Back to top

POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING  AGREEMENT | Document Parties: CREDIT SUISSE ADJUSTABLE RATE MORTGAGE TRUST 2006-1 | WELLS FARGO BANK, N.A.,  | CREDIT SUISSEFIRST BOSTON MORTGAGE  SECURITIES CORP.,  | DLJ MORTGAGE  CAPITAL,  INC. You are currently viewing:
This Pooling and Servicing Agreement involves

CREDIT SUISSE ADJUSTABLE RATE MORTGAGE TRUST 2006-1 | WELLS FARGO BANK, N.A., | CREDIT SUISSEFIRST BOSTON MORTGAGE SECURITIES CORP., | DLJ MORTGAGE CAPITAL, INC.

. RealDealDocs™ contains millions of easily searchable legal documents and clauses from top law firms. Search for free - click here.
Title: POOLING AND SERVICING AGREEMENT
Governing Law: Delaware     Date: 1/19/2007

POOLING AND SERVICING  AGREEMENT, Parties: credit suisse adjustable rate mortgage trust 2006-1 , wells fargo bank  n.a.   , credit suissefirst boston mortgage  securities corp.   , dlj mortgage  capital   inc.
50 of the Top 250 law firms use our Products every day
 
 
 
 
 
 
 
 
 
 
---------------------------------------------------------------------------------------------------------------------------------------
 
 
                                         
CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.,
 
            
                                                  
Depositor,
 
                                                      
DLJ MORTGAGE CAPITAL, INC.,
 
                                                                
Seller,
 
                                      
                  
WELLS FARGO BANK, N.A.,
 
                                 
Master Servicer, Servicer, Back-Up Servicer and Trust
Administrator,
 
                                                   
SELECT PORTFOLIO SERVICING, INC.,
 
                        
                            
Servicer and Special Servicer,
 
                                                                  
and
 
                                                    
U.S. BANK NATIONAL ASSOCIATION,
 
                                        
                        
Trustee
 
                                                    
POOLING AND SERVICING AGREEMENT
 
                                                     
DATED AS OF FEBRUARY 1, 2006
 
                                                       
       
relating to
 
                                                 
ADJUSTABLE RATE MORTGAGE TRUST 2006-1
 
                                      
ADJUSTABLE RATE MORTGAGE-BACKED PASS-THROUGH CERTIFICATES,
 
                                                  
           
SERIES 2006-1
 
 
---------------------------------------------------------------------------------------------------------------------------------------
 
                                                           
TABLE OF CONTENTS
 
              
                                                                   
                               
Page
 
 
ARTICLE I
DEFINITIONS.............................................................................................9
 
 
ARTICLE II CONVEYANCE OF MORTGAGE LOANS; REPRESENTATIONS AND
WARRANTIES..........................................63
 
   
SECTION 2.01.
           
Conveyance of Trust
Fund..............................................................63
   
SECTION 2.02.
           
Acceptance by the
Trustee.............................................................67
   
SECTION 2.03.
           
Representations and Warranties of the Seller, Master Servicer and
Servicers...........70
   
SECTION 2.04.
           
Representations and Warranties of the Depositor as to the Mortgage
Loans..............72
   
SECTION 2.05.
           
Delivery of Opinion of Counsel in Connection with
Substitutions.......................72
   
SECTION 2.06.
           
Issuance of
Certificates..............................................................72
   
SECTION 2.07.
           
REMIC
Provisions......................................................................73
   
SECTION 2.08.
           
Covenants of the Master Servicer and each
Servicer....................................78
 
ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE
LOANS.......................................................79
 
   
SECTION 3.01.
           
Servicers to Service Mortgage
Loans...................................................79
   
SECTION 3.02.
           
Subservicing; Enforcement of the Obligations of
Sub-Servicers.........................81
   
SECTION 3.03.
           
Master Servicing by Master
Servicer...................................................83
   
SECTION 3.04.
           
Trustee to Act as Master Servicer or
Servicer.........................................83
   
SECTION 3.05.
           
Collection of Mortgage Loans; Collection Accounts; Certificate
Account................84
   
SECTION 3.06.
           
Establishment of and Deposits to Escrow Accounts; Permitted
Withdrawals from Escrow Accounts;
                           
Payments of Taxes, Insurance and Other
Charges........................................87
   
SECTION 3.07.
           
Access to Certain Documentation and Information Regarding the
Non-Designated Mortgage Loans;
                           
Inspections...........................................................................89
   
SECTION 3.08.
           
Permitted Withdrawals from the Collection Accounts and Certificate
Account............89
   
SECTION 3.09.
           
Maintenance of Hazard Insurance; Mortgage Impairment Insurance and
Mortgage Guaranty Insurance
                           
Policy; Claims; Restoration of Mortgaged
Property.....................................91
   
SECTION 3.10.
      
     
Enforcement of Due on Sale Clauses; Assumption
Agreements.............................94
   
SECTION 3.11.
           
Realization Upon Defaulted Mortgage Loans; Repurchase of Certain
Mortgage Loans.......96
   
SECTION 3.12.
           
Trustee and Trust Administrator to Cooperate; Release of Mortgage
Files...............99
   
SECTION 3.13.
           
Documents, Records and Funds in Possession of a Servicer to be Held
for the Trust....100
   
SECTION 3.14.
           
Servicing Fee; Indemnification of Master
Servicer....................................101
   
SECTION 3.15.
           
Access to Certain
Documentation......................................................101
   
SECTION 3.16.
           
Maintenance of Fidelity Bond and Errors and Omissions
Insurance......................102
   
SECTION 3.17.
           
Special Serviced Mortgage
Loans......................................................102
   
SECTION 3.18.
           
Indemnification of Servicers and Master
Servicer.....................................103
  
 
SECTION 3.19.
           
Notification of
Adjustments..........................................................103
   
SECTION 3.20.
           
Designated Mortgage
Loans............................................................103
   
SECTION 3.21.
          
 
Assigned Prepayment
Premiums.........................................................105
 
ARTICLE IV PAYMENTS AND STATEMENTS TO
CERTIFICATEHOLDERS........................................................106
 
   
SECTION 4.01.
           
Priorities of
Distribution...........................................................106
   
SECTION 4.02.
           
Allocation of
Losses.................................................................115
   
SECTION 4.03.
           
Recoveries...........................................................................117
   
SECTION 4.04.
           
Reserved.............................................................................117
   
SECTION 4.05.
           
Monthly Statements to
Certificateholders.............................................117
   
SECTION 4.06.
           
Servicer to
Cooperate................................................................118
   
SECTION 4.07.
           
Cross-Collateralization; Adjustments to Available
Funds..............................118
   
SECTION 4.08.
           
Reserved.............................................................................119
   
SECTION 4.09.
           
Reserved.............................................................................119
   
SECTION 4.10.
           
Group 6 Interest Rate Cap
Account....................................................119
   
SECTION 4.11.
           
Supplemental Interest
Trust..........................................................121
   
SECTION 4.12.
           
Rights of Swap
Counterparty..........................................................123
   
SECTION 4.13.
           
Replacement Swap
Counterparty........................................................123
 
ARTICLE V ADVANCES BY THE MASTER SERVICER AND
SERVICERS.........................................................124
 
   
SECTION 5.01.
           
Advances by the Master Servicer and
Servicers........................................124
 
ARTICLE VI THE
CERTIFICATES.....................................................................................125
 
   
SECTION 6.01.
           
The
Certificates.....................................................................125
   
SECTION 6.02.
           
Registration of Transfer and Exchange of
Certificates................................126
   
SECTION 6.03.
           
Mutilated, Destroyed, Lost or Stolen
Certificates....................................131
   
SECTION 6.04.
           
Persons Deemed
Owners................................................................131
   
SECTION 6.05.
           
Access to List of Certificateholders' Names and
Addresses............................131
   
SECTION 6.06.
           
Maintenance of Office or
Agency......................................................131
   
SECTION 6.07.
           
Book Entry
Certificates..............................................................132
   
SECTION 6.08.
           
Notices to Clearing
Agency...........................................................132
   
SECTION 6.09.
           
Definitive
Certificates..............................................................133
 
ARTICLE VII THE DEPOSITOR, THE SELLER, THE MASTER
  
SERVICER, THE SERVICERS AND THE SPECIAL SERVICER.............134
 
   
SECTION 7.01.
           
Liabilities of the Seller, the Depositor, the Master Servicer, the
Back-Up Servicer, the
                           
Servicers and the Special
Servicer...................................................134
   
SECTION 7.02.
           
Merger or Consolidation of the Seller, the Depositor, the Back-Up
Servicer, the Master
        
                   
Servicer, the Servicers or the Special
Servicer......................................134
   
SECTION 7.03.
           
Limitation on Liability of the Seller, the Depositor, the Master
Servicer, the Back-Up
                           
Servicer, the Servicers, the Special Servicer and
Others.............................135
   
SECTION 7.04.
           
Master Servicer and Servicer Not to Resign; Transfer of
Servicing....................135
   
SECTION 7.05.
           
Master Servicer, Seller and Servicers May Own
Certificates...........................136
   
SECTION 7.06.
           
Termination of Duties of the Back-Up
Servicer........................................136
 
ARTICLE VIII
DEFAULT............................................................................................137
 
   
SECTION 8.01.
           
Events of
Default....................................................................137
   
SECTION 8.02.
           
Master Servicer or Trust Administrator to Act; Appointment of
Successor..............139
   
SECTION 8.03.
           
Notification to
Certificateholders...................................................141
   
SECTION 8.04.
           
Waiver of Events of
Default..........................................................141
 
ARTICLE IX CONCERNING THE
TRUSTEE...............................................................................142
 
   
SECTION 9.01.
           
Duties of
Trustee....................................................................142
   
SECTION 9.02.
           
Certain Matters Affecting the
Trustee................................................143
   
SECTION 9.03.
           
Trustee Not Liable for Certificates or Mortgage
Loans................................144
   
SECTION 9.04.
           
Trustee May Own
Certificates.........................................................145
   
SECTION 9.05.
           
Trustee's Fees and
Expenses..........................................................145
   
SECTION 9.06.
           
Eligibility Requirements for
Trustee.................................................145
   
SECTION 9.07.
           
Resignation and Removal of
Trustee...................................................146
   
SECTION 9.08.
           
Successor
Trustee....................................................................146
   
SECTION 9.09.
           
Merger or Consolidation of
Trustee...................................................147
   
SECTION 9.10.
           
Appointment of Co-Trustee or Separate
Trustee........................................147
   
SECTION 9.11.
           
Office of the
Trustee................................................................148
 
ARTICLE X CONCERNING THE TRUST
ADMINISTRATOR....................................................................149
 
   
SECTION 10.01.
          
Duties of Trust
Administrator........................................................149
   
SECTION 10.02.
          
Certain Matters Affecting the Trust
Administrator....................................150
   
SECTION 10.03.
          
Trust Administrator Not Liable for Certificates or Mortgage
Loans....................152
   
SECTION 10.04.
          
Trust Administrator May Own
Certificates.............................................152
   
SECTION 10.05.
          
Trust Administrator's Fees and
Expenses..............................................152
   
SECTION 10.06.
          
Eligibility Requirements for Trust
Administrator.....................................153
   
SECTION 10.07.
          
Resignation and Removal of Trust
Administrator.......................................153
   
SECTION 10.08.
          
Successor Trust
Administrator........................................................154
   
SECTION 10.09.
          
Merger or Consolidation of Trust
Administrator.......................................155
   
SECTION 10.10.
          
Appointment of Co-Trust Administrator or Separate Trust
Administrator................155
   
SECTION 10.11.
          
Office of the Trust
Administrator....................................................156
   
SECTION 10.12.
          
Tax
Return...........................................................................156
   
SECTION 10.13.
          
Determination of Certificate
Index...................................................156
 
ARTICLE XI
TERMINATION..........................................................................................157
 
   
SECTION 11.01.
          
Termination upon Liquidation or Purchase of all Mortgage
Loans.......................157
   
SECTION 11.02.
          
Determination of the Terminating
Entity..............................................159
   
SECTION 11.03.
          
Procedure Upon Optional Termination or Terminating Auction
Sale......................160
   
SECTION 11.04.
          
Additional Termination
Requirements..................................................161
 
ARTICLE XII MISCELLANEOUS
PROVISIONS............................................................................163
 
   
SECTION 12.01.
          
Amendment............................................................................163
   
SECTION 12.02.
          
Recordation of Agreement;
Counterparts...............................................165
   
SECTION 12.03.
          
Governing
Law........................................................................165
   
SECTION 12.04.
          
Intention of
Parties.................................................................166
   
SECTION 12.05.
          
Notices..............................................................................167
   
SECTION 12.06.
          
Severability of
Provisions...........................................................167
   
SECTION 12.07.
          
Limitation on Rights of
Certificateholders...........................................167
   
SECTION 12.08.
          
Certificates Nonassessable and Fully
Paid............................................168
   
SECTION 12.09.
          
Protection of
Assets.................................................................168
   
SECTION 12.10.
          
Non-Solicitation.....................................................................169
 
ARTICLE XIII EXCHANGE ACT
REPORTING.............................................................................169
 
   
SECTION 13.01.
          
Commission
Reporting.................................................................169
   
SECTION 13.02. 
         
Form 10-D
Reporting..................................................................169
   
SECTION 13.03.
          
Form 10-K
Reporting..................................................................170
   
SECTION 13.04.
          
Form 8-K
Reporting...................................................................171
   
SECTION 13.05.
          
Delisting; Amendment; Late Filing of
Reports.........................................172
   
SECTION 13.06.
          
Annual Statements of
Compliance......................................................173
   
SECTION 13.07.
          
Annual Assessments of
Compliance.....................................................173
   
SECTION 13.08.
          
Accountant's
Attestation.............................................................174
   
SECTION 13.09.
          
Sarbanes-Oxley
Certification.........................................................175
   
SECTION 13.10.
          
Indemnification......................................................................175
 
ARTICLE XIV SPS AND THE MASTER
SERVICER.........................................................................177
 
   
SECTION 14.01.
          
Reports and
Notices..................................................................177
   
SECTION 14.02.
   
       
Master Servicer's Oversight With Respect to the SPS Mortgage
Loans...................178
   
SECTION 14.03.
          
Termination..........................................................................178
   
SECTION 14.04.
          
Liability and
Indemnification........................................................178
   
SECTION 14.05.
          
Confidentiality......................................................................179
 
 
                                                               
EXHIBITS
 
   
Exhibit A:
              
Form of Class A
Certificate..........................................................A-1
   
Exhibit B:
              
Form of Class M
Certificate..........................................................B-1
   
Exhibit C:
    
          
Form of Class B
Certificate..........................................................C-1
   
Exhibit D-1:
            
Form of Class AR
Certificate.......................................................D-1-1
   
Exhibit D-2:
            
Form of Class AR-L
Certificate.....................................................D-2-1
   
Exhibit E:
              
Form of Class P
Certificate..........................................................E-1
   
Exhibit F:
              
Form of Class X
Certificate..........................................................F-1
   
Exhibit G:
              
Form of Reverse of
Certificates......................................................G-1
   
Exhibit H-1:
            
Form of Servicer
Information.......................................................H-1-1
   
Exhibit H-2:
            
Form of Realized Loss
Calculation..................................................H-2-1
   
Exhibit I-1:
            
Form of Trust Receipt and Initial
Certification....................................I-1-1
   
Exhibit I-2:
            
Form of Trust Receipt and Subsequent
Certification.................................I-2-1
   
Exhibit J:
              
Form of Trust Receipt and Final
Certification........................................J-1
   
Exhibit K:
        
      
Form of Request for
Release..........................................................K-1
   
Exhibit L:
              
Form of Transferor
Certificate.......................................................L-1
   
Exhibit M-1:
            
Form of Investment
Letter..........................................................M-1-1
   
Exhibit M-2:
            
Form of Rule 144A
Letter...........................................................M-2-1
   
Exhibit M-3:
            
Form of Regulation S
Letter........................................................M-3-1
   
Exhibit N:
              
Form of Investor Transfer Affidavit and
Agreement....................................N-1
   
Exhibit O:
              
Form of Transfer
Certificate.........................................................O-1
   
Exhibit P:
              
Form of SPS Mortgage Loans
Report..................................................P-1-1
   
Exhibit Q:
              
Form of Foreclosure Settlement
Statement.............................................Q-1
 
  
Exhibit R:
              
Relevant Servicing
Criteria..........................................................R-1
   
Exhibit S:
              
Additional Form 10-D
Disclosure......................................................S-1
   
Exhibit T:
            
  
Form of Monthly Statement to
Certificateholders......................................T-1
   
Exhibit U:
              
Form 8-K Disclosure Information
.....................................................U-1
   
Exhibit V:
              
Form of Annual Certification
........................................................V-1
   
Exhibit W:
              
Additional Disclosure Notification
..................................................W-1
   
Exhibit Y:
              
Additional Form 10-K Disclosure
.....................................................Y-1
   
Exhibit Z:
              
Form of Certification Regarding Substitution of Defective Mortgage
Loans ...........Z-1
 
 
                                                               
SCHEDULES
 
   
Schedule I:
        
     
Mortgage Loan
Schedule...............................................................I-1
   
Schedule IIA:
           
Representations and Warranties of Seller -
DLJMC...................................IIA-1
   
Schedule IIB:
           
Representations and Warranties of Master Servicer - Wells
Fargo....................IIB-1
   
Schedule IIC:
           
Representations and Warranties of Servicer and Special Servicer -
SPS..............IIC-1
   
Schedule IID:
           
Representations and Warranties of Servicer - Wells
Fargo...........................IID-1
   
Schedule III:
           
Representations and Warranties of DLJMC - Mortgage
Loans...........................III-1
 
 
                                                              
APPENDICES
 
   
Appendix A:
    
         
Calculation of Class Y Principal Reduction Amounts
.........................Appendix A-1
 
 
 
                  
THIS POOLING AND SERVICING
  
AGREEMENT,
  
dated as of February 1, 2006,
  
is hereby
  
executed by and among CREDIT SUISSE
FIRST BOSTON MORTGAGE
  
SECURITIES CORP., as depositor (the
  
"Depositor"),
  
DLJ MORTGAGE
  
CAPITAL,
  
INC.
  
("DLJMC"),
  
as seller (in such
capacity, the "Seller"),
  
WELLS FARGO BANK, N.A., as master servicer (in such capacity, the
"Master Servicer"),
  
as a servicer (in such
capacity, a "Servicer"),
  
as back-up servicer (in such capacity,
  
the "Back-Up Servicer") and as trust administrator (in such
capacity,
the "Trust Administrator"),
  
SELECT PORTFOLIO SERVICING,
  
INC. ("SPS"), as a servicer (in such capacity, a "Servicer"),
  
and as special
servicer
  
(in such
  
capacity,
  
the
  
"Special
  
Servicer"),
  
and U.S.
  
BANK
  
NATIONAL
  
ASSOCIATION,
  
as trustee
  
(in such
  
capacity,
  
the
"Trustee").
  
Capitalized
  
terms used in this Agreement and not otherwise
  
defined will have the meanings
  
assigned to them in Article I
below.
 
                                                         
PRELIMINARY STATEMENT
 
                  
The
  
Depositor
  
is the owner of the Trust Fund (other than the Trust's
  
rights
  
under the Group
  
6 Interest
  
Rate Cap
Agreement
  
and rights to payments from the
  
Supplemental
  
Interest
  
Account)
  
that is hereby
  
conveyed to the Trustee in return for the
Certificates.
  
The Trust Fund (exclusive of any entitlement to Assigned Prepayment
  
Premiums,
  
the Group 6 Interest Rate Cap Agreement,
the assets held in the Group 6 Interest Rate Cap Account,
  
and rights to payments from the Supplemental
  
Interest
  
Account) for federal
income tax purposes shall consist of three REMICs (referred to as
"REMIC I," "REMIC II" and "REMIC III").
 
 
                                                                
REMIC I
 
                  
As provided herein,
  
the Trust
  
Administrator will make an election to treat the segregated pool of
assets consisting
of the Group 1, Group 2, Group 3, Group 4 and Group 5 Mortgage
  
Loans and certain other related
  
assets
  
(exclusive of any
  
entitlement
to Assigned
  
Prepayment
  
Premiums)
  
subject to this
  
Agreement
  
as a real estate
  
mortgage
  
investment
  
conduit (a "REMIC") for federal
income tax purposes,
  
and such
  
segregated
  
pool of assets will be designated as "REMIC I." Component I of the
Class AR-L
  
Certificates
will
  
represent
  
the sole Class of "residual
  
interests"
  
in REMIC I for purposes of the REMIC
  
Provisions
  
(as defined
  
herein)
  
under
federal income tax law. The following
  
table
  
irrevocably
  
sets forth the
  
designation,
  
remittance rate (the
  
"Uncertificated
  
REMIC I
Pass-Through Rate") and initial
  
Uncertificated
  
Principal Balance for each of the "regular interests" in REMIC I
(the "REMIC I Regular
Interests")
  
and the Class
  
Principal
  
Balance of
  
Component I of the Class AR-L
  
Certificates.
  
The "latest
  
possible
  
maturity
  
date"
(determined
  
solely for purposes of satisfying
  
Treasury
  
regulation
  
Section 1.860G
  
1(a)(4)(iii))
  
for each REMIC I Regular
  
Interest
shall be the Maturity Date.
  
None of the REMIC I Regular Interests will be certificated.
 
