.50) 8.0100% 0.00% 31.95000000% 0 7.10% NU 33.725% - (LIBOR × 4.75) 8.4550% 0.00% 33.72500000% 0 7.10% NV 34.08% - (LIBOR × 4.80) 8.5440% 0.00% 34.08000000% 0 7.10% NY 7.10% - LIBOR 1.7800% 0.00% 7.10000000% 0 7.10% SA 25.2375% - (LIBOR × 3.75) 5.2875% 0.00% 25.23750000% 0 6.73% SB 37.80% - (LIBOR × 6.00) 5.8800% 0.00% 37.80000000% 19 6.30% SC 18.5075% - (LIBOR × 2.75) 3.8775% 0.00% 18.50750000% 0 6.73% SD 20.19% - (LIBOR × 3.00) 4.2300% 0.00% 20.19000000% 0 6.73% SE 222.00% - (LIBOR × 24.00) 6.0000% 0.00% 6.00000000% 19 9.25% SF 21.8725% - (LIBOR × 3.25) 4.5825% 0.00% 21.87250000% 0 6.73% SG 23.555% - (LIBOR × 3.50) 4.9350% 0.00% 23.55500000% 0 6.73% SH 26.92% - (LIBOR × 4.00) 5.6400% 0.00% 26.92000000% 0 6.73% SJ 28.6025% - (LIBOR × 4.25) 5.9925% 0.00% 28.60250000% 0 6.73% SK 30.285% - (LIBOR × 4.50) 6.3450% 0.00% 30.28500000% 0 6.73% SL 31.9675% - (LIBOR × 4.75) 6.6975% 0.00% 31.96750000% 0 6.73% SM 33.65% - (LIBOR × 5.00) 7.0500% 0.00% 33.65000000% 0 6.73% SN 35.3325% - (LIBOR × 5.25) 7.4025% 0.00% 35.33250000% 0 6.73% B-13