 Class Designation for
                                     
Initial Uncertificated
 each REMIC I Regular
                                      
----------------------
     
Interest and
                        
Uncertificated
     
Principal Balance or
  
Component I of the
       
Type of
          
REMIC I
           
Class Principal
Class AR-L Certificates
    
Interest
    
Pass-Through Rate
          
Balance
        
          
Maturity Date*
       
Class Y-1
           
Regular
        
Variable(1)
        
$
       
82,055.57
               
March 2036
       
Class Y-2
           
Regular
        
Variable(2)
        
$
      
117,398.99
               
March 2036
       
Class Y-3
       
    
Regular
        
Variable(3)
        
$
      
129,390.52
               
March 2036
       
Class Y-4
           
Regular
        
Variable(4)
        
$
      
120,008.04
               
March 2036
       
Class Y-5
           
Regular
        
Variable(5)
        
$
       
86,165.52
               
March 2036
       
Class Z-1
           
Regular
        
Variable(1)
        
$
  
164,029,078.91
               
March 2036
       
Class Z-2
           
Regular
        
Variable(2)
        
$
  
234,680,575.09
               
March 2036
       
Class Z-3
           
Regular
        
Variable(3)
        
$
  
258,658,327.52
               
March 2036
       
Class Z-4
           
Regular
        
Variable(4)
        
$
  
239,902,264.88
               
March 2036
       
Class Z-5
           
Regular
        
Variable(5)
        
$ 
 
172,249,329.51
               
March 2036
  
Component I of the
       
Residual
       
Variable(1)
                                        
March 2036
      
Class AR-L
------------------------
*
    
The
  
Distribution
  
Date in the specified
  
month,
  
which is the month
  
following the month the latest maturing
     
Mortgage Loan in the related Loan Group matures.
  
For federal income tax purposes,
  
for each Class of REMIC I
     
Regular Interests, the "latest possible maturity date" shall be the
Maturity Date.
(1)
  
Interest distributed to REMIC I Regular Interests Y-1 and Z-1 and
Component I of the Class AR-L
  
Certificates
     
on each
  
Distribution
  
Date
  
will
  
have
  
accrued
  
at the Net WAC Rate for Loan
  
Group 1
  
applicable
  
for such
     
Distribution Date on the applicable
  
Uncertificated
  
Principal Balance or Class Principal Balance outstanding
     
immediately before such Distribution Date.
(2)
  
Interest
  
distributed to REMIC I Regular Interests Y-2 and Z-2 on each
Distribution Date will have accrued at
     
the Net WAC Rate for Loan Group 2
  
applicable for such
  
Distribution
  
Date on the
  
applicable
  
Uncertificated
     
Principal Balance outstanding immediately before such Distribution
Date.
(3)
  
Interest
  
distributed to REMIC I Regular Interests Y-3 and Z-3 on each
Distribution Date will have accrued at
     
the Net WAC Rate for Loan Group 3
  
applicable for such
  
Distribution
  
Date on the
  
applicable
  
Uncertificated
     
Principal Balance outstanding immediately before such Distribution
Date.
(4)
  
Interest
  
distributed to REMIC I Regular Interests Y-4 and Z-4 on each
Distribution Date will have accrued at
     
the Net WAC Rate for Loan Group 4
  
applicable for such
  
Distribution
  
Date on the
  
applicable
  
Uncertificated
     
Principal Balance outstanding immediately before such Distribution
Date.
(5)
  
Interest
  
distributed to REMIC I Regular Interests Y-5 and Z-5 on each
Distribution Date will have accrued at
     
the Net WAC Rate for Loan Group 5
  
applicable for such
  
Distribution
  
Date on the
  
applicable
  
Uncertificated
     
Principal Balance outstanding immediately before such Distribution
Date.
 
 
 
                                                               
REMIC II
 
         
As provided herein,
  
the Trust
  
Administrator
  
will make an election to treat the segregated pool of assets
  
consisting of the
Group 6
  
Mortgage Loans and certain other related assets
  
(exclusive of any entitlement to Assigned
  
Prepayment
  
Premiums,
  
the Group 6
Interest Rate Cap
  
Agreement,
  
the assets held in the Group 6 Interest Rate Cap Account,
  
and rights to payments from the
  
Supplemental
Interest Account) subject to this Agreement as a real estate
mortgage
  
investment
  
conduit (a "REMIC") for federal income tax purposes,
and such segregated pool of assets will be designated as "REMIC
II."
  
Component II
  
of the Class AR-L
  
Certificates
  
will represent the
sole
  
Class of
  
"residual
  
interests" in REMIC II for purposes of the REMIC
  
Provisions
  
(as defined
  
herein) under federal
  
income tax
law. The following table irrevocably sets forth the designation,
  
remittance rate (the
  
"Uncertificated
  
REMIC II
  
Pass-Through
  
Rate")
and initial
  
Uncertificated
  
Principal Balance for each of the "regular interests" in REMIC II
(the "REMIC II Regular Interests").
  
The
"latest possible maturity date" (determined
  
solely for purposes of satisfying
  
Treasury
  
regulation
  
Section 1.860G-1(a)(4)(iii))
  
for
each REMIC II Regular Interest shall be the Maturity Date.
  
None of the REMIC II Regular Interests will be certificated.
 
 Class Designation for
          
                           
Initial Uncertificated
 each REMIC II Regular
                                     
----------------------
     
Interest and
                        
Uncertificated
     
Principal Balance or
  
Component II of the
      
Type of
         
 
REMIC II
          
Class Principal
Class AR-L Certificates
    
Interest
    
Pass-Through Rate
          
Balance
                  
Maturity Date*
       
Class LT1
           
Regular
        
Variable(1)
        
$
  
279,423,924.18
               
March 2036
       
Class LT2
           
Regular
        
Variable(1)
        
$
        
8,742.22
               
March 2036
       
Class LT3
           
Regular
           
0.00%
           
$
       
19,204.89
               
March 2036
       
Class LT4
           
Regular
        
Variable(2)
      
  
$
       
19,204.89
               
March 2036
  
Component II of the
      
Residual
           
N/A
                                            
March 2036
      
Class AR-L
------------------------
*
     
The
  
Distribution
  
Date in the specified
  
month,
  
which is the month following the month the latest maturing
      
Mortgage
  
Loan in the
  
related
  
Loan
  
Group matures.
  
For federal
  
income tax
  
purposes,
  
for each
  
Class of
      
REMIC II Regular Interests, the "latest possible maturity date"
shall be the Maturity Date.
(1)
   
Interest
  
distributed to REMIC II Regular
  
Interests LT1 and LT2 on each Distribution Date will have accrued
      
at the weighted
  
average of the Net Mortgage Rates for the Group 6 Loans as of the
second preceding Due Date
      
on the applicable Uncertificated Principal Balance outstanding
immediately before such Distribution Date
(2)
   
Interest
  
distributed to REMIC II Regular Interest LT4 on each
  
Distribution Date will have accrued at twice
      
the weighted
  
average of the Net Mortgage Rates for the Group 6 Loans as of the
second preceding Due Date on
      
the applicable Uncertificated Principal Balance outstanding
immediately before such Distribution Date.
 
 
 
                                                               
REMIC III
 
    
              
As provided
  
herein,
  
the Trust
  
Administrator
  
will elect to treat the segregated
  
pool of assets
  
consisting of the
REMIC I
  
Regular
  
Interests and REMIC II
  
Regular
  
Interests as a REMIC for federal income tax purposes,
  
and such
  
segregated
  
pool of
assets will be designated as REMIC III.
  
The Class AR
  
Certificates will represent the sole Class of "residual
  
interests" in REMIC III
for purposes of the REMIC
  
Provisions
  
under federal
  
income tax law. The following
  
table and the
  
footnotes
  
that follow
  
irrevocably
sets forth the
  
designation,
  
Pass-Through
  
Rate,
  
aggregate
  
Initial Class
  
Principal
  
Balance,
  
and certain
  
other
  
features for each
Class of
  
Certificates
  
comprising the interests
  
representing "regular interests" in REMIC III (the "REMIC III
Regular Interests") and
the Class AR
  
Certificates.
  
The "latest possible
  
maturity date"
  
(determined
  
solely for purposes of satisfying
  
Treasury
  
Regulation
Section 1.860G-1(a)(4)(iii)) for each Class of REMIC III Regular
Certificates shall be the Maturity Date.
 
                                                                   
                                    
Integral
                                    
Class
                                                              
Multiples
                                  
Principal
               
Pass-Through
              
Minimum
            
in Excess
          
Class
                    
Balance
              
Rate (per annum)
          
Denomination
         
of Minimum
       
Class 1-A-1
          
 
$
      
53,000,000.00
          
Variable(1)
              
$25,000
                
$1
       
Class 1-A-2
           
$
      
92,270,000.00
          
Variable(1)
              
$25,000
                
$1
       
Class 1-A-3
           
$
       
7,107,000.00
          
Variable(1)
              
$25,000
                
$1
       
Class 2-A-1
           
$
     
202,420,000.00
          
Variable(2)
              
$25,000
                
$1
       
Class 2-A-2
           
$
      
15,590,000.00
          
Variable(2)
              
$25,000
         
       
$1
       
Class 3-A-1
           
$
     
165,000,000.00
          
Variable(3)
              
$25,000
                
$1
       
Class 3-A-2
           
$
      
30,038,000.00
          
Variable(3)
              
$25,000
                
$1
       
Class 3-A-3
        
   
$
      
42,010,000.00
          
Variable(3)
              
$25,000
                
$1
       
Class 3-A-4
           
$
       
3,236,000.00
          
Variable(3)
              
$25,000
                
$1
       
Class 4-A-1
           
$
     
206,925,000.00
          
Variable(4)
              
$25,000
                
$1
       
Class 4-A-2
           
$
      
15,935,000.00
          
Variable(4)
              
$25,000
                
$1
       
Class 5-A-1
           
$
     
148,572,000.00
          
Variable(5)
              
$25,000
       
         
$1
       
Class 5-A-2
           
$
      
11,442,000.00
          
Variable(5)
              
$25,000
                
$1
       
Class 6-A-1
           
$
     
228,635,000.00
          
Variable(6)
              
$25,000
                
$1
       
Class 6-A-2
      
     
$
      
25,405,000.00
          
Variable(7)
              
$25,000
                
$1
       
Class 6-M-1
           
$
      
12,855,000.00
          
Variable(8)
              
$25,000
                
$1
       
Class 6-M-2
           
$
       
6,430,000.00
          
Variable(9)
              
$25,000
                
$1
       
Class 6-M-3
           
$
       
4,750,000.00
         
Variable(10)
              
$25,000
                
$1
       
Class 6-M-4
           
$
       
1,396,000.00
         
Variable(11)
              
$25,000
     
           
$1
       
Class C-B-1
           
$
      
18,727,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-2
           
$
      
16,051,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-3
    
       
$
      
10,166,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-4
           
$
      
11,236,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-5
           
$
       
2,675,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-6
           
$
       
1,605,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-7
           
$
       
4,815,000.00
         
Variable(12)
              
$25,000
   
             
$1
       
Class C-B-8
           
$
       
6,955,000.00
         
Variable(12)
              
$25,000
                
$1
       
Class C-B-9
           
$
       
4,279,544.55
         
Variable(12)
              
$25,000
               
$1*
        
Class 6-X
   
         
$
              
76.18(13)
     
Variable(14)
                
(15)
                
N/A
         
Class P
                     
(16)
                      
N/A
                    
(17)
                
N/A
         
Class AR
            
$
              
50.00
       
       
N/A
                    
(18)
                
N/A
_______________
---------------------------------------------------------------------------------------------------------------------------------------
*
    
Except for one certificate of the Class C-B-9 Certificates which
shall contain any stub piece of less than $1.
(1)
      
With respect to each Distribution
  
Date, the Pass-Through Rate for the Class 1-A-1,
  
Class 1-A-2 and Class 1-A-3
  
Certificates
     
shall be a per annum rate equal to the Net WAC Rate for Loan Group
1 for that Distribution Date.
(2)
      
With respect to each
  
Distribution
  
Date, the Pass-Through
  
Rate for the Class 2-A-1 and Class 2-A-2
  
Certificates
  
shall be a
     
per annum rate equal to the Net WAC Rate for Loan Group 2 for that
Distribution Date.
(3)
      
With respect to each Distribution
  
Date, the Pass-Through Rate for the Class 3-A-1,
  
Class 3-A-2,
  
Class 3-A-3 and Class 3-A-4
     
Certificates shall be a per annum rate equal to the Net WAC Rate
for Loan Group 3 for that Distribution Date.
(4)
      
With respect to each
  
Distribution
  
Date, the Pass-Through
  
Rate for the Class 4-A-1 and Class 4-A-2
  
Certificates
  
shall be a
     
per annum rate equal to the Net WAC Rate for Loan Group 4 for that
Distribution Date.
(5)
      
With respect to each
  
Distribution
  
Date, the Pass-Through
  
Rate for the Class 5-A-1 and Class 5-A-2
  
Certificates
  
shall be a
     
per annum rate equal to the Net WAC Rate for Loan Group 5 for that
Distribution Date.
(6)
      
The
  
Formula
  
Rate for the March 2006
  
Distribution
  
Date for the
  
Class 6-A-1
  
Certificates
  
is 4.735% per annum.
  
After such
     
Distribution Date, the Formula Rate for the Class 6-A-1
  
Certificates shall be a per annum rate equal to the sum of the
applicable
     
Certificate Index and the applicable
  
Certificate Margin for such Distribution Date; provided,
  
however,
  
that on any Distribution
     
Date for which on the related Swap Payment Date there has occurred
a Swap Suspension
  
Event,
  
the Formula Rate for the Class 6-A-1
     
Certificates
  
shall be a per annum rate equal to the lesser of (a) the sum of the
applicable
  
Certificate Index and the applicable
     
Certificate
  
Margin for such
  
Distribution
  
Date and (b) the Net Funds Cap. The interest
  
rate for the REMIC III Regular
  
Interest
     
evidenced by the Class 6-A-1
  
Certificates
  
shall be the lesser of (a) the Formula Rate for the Class 6-A-1
  
Certificates
  
and (b)
     
the Net Funds Cap.
(7)
      
The Pass-Through Rate for the March 2006 Distribution
  
Date for the Class 6-A-2
  
Certificates is 4.895% per annum.
  
After such
     
Distribution
  
Date,
  
the
  
Pass-Through
  
Rate for the
  
Class 6-A-2-1
  
Certificates
  
shall be a per annum rate equal to the least of
     
(a) the sum of the applicable
  
Certificate Index and the applicable
  
Certificate
  
Margin for such Distribution
  
Date,
  
(b) the Net
     
Funds Cap and (c) 11.00%.
(8)
      
The Pass-Through Rate for the March 2006 Distribution
  
Date for the Class 6-M-1
  
Certificates is 4.995% per annum.
  
After such
     
Distribution Date, the Pass-Through Rate for the Class 6-M-1
  
Certificates shall be a per annum rate equal to the least of (a)
the
     
sum of the applicable
  
Certificate Index and the applicable
  
Certificate
  
Margin for such Distribution Date, (b) the Net Funds Cap
     
and (c) 11.00%.
(9)
      
The Pass-Through Rate for the March 2006 Distribution
  
Date for the Class 6-M-2
  
Certificates is 5.175% per annum.
  
After such
     
Distribution Date, the Pass-Through Rate for the Class 6-M-2
  
Certificates shall be a per annum rate equal to the least of (a)
the
     
sum of the applicable
  
Certificate Index and the applicable
  
Certificate
  
Margin for such Distribution Date, (b) the Net Funds Cap
     
and (c) 11.00%.
(10)
     
The Pass-Through Rate for the March 2006 Distribution
  
Date for the Class 6-M-3
  
Certificates is 6.105% per annum.
  
After such
     
Distribution Date, the Pass-Through Rate for the Class 6-M-3
  
Certificates shall be a per annum rate equal to the least of (a)
the
     
sum of the applicable
  
Certificate Index and the applicable
  
Certificate
  
Margin for such Distribution Date, (b) the Net Funds Cap
     
and (c) 11.00%.
(11)
     
The Pass-Through Rate for the March 2006 Distribution
  
Date for the Class 6-M-4
  
Certificates is 6.855% per annum.
  
After such
     
Distribution Date, the Pass-Through Rate for the Class 6-M-4
  
Certificates shall be a per annum rate equal to the least of (a)
the
     
sum of the applicable
  
Certificate Index and the applicable
  
Certificate
  
Margin for such Distribution Date, (b) the Net Funds Cap
     
and (c) 11.00%.
(12)
     
With respect to each Distribution
  
Date, the Pass-Through
  
Rate for the Class C-B-1,
  
Class C-B-2,
  
Class C-B-3,
  
Class C-B-4,
     
Class C-B-5,
  
Class C-B-6,
  
Class C-B-7, Class C-B-8 and Class C-B-9 Certificates shall be a
per annum rate equal to the quotient,
     
expressed as a percentage
  
of (a) the sum of (i) the
  
product of (x) the Net WAC Rate of Loan Group 1 for that
  
Distribution
  
Date
     
and (y) the
  
Subordinate
  
Component Balance
  
for Loan Group 1
  
immediately
  
prior to such Distribution
  
Date,
  
(ii) the product of
     
(x) the Net WAC Rate of Loan
  
Group 2
  
for that
  
Distribution
  
Date and (y) the
  
Subordinate
  
Component Balance
  
for Loan
  
Group 2
     
immediately prior to such Distribution Date,
  
(iii) the product of (x) the Net WAC Rate of Loan Group 3 for that
Distribution Date
     
and (y) the
  
Subordinate
  
Component Balance
  
for Loan Group 3
  
immediately
  
prior to such Distribution
  
Date,
  
(iv) the product of
     
(x) the Net WAC Rate of Loan
  
Group 4
  
for that
  
Distribution
  
Date and (y) the
  
Subordinate
  
Component Balance
  
for Loan
  
Group 4
     
immediately
  
prior to such
  
Distribution
  
Date and (v) the
  
product of (x) the Net WAC Rate of Loan Group 5 for that
  
Distribution
     
Date and (y) the
  
Subordinate
  
Component Balance
  
for Loan Group 5 immediately prior to such Distribution Date,
divided by (b) the
     
aggregate
  
of the
  
Subordinate
  
Component
  
Balances
  
for Loan Group 1, Loan Group 2, Loan Group 3, Loan
  
Group 4
  
and Loan Group 5
     
immediately prior to such Distribution Date.
(13)
     
The Class 6-X
  
Certificates
  
will not accrue
  
interest on their Class Principal
  
Balance.
  
The Class 6-X
  
Certificates
  
accrue
     
interest on the Class 6-X Notional Amount.
(14)
     
The
  
Class 6-X
  
Certificates
  
will be 
 
comprised
  
of two
  
REMIC III
  
Regular
  
Interests,
  
a principal
  
only
  
regular
  
interest
     
designated 6-X-PO and an interest only regular interest
  
designated
  
6-X-IO,
  
which will be entitled to distributions as set forth
     
herein.
  
On each Distribution
  
Date, the Class 6-X
  
Certificates
  
shall be entitled to the Class 6-X
  
Distributable
  
Amount.
  
With
     
respect to any Distribution
  
Date,
  
interest accrued on the Class 6-X
  
Certificates
  
during the related Accrual Period shall equal
     
interest at the related
  
Pass-Through Rate on the Class 6-X
  
Notional Amount
  
immediately prior to such Distribution Date, in each
     
case
  
reduced by any
  
interest
  
shortfalls
  
with respect to the
  
Mortgage
  
Loans in the related
  
Loan
  
Group including
  
Prepayment
     
Interest
  
Shortfalls
  
to the extent not
  
covered by
  
Compensating
  
Interest
  
Payments.
  
The
  
Pass-Through
  
Rate for the
  
Class 6-X
     
Certificates or REMIC III
  
Regular Interest 6-X-IO for any Distribution
  
Date shall equal a per annum rate equal to the percentage
     
equivalent of a fraction,
  
the numerator of which is the product of (a) 30 and (b) the sum of
the amounts
  
calculated
  
pursuant to
     
clauses (i) through
  
(iii) below,
  
and the
  
denominator
  
of which is the product of (a) the
  
actual
  
number of days in the related
     
Accrual Period and (b) the
  
aggregate
  
Uncertificated
  
Principal
  
Balance of REMIC II Regular Interests LT1, LT2, LT3 and LT4. For
     
purposes of calculating the Pass-Through Rate for the Class 6-X
  
Certificates,
  
the numerator is equal to the sum of the following
     
components:
         
(i)
  
the
  
Uncertificated
  
Pass-Through
  
Rate for REMIC II Regular
  
Interests LT1 minus the Marker Rate,
  
applied to a notional
              
amount equal to the aggregate Uncertificated Principal Balance of
REMIC II Regular Interest LT1;
         
(ii) the
  
Uncertificated
  
Pass-Through
  
Rate for REMIC II
  
Regular
  
Interest LT2 minus the Marker Rate,
  
applied to a notional
              
amount equal to the Uncertificated Principal Balance of REMIC II
Regular Interest LT2; and
         
(iii)
    
the
  
Uncertificated
  
Pass-Through
  
Rate for REMIC II Regular
  
Interest LT4 minus twice the Marker Rate,
  
applied to a
              
notional amount equal to the Uncertificated Principal Balance of
REMIC II Regular Interest LT4.
     
Accrued
  
interest on the Class 6-X
  
Certificates
  
shall accrue on the basis of a 360-day year and the actual number
of days in the
     
related
  
Accrual
  
Period.
  
Payments from the Interest
  
Remittance
  
Amount or Principal
  
Remittance
  
Amount to any Class of Group 6
     
Certificates in respect of Basis Risk Shortfalls or to the
Supplemental
  
Interest Trust for payment to the Swap Counterparty shall
     
be deemed to have first been
  
distributed
  
from
  
REMIC III to the holders of the
  
Class 6-X
  
Certificates
  
in respect of REMIC III
     
Regular
  
Interest 6-X-IO and then paid by such holders to such Class of
Group 6 Certificates or the
  
Supplemental
  
Interest Trust,
     
as applicable.
  
Any amounts
  
distributed to the holders of the Class 6-A-1 Certificates by the
Trust Administrator from amounts it
     
receives
  
from the
  
Supplemental
  
Interest
  
Account shall be deemed to have first been paid outside of any
REMIC to the holders of
     
the Class 6-X
  
Certificates
  
in respect of their rights with respect to the
  
Supplemental
  
Interest Trust and then paid outside of
     
any REMIC by such holders to holders of the Class 6-A-1
Certificates.
(15)
     
The Class 6-X
  
Certificates
  
will be issued in
  
certificated,
  
fully-registered
  
form in minimum
  
denominations
  
of 20% of the
     
Percentage Interest therein and increments of 10% in excess
thereof.
(16)
     
The Class P
  
Certificates
  
will not have a Class Principal
  
Balance.
  
The Class P Certificates
  
shall have an initial notional
     
balance of
  
$1,349,525,720.73
  
and will be entitled to distributions of Assigned
  
Prepayment Premiums only. Such entitlement shall
     
not be an interest in any REMIC created hereunder.
(17)
     
The
  
Class P
  
Certificates
  
will be issued in
  
certificated,
  
fully-registered
  
form in
  
minimum
  
denominations
  
of 20% of the
     
Percentage Interest therein and increments of 10% in excess
thereof.
(18)
     
The Class AR Certificates will be issued in minimum Percentage
Interests of 20%.
 
 
 
 
           
       
For the avoidance of doubt, the Trust
  
Administrator shall account for any interest amount due to a
Certificateholder
in excess of the interest rate on the REMIC Regular
  
Interest issued by REMIC III
  
evidenced by such Certificate as part of the payment
made to the Class 6-X
  
Certificates,
  
to the extent it is entitled to funds from the REMIC, and then paid
outside of the REMIC pursuant
to a separate contractual right to such Certificateholder.
 
                  
The
  
foregoing
  
REMIC
  
structure
  
is intended
  
to cause all of the cash from the
  
Mortgage
  
Loans to flow
  
through to
REMIC III as cash flow on a REMIC Regular Interest,
  
without creating any
  
shortfall--actual or potential (other than for credit losses)
to any REMIC
  
Regular
  
Interest.
  
To the extent that the structure is believed to diverge from such
  
intention the Trust
  
Administrator
shall
  
resolve
  
ambiguities
  
to
  
accomplish
  
such
  
result
  
and
  
shall to the
  
extent
  
necessary
  
rectify
  
any
  
drafting
  
errors or seek
clarification to the structure without Certificateholder approval
(but with guidance of counsel) to accomplish such intention.
 
 
 
                  
Set forth below are designations of Classes of Certificates to the
categories used herein:
 
Book-Entry Certificates.............
  
  
All Classes of Certificates other than the Physical Certificates.
Class A Certificates................
    
The Group 1, Group 2, Group 3, Group 4 and Group 5 Certificates and
the
                                        
Group 6 Senior Certificates.
Class C-B Certificates..............
    
The Class C-B-1, Class C-B-2, Class C-B-3, Class C-B-4, Class
C-B-5,
                                        
Class C-B-6, Class C-B-7, Class C-B-8 and Class C-B-9 Certificates.
Class M Certificates................
    
The Class 6-M-1, Class 6-M-2, Class 6-M-3 and Class 6-M-4
Certificates.
ERISA-Restricted Certificates.......
    
Residual Certificates and Private Certificates; and any
Certificates that
                                        
do not satisfy the applicable ratings requirement under the
Underwriter's
                                        
Exemption.
Group 1 Certificates................
    
The Class 1-A-1, Class 1-A-2, Class 1-A-3 and Residual
Certificates.
Group 2 Certificates................
    
The Class 2-A-1 and Class 2-A-2 Certificates.
Group 3 Certificates................
    
The Class 3-A-1, Class 3-A-2, Class 3-A-3 and Class 3-A-4
Certificates.
Group 4 Certificates................
    
The Class 4-A-1 and Class 4-A-2 Certificates.
Group 5 Certificates................
    
The Class 5-A-1 and Class 5-A-2 Certificates.
Group 6 Certificates................
    
The Group 6 Senior Certificates, Class 6-X Certificates and Class M
                                        
Certificates.
Group 6 Senior Certificates.........
  
  
The Class 6-A-1 and Class 6-A-2 Certificates.
LIBOR Certificates..................
    
The Group 6 Senior Certificates and Class M Certificates.
Notional Amount Certificates........
    
The Class 6-X Certificates.
Offered Certificates................
    
All Classes of Certificates other than the Private Certificates.
Private Certificates................
    
The Class C-B-7 Class C-B-8, Class C-B-9, Class 6-X and Class P
                                        
Certificates.
Physical Certificates...............
    
The Residual Certificates and the Private Certificates.
Rating Agencies.....................
    
Moody's and S&P.
Regular Certificates................
    
All Classes of Certificates other than the Residual Certificates.
Residual Certificates...............
    
The Class AR and Class AR-L Certificates.
Senior Certificates.................
    
The Class A Certificates.
Subordinate Certificates............
    
The Class M, Class C-B and Class 6-X Certificates.
 
 
 
                  
All
  
covenants
   
and
   
agreements
   
made
  
by
  
the
  
Depositor
   
herein
  
are
  
for
  
the
  
benefit
  
and
  
security
  
of
  
the
Certificateholders.
  
The
  
Depositor
  
is entering
  
into this
  
Agreement,
  
and the Trustee is
  
accepting
  
the trusts
  
created
  
hereby and
thereby, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged.
 
                  
The parties
  
hereto
  
intend to effect an absolute sale and
  
assignment
  
of the Mortgage
  
Loans to the Trustee for the
benefit of
  
Certificateholders
  
under this Agreement.
  
However, the Depositor and the Seller will hereunder absolutely
assign and, as a
precautionary
  
matter grant a security
  
interest,
  
in and to its rights, if any, in the related Mortgage Loans to the
Trustee on behalf
of Certificateholders to ensure that the interest of the
Certificateholders hereunder in the Mortgage Loans is fully
protected.
 
 
 
                                                     
W I T N E S S E T H T H A T:
 
                  
In consideration of the mutual agreements
  
herein
  
contained,
  
the Depositor,
  
the Seller,
  
the Master Servicer,
  
the
Servicers, the Special Servicer, the Trustee and the Trust
Administrator agree as follows:
 
ARTICLE I
                                                              
DEFINITIONS
 
          
        
Whenever used in this Agreement,
  
the following words and phrases, unless the context otherwise
requires,
  
shall have
the following meanings:
 
                  
1933 Act:
  
The Securities Act of 1933, as amended.
 
                  
Accepted
  
Servicing
  
Practices:
  
With respect to any Mortgage
  
Loan,
  
those mortgage
  
servicing
  
practices of prudent
mortgage
  
lending
  
institutions
  
which service
  
mortgage
  
loans of the same type as such Mortgage
  
Loan in the
  
jurisdiction
  
where the
related Mortgaged Property is located.
 
                  
Accountant's Attestation:
  
The attestation required from an Accountant pursuant to Section
13.08.
 
                  
Accrual
  
Period:
  
For any
  
interest
  
bearing
  
Class of
  
Certificates,
  
other
  
than the
  
LIBOR
  
Certificates,
  
and any
Distribution
  
Date, the calendar month immediately
  
preceding such Distribution
  
Date and with respect to the LIBOR
  
Certificates,
  
the
period
  
beginning on the
  
immediately
  
preceding
  
Distribution
  
Date (or the Closing Date, in the case of the first Accrual Period)
and
ending on the day immediately preceding such Distribution Date.
 
                  
Additional Disclosure Notification:
  
As defined in Section 13.02.
 
                  
Additional Form 10-D Disclosure:
  
As defined in Section 13.02.
 
                  
Additional Form 10-K Disclosure:
  
As defined in Section 13.03.
 
                  
Additional
  
Servicer:
  
Each affiliate of each Servicer that Services any of the Mortgage
Loans and each Person who is
not an affiliate of any Servicer,
  
who Servicers 10% or more of the Mortgage Loans (measure by
aggregate
  
Stated
  
Principal
  
Balance of
the Mortgage Loans,
  
annually at the
  
commencement of the calendar year prior to the year in which an
Item 1123 Certificate is required
to the delivered). For clarification purposes, the Master Servicer
and the Trust Administrator are Additional Servicers.
 
                  
Advance:
  
With respect to any
  
Non-Designated
  
Mortgage Loan and any
  
Distribution
  
Date, any payment
  
required to be
made by a Servicer or the Master Servicer, as applicable, with
respect to such Distribution Date pursuant to Section 5.01.
 
                  
With respect to any Countrywide
  
Serviced Mortgage Loan and any Distribution Date, the payment
required to be made by
(i)
  
Countrywide
  
with respect to the Remittance Date (as defined in the Countrywide
  
Underlying
  
Servicing
  
Agreement) in the month of
such Distribution Date pursuant to Subsection 11.19 of Exhibit 9 of
the Countrywide
  
Underlying
  
Servicing Agreement or (ii) the Master
Servicer with respect to such Distribution Date pursuant to Section
3.20(b) of this Agreement.
 
                  
Adverse REMIC Event:
  
As defined in Section 2.07(f).
 
                  
Adjustment
  
Date:
  
With respect to each
  
Mortgage
  
Loan,
  
each
  
adjustment
  
date on which the
  
Mortgage
  
Rate thereon
changes
  
pursuant to the related
  
Mortgage Note. The first
  
Adjustment Date following the Cut-off Date as to each such Mortgage
Loan is
set forth in the Mortgage Loan Schedule.
 
                  
Aggregate Groups 1-5 Collateral Balance:
  
With respect to any date of determination,
  
will be equal to the sum of the
Aggregate
  
Loan Group
  
Balances
  
for Loan
  
Group 1,
  
Loan
  
Group 2,
  
Loan
  
Group 3,
  
Loan
  
Group 4
  
and Loan Group 5 as of such date of
determination.
 
                  
Aggregate Loan
  
Group Balance:
  
With respect to any Loan Group and as of any date of determination,
  
will be equal to
the
  
aggregate
  
Stated
  
Principal
  
Balance of the
  
Mortgage
  
Loans in such Loan
  
Group as of the first day of the month of such date of
determination.
 
                  
Agreement:
  
This Pooling and Servicing Agreement and all amendments or
supplements hereto.
 
                  
Ancillary Income:
  
All income derived from the
  
Non-Designated
  
Mortgage Loans,
  
other than Servicing Fees and Master
Servicing
  
Fees,
  
including
  
but not limited to, late
  
charges,
  
fees
  
received
  
with respect to checks or bank drafts
  
returned by the
related bank for
  
non-sufficient
  
funds,
  
assumption fees,
  
optional
  
insurance
  
administrative
  
fees and all other incidental fees and
charges.
  
Ancillary Income does not include any Assigned Prepayment Premiums.
 
                  
Applied Loss Amount:
  
With respect to any
  
Distribution
  
Date, with respect to the Group 6 Certificates,
  
the excess,
if any,
  
of
  
(i) the
  
aggregate
  
Class
  
Principal
  
Balances
  
of the
  
Group 6
  
Certificates
  
(other
  
than the
  
related
  
Notional
  
Amount
Certificates),
  
after giving
  
effect to all Realized
  
Losses with respect to the Mortgage
  
Loans in Loan Group 6 during the
  
Collection
Period for such Distribution
  
Date and payments of principal on such
  
Distribution Date over (ii) the
  
Aggregate Loan Group Balance for
Loan Group 6 for such Distribution Date.
 
                  
Appraised
  
Value:
  
The appraised value of the Mortgaged
  
Property based upon the appraisal made for the originator at
the
  
time of the
  
origination
  
of the
  
related
  
Mortgage
  
Loan
  
or the
  
sales
  
price
  
of the
  
Mortgaged
  
Property
  
at the
  
time of such
origination,
  
whichever is less,
  
or (i) with
  
respect to any Mortgage
  
Loan that
  
represents a
  
refinancing
  
other than a
  
Streamlined
Mortgage
  
Loan,
  
the lower of the appraised
  
value at
  
origination
  
or the appraised
  
value of the
  
Mortgaged
  
Property
  
based upon the
appraisal made at the time of such
  
refinancing
  
and (ii) with
  
respect to any
  
Streamlined
  
Mortgage Loan, the appraised
  
value of the
Mortgaged Property based upon the appraisal made in connection with
the origination of the mortgage loan being refinanced.
 
                 
 
Assigned Prepayment
  
Premium:
  
Any Prepayment Premium on a Wells Fargo Serviced Mortgage Loan, any
Prepayment Premium
on a SPS Serviced Mortgage Loan and any other Prepayment Premium on
deposit in the Certificate Account.
 
                  
Assignment and Assumption
  
Agreement:
  
That certain assignment and assumption agreement dated as of
February 1, 2006,
by and between DLJ Mortgage Capital, Inc., as assignor, and the
Depositor, as assignee, relating to the Mortgage Loans.
 
                  
Assignment of
  
Proprietary
  
Lease:
  
With respect to a
  
Cooperative
  
Loan,
  
the
  
assignment or mortgage of the related
Proprietary Lease from the Mortgagor to the originator of the
Cooperative Loan.
 
                  
Available Distribution Amount: With respect to any Distribution
Date and each of Group 1,
  
Group 2,
  
Group 3, Group 4
and Group 5 the sum of:
 
(i)......all amounts in respect of
  
Scheduled
  
Payments
  
(net of the
  
related
  
Expense
  
Fees) due on the related Due Date and
  
received
         
prior to the related Determination Date on the related Mortgage
Loans, together with any Advances in respect thereof;
 
(ii)
     
all Insurance
  
Proceeds (to the extent not applied to the
  
restoration of the Mortgaged
  
Property or released to the Mortgagor
         
in accordance with the applicable
  
Servicer's
  
Accepted
  
Servicing
  
Standards),
  
all Liquidation
  
Proceeds received during the
         
calendar month preceding the month of that
  
Distribution
  
Date on the related Mortgage Loans, in each case net of
unreimbursed
     
    
Liquidation Expenses incurred with respect to such Mortgage Loans;
 
(iii)
    
all Principal
  
Prepayments
  
received during the related Prepayment Period on the related
Mortgage Loans,
  
excluding Prepayment
         
Premiums;
 
(iv)
     
amounts received with respect to such
  
Distribution
  
Date as the Substitution
  
Adjustment
  
Amount or Purchase Price in respect
         
of a Mortgage Loan in the related Loan
  
Group repurchased
  
by the Seller,
  
purchased by a Holder of a Subordinate
  
Certificate
         
pursuant to Section 3.11(f) or purchased by the Special Servicer
pursuant to Section 3.11(g) as of such Distribution Date;
 
(v)
      
any amounts
  
payable as
  
Compensating
  
Interest
  
Payments by a Servicer
  
with
  
respect to the related
  
Mortgage
  
Loans on such
         
Distribution Date;
 
(vi)
     
all Recoveries, if any; and
 
(vii)
    
the portion of the Mortgage Loan Purchase
  
Price related to such Loan
  
Group paid in connection
  
with an Optional
  
Termination
         
up to the amount of the Par Value for such Loan Group;
 
in the case of
  
clauses (i) through
  
(iv) above
  
reduced by amounts in reimbursement for Advances
  
previously made and other amounts as
to which the
  
Trustee,
  
the Trust
  
Administrator,
  
a
  
Servicer
  
or the
  
Master
  
Servicer
  
is
  
entitled
  
to be
  
reimbursed
  
pursuant
  
to
Section 3.08 in respect of the related Mortgage Loans or otherwise.
 
                  
Back-Up
  
Servicer:
  
Wells Fargo Bank,
  
National
  
Association,
  
acting in its capacity as back-up servicer for the SPS
Serviced Loans hereunder, or its successors in interest, as
applicable.
 
                  
Bankruptcy Code:
  
The United States Bankruptcy Code, as amended from time to time (11
U.S.C. ss.ss. 101 et seq.).
 
                  
Bankruptcy
  
Coverage
  
Termination
  
Date:
  
The point in time at which the
  
Bankruptcy
  
Loss
  
Coverage
  
Amount has been
reduced to zero.
 
                  
Bankruptcy
  
Loss: With respect to any Loan Group,
  
Realized Losses on the Mortgage Loans in that Loan
  
Group incurred
as a result of a Deficient Valuation or Debt Service Reduction.
 
                  
Bankruptcy Loss Coverage Amount:
  
As of any
  
Determination
  
Date, the Bankruptcy Loss Coverage Amount shall equal the
Initial
  
Bankruptcy
  
Loss
  
Coverage
  
Amount as reduced by (i) the
  
aggregate
  
amount of
  
Bankruptcy
  
Losses
  
allocated to the Class C-B
Certificates
  
since the Cut-off Date and (ii) any
  
permissible
  
reductions in the
  
Bankruptcy
  
Loss
  
Coverage
  
Amount as evidenced by a
letter of each Rating Agency to the Trust
  
Administrator
  
to the effect that any such reduction
  
will not result in a
  
downgrading,
  
or
otherwise adversely affect, of the then current ratings assigned to
such Classes of Certificates rated by it.
 
                  
Basis Risk
  
Shortfall:
  
For any
  
Class of
  
LIBOR
  
Certificates
  
(other
  
than the
  
Class 6-A-1
  
Certificates)
  
and any
Distribution
  
Date, the sum of (i) the
  
excess,
  
if any, of (a) the related
  
Current
  
Interest
  
calculated on the basis of the least of
(x) the applicable
  
Certificate Index plus the applicable Certificate Margin, (y) the
Maximum Interest Rate and (z) 11.00% over (b) the
related Current Interest for the applicable
  
Distribution
  
Date,
  
(ii) any amount described in clause
  
(i) remaining
  
unpaid from prior
Distribution
  
Dates,
  
and
  
(iii) interest
  
on the amount in clause (ii) for the related
  
Accrual Period
  
calculated at a per annum rate
equal to the least of
  
(x) the
  
applicable
  
Certificate
  
Index plus the
  
applicable
  
Certificate
  
Margin,
  
(y) the
  
applicable
  
Maximum
Interest Rate and (z) 11.00%.
  
For the Class 6-A-1
  
Certificates
  
and any
  
Distribution
  
Date on which on the related Swap Payment Date
there has occurred a Swap Suspension
  
Event, the sum of (i) the excess,
  
if any, of (a) the related Current Interest
  
calculated on the
basis of the lesser of (x) the
  
applicable
  
Certificate Index plus the applicable
  
Certificate Margin and (y) the Maximum Interest Rate
over (b) the related Current Interest for the applicable
  
Distribution Date,
  
(ii) any amount described in clause (i)
  
remaining unpaid
from prior
  
Distribution
  
Dates,
  
and
  
(iii) interest
  
on the amount in clause (ii) for the related Accrual Period
  
calculated at a per
annum rate equal to the least of (x) the
  
applicable
  
Certificate Index plus the applicable
  
Certificate
  
Margin and (y) the applicable
Maximum Interest Rate.
 
                  
Beneficial
  
Holder:
  
A Person holding a beneficial
  
interest in any Certificate
  
through a Participant or an Indirect
Participant or a Person holding a beneficial interest in any
Definitive Certificate.
 
                  
Book-Entry Certificates: As set forth in the Preliminary Statement.
 
                  
Book-Entry Form: Any Certificate held through the facilities of the
Depository.
 
                  
Business Day: Any day other than (i) a Saturday or a Sunday or (ii)
a day on which banking
  
institutions
  
in New York
or the state in which the
  
office of the
  
Master
  
Servicer
  
or any
  
Servicer
  
or the
  
Corporate
  
Trust
  
Office of the
  
Trustee or Trust
Administrator are located are authorized or obligated by law or
executive order to be closed.
 
                  
Carryforward
  
Interest:
  
For any Class of LIBOR Certificates and any Distribution Date, the
sum of (1) the amount, if
any, by which (x) the sum of (A) Current
  
Interest for such Class for the immediately
  
preceding
  
Distribution
  
Date and (B) any unpaid
Carryforward
  
Interest for such
  
Class from
  
previous
  
Distribution
  
Dates exceeds
  
(y) the
  
amount paid in respect of interest on such
Class on such
  
immediately
  
preceding
  
Distribution
  
Date,
  
and (2)
  
interest
  
on such
  
amount for the
  
related
  
Accrual
  
Period at the
applicable Pass-Through Rate.
 
                  
Cash
  
Remittance
  
Date:
  
With respect to any
  
Distribution
  
Date and (A) SPS, the
  
7th calendar
  
day
  
preceding
  
such
Distribution
  
Date, or if such 7th calendar day is not a Business
  
Day, the Business Day
  
immediately
  
preceding
  
such 7th calendar day
and (B) Wells Fargo and the Designated
  
Servicers,
  
the
  
18th calendar
  
day of the month in which the Distribution
  
Date occurs,
  
or if
such 18th calendar day is not a Business Day, the Business Day
immediately following such 18th calendar day.
 
                  
Certificate:
  
Any Certificates
  
executed and
  
authenticated
  
by the Trust
  
Administrator on behalf of the Trustee for
the benefit of the Certificateholders in substantially the form or
forms attached as Exhibits A through G hereto.
 
                  
Certificate
  
Account:
  
The separate
  
Eligible
  
Account
  
created and maintained with the Trust
  
Administrator,
  
or any
other bank or trust company
  
acceptable to the Rating Agencies which is
  
incorporated
  
under the laws of the United States or any state
thereof pursuant to Section 3.05,
  
which account shall bear a designation
  
clearly indicating that the funds deposited therein are held
in trust for the
  
benefit
  
of the Trust
  
Administrator,
  
as agent for the
  
Trustee,
  
on behalf of the
  
Certificateholders
  
or any other
account serving a similar
  
function
  
acceptable to the Rating
  
Agencies.
  
Funds in the
  
Certificate
  
Account may (i) be held uninvested
without
  
liability for interest or compensation
  
thereon or (ii) be
  
invested at the direction of the Trust
  
Administrator
  
in Eligible
Investments and reinvestment
  
earnings
  
thereon (net of investment
  
losses) shall be paid to the Trust 
 
Administrator.
  
Funds deposited
in the Certificate
  
Account
  
(exclusive of the amounts permitted to be withdrawn
  
pursuant to
  
Section 3.08(b))
  
shall be held in trust
for the Certificateholders.
 
                  
Certificate
  
Balance:
  
With respect to any
  
Certificate
  
at any date, the maximum dollar amount of principal to which
the Holder thereof is then entitled
  
hereunder,
  
such amount being equal to the
  
Denomination
  
thereof
  
(i) minus all
  
distributions of
principal and
  
allocations of Realized
  
Losses,
  
including
  
Excess Losses or Applied Loss Amounts,
  
as applicable,
  
previously
  
made or
allocated with respect thereto and, in the case of the Class 6-A-2
Certificates and any Subordinate
  
Certificates,
  
reduced by any such
amounts
  
allocated to such Class on prior
  
Distribution
  
Dates pursuant to Section 4.02 and (ii) plus the amount of any
increase to the
Certificate Balance of such Certificate pursuant to Section 4.03.
 
                  
With respect to each Class 6-X Certificate, on any date of
determination,
  
an amount equal to the Percentage Interest
evidenced by such
  
Certificate
  
multiplied by an amount equal to (i) the
  
excess,
  
if any, of (A) the Aggregate
  
Loan Group Balance for
Loan Group 6 as of such date of determination,
  
over (B) the then aggregate Class Principal Balance of the Group 6
Senior
  
Certificates
and Class M
  
Certificates
  
then
  
outstanding,
  
which
  
represents
  
the sum of (i) the
  
initial
  
principal
  
balance of REMIC III
  
Regular
Interest
  
6-X-PO,
  
as reduced by Realized
  
Losses
  
allocated
  
thereto and payments
  
deemed made thereon,
  
and
  
(ii) accrued
  
and unpaid
interest on REMIC III Regular Interest 6-X-IO, as reduced by
Realized Losses allocated thereto.
 
                  
Certificate Group: Any of Certificate
  
Group 1,
  
Certificate
  
Group 2,
  
Certificate
  
Group 3,
  
Certificate Group 5 or
Certificate Group 6, as applicable.
 
                  
Certificate
  
Group 1:
  
Any of the
  
Certificates
  
with a
  
Class designation
  
beginning
  
with "1" and
  
relating to Loan
Group 1.
 
       
           
Certificate
  
Group 2:
  
Any of the
  
Certificates
  
with a
  
Class designation
  
beginning
  
with "2" and
  
relating to Loan
Group 2.
                  
Certificate
  
Group 3:
  
Any of the
  
Certificates
  
with a
  
Class designation
  
beginning
  
with "3" and 
 
relating to Loan
Group 3.
 
                  
Certificate
  
Group 4:
  
Any of the
  
Certificates
  
with a
  
Class designation
  
beginning
  
with "4" and
  
relating to Loan
Group 4.
 
                  
Certificate Group 5: Any of the Certificates with a
  
Class designation
  
beginning with "5" and relating to Loan Group
5.
 
                  
Certificate Group 6: Any of the Certificates with a
  
Class designation
  
beginning with "6" and relating to Loan Group
6.
 
                  
Certificateholder or Holder:
  
The Person in whose name a Certificate is registered in the
Certificate Register.
 
                  
Certificate Index: With respect to each Distribution Date and the
LIBOR
  
Certificates,
  
the rate for one month United
States
  
dollar
  
deposits
  
quoted on Telerate
  
Page 3750 as of 11:00 A.M.,
  
London
  
time,
  
on the related
  
Interest
  
Determination
  
Date
relating to each Class of
  
LIBOR
  
Certificates.
  
If such rate does not appear on such page (or such other page as
may replace that page
on that service,
  
or if such service is no longer
  
offered,
  
such other service for displaying
  
one month LIBOR or comparable
  
rates as
may be reasonably
  
selected by the Trust
  
Administrator
  
after
  
consultation
  
with DLJMC),
  
the rate will be the related Reference Bank
Rate. If no such
  
quotations can be obtained and no related
  
Reference Bank Rate is available,
  
the
  
Certificate
  
Index with respect to
the LIBOR Certificates will be the Certificate Index applicable to
such Certificates on the preceding Distribution Date.
 
             
     
On the Interest
  
Determination
  
Date immediately
  
preceding each
  
Distribution
  
Date, the Trust
  
Administrator
  
shall
determine each Certificate
  
Index for the Accrual Period
  
commencing on such
  
Distribution Date and inform the Master Servicer and each
Servicer of such rate.
 
                  
Certificate Margin:
  
As to each Class of LIBOR Certificates, the applicable amount set
forth below:
 
                                                              
Certificate Margin
                        
Class
                         
(1)
                           
(2)
                       
6-A-1
                         
0.13%
                         
0.26%
                       
6-A-2
                         
0.29%
                         
0.58%
                   
    
6-M-1
                         
0.39%
                         
0.89%
                       
6-M-2
                         
0.57%
                         
1.07%
                       
6-M-3
                         
1.50%
                         
2.00%
        
               
6-M-4
                         
2.25%
                         
2.75%
 
            
___________
 
            
(1)
  
On and prior to the first
  
Distribution
  
Date on which the
  
Optional
  
Termination
  
for Loan Group 6 may
                 
occur.
    
        
(2)
  
After the first Distribution Date on which the Optional Termination
for Loan Group 6 may occur.
 
                  
Certificate Register:
  
The register maintained pursuant to Section 6.02(a) hereof.
 
                  
Class:
  
All Certificates bearing the same class designation as set forth in
the Preliminary Statement.
 
                  
Class 6-M-1
  
Principal
  
Payment
  
Amount:
  
For any
  
Distribution
  
Date on or after the Stepdown
  
Date and as long as a
Trigger
  
Event has not occurred with respect to such
  
Distribution
  
Date,
  
will be the amount,
  
if any, by which (x) the sum of (i) the
aggregate Class Principal
  
Balance of the Group 6 Senior
  
Certificates,
  
after giving effect to payments on such
  
Distribution Date and
(ii) the Class Principal
  
Balance of the Class 6-M-1
  
Certificates
  
immediately
  
prior to such Distribution Date exceeds (y) the lesser
of (A) the product of (i) 89.70%
  
and (ii) the
  
Aggregate
  
Loan Group Balance for Loan Group 6 for such
  
Distribution
  
Date and (B) the
amount, if any, by which (i) the
  
Aggregate Loan Group Balance for Loan Group 6 for such
  
Distribution
  
Date exceeds
  
(ii) 0.50% of the
Aggregate Loan Group Balance for Loan Group 6 as of the Initial
Cut-off Date.
 
                  
Class 6-M-2
  
Principal
  
Payment
  
Amount:
  
For any
  
Distribution
  
Date on or after the Stepdown
  
Date and as long as a
Trigger
  
Event has not occurred with respect to such
  
Distribution
  
Date,
  
will be the amount,
  
if any, by which (x) the sum of (i) the
aggregate Class Principal Balance of the Group 6 Senior
  
Certificates and Class 6-M-1
  
Certificates,
  
in each case, after giving effect
to payments on such Distribution Date and (ii) the Class Principal
  
Balance of the Class 6-M-2
  
Certificates
  
immediately prior to such
Distribution
  
Date exceeds
  
(y) the lesser of (A) the product of (i) 94.30% and (ii) the
  
Aggregate Loan Group Balance for Loan Group 6
for such
  
Distribution
  
Date and (B) the
  
amount,
  
if any,
  
by which
  
(i) the
  
Aggregate
  
Loan Group
  
Balance for Loan Group 6 for such
Distribution Date exceeds (ii) 0.50% of the Aggregate Loan Group
Balance for Loan Group 6 as of the Initial Cut-off Date.
 
                  
Class 6-M-3
  
Principal
  
Payment
  
Amount:
  
For any
  
Distribution
  
Date on or after the Stepdown
  
Date and as long as a
Trigger
  
Event has not occurred with respect to such
  
Distribution
  
Date,
  
will be the amount,
  
if any, by which (x) the sum of (i) the
aggregate Class Principal Balance of the Group 6 Senior
  
Certificates,
  
Class 6-M-1 and Class 6-M-2
  
Certificates,
  
in each case, after
giving effect to payments on such Distribution Date and (ii) the
Class Principal
  
Balance of the Class 6-M-3
  
Certificates
  
immediately
prior to such Distribution
  
Date exceeds (y) the lesser of (A) the product of (i) 97.70% and
(ii) the
  
Aggregate Loan Group Balance for
Loan Group 6 for such
  
Distribution
  
Date and (B) the amount,
  
if any, by which (i) the
  
Aggregate
  
Loan Group Balance for Loan Group 6
for such Distribution Date exceeds (ii) 0.50% of the Aggregate Loan
Group Balance for Loan Group 6 as of the Initial Cut-off Date.
 
                  
Class 6-M-4
  
Principal
  
Payment
  
Amount:
  
For any
  
Distribution
  
Date on or after the Stepdown
  
Date and as long as a
Trigger
  
Event has not occurred with respect to such
  
Distribution
  
Date,
  
will be the amount,
  
if any, by which (x) the sum of (i) the
aggregate Class Principal Balance of the Group 6 Senior
Certificates,
  
Class 6-M-1,
  
Class 6-M-2 and Class 6-M-3 Certificates,
  
in each
case, after giving effect to payments on such Distribution
  
Date and (ii) the Class Principal
  
Balance of the Class 6-M-4
  
Certificates
immediately prior to such
  
Distribution Date exceeds (y) the lesser of (A) the product of (i)
98.70% and (ii) the
  
Aggregate Loan Group
Balance for Loan Group 6 for such
  
Distribution
  
Date and (B) the amount,
  
if any, by which
  
(i) the
  
Aggregate
  
Loan Group Balance for
Loan Group 6 for such
  
Distribution
  
Date exceeds
  
(ii) 0.50%
  
of the
  
Aggregate
  
Loan Group Balance for Loan Group 6 as of the Initial
Cut-off Date.
 
             
     
Class 6-X Distributable Amount: With respect to any Distribution
Date and the Class 6-X
  
Certificates,
  
to the extent
of
  
any
  
Monthly
  
Excess
   
Cashflow
   
remaining
  
on
  
such
   
Distribution
   
Date
  
after
  
the
   
distribution
   
of
  
amounts
   
pursuant
  
to
Section 4.01(II)(d)(i)-(xi),
  
the sum of
  
(a) the
  
amount of
  
interest
  
accrued
  
during the
  
related
  
Accrual
  
Period on the
  
Class 6-X
Certificates
  
(as
  
described
  
in the
  
Preliminary
  
Statement)
  
and
  
(b) the
  
Overcollateralization
  
Release
  
Amount, 
 
if any,
  
for such
Distribution Date.
 
                  
Class 6-X
  
Notional Amount:
  
With respect to the Class 6-X
  
Certificates or REMIC III Regular Interest 6-X-IO and any
Distribution
  
Date, the aggregate of the
  
Uncertificated
  
Principal
  
Balances of the REMIC II
  
Regular
  
Interests LT1, LT2, LT3 and LT4
immediately
  
prior to such
  
Distribution
  
Date,
  
(which for clarification is equal to the Aggregate Loan Group
Balance for Loan Group 6
as of the first day of the related
  
Collection Period
  
(excluding any such Mortgage Loans that were subject to a Payoff,
  
the principal
of which was distributed on the Distribution Date preceding the
current Distribution Date)).
 
                  
Class A Certificates:
  
As set forth in the Preliminary Statement.
 
      
            
Class C-B Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Class C-B Credit Support
  
Depletion Date: The first
  
Distribution Date on which the aggregate Class Principal Balance
of the Class C-B Certificates has been or will be reduced to zero.
 
                  
Class C-B
  
Percentage:
  
With respect to any Distribution Date, the aggregate Class
Principal Balance of the Class C-B
Certificates
  
immediately prior to such Distribution Date divided by the
Aggregate
  
Groups 1-5
  
Collateral
  
Balance as of the first day
of the related
  
Collection
  
Period
  
(excluding
  
any such
  
Mortgage
  
Loans that were
  
subject to a Payoff,
  
the
  
principal
  
of which was
distributed on the Distribution Date preceding the current
Distribution Date).
 
                  
Class Interest
  
Shortfall:
  
With respect to any Distribution Date and Class of Group 1,
  
Group 2,
  
Group 3,
  
Group 4,
Group 5 and Class C-B
  
Certificates,
  
the amount by which the amount described in clause (i) of the
definition of Interest Distribution
Amount for such Class, exceeds the amount of interest actually
distributed on such Class on such Distribution Date.
 
                  
Class M Certificates:
  
The Class 6-M-1, Class 6-M-2, Class 6-M-3 and Class 6-M-4
Certificates.
 
    
              
Class Notional Amount:
  
The Class 6-X Notional Amount.
 
                  
Class
  
Principal
  
Balance:
  
With
  
respect to any
  
Class and
  
as to any date of
  
determination,
  
the
  
aggregate of the
Certificate Balances of all Certificates of such Class as of such
date.
 
                  
Class Unpaid
  
Interest
  
Amounts:
  
With
  
respect to any
  
Distribution
  
Date and
  
Class of
  
interest
  
bearing
  
Group 1,
Group 2,
  
Group 3, Group 4, Group 5 and Class C-B Certificates,
  
the amount by which the aggregate
  
Class Interest
  
Shortfalls for such
Class on prior
  
Distribution
  
Dates exceeds the amount distributed on such Class on prior
Distribution Dates pursuant to clause (ii) of
the definition of Interest Distribution Amount.
 
                  
Class Y Principal
  
Reduction Amounts:
  
For any Distribution
  
Date, the amounts by which the Uncertificated
  
Principal
Balances of the Class Y
  
Regular
  
Interests
  
will be reduced on such
  
Distribution
  
Date by the
  
allocation of Realized
  
Losses and the
distribution of principal, determined as described in Appendix A.
 
                  
Class Y Regular Interests:
  
The Class Y-1, Class Y-2, Class Y-3, Class Y-4 and Class Y-5
Regular Interests.
 
                  
Class Y-1
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Y-1 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Y-1 Regular Interest
on such Distribution Date.
 
                  
Class Y-1
  
Principal
  
Reduction Amount: The Class Y Principal
  
Reduction Amount for the Class Y-1 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Y-1 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Y-2
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Y-2 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Y-2 Regular Interest
on such Distribution Date.
 
                  
Class Y-2
  
Principal
  
Reduction Amount: The Class Y Principal
  
Reduction Amount for the Class Y-2 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Y-2 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Y-3
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Y-3 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Y-3 Regular Interest
on such Distribution Date.
 
                  
Class Y-3
  
Principal
  
Reduction Amount: The Class Y Principal
  
Reduction Amount for the Class Y-3 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Y-3 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Y-4
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Y-4 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Y-4 Regular Interest
on such Distribution Date.
 
                  
Class Y-4
  
Principal
  
Reduction Amount: The Class Y Principal
  
Reduction Amount for the Class Y-4 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Y-4 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Y-5
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Y-5 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Y-5 Regular Interest
on such Distribution Date.
 
                  
Class Y-5
  
Principal
  
Reduction Amount: The Class Y Principal
  
Reduction Amount for the Class Y-5 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Y-5 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Z Principal
  
Reduction Amounts:
  
For any Distribution
  
Date, the amounts by which the Uncertificated
  
Principal
Balances of the Class Z
  
Regular
  
Interests
  
will be reduced on such
  
Distribution
  
Date by the
  
allocation of Realized
  
Losses and the
distribution
  
of
  
principal,
  
which
  
shall be in each
  
case the
  
excess
  
of (A) the sum of
  
(x) the
  
excess
  
of the
  
REMIC I
  
Available
Distribution
  
Amount for the related
  
Group (i.e.
  
the "related
  
Group" for the Class Z-1
  
Regular
  
Interest is the Group 1 Loans,
  
the
"related Group" for the Class Z-2
  
Regular Interest is the Group 2 Loans, the "related Group" for the
Class Z-3 Regular Interest is the
Group 3 Loans,
  
the "related Group" for the Class Z-4
  
Regular Interest is the Group 4 Loans, and the "related Group" for
the Class Z-5
Regular
  
Interest is the Group 5 Loans)
  
exclusive of any Recoveries
  
included
  
therein over the amounts thereof
  
distributable
  
(i) in
respect of interest on such Class Z
  
Regular
  
Interest
  
and the related
  
Class Y
  
Regular
  
Interest and (ii) in the case of the Group 1
Loans, to the Class AR-L
  
Certificates
  
in respect of Component I thereof and (y) the amount of Realized
Losses
  
allocable to principal
for the related Group over (B) the Class Y Principal Reduction
Amount for the related Group.
 
                  
Class Z Regular Interests: The Class Z-1, Class Z-2, Class Z-3,
Class Z-4 and Class Z-5 Regular Interests.
 
                  
Class Z-1
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Z-1 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Z-1 Regular Interest
on such Distribution Date.
 
                  
Class Z-1
  
Principal
  
Reduction Amount: The Class Z Principal
  
Reduction Amount for the Class Z-1 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
      
            
Class Z-1 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Z-2
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Z-2 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Z-2 Regular Interest
on such Distribution Date.
 
          
        
Class Z-2
  
Principal
  
Reduction Amount: The Class Z Principal
  
Reduction Amount for the Class Z-2 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Z-2 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Z-3
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Z-3 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Z-3 Regular Interest
on such Distribution Date .
 
                  
Class Z-3
  
Principal
  
Reduction Amount: The Class Z Principal
  
Reduction Amount for the Class Z-3 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Z-3 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Z-4
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Z-4 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Z-4 Regular Interest
on such Distribution Date.
 
                  
Class Z-4
  
Principal
  
Reduction Amount: The Class Z Principal
  
Reduction Amount for the Class Z-4 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
                  
Class Z-4 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Class Z-5
  
Principal
  
Distribution
  
Amount: For any Distribution Date, the excess, if any, of the Class
Z-5 Principal
Reduction Amount for such
  
Distribution
  
Date over the principal portion of Realized Losses allocated to the
Class Z-5 Regular Interest
on such Distribution Date.
 
                  
Class Z-5
  
Principal
  
Reduction Amount: The Class Z Principal
  
Reduction Amount for the Class Z-5 Regular Interest as
determined pursuant to the provisions of the Appendix A.
 
             
     
Class Z-5 Regular Interest:
  
The uncertificated
  
undivided beneficial interest in REMIC I which constitutes a REMIC
I
Regular Interest and is entitled to distributions as set forth
herein.
 
                  
Clearing
  
Agency:
  
An
  
organization
  
registered as a "clearing
  
agency"
  
pursuant to
  
Section 17A
  
of the
  
Securities
Exchange Act of 1934, as amended,
  
which
  
initially
  
shall be DTC, the nominee of which is Cede & Co., as the
registered
  
Holder of the
Book Entry
  
Certificates.
  
The Clearing Agency shall at all times be a "clearing
  
corporation" as defined in Section 8 102(a)(5) of the
Uniform Commercial Code of the State of New York.
 
                  
Closing Date:
  
February 28, 2006.
 
                  
Code:
  
The Internal Revenue Code of 1986, as amended.
 
                  
Collection Account:
  
The accounts established and maintained by a Servicer in accordance
with Section 3.05.
 
                  
Collection
  
Period:
  
With respect to each
  
Distribution
  
Date,
  
the period
  
commencing on the second day of the month
preceding the month of the Distribution Date and ending on the
first day of the month of the Distribution Date.
 
                  
Commencement of Foreclosure:
  
The first official action required under local law to commence
foreclosure
  
proceedings
or to
  
schedule a trustee's
  
sale under a deed of trust,
  
including:
  
(i) in the case of a
  
mortgage,
  
any filing or service of process
necessary to commence an action to foreclose;
  
or (ii) in the case of a deed of trust, the posting,
  
publishing,
  
filing or delivery of
a notice of sale.
 
                  
Commission:
  
The U.S. Securities and Exchange Commission.
 
                  
Compensating
  
Interest Payment:
  
For any Distribution Date and the SPS Serviced Mortgage Loans, the
lesser of (i) the
aggregate
  
Servicing
  
Fee
  
payable
  
to SPS in
  
respect of the SPS
  
Serviced
  
Mortgage
  
Loans for such
  
Distribution
  
Date and
  
(ii) the
aggregate Prepayment Interest Shortfall allocable to Payoffs and
Curtailments with respect to the SPS Serviced Mortgage Loans.
 
                  
For any Distribution Date and the Wells Fargo Serviced Mortgage
Loans, the lesser of (i) the aggregate
  
Servicing Fee
payable to Wells
  
Fargo in respect of the Wells
  
Fargo
  
Serviced
  
Mortgage
  
Loans for such
  
Distribution
  
Date and
  
(ii) the
  
aggregate
Prepayment Interest Shortfall allocable to Payoffs and Curtailments
with respect to the Wells Fargo Serviced Mortgage Loans.
 
                  
For any Distribution Date and the Master Servicer, the Compensating
Interest Payment shall be equal to:
 
(a)
      
with respect to the SPS Serviced Mortgage Loans, the excess of (i)
the
  
Compensating
  
Interest Payment required to be remitted
         
by SPS for such Distribution Date over (ii) the
  
Compensating
  
Interest Payment actually remitted by SPS for such Distribution
         
Date;
 
(b)
      
with respect to the Wells Fargo Serviced
  
Mortgage Loans, the excess of (i) the
  
Compensating
  
Interest Payment required to be
         
remitted by Wells Fargo for such
  
Distribution
  
Date over (ii) the
  
Compensating
  
Interest Payment actually
  
remitted by Wells
         
Fargo for such Distribution Date; and
 
(c)
      
with respect to the
  
Countrywide
  
Serviced
  
Mortgage Loans,
  
the excess of (i) the Prepayment
  
Interest
  
Shortfall
  
Amount (as
   
      
defined in the Countrywide
  
Servicing
  
Agreement) required to be remitted by Countrywide on the Remittance
Date (as defined in
         
the
  
Countrywide
  
Servicing
  
Agreement) in the month of such
  
Distribution
  
Date over (ii) the amount of
  
Prepayment
  
Interest
         
Shortfall Amount (as defined in the Countrywide
  
Servicing
  
Agreement) actually remitted by Countrywide on the Remittance Date
         
(as defined in the Countrywide Servicing Agreement) in the month of
such Distribution Date.
 
     
             
Controlling
  
Person:
  
With respect to any Person,
  
any other Person who "controls"
  
such Person within the meaning of
the Securities Act.
 
                  
Cooperative
  
Corporation:
  
With respect to any Cooperative
  
Loan, the cooperative
  
apartment
  
corporation
  
that holds
legal title to the related
  
Cooperative
  
Property and grants
  
occupancy
  
rights to units therein to
  
stockholders
  
through
  
Proprietary
Leases or similar arrangements.
 
                  
Cooperative Lien Search: A search for (a) federal tax liens,
  
mechanics'
  
liens, lis pendens,
  
judgments of record or
otherwise
  
against (i) the
  
Cooperative
  
Corporation and (ii) the seller of the Cooperative Unit,
  
(b) filings of Financing
  
Statements
and (c) the deed of the Cooperative Property into the Cooperative
Corporation.
 
                  
Cooperative
  
Loan:
  
A
  
Mortgage
  
Loan
  
that is
  
secured
  
by a first
  
lien on and a
  
perfected
  
security
  
interest
  
in
Cooperative Shares and the related
  
Proprietary Lease granting exclusive rights to occupy the related
  
Cooperative Unit in the building
owned by the related Cooperative Corporation.
 
                  
Cooperative
  
Property:
  
With respect to any Cooperative
  
Loan, all real property and improvements
  
thereto and rights
therein and thereto owned by a Cooperative
  
Corporation
  
including without limitation the land,
  
separate dwelling units and all common
elements.
 
                  
Cooperative
  
Shares:
  
With respect to any Cooperative
  
Loan, the shares of stock issued by a Cooperative
  
Corporation
and allocated to a Cooperative Unit and represented by stock
certificates.
 
                  
Cooperative Unit: With respect to any Cooperative Loan, a specific
unit in a Cooperative Property.
 
                  
Corporate
  
Trust
  
Office:
  
With
  
respect
  
to the
  
Trustee,
  
the
  
designated
  
office
  
of the
  
Trustee
  
at which at any
particular
  
time its corporate
  
trust business with respect to this Agreement
  
shall be
  
administered,
  
which office at the date of the
execution of this Agreement is located at 60 Livingston
  
Avenue,
  
St. Paul,
  
Minnesota
  
55107,
  
Attention:
  
Corporate
  
Trust--Structured
Finance.
  
With respect to the Trust
  
Administrator,
  
the designated
  
office of the Trust
  
Administrator at which at any particular time
its corporate
  
trust business with respect to this Agreement shall be
  
administered,
  
which office at the date of the execution of this
Agreement is located at 9062 Old Annapolis Road, Columbia,
  
MD 21045,
  
Attention: CSFB ARMT 2006-1, except for purposes of Section 6.06
and certificate
  
transfer purposes,
  
such term shall mean the office or agency of the Trust
Administrator
  
located at Wells Fargo Bank,
N.A., 6th Street and Marquette Avenue, Minneapolis, Minnesota
  
55479, Attention: CSFB ARMT 2006-1.
 
                  
Countrywide:
  
Countrywide Home Loans Servicing LP, and its successors and
assigns.
 
                  
Countrywide
  
Serviced Mortgage Loans: The Mortgage Loans identified as such on
the Mortgage Loan Schedule,
  
for which
Countrywide is the applicable Designated Servicer.
 
                  
Countrywide
  
Reconstituted
  
Servicing Agreement:
  
That certain Reconstituted Servicing Agreement dated as of February
1, 2006 among DLJMC, Countrywide and the Master Servicer, and
acknowledged by the Trustee and the Trust Administrator.
 
                  
Countrywide
  
Underlying Servicing Agreement:
  
The "Servicing Agreement" referred to in the Countrywide
  
Reconstituted
Servicing Agreement.
 
                  
Current
  
Interest:
  
For any Class of Group 6 Certificates,
  
other than the Class 6-X
  
Certificates,
  
and Distribution
Date, the amount of interest
  
accruing at the applicable
  
Pass-Through Rate on the related Class Principal Balance of such
Class during
the related
  
Accrual Period;
  
provided,
  
that as to each Class of Group 6 Certificates
  
the Current
  
Interest shall be reduced by a pro
rata portion of any Interest
  
Shortfalls to the extent not covered by Monthly Excess
  
Interest;
  
provided,
  
that as to the
  
Class 6-A-1
Certificates
  
and on any
  
Distribution
  
Date the Current
  
Interest
  
shall be reduced by an amount of any Net Swap
  
Payments owed by the
Swap Counterparty and received by the Trust Administrator from the
Supplemental Interest Account on the related Swap Payment Date.
 
                  
Curtailment:
  
Any payment of principal on a Mortgage Loan, made by or on behalf
of the related Mortgagor,
  
other than
a Scheduled
  
Payment,
  
a prepaid Scheduled Payment or a Payoff,
  
which is applied to reduce the outstanding Stated Principal Balance
of
the Mortgage Loan.
 
      
            
Custodial
  
Agreement:
  
An
  
agreement,
  
dated as of the date
  
hereof,
  
among a
  
custodian,
  
the
  
Trustee and the Trust
Administrator,
  
pursuant to which such custodian
  
agrees to hold any of the documents or
  
instruments
  
referred to in
  
Section 2.01
  
of
this Agreement as agent for the Trustee.
  
As of the date hereof, the Custodian shall act pursuant to the
LaSalle Custodial Agreement.
 
                  
Custodian:
  
A custodian which is appointed
  
pursuant to a Custodial
  
Agreement.
  
Any Custodian so appointed shall act
as agent on behalf of the Trustee,
  
and shall be compensated by the Trust Administrator or as otherwise
  
specified therein.
  
Initially,
LaSalle shall serve as Custodian for all of the Mortgage Loans.
 
                  
Cut-off Date:
  
For any Initial
  
Mortgage
  
Loan,
  
the Initial
  
Cut-off Date.
  
For any
  
Subsequent
  
Mortgage
  
Loan, the
applicable Subsequent Cut-off Date.
 
                  
Cut-off Date Principal
  
Balance:
  
With respect to any Mortgage Loan, the Stated
  
Principal
  
Balance thereof as of the
close of business on the Cut-off Date.
 
                  
Data Remittance
  
Date: With respect to any
  
Distribution
  
Date and each Servicer,
  
the 10th calendar day of the month
in which such
  
Distribution
  
Date occurs,
  
or if such 10th day is not a Business Day, the Business Day
immediately
  
following such 10th
day .
 
                  
Debt Service Reduction:
  
With respect to a Mortgage Loan in Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4
or Loan Group 5, a reduction by a court of competent
  
jurisdiction in a proceeding
  
under the Bankruptcy Code in the Scheduled
  
Payment
for such Mortgage
  
Loan which became final and non
  
appealable,
  
except such a reduction
  
resulting
  
from a Deficient
  
Valuation or any
reduction that results in a permanent forgiveness of principal.
 
                  
Debt Service Reduction Mortgage Loan:
  
Any Mortgage Loan that became the subject of a Debt Service
Reduction.
 
                  
Deficient Valuation:
  
With respect to any Mortgage Loan in Loan Group 1,
  
Loan Group 2, Loan Group 3, Loan Group 4 or
Loan Group 5, a valuation by a court of competent
  
jurisdiction of the Mortgaged
  
Property in an amount less than the then
  
outstanding
indebtedness under the Mortgage Loan, or that results in a
permanent
  
forgiveness of principal,
  
which valuation in either case results
from a proceeding under the Bankruptcy Code.
 
                  
Deferred
  
Amount:
  
For any Class of
  
Group 6 Subordinate
  
Certificates
  
(other than the Class 6-X
  
Certificates)
  
and
Class 6-A-2
  
Certificates
  
and
  
Distribution
  
Date,
  
will equal the amount by which
  
(x) the
  
aggregate
  
of the
  
Applied
  
Loss
  
Amounts
previously
  
applied in reduction of the Class Principal Balance thereof exceeds
(y) the sum of (i) the aggregate of amounts
  
previously
paid in reimbursement
  
thereof and (ii) amounts
  
added to the Class Principal Balances thereof pursuant to
  
Section 4.03(a)(ii) on
  
all
prior Distribution Dates, including such Distribution Date.
 
                  
Definitive Certificate:
  
As defined in Section 6.07.
 
                  
Deleted Mortgage Loan: As defined in Section 2.03.
 
                  
Delinquency Rate: With respect to any Distribution
  
Date, the fraction,
  
expressed as a percentage,
  
the numerator of
which is the aggregate 
 
outstanding
  
principal balance of all Mortgage Loans in Loan Group 6 60 or more
days delinquent
  
(including all
foreclosures
  
and REO
  
Properties)
  
as of the close of
  
business
  
on the last day of such month,
  
and the
  
denominator
  
of which is the
Aggregate Loan Group Balance for Loan Group 6 as of the close of
business on the last day of such month.
 
                  
Denomination:
  
With
  
respect
  
to each
  
Certificate,
  
the
  
amount
  
set
  
forth
  
on the
  
face
  
thereof
  
as the
  
"Initial
Certificate
  
Balance of this
  
Certificate" or the "Initial
  
Notional Amount of this
  
Certificate" or, if neither of the foregoing,
  
the
Percentage Interest appearing on the face thereof.
 
                  
Deposit Amount:
  
As defined in Section 4.10(e) or Section 4.11(e) herein, as
applicable.
 
                  
Depositor:
  
Credit
  
Suisse First Boston
  
Mortgage
  
Securities
  
Corp.,
  
a Delaware
  
corporation,
  
or its
  
successor in
interest.
 
                  
Depository
  
Agreement:
  
The Letter of Representation dated as of the Closing Date by and
among DTC, the Depositor and
the Trust Administrator for the benefit of the Trustee.
 
                  
Designated
  
Mortgage Loans:
  
The
  
Countrywide
  
Serviced
  
Mortgage
  
Loans,
  
unless any such Mortgage Loan is no longer
serviced by Countrywide under the Countrywide Servicing Agreement.
 
                  
Designated Servicer:
  
Countrywide.
 
                  
Designated Servicing Agreement:
  
The Countrywide Reconstituted Servicing Agreement.
 
                  
Determination
  
Date: With respect to each Distribution Date and (i) each Servicer
(other than Wells Fargo),
  
the 10th
day of the
  
calendar
  
month in which such
  
Distribution
  
Date
  
occurs
  
or, if such 10th day is not a Business
  
Day,
  
the
  
Business
  
Day
immediately
  
succeeding
  
such Business Day and (ii) Wells
  
Fargo,
  
the Business Day
  
immediately
  
preceding the related Cash Remittance
Date.
 
                  
Disqualified
  
Organization:
  
Any organization defined as a "disqualified
  
organization" under
  
Section 860E(e)(5)
  
of
the Code, which includes any of the following:
  
(i) the United States, any State or political
  
subdivision
  
thereof,
  
any possession of
the United States, or any agency or instrumentality
  
of any of the foregoing (other than an
  
instrumentality
  
which is a corporation if
all of its
  
activities
  
are subject to tax and,
  
except for the FHLMC,
  
a majority of its board of
  
directors
  
is not
  
selected by such
governmental
  
unit),
  
(ii) a
  
foreign
  
government,
  
any
  
international
  
organization,
  
or any agency or
  
instrumentality
  
of any of the
foregoing,
  
(iii) any
  
organization
  
(other than certain
  
farmers'
  
cooperatives
  
described in Section 521 of the Code) which is exempt
from the tax imposed by Chapter 1 of the Code
  
(including
  
the tax imposed by
  
Section 511
  
of the Code on unrelated
  
business
  
taxable
income),
  
(iv) rural
  
electric and telephone
  
cooperatives
  
described in
  
Section 1381(a)(2)(C)
  
of the Code,
  
(v) an
  
"electing
  
large
partnership"
  
within the meaning of Section 775 of the Code, and (vi) any other
Person so designated by the Trust
  
Administrator
  
based
upon an Opinion of Counsel that the holding of an Ownership
  
Interest in a Residual
  
Certificate
  
by such Person may cause the REMIC or
any Person
  
having an Ownership
  
Interest in any Class of
  
Certificates
  
(other than such Person) to incur a liability
  
for any federal
tax
  
imposed
  
under the Code that
  
would not
  
otherwise
  
be
  
imposed
  
but for the
  
Transfer
  
of an
  
Ownership
  
Interest
  
in a
  
Residual
Certificate to such Person.
  
The terms "United States," "State" and "international
  
organization"
  
shall have the meanings set forth in
Section 7701 of the Code or successor provisions.
 
                  
Distribution
  
Date:
  
The 25th
  
day of any
  
month,
  
or if such
  
25th
  
day is not a
  
Business
  
Day,
  
the
  
Business
  
Day
immediately following such 25th day, commencing in March 2006.
 
                  
DLJMC:
  
DLJ Mortgage Capital, Inc., a Delaware corporation, and its
successors and assigns.
 
                  
DTC:
  
The Depository Trust Company.
 
        
          
Due Date: With respect to each Mortgage Loan and any Distribution
  
Date, the date on which Scheduled Payments on such
Mortgage Loan are due which is either the first day of the month of
such Distribution
  
Date, or if Scheduled
  
Payments on such Mortgage
Loan are due on a day other than the first day of the month,
  
the date in the calendar
  
month
  
immediately
  
preceding the
  
Distribution
Date on which such Scheduled Payments are due, exclusive of any
days of grace.
 
                  
Eligible
  
Account:
  
Either
  
(i) an
  
account
  
or
  
accounts
  
maintained
  
with a federal or state
  
chartered
  
depository
institution
  
or trust
  
company
  
acceptable to the Rating
  
Agencies or (ii) an
  
account or accounts the deposits in which are insured by
the FDIC to the limits
  
established
  
by such
  
corporation,
  
provided
  
that any such
  
deposits not so insured
  
shall be maintained in an
account at a depository
  
institution or trust company whose
  
commercial
  
paper or other short term debt obligations (or, in the case of
a depository
  
institution or trust company which is the principal
  
subsidiary of a holding company, the commercial paper or other
short
term debt
  
obligations
  
of such holding
  
company) have been rated by each Rating Agency in its highest short
term rating
  
category,
  
or
(iii) a
  
segregated
  
trust account or accounts (which shall be a "special
  
deposit
  
account")
  
maintained
  
with the Trustee,
  
the Trust
Administrator or any other federal or state chartered depository
  
institution or trust company,
  
acting in its fiduciary capacity, in a
manner acceptable to the Trustee, the Trust Administrator and the
Rating Agencies.
  
Eligible Accounts may bear interest.
 
                  
Eligible
  
Institution:
  
An
  
institution
  
having the highest
  
short term debt rating,
  
and one of the two highest long
term debt ratings of the Rating Agencies or the approval of the
Rating Agencies.
 
                  
Eligible Investments:
  
Any one or more of the obligations and securities listed below:
 
1.
       
direct
  
obligations of, and obligations
  
fully guaranteed by, the United States of America,
  
or any agency or
  
instrumentality
         
of the
  
United
  
States of America
  
the
  
obligations
  
of which are backed by the full faith and credit of the United
  
States of
         
America; 
 
or obligations
  
fully guaranteed by, the United States of America;
  
the FHLMC,
  
FNMA, the Federal Home Loan Banks or
         
any agency or instrumentality of the United States of America rated
AA (or the equivalent) or higher by the Rating Agencies;
 
2. 
      
federal funds,
  
demand and time deposits in,
  
certificates of deposits of, or bankers'
  
acceptances
  
issued by, any depository
         
institution
  
or trust company
  
incorporated
  
or organized
  
under the laws of the United States of America or any state thereof
         
and subject to
  
supervision
  
and
  
examination
  
by federal
  
and/or state
  
banking
  
authorities,
  
so long as at the time of such
         
investment or contractual
  
commitment
  
providing for such investment the commercial paper or other short
term debt obligations
         
of such
  
depository
  
institution
  
or trust company (or, in the case of a depository
  
institution or trust company which is the
         
principal
  
subsidiary
  
of a holding
  
company,
  
the
  
commercial
  
paper or other
  
short term debt
  
obligations
  
of such
  
holding
         
company) are rated in one of two of the highest
  
ratings by each of the Rating
  
Agencies,
  
and the long term debt
  
obligations
         
of such
  
depository
  
institution
  
or trust company (or, in the case of a depository
  
institution or trust company which is the
         
principal
  
subsidiary of a holding
  
company,
  
the long term debt
  
obligations of such holding company) are rated in one of two
         
of the highest ratings, by each of the Rating Agencies;
 
3.
       
repurchase
  
obligations
  
with a term not to exceed 30 days with respect to any
  
security
  
described
  
in clause
  
(i) above
  
and
         
entered into with a depository
  
institution
  
or trust company
  
(acting as a principal)
  
in the highest
  
rated
  
category by the
         
Rating Agencies;
  
provided,
  
however,
  
that collateral
  
transferred pursuant to such repurchase obligation must be of the
type
         
described in clause
  
(i) above and must (A) be valued daily at current
  
market price plus accrued
  
interest,
  
(B) pursuant
  
to
         
such
  
valuation,
  
be equal,
  
at all
  
times,
  
to 105% of the cash
  
transferred
  
by the
  
Trustee or the Trust
  
Administrator
  
in
         
exchange for such collateral,
  
and (C) be delivered to the Trustee or the Trust
  
Administrator or, if the Trustee or the Trust
         
Administrator,
  
as applicable,
  
is supplying the collateral,
  
an agent for the Trustee or the Trust
  
Administrator,
  
in such a
         
manner as to accomplish perfection of a security interest in the
collateral by possession of certificated securities;
 
4.
       
securities
  
bearing interest or sold at a discount issued by any corporation
  
incorporated under the laws of the United States
         
of America or any state thereof which has a long term unsecured
debt rating in the highest
  
available
  
rating category of each
         
of the Rating Agencies at the time of such investment;
 
5.
       
commercial
  
paper
  
having
  
an
  
original
  
maturity
  
of less
  
than 365 days and
  
issued by an
  
institution
  
having a short
  
term
         
unsecured debt rating in the highest
  
available rating category of each of the Rating Agencies that rates
such securities,
  
at
         
the time of such investment;
 
6.
       
a
  
guaranteed
  
investment
  
contract
  
approved
  
by each of the
  
Rating
  
Agencies
  
and issued by an
  
insurance
  
company or other
         
corporation
  
having a long term unsecured debt rating in the highest
  
available rating category of each of the Rating Agencies
         
at the time of such investment;
 
7.
       
money
  
market funds (which may be 12b-1 funds as
  
contemplated
  
under the rules
  
promulgated
  
by the
  
Securities
  
and Exchange
         
Commission
  
under the Investment
  
Company Act of 1940) having ratings in the highest
  
available rating category of Moody's and
         
rated
  
"AAAm" or
  
"AAAm-G"
  
by S&P at the time of such
  
investment
  
(any such money
  
market
  
funds
  
which
  
provide
  
for demand
         
withdrawals
  
being
  
conclusively
  
deemed to satisfy any maturity
  
requirements
  
for
  
Eligible 
 
Investments
  
set forth
  
herein)
         
including money market funds of the Master Servicer,
  
a Servicer,
  
the Trustee or the Trust
  
Administrator
  
and any such funds
         
that are managed by the Master Servicer,
  
a Servicer,
  
the Trustee or the Trust
  
Administrator or their respective
  
Affiliates
         
or for the Master
  
Servicer,
  
a
  
Servicer,
  
the Trustee or the Trust
  
Administrator
  
or any
  
Affiliate
  
of such Person acts as
         
advisor, as long as such money market funds satisfy the criteria of
this subparagraph 7; and
 
8.
       
such other
  
investments
  
the investment in which will not, as evidenced by a letter from
each of the Rating
  
Agencies,
  
result
         
in the downgrading or withdrawal of the Ratings of the
Certificates;
 
         
provided,
  
however,
  
that no such instrument shall be an Eligible
  
Investment if such instrument
  
evidences either (i) a right
         
to receive only interest
  
payments with respect to the obligations
  
underlying
  
such
  
instrument,
  
or (ii) both
  
principal and
         
interest
  
payments
  
derived from obligations
  
underlying such instrument and the principal and interest
  
payments with respect
         
to such
  
instrument
  
provide a yield to
  
maturity
  
of greater
  
than 120% of the yield to
  
maturity
  
at par of such
  
underlying
         
obligations.
 
                  
ERISA:
  
The Employee Retirement Income Security Act of 1974, as amended.
 
                  
ERISA-Qualifying
  
Underwriting:
  
A best efforts or firm commitment
  
underwriting or private
  
placement that meets the
requirements (without regard to the ratings requirements) of an
Underwriter's Exemption.
 
                  
ERISA Restricted Certificate:
  
As set forth in the Preliminary Statement.
 
                  
Escrow Account:
  
The separate account or accounts created and maintained by a
Servicer pursuant to Section 3.06.
 
                  
Escrow
  
Payments:
  
With
  
respect to any
  
Mortgage
  
Loan,
  
the amounts
  
constituting
  
ground
  
rents,
  
taxes,
  
mortgage
insurance
  
premiums,
  
fire and hazard
  
insurance
  
premiums,
  
and any other
  
payments
  
required to be escrowed by the Mortgagor with the
mortgagee pursuant to the Mortgage, applicable law or any other
related document.
 
                  
Event of Default:
  
As defined in Section 8.01 hereof.
 
       
           
Excess Loss:
  
The amount of any
  
(i) Fraud
  
Loss in excess of the Fraud Loss
  
Coverage
  
Amount on a Mortgage
  
Loan in
Loan
  
Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4 or Loan Group 5 realized
  
after the Fraud Loss
  
Coverage
  
Termination
  
Date,
(ii) Special
  
Hazard Loss in excess of the Special Hazard Loss Coverage Amount on
a Mortgage Loan in Loan Group 1,
  
Loan Group 2,
  
Loan
Group 3,
  
Loan Group 4 or Loan Group 5 realized after the Special Hazard
Coverage
  
Termination Date or (iii) Bankruptcy
  
Loss in excess
of the Bankruptcy Loss Coverage
  
Amount on a Mortgage Loan in Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4 or Loan Group 5
realized after the Bankruptcy Coverage Termination Date.
 
                  
Exchange Act:
  
The Securities Exchange Act of 1934, as amended, and the rules and
regulations thereunder.
 
                  
Expense Fee Rate: As to each Mortgage Loan, the sum of the related
  
Servicing Fee Rate, the Trust
  
Administrator
  
Fee
Rate,
  
if
  
applicable,
  
and the rate at which the
  
premium on a Lender
  
Paid
  
Mortgage
  
Guaranty
  
Insurance
  
Policy is
  
calculated,
  
if
applicable.
 
                  
Expense Fees:
  
As to each
  
Mortgage
  
Loan and
  
Distribution
  
Date,
  
the sum of the related
  
Servicing
  
Fee, the Trust
Administrator Fee, if applicable, and any premium on any Lender
Paid Mortgage Guaranty Insurance Policy, if applicable.
 
                  
FDIC:
  
The Federal Deposit Insurance Corporation, or any successor
thereto.
 
                  
FHLMC:
  
The Federal Home Loan Mortgage
  
Corporation,
  
a corporate
  
instrumentality
  
of the United States
  
created and
existing under Title III of the Emergency Home Finance Act of 1970,
as amended, or any successor thereto.
 
                  
Financing Statement: A financing statement,
  
as applicable,
  
filed pursuant to the Uniform Commercial Code to perfect
a security interest in the Cooperative Shares and Pledge
Instruments.
 
                  
FNMA: The Federal National Mortgage
  
Association,
  
a federally
  
chartered and privately owned
  
corporation
  
organized
and existing under the Federal National Mortgage Association
Charter Act, or any successor thereto.
 
                  
Form 8-K Disclosure Information:
  
As defined in Section 13.04.
 
                  
Formula
  
Rate:
  
With
  
respect to the
  
Class 6-A-1
  
Certificates,
  
the per annum rate set forth or
  
calculated
  
in the
manner
  
described in the
  
Preliminary
  
Statement.
  
Interest on the Class 6-A-1
  
Certificates
  
(to the extent it is entitled to interest
from Loan
  
Group 6)
  
will be
  
computed on the basis of a 360-day
  
year and the actual
  
number of days
  
elapsed in the
  
related
  
Accrual
Period.
  
On any Swap
  
Payment
  
Date on which
  
there
  
has
  
occurred
  
a Swap
  
Suspension
  
Event,
  
the
  
Formula
  
Rate for the
  
Class 6-A-1
Certificates
  
on the
  
related
  
Distribution
  
Date
  
will be the
  
lesser
  
of
  
(a) the
  
sum of the
  
applicable
  
Certificate
  
Index and the
applicable Certificate Margin for such Distribution Date and (b)
the Net Funds Cap.
 
                  
Fraud Loan: A Liquidated Mortgage Loan in Loan Group 1,
  
Loan Group 2,
  
Loan Group 3, Loan Group 4 or Loan Group 5 as
to which a Fraud Loss has occurred.
 
                  
Fraud Loss
  
Coverage
  
Amount:
  
The
  
aggregate
  
amount of Fraud
  
Losses
  
that are
  
allocated
  
solely to the
  
Class C-B
Certificates,
  
as of the Closing Date,
  
$21,401,098.89,
  
subject to reduction from time to time by the amount of Fraud
Losses allocated
to the Class C-B
  
Certificates.
  
In addition,
  
(a) on each
  
anniversary
  
prior to the fifth
  
anniversary of the Cut-off Date, the Fraud
Loss Coverage Amount will be reduced to an amount equal to the
lesser of (A) 1.00% of the Aggregate
  
Groups 1-5
  
Collateral
  
Balance as
of such date,
  
and (B) the excess of the Fraud Loss
  
Coverage
  
Amount as of the
  
preceding
  
anniversary
  
of the
  
Cut-off
  
Date over the
cumulative
  
amount of Fraud Losses on the Mortgage
  
Loans in Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4 and Loan Group 5
allocated to the Class C-B
  
Certificates since such preceding
  
anniversary or the Cut-off Date, and (b) on the fifth anniversary
of the
Cut-off Date,
  
zero.
  
The Fraud Loss Coverage
  
Amount may be reduced
  
below the amount set forth above for any
  
Distribution
  
Date with
the consent of the Rating
  
Agencies as evidenced by a letter of each Rating
  
Agency to the Trust
  
Administrator
  
to the effect that any
such reduction will not result in a downgrading of the current
ratings assigned to such Classes of Certificates rated by it.
 
                  
Fraud Loss Coverage
  
Termination
  
Date: The point in time at which the applicable Fraud Loss Coverage
Amount has been
reduced to zero.
 
                  
Fraud Losses:
  
Realized Losses on the Liquidated
  
Mortgage Loans in Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan
Group 4 and Loan Group 5 as to which a loss is sustained by reason
of a default
  
arising from fraud,
  
dishonesty
  
or
  
misrepresentation
in
  
connection
  
with the
  
related
  
Mortgage
  
Loan,
  
including a loss by reason of the denial of
  
coverage
  
under any
  
related
  
Mortgage
Guaranty Insurance Policy because of such fraud, dishonesty or
misrepresentation.
 
                  
Gross Margin:
  
With respect to any Mortgage Loan, the fixed percentage
  
amount set forth in the related Mortgage Note
and the
  
Mortgage
  
Loan
  
Schedule
  
that is added to the Index on each
  
Adjustment
  
Date in
  
accordance
  
with the
  
terms of the
  
related
Mortgage Note to determine the new Mortgage Rate for such Mortgage
Loan.
 
                  
Group: When used with respect to the Mortgage Loans, any of Loan
Group 1,
  
Loan Group 2,
  
Loan Group 3, Loan Group 4,
Loan
  
Group 5 or Loan
  
Group 6, or with
  
respect
  
to the
  
Certificates,
  
the
  
Class or
  
Classes
  
of
  
Certificates
  
that
  
relate
  
to the
corresponding Group or Groups.
 
                  
Group 1:
  
With respect to the Mortgage Loans,
  
the pool of adjustable rate Mortgage Loans
  
identified in the Mortgage
Loan Schedule as having been assigned to Group 1 or with respect to
the
  
Certificates,
  
the Group 1
  
Certificates
  
(as specified in the
Preliminary Statement).
 
  
                
Group 1 Senior Liquidation
  
Amount:
  
With respect to any Distribution Date, the aggregate,
  
for each Mortgage Loan in
Loan Group 1
  
which
  
became a
  
Liquidated
  
Mortgage
  
Loan during the prior
  
calendar
  
month,
  
of the lesser of (i) the
  
Group 1
  
Senior
Percentage
  
of the Stated
  
Principal
  
Balance of such
  
Mortgage
  
Loan and
  
(ii) the
  
applicable
  
Senior
  
Prepayment
  
Percentage
  
of the
Liquidation Principal with respect to such Mortgage Loan.
 
                  
Group 1
  
Senior
  
Percentage: 
 
With respect to any
  
Distribution
  
Date,
  
the
  
percentage
  
equivalent of a fraction the
numerator of which is the aggregate Class Principal
  
Balance of the Group 1
  
Certificates
  
immediately
  
prior to such Distribution Date
and the
  
denominator of which is the aggregate of the Stated
  
Principal
  
Balances of the Mortgage Loans in Loan Group 1 as of the first
day of the related
  
Collection Period
  
(excluding any Group 1 Mortgage Loans that were subject to a
Payoff,
  
the principal of which was
distributed on the Distribution Date preceding the current
Distribution Date);
  
provided,
  
however, in no event will the Group 1 Senior
Percentage exceed 100%.
 
                  
Group 1 Senior
  
Principal
  
Distribution
  
Amount:
  
With respect to any
  
Distribution
  
Date, the sum of (i) the Group 1
Senior Percentage of the Principal Payment Amount for Loan Group 1,
  
(ii) the applicable Senior Prepayment
  
Percentage of the Principal
Prepayment Amount for Loan Group 1, and (iii) the Group 1 Senior
Liquidation Amount.
 
        
          
Group 1 Subordinate Percentage:
  
For any Distribution Date, the excess of 100% over the Group 1
Senior Percentage.
 
                  
Group 2:
  
With respect to the Mortgage Loans,
  
the pool of adjustable rate Mortgage Loans
  
identified in the Mortgage
Loan Schedule as having been assigned to Group 2 or with respect to
the
  
Certificates,
  
the Group 2
  
Certificates
  
(as specified in the
Preliminary Statement).
 
                  
Group 2 Senior Liquidation
  
Amount:
  
With respect to any Distribution Date, the aggregate,
  
for each Mortgage Loan in
Loan Group 2
  
which
  
became a
  
Liquidated
  
Mortgage
  
Loan during the prior
  
calendar
  
month,
  
of the lesser of (i) the
  
Group 2
  
Senior
Percentage
  
of the Stated
  
Principal
  
Balance of such
  
Mortgage
  
Loan and
  
(ii) the
  
applicable
  
Senior
  
Prepayment
  
Percentage
  
of the
Liquidation Principal with respect to such Mortgage Loan.
 
                  
Group 2
  
Senior
  
Percentage:
  
With respect to any
  
Distribution
  
Date,
  
the
  
percentage
  
equivalent of a fraction the
numerator of which is the aggregate Class Principal
  
Balance of the Group 2
  
Certificates
  
immediately
  
prior to such Distribution Date
and the
  
denominator of which is the aggregate of the Stated
  
Principal
  
Balances of the Mortgage Loans in Loan Group 2 as of the first
day of the related
  
Collection Period
  
(excluding any Group 2 Mortgage Loans that were subject to a
Payoff,
  
the principal of which was
distributed on the Distribution Date preceding the current
Distribution Date);
  
provided,
  
however, in no event will the Group 2 Senior
Percentage exceed 100%.
 
                  
Group 2 Senior
  
Principal
  
Distribution
  
Amount:
  
With respect to any
  
Distribution
  
Date, the sum of (i) the Group 2
Senior Percentage of the Principal Payment Amount for Loan Group 2,
  
(ii) the applicable Senior Prepayment
  
Percentage of the Principal
Prepayment Amount for Loan Group 2, and (iii) the Group 2 Senior
Liquidation Amount.
 
                  
Group 2 Subordinate Percentage:
  
For any Distribution Date, the excess of 100% over the Group 2
Senior Percentage.
 
                  
Group 3:
  
With respect to the Mortgage Loans,
  
the pool of adjustable rate Mortgage Loans
  
identified in the Mortgage
Loan Schedule as having been assigned to Group 3 or with respect to
the
  
Certificates,
  
the Group 3
  
Certificates
  
(as specified in the
Preliminary Statement).
 
                  
Group 3 Senior Liquidation
  
Amount:
  
With respect to any Distribution Date, the aggregate,
  
for each Mortgage Loan in
Loan Group 3
  
which
  
became a
  
Liquidated
  
Mortgage
  
Loan during the prior
  
calendar
  
month,
  
of the lesser of (i) the
  
Group 3
  
Senior
Percentage
  
of the Stated
  
Principal
  
Balance of such
  
Mortgage
  
Loan and
  
(ii) the
  
applicable
  
Senior
  
Prepayment
  
Percentage
  
of the
Liquidation Principal with respect to such Mortgage Loan.
 
                  
Group 3
  
Senior
  
Percentage:
  
With respect to any
  
Distribution
  
Date,
  
the
  
percentage
  
equivalent of a fraction the
numerator of which is the aggregate Class Principal
  
Balance of the Group 3
  
Certificates
  
immediately
  
prior to such Distribution Date
and the denominator of which is the aggregate of the Stated
Principal
  
Balances of the Mortgage Loans in Loan Group 3,
  
as of the first
day of the related
  
Collection
  
Period
  
(excluding
  
any such Mortgage
  
Loans that were subject to a Payoff,
  
the principal of which was
distributed on the Distribution Date preceding the current
Distribution Date);
  
provided,
  
however, in no event will the Group 3 Senior
Percentage exceed 100%.
 
                  
Group 3 Senior
  
Principal
  
Distribution
  
Amount:
  
With respect to any
  
Distribution
  
Date, the sum of (i) the Group 3
Senior Percentage of the Principal Payment Amount for Loan Group 3,
  
(ii) the applicable Senior Prepayment
  
Percentage of the Principal
Prepayment Amount for Loan Group 3, and (iii) the Group 3 Senior
Liquidation Amount.
 
                  
Group 3 Subordinate Percentage:
  
For any Distribution Date, the excess of 100% over the Group 3
Senior Percentage.
 
                  
Group 4:
  
With respect to the Mortgage Loans,
  
the pool of adjustable rate Mortgage Loans
  
identified in the Mortgage
Loan Schedule as having been assigned to Group 4 or with respect to
the
  
Certificates,
  
the Group 4
  
Certificates
  
(as specified in the
Preliminary Statement).
 
       
           
Group 4 Senior Liquidation
  
Amount:
  
With respect to any Distribution Date, the aggregate,
  
for each Mortgage Loan in
Loan Group 4
  
which
  
became a
  
Liquidated
  
Mortgage
  
Loan during the prior
  
calendar
  
month,
  
of the lesser of (i) the
  
Group 4
  
Senior
Percentage
  
of the Stated
  
Principal
  
Balance of such
  
Mortgage
  
Loan and
  
(ii) the
  
applicable
  
Senior
  
Prepayment
  
Percentage
  
of the
Liquidation Principal with respect to such Mortgage Loan.
 
                  
Group 4
  
Senior
  
Percentage:
  
With respect to any
  
Distribution
  
Date,
  
the
  
percentage
  
equivalent of a fraction the
numerator of which is the aggregate Class Principal
  
Balance of the Group 4
  
Certificates
  
immediately
  
prior to such Distribution Date
and the denominator of which is the aggregate of the Stated
Principal
  
Balances of the Mortgage Loans in Loan Group 4,
  
as of the first
day of the related
  
Collection
  
Period
  
(excluding
  
any such Mortgage
  
Loans that were subject to a Payoff,
  
the principal of which was
distributed on the Distribution Date preceding the current
Distribution Date);
  
provided,
  
however, in no event will the Group 4 Senior
Percentage exceed 100%.
 
                  
Group 4 Senior
  
Principal
  
Distribution
  
Amount:
  
With respect to any
  
Distribution
  
Date, the sum of (i) the Group 4
Senior Percentage of the Principal Payment Amount for Loan Group 4,
  
(ii) the applicable Senior Prepayment
  
Percentage of the Principal
Prepayment Amount for Loan Group 4, and (iii) the Group 4 Senior
Liquidation Amount.
 
             
     
Group 4 Subordinate Percentage:
  
For any Distribution Date, the excess of 100% over the Group 4
Senior Percentage.
 
                  
Group 5: With respect to the Mortgage Loans,
  
the pool of adjustable
  
rate Mortgage Loans
  
identified in the Mortgage
Loan Schedule as having been assigned to Group 5 or with respect to
the
  
Certificates,
  
the Group 5
  
Certificates
  
(as specified in the
Preliminary Statement).
 
                  
Group 5 Senior Liquidation
  
Amount:
  
With respect to any Distribution Date, the aggregate,
  
for each Mortgage Loan in
Loan
  
Group 5 which
  
became a
  
Liquidated
  
Mortgage
  
Loan
  
during the prior
  
calendar
  
month,
  
of the lesser of (i) the
  
Group 5 Senior
Percentage
  
of the Stated
  
Principal
  
Balance of such
  
Mortgage
  
Loan and
  
(ii) the
  
applicable
  
Senior
  
Prepayment
  
Percentage
  
of the
Liquidation Principal with respect to such Mortgage Loan.
 
                  
Group 5 Senior
  
Percentage:
  
With respect to any
  
Distribution
  
Date,
  
the
  
percentage
  
equivalent
  
of a fraction the
numerator of which is the aggregate Class Principal
  
Balance of the Group 5 Certificates
  
immediately
  
prior to such
  
Distribution Date
and the denominator of which is the aggregate of the Stated
  
Principal
  
Balances of the Mortgage Loans in Loan Group 5, as of the first
day of the related
  
Collection
  
Period
  
(excluding
  
any such Mortgage
  
Loans that were subject to a Payoff,
  
the principal of which was
distributed on the Distribution Date preceding the current
Distribution Date);
  
provided,
  
however, in no event will the Group 5 Senior
Percentage exceed 100%.
 
                  
Group 5 Senior
  
Principal
  
Distribution
  
Amount:
  
With respect to any
  
Distribution
  
Date, the sum of (i) the Group 5
Senior Percentage of the Principal Payment Amount for Loan Group 5,
(ii) the
  
applicable Senior Prepayment
  
Percentage of the Principal
Prepayment Amount for Loan Group 5, and (iii) the Group 5 Senior
Liquidation Amount.
 
                  
Group 5 Subordinate Percentage:
  
For any Distribution Date, the excess of 100% over the Group 5
Senior Percentage.
 
                  
Group 6: With respect to the Mortgage Loans,
  
the pool of adjustable
  
rate Mortgage Loans
  
identified in the Mortgage
Loan Schedule as having been assigned to Group 6 or with respect to
the Certificates, the Group 6 Certificates.
 
                  
Group 6 Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Group 6 Credit Support
  
Depletion Date: The first
  
Distribution
  
Date on which the aggregate Class Principal
  
Balance
of the Group 6 Subordinate Certificates has been or will be reduced
to zero.
 
                  
Group 6 Interest
  
Rate Cap Account:
  
The separate
  
Eligible
  
Account
  
created and
  
initially
  
maintained by the Trust
Administrator
  
pursuant
  
to
  
Section 4.10
  
in the 
 
name of the
  
Trust
  
Administrator
  
for the
  
benefit
  
of the
  
Certificateholders
  
and
designated
  
"Wells Fargo Bank,
  
N.A. in trust for
  
registered
  
holders of
  
Adjustable
  
Rate
  
Mortgage
  
Trust
  
2006-1,
  
Adjustable
  
Rate
Mortgage-Backed
  
Pass-Through
  
Certificates,
  
Series 2006-1, Group 6 Certificates" Funds in the Group 6 Interest
Rate Cap Account shall
be held in trust for the
  
Certificateholders
  
for the uses and
  
purposes
  
set forth in this
  
Agreement.
  
The Group 6 Interest
  
Rate Cap
Account
  
will not be an asset of any
  
REMIC.
  
Ownership
  
of the
  
Group 6
  
Interest
  
Rate Cap
  
Account
  
is
  
evidenced
  
by the
  
Class 6-X
Certificates.
 
                  
Group 6 Interest Rate Cap Agreement:
  
The interest rate cap agreement relating to the Group 6
Certificates consisting
of the ISDA Master
  
Agreement,
  
the
  
Schedule and the Credit
  
Support
  
Annex,
  
each dated as of the Closing Date and the
  
Confirmations
related thereto,
  
between the Trustee on behalf of the Trust and the Group 6 Interest
Rate Cap
  
Counterparty,
  
as such agreement may be
amended and
  
supplemented
  
in accordance
  
with its terms and any
  
replacement
  
Group 6 Interest
  
Rate Cap
  
Agreement
  
acceptable to the
Depositor and the Trustee.
 
                  
Group 6 Interest Rate Cap Counterparty:
  
Credit Suisse International,
  
or any successor in interest thereto under the
Group 6 Interest Rate Cap Agreement.
 
                  
Group 6 Senior Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Group 6 Senior
  
Enhancement
  
Percentage:
  
For any
  
Distribution
  
Date, the fraction,
  
expressed as a percentage,
  
the
numerator of which is the sum of the
  
aggregate
  
Class
  
Principal
  
Balance of the Class M
  
Certificates
  
and the
  
Overcollateralization
Amount (which,
  
for purposes of this 
 
definition
  
only,
  
shall not be less than zero),
  
in each case after giving effect to payments on
such Distribution
  
Date (assuming no Trigger Event has occurred),
  
and the denominator of which is the Aggregate Loan Group Balance
for
Loan Group 6 for such Distribution Date.
 
                  
Group 6 Senior Principal
  
Payment Amount:
  
For any
  
Distribution
  
Date on or after the Stepdown Date and as long as a
Trigger Event has not occurred with respect to such
  
Distribution
  
Date, will be the amount,
  
if any, by which (x) the
  
aggregate Class
Principal
  
Balance of the Group 6 Senior
  
Certificates,
  
immediately
  
prior to such Distribution Date exceeds (y) the lesser of (A) the
product of (i) 80.50% and (ii) the
  
Aggregate
  
Loan Group Balance for Loan Group 6 for such
  
Distribution
  
Date and (B) the amount,
  
if
any, by which (i) the
  
Aggregate
  
Loan Group Balance for Loan Group 6 for such
  
Distribution
  
Date exceeds
  
(ii) 0.50% of the Aggregate
Loan Group Balance for Loan Group 6 as of the Initial Cut-off Date.
 
                  
Group 6 Subordinate Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Index:
  
With respect to any Mortgage
  
Loan and each related
  
Adjustment
  
Date,
  
the index as specified in the related
Mortgage Note.
 
     
             
Indirect
  
Participants:
  
Entities,
  
such as banks,
  
brokers,
  
dealers
  
and trust
  
companies,
  
that
  
clear
  
through or
maintain a custodial relationship with a Participant, either
directly or indirectly.
 
                  
Initial Bankruptcy Loss Coverage Amount:
  
$362,954.80.
 
                  
Initial Class Principal Balance:
  
As set forth in the Preliminary Statement.
 
                  
Initial Cut-off Date:
  
February 1, 2006.
 
                  
Initial
  
Mortgage
  
Loans:
  
The
  
initial
  
Mortgage
  
Loans
  
conveyed
  
by the
  
Depositor
  
to the Trust Fund
  
pursuant to
Section 2.01 hereof on the Closing Date, which are listed on the
Mortgage Loan Schedule on such date.
 
                  
Insurance
  
Policy:
  
With respect to any Mortgage Loan
  
included in the Trust Fund,
  
any Mortgage
  
Guaranty
  
Insurance
Policy, any standard hazard insurance policy,
  
flood insurance policy or title insurance policy,
  
including all riders and endorsements
thereto in effect, including any replacement policy or policies for
any Insurance Policies.
 
                  
Insurance
  
Proceeds:
  
Proceeds of any primary mortgage guaranty insurance
  
policies,
  
including,
  
without limitation,
any other
  
Insurance
  
Policies with respect to the Mortgage
  
Loans,
  
to the extent such proceeds are not applied to the
  
restoration of
the related Mortgaged Property or released to the Mortgagor in
accordance with the related
  
Servicer's or Designated
  
Servicer's normal
servicing procedures.
 
                  
Interest
  
Determination
  
Date: With respect to the LIBOR
  
Certificates and for each Accrual Period,
  
the second LIBOR
Business Day preceding the commencement of such Accrual Period.
 
                  
Interest
  
Distribution Amount: With respect to any Distribution Date and
interest bearing Class of Group 1,
  
Group 2,
Group 3,
  
Group 4,
  
Group 5 and Class C-B
  
Certificates,
  
the sum of (i) one month's interest accrued during the related
Accrual Period
at the applicable
  
Pass-Through
  
Rate for such Class on the related Class Principal
  
Balance or
  
Class Notional
  
Amount, as applicable,
subject to reduction pursuant to Section 4.01(I)(B), and (ii) any
Class Unpaid Interest Amounts for such Class and Distribution Date.
 
                  
Interest
  
Remittance
  
Amount:
  
For any
  
Distribution
  
Date and the Mortgage Loans in Loan Group 6, an amount equal to
the sum of (1) all
  
interest
  
collected
  
(other than
  
Payaheads) or advanced in respect of Scheduled
  
Payments on the Mortgage Loans in
such Loan Group during the related Collection Period,
  
the interest portion of Payaheads
  
previously
  
received on the Mortgage Loans in
such Loan Group and intended
  
for
  
application
  
in the related
  
Collection
  
Period and
  
interest
  
portion of all Payoffs (net of Payoff
Interest for such Distribution
  
Date) and Curtailments
  
received on the Mortgage Loans in such Loan Group during the
related Prepayment
Period,
  
less (x) the applicable Expense Fees with respect to such Mortgage
Loans and
  
(y) unreimbursed
  
Advances and other amounts due
to the Master
  
Servicer,
  
the 
 
applicable
  
Servicer,
  
the Back-Up
  
Servicer and the Trust
  
Administrator
  
with respect to such Mortgage
Loans, to the extent
  
allocable to interest,
  
(2) all
  
Compensating
  
Interest
  
Payments paid by a Servicer with respect to the Mortgage
Loans in such Loan Group with
  
respect to the related
  
Prepayment
  
Period,
  
(3) the portion of any Substitution
  
Adjustment
  
Amount and
Purchase
  
Price
  
paid with
  
respect to the
  
Mortgage
  
Loans in such Loan
  
Group during
  
the
  
related
  
Collection
  
Period,
  
in each case
allocable to interest and the proceeds of any purchase of such
Mortgage Loans by the Terminating
  
Entity pursuant to
  
Section 11.01
  
in
an amount not exceeding the interest
  
portion of the Par Value with respect to such Mortgage Loans,
  
(4) all Net
  
Liquidation
  
Proceeds
and
  
recoveries
  
(net of
  
unreimbursed
  
Advances,
  
Servicing
  
Advances and expenses,
  
to the extent
  
allocable to interest,
  
and unpaid
Expense Fees),
  
if any,
  
collected with respect to the Mortgage Loans in such Loan Group
during the prior calendar month, to the extent
allocable to interest and (5) the Capitalized Interest Distribution
for such Distribution Date.
 
                  
Interest
  
Shortfall:
  
For any
  
Distribution
  
Date and the
  
Mortgage
  
Loans in Loan
  
Group 6,
  
an amount
  
equal to the
aggregate
  
shortfall,
  
if any, in collections of interest (adjusted to the related Net
Mortgage Rate) on Mortgage Loans in Loan Group 6
resulting
  
from
  
(a) Principal
  
Prepayments
  
received
  
during the related
  
Prepayment
  
Period after giving
  
effect to the
  
Compensating
Interest Payment for such
  
Distribution
  
Date and (b) interest
  
payments on certain of the Mortgage Loans in Loan Group 6 being
limited
pursuant to the provisions of the Relief Act.
 
                  
LaSalle:
  
LaSalle Bank, National Association.
 
                  
LaSalle Bank Custodial
  
Agreement:
  
That certain Custodial Agreement dated as of February 1, 2006 among
LaSalle,
  
the
Trustee and the Trust Administrator.
 
                  
Lender Paid Mortgage Guaranty Insurance Policy:
  
Any lender paid Mortgage Guaranty Insurance Policy.
 
                  
LIBOR
  
Business
  
Day: Any day other than (i) a
  
Saturday or a Sunday or (ii) a day on which banking
  
institutions
  
in
the State of New York or in the City of London, England are
required or authorized by law to be closed.
 
                  
LIBOR Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Liquidated
  
Mortgage
  
Loan:
  
With
  
respect to any
  
Distribution
  
Date,
  
a
  
defaulted
  
Mortgage
  
Loan
  
(including 
 
any
REO Property) which was liquidated in the calendar month preceding
the month of such Distribution Date and as to which a Servicer,
  
has
determined
  
(with respect to the
  
Non-Designated
  
Mortgage Loans, in accordance with this Agreement,
  
or with respect to the Designated
Mortgage Loans, in accordance with the related Designated
  
Servicing
  
Agreement) that it has received all amounts it expects to receive
in connection with the liquidation of such Mortgage Loan,
  
including the final
  
disposition of the related
  
REO Property,
  
whether from
Insurance Proceeds, Liquidation Proceeds or otherwise.
 
                  
Liquidation
  
Expenses:
  
Customary
  
and
  
reasonable
  
"out of pocket"
  
expenses
  
incurred by a Servicer (or the related
Sub-Servicer)
  
in connection
  
with the
  
liquidation
  
of any defaulted
  
Mortgage Loan and not recovered by the related
  
Servicer (or the
related
  
Sub-Servicer)
  
under a Mortgage
  
Guaranty
  
Insurance
  
Policy for
  
reasons
  
other than such
  
Servicer's
  
failure to comply with
Section 3.09
  
hereof,
  
such expenses
  
including,
  
without
  
limitation,
  
legal fees and expenses,
  
any unreimbursed amount expended by a
Servicer
  
pursuant to
  
Section 3.11
  
hereof
  
respecting the related
  
Mortgage and any related and
  
unreimbursed
  
expenditures
  
for real
estate property taxes or for property
  
restoration or preservation to the extent not previously
  
reimbursed
  
under any hazard insurance
policy for reasons other than such Servicer's failure to comply
with Section 3.11 hereof.
 
                  
Liquidation
  
Principal:
  
With
  
respect
  
to any
  
Distribution
  
Date and a Loan
  
Group,
  
the
  
principal
  
portion of Net
Liquidation
  
Proceeds
  
received with respect to each Mortgage
  
Loan in that Loan Group,
  
but not in excess of the principal
  
balance of
such Mortgage Loan, which became a Liquidated
  
Mortgage Loan (but not in excess of the principal
  
balance thereof) during the preceding
calendar month, exclusive of the portion thereof, if any,
attributable to Assigned Prepayment Premiums.
 
                  
Liquidation
  
Proceeds:
  
Amounts,
  
including Insurance
  
Proceeds,
  
received in connection with the partial or complete
liquidation
  
of defaulted
  
Mortgage
  
Loans,
  
whether
  
through
  
trustee's
  
sale,
  
foreclosure
  
sale or otherwise or amounts
  
received in
connection
  
with any
  
condemnation
  
or partial
  
release of a
  
Mortgaged
  
Property
  
related
  
to a Mortgage
  
Loan and any other
  
proceeds
received in connection with an REO Property, other than Recoveries.
 
                  
Loan Group:
  
Any of Loan
  
Group 1,
  
Loan
  
Group 2,
  
Loan
  
Group 3,
  
Loan
  
Group 4,
  
Loan
  
Group 5 or Loan Group 6, as
applicable.
  
Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4 and Loan Group 5 together will constitute one
sub-trust and Loan
Group 6 will constitute another sub-trust.
 
                  
Loan Group 1:
  
All Mortgage Loans identified as Loan Group 1 Mortgage Loans on the
Mortgage Loan Schedule.
 
                  
Loan Group 2:
  
All Mortgage Loans identified as Loan Group 2 Mortgage Loans on the
Mortgage Loan Schedule.
 
  
                
Loan Group 3:
  
All Mortgage Loans identified as Loan Group 3 Mortgage Loans on the
Mortgage Loan Schedule.
 
                  
Loan Group 4:
  
All Mortgage Loans identified as Loan Group 4 Mortgage Loans on the
Mortgage Loan Schedule.
 
      
            
Loan Group 5:
  
All Mortgage Loans identified as Loan Group 5 Mortgage Loans on the
Mortgage Loan Schedule.
 
                  
Loan Group 6:
  
All Mortgage Loans identified as Loan Group 6 Mortgage Loans on the
Mortgage Loan Schedule.
 
          
        
Loan-to-Value
  
Ratio: As of any date, the fraction,
  
expressed as a percentage,
  
the numerator of which is the Stated
Principal
  
Balance of the related
  
Mortgage Loan at the date of
  
determination
  
and the
  
denominator of which is the Appraised Value of
the Mortgaged Property.
 
                  
Loss and Delinquency
  
Test: With respect to the SPS Mortgage
  
Loans,
  
SPS will fail the Loss and Delinquency
  
Test on
any date of determination as to which (i) the aggregate
  
outstanding
  
principal balance of the SPS Mortgage Loans delinquent 60 days or
more (including all related REO Properties and related
  
Mortgage Loans in foreclosure)
  
(averaged over the preceding six month period),
as a percentage of the aggregate
  
principal
  
balance of the SPS Mortgage 
 
Loans as of the first day of the month of such
  
determination
is equal to or greater than 50% or
  
(ii) cumulative
  
Realized
  
Losses for the SPS Mortgage Loans exceed
  
(a) with
  
respect to any month
prior to the third anniversary of the first Distribution 
 
Date, 20% of the aggregate
  
principal balance of the SPS Mortgage Loans as of
the
  
Closing
  
Date
  
(the
  
"Original
  
SPS
  
Mortgage
  
Loan
  
Principal
  
Balance"),
  
(b) with
  
respect
  
to any
  
month on or after the third
anniversary
  
but prior to the eighth
  
anniversary
  
of the first
  
Distribution
  
Date,
  
30% of the Original SPS Mortgage
  
Loan
  
Principal
Balance,
  
(c) with
  
respect
  
to any
  
month
  
on or after
  
the
  
eighth
  
anniversary
  
but
  
prior to the
  
ninth
  
anniversary
  
of the
  
first
Distribution
  
Date,
  
35% of the Original SPS
  
Mortgage
  
Loan
  
Principal
  
Balance,
  
(d) with
  
respect to any month on or after the ninth
anniversary
  
but prior to the tenth
  
anniversary
  
of the first
  
Distribution
  
Date,
  
40% of the Original SPS
  
Mortgage
  
Loan
  
Principal
Balance, 
 
(e) with
  
respect
  
to any
  
month on or after
  
the
  
tenth
  
anniversary
  
but
  
prior to the
  
eleventh
  
anniversary
  
of the first
Distribution
  
Date, 45% of the Original SPS Principal
  
Balance and (f) with
  
respect to any month on or after the eleventh
  
anniversary
of the first
  
Distribution
  
Date, 50% of the Original SPS Mortgage Loan Principal
  
Balance.
  
For purposes of this definition,
  
the term
"Realized Losses" shall not include Debt Service Reductions or
Deficient Valuations.
 
                  
Lost
  
Mortgage
  
Note:
  
Any Mortgage
  
Note the original of which was
  
permanently
  
lost or destroyed
  
and has not been
replaced.
 
                  
Majority
  
Servicer:
  
With respect to any Optional
  
Termination,
  
the Servicer
  
servicing
  
the largest
  
percentage
  
of
Mortgage Loans in the Loan Group(s) to be purchased in such
Optional
  
Termination (by Stated Principal Balance of outstanding
  
Mortgage
Loans on the Optional
  
Termination
  
Date) which has notified the Trust
  
Administrator of its intention to be the Terminating
  
Entity of
such Loan Group(s) pursuant to Section 11.02(a).
 
                  
Marker Rate:
  
With respect to the Class 6-X
  
Certificates
  
and REMIC II
  
Regular
  
Interests LT1, LT2, LT3 and LT4 and
any Distribution Date, a per annum rate equal to two (2) times the
weighted average of the Uncertificated
  
REMIC II
  
Pass-Through Rates
for REMIC II Regular Interest LT2 and REMIC II Regular Interest
LT3.
 
                  
Master Servicer:
  
Wells Fargo.
 
                  
Maturity Date:
  
The Distribution Date occurring in March 2036.
 
                  
Maximum Interest Rate: With respect to the Group 6 Certificates
  
and any
  
Distribution
  
Date, an annual rate equal to
the weighted
  
average of the Maximum
  
Mortgage Rates of the Mortgage Loans in Loan Group 6 minus the
weighted
  
average Expense Fee Rate
of the Mortgage Loans in Loan Group 6.
 
                  
Maximum
  
Mortgage Rate: With respect to each Mortgage Loan, the percentage
set forth in the related
  
Mortgage Note as
the maximum Mortgage Rate thereunder.
 
                  
MERS:
  
Mortgage Electronic
  
Registration
  
Systems,
  
Inc., a corporation
  
organized and existing under the laws of the
State of Delaware, or any successor thereto.
 
                  
MERS® Mortgage Loan:
  
Any Mortgage Loan registered with MERS on the MERS(R) System.
 
                  
MERS(R) System:
  
The system of recording transfers of mortgages electronically
maintained by MERS.
 
                  
MIN:
  
The mortgage identification number for any MERS Mortgage Loan.
 
                  
Minimum
  
Mortgage Rate: With respect to each Mortgage Loan, the percentage
set forth in the related
  
Mortgage Note as
the minimum Mortgage Rate thereunder.
 
                  
MOM Loan:
  
Any Mortgage
  
Loan as to which MERS is acting as mortgagee,
  
solely as nominee fro the
  
originator of such
Mortgage Loan and its successors and assigns.
 
                  
Monthly
  
Excess
  
Cashflow:
  
For any
  
Distribution
  
Date, an amount equal to the sum of the Monthly
  
Excess
  
Interest,
Overcollateralization
  
Release Amount,
  
if any for such date, and any Principal Payment Amount remaining
after the application of items
(i) through (v) in the distribution thereof pursuant to Section
4.01(II)(a), (b) or (c), as applicable.
 
                  
Monthly Excess Interest:
  
For any Distribution
  
Date, any Interest
  
Remittance Amount remaining after the application
of items (i) through (v) in the distribution thereof, pursuant to
Section 4.01(II)(a).
 
                  
Moody's:
  
Moody's Investors Service, Inc. or any successor thereto.
 
                  
Mortgage:
  
With respect to a Mortgage Loan, the mortgage,
  
deed of trust or other instrument creating a first lien on
a fee simple or leasehold estate securing a Mortgage Note.
 
                  
Mortgaged
  
Property:
  
The underlying real property
  
securing a Mortgage Loan or, with respect to a Cooperative
  
Loan,
the related Cooperative Shares and Proprietary Lease.
 
                  
Mortgage File:
  
For each Mortgage Loan, the Trustee Mortgage File and the Servicer
Mortgage File.
 
    
              
Mortgage Guaranty
  
Insurance Policy:
  
Each policy of primary mortgage
  
guaranty
  
insurance or any replacement
  
policy
therefor with respect to any Mortgage Loan.
 
                  
Mortgage
  
Loans:
  
Such of the mortgage loans and cooperative 
 
loans (if any)
  
transferred and assigned to the Trustee
pursuant
  
to the
  
provisions
  
hereof
  
as from time to time are held as a part of the
  
Trust
  
Fund
  
(including
  
any
  
REO Property),
  
the
mortgage loans so held being
  
identified in the Mortgage Loan Schedule,
  
notwithstanding
  
foreclosure or other
  
acquisition of title of
the related
  
Mortgaged
  
Property.
  
With
  
respect to each
  
Mortgage
  
Loan that is a
  
Cooperative
  
Loan,
  
if any,
  
"Mortgage
  
Loan" shall
include,
  
but not be limited
  
to, the
  
related 
 
Mortgage
  
Note,
  
Security
  
Agreement,
  
Assignment
  
of
  
Proprietary
  
Lease,
  
Recognition
Agreement,
  
Cooperative
  
Shares and Proprietary Lease and, with respect to each Mortgage
Loan other than a Cooperative Loan,
  
"Mortgage
Loan" shall include, but not be limited to the related Mortgages
and the related Mortgage Notes.
 
                  
Mortgage Loan Purchase
  
Price:
  
The price,
  
calculated as set forth in
  
Section 11.01,
  
to be paid in connection with
the purchase of the Mortgage Loans pursuant to an Optional
Termination of the Trust Fund.
 
                  
Mortgage
  
Loan
  
Schedule:
  
The list of
  
Mortgage
  
Loans (as from time to time
  
amended by the
  
Seller to reflect
  
the
addition of
  
Qualified
  
Substitute
  
Mortgage
  
Loans and the
  
purchase
  
of Mortgage
  
Loans
  
pursuant
  
to
  
Sections
  
2.01, 2.02
  
or 2.03)
transferred to the Trustee as part of the Trust Fund and from time
to time subject to this
  
Agreement,
  
attached
  
hereto as Schedule I,
setting forth the following information with respect to each
Mortgage Loan and applicable Servicer by Loan Group:
 
1.
       
the Mortgage Loan identifying number;
 
2.
       
a code indicating the type of Mortgaged Property and the occupancy
status;
 
3.
       
a code indicating the Servicer of the Mortgage Loan;
 
4.
       
the original months to maturity;
 
5.
       
the Loan-to-Value Ratio at origination;
 
6.
       
the combined Loan-to-Value Ratio at origination;
 
7.
       
a code indicating the existence of a subordinate lien for the
related mortgaged property;
 
8.
       
the related borrower's debt-to-income ratio at origination;
 
9.
       
the related borrower's credit score at origination;
 
10.
      
the Mortgage Rate as of the Cut-off Date;
 
11.
      
the stated maturity date;
 
12.
      
the amount of the Scheduled Payment as of the Cut-off Date;
 
13.
      
the original principal amount of the Mortgage Loan;
 
14.
      
the principal
  
balance of the Mortgage Loan as of the close of business on the
Cut-off
  
Date,
  
after
  
deduction of payments of
principal due on or before the Cut-off Date whether or not
collected;
 
15.
      
the purpose of the Mortgage Loan (i.e., purchase, rate and term
refinance, equity take-out refinance);
 
16.
      
a code
  
indicating
  
whether a Prepayment
  
Premium is required to be paid in connection
  
with a prepayment of the Mortgage Loan
and the term and the amount of the Prepayment Premium;
 
17.
      
an indication whether the Mortgage Loan accrues interest at an
adjustable Mortgage Rate or a fixed Mortgage Rate;
 
18.
      
the Index that is associated with such Mortgage Loan, if
applicable;
 
19.
      
the Gross Margin, if applicable;
 
20.
      
the Periodic Rate Cap, if applicable;
 
21.
      
the Minimum Mortgage Rate, if applicable;
 
22.
      
the Maximum Mortgage Rate, if applicable;
 
23.
      
the first Adjustment Date after the Cut-off Date, if applicable;
 
24.
      
the Servicing Fee Rate;
 
25.
      
the Expense Fee Rate;
 
26.
      
a code
  
indicating
  
whether the Mortgage Loan is covered under a borrower paid or
lender paid Primary
  
Insurance
  
Policy (and,
if so, the name of the insurance
  
carrier) and the rate at which any lender paid Primary
  
Insurance
  
Policy premium is
  
calculated,
  
if
applicable; and
 
27.
      
a code indicating whether the Mortgage Loan is a MERS Mortgage Loan
and, if so, its corresponding MIN.
 
  
                
With respect to the Mortgage
  
Loans in the
  
aggregate,
  
each
  
Mortgage
  
Loan
  
Schedule
  
shall set forth the following
information, as of the Cut-off Date:
 
1.
       
the number of Mortgage Loans;
 
2.
       
the
  
current
  
aggregate
  
principal 
 
balance of the
  
Mortgage
  
Loans as of the close of business
  
on the
  
Cut-off
  
Date,
  
after
deduction of payments of principal due on or before the Cut-off
Date whether or not collected; and
 
3.
       
the weighted average Mortgage Rate of the Mortgage Loans.
 
                  
Mortgage
  
Note:
  
The original
  
executed note or other evidence of the
  
indebtedness
  
of a Mortgagor
  
under a Mortgage
Loan.
 
                  
Mortgage Rate:
  
The annual rate of interest borne by a Mortgage Note.
 
                  
Mortgagor:
  
The obligor on a Mortgage Note.
 
                  
Net Excess Spread:
  
With respect to any
  
Distribution
  
Date and Loan Group 6, a fraction,
  
expressed as a percentage,
the numerator of which is equal to the excess of (x) the
  
Aggregate Loan Group Balance for Loan Group 6 for the
  
immediately
  
preceding
Distribution
  
Date,
  
multiplied
  
by the product of (A) the Net WAC Rate for Loan Group 6 and (B) the
  
actual
  
number of days elapsed in
the related Accrual Period divided by 360 over (y) the
  
aggregate
  
Current
  
Interest for Loan Group 6 for such
  
Distribution
  
Date, and
the
  
denominator
  
of which is an amount
  
equal to the
  
Aggregate
  
Loan Group
  
Balance
  
for Loan Group 6 for the
  
immediately
  
preceding
Distribution Date, multiplied by the actual number of days elapsed
in the related Accrual Period divided by 360.
 
                  
Net Funds Cap: For any
  
Distribution
  
Date and the Group 6 Certificates
  
(other than the Class 6-X
  
Certificates
  
and
other than the Class 6-A-1
  
Certificates
  
except on any
  
Distribution
  
Date in which on the related Swap Payment Date a Swap Suspension
Event has
  
occurred),
  
will be a per annum rate equal to (a) a
  
fraction,
  
expressed
  
as a
  
percentage,
  
the
  
numerator of which is the
product of (1) the
  
Optimal
  
Interest
  
Remittance
  
Amount for such date and (2) 12,
  
and the denominator of which is the Aggregate Loan
Group Balance
  
for Loan
  
Group 6
  
(excluding
  
any such
  
Mortgage
  
Loans
  
that were
  
subject
  
to a Payoff,
  
the
  
principal
  
of which was
distributed on the Distribution Date preceding the current
Distribution Date) for the immediately
  
preceding
  
Distribution Date (or, in
the case of the first
  
Distribution
  
Date,
  
the Aggregate
  
Loan
  
Group Balance
  
for Loan Group 6 as of the Cut-off Date,
  
multiplied by
(b) a fraction, the numerator of which is 30 and the denominator of
which is the actual number of days in the related Accrual Period.
 
                  
Net Interest Shortfalls:
  
For any Distribution Date and the Group 1,
  
Group 2,
  
Group 3, Group 4 and Group 5 Mortgage
Loans,
  
the sum of (A) the
  
amount of
  
interest
  
which would
  
otherwise
  
have been
  
received
  
for a Mortgage
  
Loan in the related
  
Loan
Group during
  
the prior calendar
  
month that was the subject of (x) a Relief Act Reduction or (y) a
Special Hazard Loss,
  
Fraud Loss or
Bankruptcy Loss, after the exhaustion of the respective
  
amounts of coverage provided by the Class C-B
  
Certificates for those types of
losses; and (B) any related Net Prepayment Interest Shortfalls.
 
                  
Net
  
Liquidation
  
Proceeds:
  
With respect to any
  
Liquidated
  
Mortgage
  
Loan,
  
the excess of the related
  
Liquidation
Proceeds over the sum of Liquidation Expenses, Expense Fees and
unreimbursed Advances and Servicing Advances.
 
                  
Net Mortgage
  
Rate:
  
As to each
  
Mortgage
  
Loan,
  
and at any time,
  
the per annum rate equal to the Mortgage Rate for
such Mortgage Loan less the related Expense Fee Rate.
 
                  
Net
  
Prepayment
  
Interest
  
Shortfalls:
  
With respect to any
  
Distribution
  
Date, the amount by which the aggregate of
Prepayment
  
Interest
  
Shortfalls during the related
  
Prepayment Period exceeds the Compensating
  
Interest Payment for such Distribution
Date.
 
                  
Net Realized Losses: For any Class of Certificates,
  
other than the Group 6 Certificates,
  
and any Distribution Date,
the excess of (i) the amount of unreimbursed
  
Realized Losses
  
previously
  
allocated to that Class over
  
(ii) the sum of (a) the amount
of any increases to the Class Principal
  
Balance of that
  
Class pursuant
  
to Section 4.03 due to Recoveries and (b) amounts
  
previously
distributed to such Class in respect of Realized Losses pursuant to
Section 4.01.
 
                  
Net
  
Recovery
  
Realized
  
Losses:
  
For any
  
Class of
  
Certificates,
  
other
  
than
  
the
  
Group 6
  
Certificates,
  
and any
Distribution
  
Date, the excess of Net Realized
  
Losses for such
  
Distribution
  
Date over the amount
  
distributed in respect of Realized
Losses pursuant to Section 4.01 on that Distribution Date.
 
                  
Net Swap Payments:
  
A net payment (a) by the
  
Supplemental
  
Interest
  
Trust
  
Trustee,
  
on behalf of the
  
Supplemental
Interest Trust, to the Swap Counterparty,
  
to the extent that the Supplemental Trust Payment exceeds the Swap
Counterparty
  
Payment for
such Swap Payment Date, or (b) by the Swap
  
Counterparty
  
to the
  
Supplemental
  
Interest Trust Trustee,
  
on behalf of the
  
Supplemental
Interest Trust, to the extent that the Swap
  
Counterparty
  
Payment payable to the Supplemental
  
Interest Trust exceeds the Supplemental
Trust Payment for such Swap Payment Date.
 
                  
Net WAC Rate:
  
With respect to Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4 and Loan Group 5 and for any
Distribution Date, the Weighted Average Pass-Through Rate for such
Loan Group for such Distribution Date.
 
                  
In addition, for any purpose for which the Net WAC Rate is
calculated,
  
the interest rate on the Mortgage Loans shall
be
  
appropriately
  
adjusted to account for the difference
  
between any counting
  
convention used with respect to the Mortgage Loans and
any counting convention used with respect to a REMIC Regular
Interest.
 
                  
Non-Designated Mortgage Loans:
  
The Mortgage Loans that are not Designated Mortgage Loans.
 
                  
Nonrecoverable
  
Advance:
  
Any portion of an Advance or Servicing
  
Advance
  
previously
  
made or proposed to be made by
the Master
  
Servicer or a Servicer that, in the good faith judgment of the
Master Servicer or a Servicer (as
  
applicable),
  
will not be
ultimately
  
recoverable by the Master Servicer or a Servicer (as applicable)
from the related Mortgagor,
  
related Liquidation
  
Proceeds
or otherwise from proceeds or collections on the related Mortgage
Loan.
 
                  
Notional Amount Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Offered Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Officer's
  
Certificate:
  
A
  
certificate
  
signed by the
  
Chairman of the Board,
  
any Vice
  
Chairman of the Board,
  
the
President,
  
an Executive Vice President,
  
Senior Vice President,
  
a Vice President,
  
or other authorized
  
officer,
  
the Treasurer,
  
the
Secretary,
  
or one of the Assistant
  
Treasurers
  
or Assistant
  
Secretaries
  
of the
  
Depositor,
  
the Seller,
  
the Master
  
Servicer,
  
the
Servicers,
  
the Special
  
Servicer,
  
a Sub-Servicer,
  
the Trustee or the Trust
  
Administrator,
  
as the case may be, and delivered to the
Depositor,
  
the Seller, the Master Servicer, the Special Servicer, the
Servicers,
  
the Trustee or the Trust Administrator,
  
as required
by this Agreement.
 
                  
Opinion of Counsel:
  
A written
  
opinion of counsel,
  
who may be counsel for the Depositor,
  
the Master
  
Servicer or a
Servicer,
  
including
  
in-house
  
counsel,
  
reasonably
  
acceptable
  
to the
  
Trustee
  
and the Trust
  
Administrator.
  
With
  
respect
  
to the
definition of Eligible
  
Account in this Article I and Sections 2.05 and 7.04 hereof and any
opinion dealing with the
  
qualification
  
of
each REMIC created
  
hereunder or compliance with the REMIC
  
Provisions,
  
such counsel must (i) in fact be independent of the Depositor,
the Master
  
Servicer and such
  
Servicer,
  
(ii) not have any direct
  
financial
  
interest in the Depositor,
  
the Master
  
Servicer or such
Servicer or in any affiliate of either of them and (iii) not be
connected with the Depositor,
  
the Master
  
Servicer or such Servicer as
an officer, employee,
  
promoter,
  
underwriter,
  
trustee, partner, director or Person performing similar functions;
  
provided, that with
respect to Wells Fargo Bank, N.A. as Servicer, such counsel may be
in-house counsel for Wells Fargo Bank, N.A. as Servicer.
 
                  
Optimal Interest
  
Remittance
  
Amount:
  
With respect to any Distribution
  
Date and Loan Group 6, the excess of (i) the
product of
  
(1)(x) the
  
weighted
  
average of the Net Mortgage
  
Rates of the
  
Mortgage
  
Loans in Loan Group 6 as of the first day of the
related
  
Collection
  
Period divided by (y) 12 and (2) the Aggregate Loan
  
Group Balance for Loan Group 6 for the immediately
  
preceding
Distribution
  
Date
  
(excluding
  
any such Mortgage
  
Loans that were subject to a Payoff,
  
the principal of which was
  
distributed on the
Distribution Date preceding the current
  
Distribution
  
Date),
  
over (ii) any
  
expenses that reduce the Interest
  
Remittance Amount with
respect to Loan Group 6 that did not arise as a result of a default
or
  
delinquency
  
of the Mortgage
  
Loans in Loan Group 6 or were not
taken into account in computing the Expense Fee Rate.
 
                  
Optional Termination: 
 
The purchase of the Mortgage Loans pursuant to Section 11.01.
 
                  
Optional
  
Termination
  
Date:
  
The date fixed by a Terminating
  
Entity for the purchase of the Mortgage Loans pursuant
to Section 11.01.
 
                  
Optional
   
Termination
   
Notice
   
Period:
   
The
  
period
   
during
  
which
  
notice
  
is
  
to
  
be
  
given
  
to
  
the
  
affected
Certificateholders of an Optional Termination pursuant to Section
11.03(d).
 
                  
OTS:
  
The Office of Thrift Supervision.
 
                  
Outsourcer:
  
As defined in Section 3.02.
 
                  
Overcollateralization
  
Amount:
  
For any
  
Distribution
  
Date, an amount equal to the amount,
  
if any, by which (x) the
Aggregate Loan Group Balance for Loan Group 6 for such
  
Distribution
  
Date exceeds (y) the
  
aggregate
  
Class
  
Principal
  
Balance of the
Group 6 Certificates (other than the Class 6-X Certificates) after
giving effect to payments on such Distribution Date.
 
                  
Overcollateralization
  
Deficiency:
  
For any
  
Distribution
  
Date,
  
the
  
amount,
  
if any,
  
by
  
which
  
(x) the
  
Targeted
Overcollateralization
  
Amount for such
  
Distribution
  
Date exceeds (y) the
  
Overcollateralization
  
Amount for such
  
Distribution
  
Date,
calculated for this purpose after giving effect to the reduction on
such
  
Distribution
  
Date of the aggregate Class
  
Principal
  
Balance
of the Group 6
  
Certificates
  
(other than the Class 6-X
  
Certificates)
  
resulting
  
from the payment of the Principal
  
Payment Amount on
such Distribution Date but prior to allocation of any Applied Loss
Amount on the Group 6 Certificates on such Distribution Date.
 
                  
Overcollateralization
  
Release Amount:
  
For any Distribution Date, an amount equal to the lesser of (x) the
Principal
Remittance Amount for such Distribution Date and (y) the amount, if
any, by which (1) the
  
Overcollateralization
  
Amount for such date,
calculated for this purpose on the basis of the
  
assumption
  
that 100% of the Principal
  
Remittance
  
Amount for such date is applied on
such date in
  
reduction
  
of the
  
aggregate
  
of the Class
  
Principal
  
Balances of the Group 6
  
Certificates
  
(other
  
than the
  
Class 6-X
Certificates), exceeds (2) the Targeted Overcollateralization
Amount for such date.
 
                  
Overcollateralized Group:
  
As defined in Section 4.07(b).
 
                  
Participant:
  
A broker,
  
dealer,
  
bank,
  
other financial
  
institution or other Person for whom DTC effects book entry
transfers and pledges of securities deposited with DTC.
 
                  
Par-Value:
  
As defined in Section 11.01.
 
                  
Pass-Through
  
Entity:
  
(a) a
  
regulated
  
investment
  
company
  
described
  
in
  
Section 851
  
of the Code,
  
a real estate
investment
  
trust
  
described in Section 856 of the Code, a common trust fund or an
  
organization
  
described in
  
Section 1381(a) of
  
the
Code, (b) any partnership, trust or estate or (c) any person
holding a Class A Certificate as nominee for another person.
 
                  
Pass-Through
  
Rate: For any interest bearing Class of
  
Certificates
  
(other than Class 6-A-1
  
Certificates),
  
the per
annum rate set forth or calculated in the manner
  
described in the
  
Preliminary
  
Statement.
  
Interest on the
  
Certificates,
  
other than
the LIBOR
  
Certificates,
  
will be computed
  
on the basis of a 360 day year
  
comprised
  
of twelve 30 day
  
months.
  
Interest on the LIBOR
Certificates
  
and the
  
Class 6-X
  
Certificates
  
(to the extent it is entitled to interest
  
from Loan
  
Group 6)
  
will be computed on the
basis of a 360-day year and the actual number of days elapsed in
the related Accrual Period.
 
                  
Payahead:
  
Any Scheduled
  
Payment intended by the related
  
Mortgagor to be applied in a Collection
  
Period subsequent
to the Collection Period in which such payment was received.
 
                  
Payoff:
  
Any payment of principal on a Mortgage
  
Loan equal to the entire
  
outstanding
  
Stated
  
Principal
  
Balance of
such Mortgage
  
Loan, if received in advance of the last
  
scheduled
  
Due Date for such
  
Mortgage
  
Loan and
  
accompanied
  
by an amount of
interest equal to accrued unpaid interest on the Mortgage Loan to
the date of such payment in full.
 
                  
Payoff
  
Interest:
  
For any Distribution
  
Date with respect to each SPS Serviced
  
Mortgage Loan for which a Payoff was
received on or after the first calendar day of the month of such
  
Distribution
  
Date and before the 15th calendar day of such month, an
amount of interest thereon at the applicable Net Mortgage Rate from
the first day of such month through the day of receipt thereof.
 
                  
PCAOB:
  
The Public Company Accounting Oversight Board.
 
                  
Percentage
  
Interest:
  
With respect to any Certificate,
  
either the percentage set forth on the face thereof or equal
to the percentage
  
obtained by dividing the Denomination of such Certificate by the
aggregate of the
  
Denominations of all Certificates
of the same Class.
 
                  
Person:
  
Any
  
individual,
  
corporation,
   
partnership,
  
joint
  
venture,
  
association,
  
joint
  
stock
  
company,
  
trust,
unincorporated organization or government, or any agency or
political subdivision thereof.
 
                  
Physical Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Pledge
  
Instruments:
  
With respect to each Cooperative Loan, the Stock Power, the
Assignment of Proprietary Lease and
the Security Agreement.
 
                  
Prepayment Interest Shortfall:
  
With respect to any Mortgage Loan,
  
Distribution Date and Principal Prepayment (other
than a Payoff on a Wells Fargo Serviced
  
Mortgage Loan or SPS Serviced
  
Mortgage Loan received during the period from and including the
first day to and including the 14th day of the month of such
  
Distribution
  
Date) received during the related
  
Prepayment
  
Period,
  
the
difference
  
between
  
(i) one
  
full
  
month's
  
interest at the
  
applicable
  
Mortgage
  
Rate (giving
  
effect to any
  
applicable
  
Relief Act
Reduction,
  
Debt Service Reduction and Deficient
  
Valuation),
  
as reduced by the Servicing Fee Rate, if applicable,
  
on the outstanding
principal
  
balance of such Mortgage Loan immediately
  
prior to such prepayment or, if such Principal
  
Prepayment is a Curtailment,
  
the
principal
  
amount of such
  
Curtailment
  
and
  
(ii) the
  
amount of interest
  
actually
  
received
  
with
  
respect to such
  
Mortgage
  
Loan in
connection with such Principal Prepayment, net of the Servicing
Fee, if applicable.
 
                  
Prepayment
  
Period:
  
With respect to each
  
Distribution
  
Date and each Payoff with respect to a Wells Fargo
  
Serviced
Mortgage Loan or SPS Serviced Mortgage Loan, the related
  
"Prepayment
  
Period" will commence on the 15th day of the month preceding the
month in which the related
  
Distribution Date occurs (or, in the case of the first Distribution
  
Date,
  
commencing on the Cut-off Date)
and will end on the 14th day of the month in which such
  
Distribution
  
Date
  
occurs.
  
With respect to each
  
Distribution
  
Date and each
Payoff with respect to any Mortgage
  
Loan serviced by a Designated
  
Servicer,
  
the related
  
"Prepayment
  
Period" will be the period set
forth in the related Designated
  
Servicing
  
Agreement.
  
With respect to each Distribution Date and each Curtailment with
respect to any
Mortgage Loan, the related "Prepayment Period" will be the calendar
month preceding the month in which such Distribution Date occurs.
 
         
         
Prepayment
  
Premium:
  
With
  
respect to any Mortgage
  
Loan,
  
any fee or premium
  
required to be paid if the
  
Mortgagor
prepays such Mortgage Loan as provided in the related Mortgage Note
or Mortgage.
 
                  
Principal Payment Amount:
  
For any Distribution Date and Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4 or
Loan Group 5, the sum of (i) the
  
principal
  
portion of the
  
Scheduled
  
Payments on the
  
Mortgage
  
Loans in such Loan
  
Group due on the
related
  
Due Date,
  
(ii) the
  
principal
  
portion
  
of
  
repurchase
  
proceeds
  
received
  
with
  
respect to any
  
Mortgage
  
Loan in such Loan
Group which
  
was
  
repurchased
  
as
  
permitted
  
or required by this
  
Agreement
  
during the period
  
beginning on the 15th day of the month
preceding such Distribution
  
Date and ending on the 14th day of the month of such
  
Distribution
  
Date, with notice and receipt of funds
three (3) Business
  
Days prior to the 14th day of the month of such
  
Distribution
  
Date and
  
(iii) any
  
other
  
unscheduled
  
payments of
principal which were received on the Mortgage Loans in such Loan
  
Group during
  
the related
  
calendar month preceding the month of such
Distribution Date, other than Principal Prepayments or Liquidation
Principal.
 
                  
For any Distribution
  
Date and Loan Group 6,
  
an amount equal to the Principal
  
Remittance Amount for such date minus
the Overcollateralization Release Amount, if any, for such date.
 
                  
Principal Prepayment:
  
Any payment of principal on a Mortgage Loan which constitutes a
Payoff or Curtailment.
 
                  
Principal
  
Prepayment Amount: For any Distribution Date and Loan Group 1,
  
Loan Group 2,
  
Loan Group 3,
  
Loan Group 4
or Loan Group 5, the sum of (i) all
  
Principal
  
Prepayments
  
relating to the
  
Mortgage
  
Loans in such Loan
  
Group which
  
were
  
received
during the
  
related
  
Prepayment
  
Period
  
and
  
(ii) all
  
Recoveries
  
received
  
during the
  
calendar
  
month
  
preceding
  
the month of that
Distribution Date.
 
                  
Principal
  
Remittance
  
Amount: 
 
For any
  
Distribution
  
Date and Loan
  
Group 6, an amount
  
equal to the sum of (1) all
principal
  
collected
  
(other
  
than
  
Payaheads)
  
or
  
advanced
  
in respect
  
of
  
Scheduled
  
Payments
  
on the
  
Mortgage
  
Loans in such Loan
Group during the related Collection Period (less unreimbursed
Advances,
  
Servicing Advances and other amounts due to the Servicers, the
Trustee,
  
the Master
  
Servicer
  
and the Trust
  
Administrator
  
with
  
respect to the
  
Mortgage
  
Loans in such Loan
  
Group,
  
to the extent
allocable to
  
principal)
  
and the
  
principal
  
portion of Payaheads
  
previously
  
received on the Mortgage
  
Loans in such Loan
  
Group and
intended for application in the related Collection Period,
  
(2) all Principal
  
Prepayments
  
received on the Mortgage Loans in such Loan
Group during
  
the related
  
Prepayment
  
Period,
  
(3) the Purchase Price of each Mortgage Loan in such Loan Group
that was repurchased by
the Seller or purchased by the Special Servicer pursuant to Section
3.11(g) or
  
the holder of the Subordinate
  
Certificates pursuant to
Section 3.11(f),
  
during the
  
related
  
Collection
  
Period and the
  
principal
  
proceeds of any
  
purchase of Mortgage
  
Loans in such Loan
Group by the
  
Terminating
  
Entity
  
pursuant to
  
Section 11.01
  
in an amount not exceeding
  
the principal 
 
portion of the Par Value with
respect to such Mortgage Loans,
  
(4) the portion of any Substitution
  
Adjustment Amount paid with respect to any Deleted Mortgage Loans
in such Loan Group during the related Collection Period allocable
to principal,
  
(5) all Net Liquidation
  
Proceeds (net of unreimbursed
Advances,
  
Servicing
  
Advances and other
  
expenses,
  
to the extent
  
allocable to principal)
  
and any other
  
Recoveries
  
collected
  
with
respect to the Mortgage
  
Loans in such Loan
  
Group during
  
the preceding 
 
calendar
  
month,
  
to the extent
  
allocable to principal,
  
and
(6) amounts,
  
if any,
  
withdrawn
  
from the Group 6 Interest
  
Rate Cap Account to cover
  
Realized
  
Losses on the Group 6 Mortgage
  
Loans
incurred during the related Collection Period.
 
         
         
Principal Transfer Amount: For any Distribution Date and each
  
Undercollateralized
  
Group, the excess, if any, of the
aggregate Class Principal Balance of the Class A Certificates
related to such
  
Undercollateralized
  
Group over the Aggregate Loan Group
Balance of such Group.
 
                  
Private Certificates:
  
As set forth in the Preliminary Statement.
 
                  
Proprietary
  
Lease:
  
The
  
lease
  
on a
  
Cooperative
  
Unit
  
evidencing
  
the
  
possessory
  
interest
  
of the
  
owner of the
Cooperative Shares in such Cooperative Unit.
                  
Pro Rata Share: With respect to any Distribution
  
Date and any Class of
  
Class C-B
  
Certificates,
  
the portion of the
Subordinate
  
Principal
  
Distribution
  
Amount allocable to such Class,
  
equal to the product of the Subordinate
  
Principal
  
Distribution
Amount on such
  
Distribution
  
Date and a fraction,
  
the numerator of which is the related Class Principal Balance of
such Class and the
denominator of which is the aggregate of the Class Principal
Balances of the Class C-B Certificates.
 
                  
Prospectus:
  
The Prospectus,
  
dated December 22, 2005, relating to the offering by the Depositor
from time to time of
its
  
Mortgage-Backed
  
Pass-Through
  
Certificates
  
(Issuable in Series) in the form in which it was or will be filed
with the Securities
and Exchange Commission pursuant to Rule 424(b) under the 1933 Act
with respect to the offer and sale of the Offered Certificates.
 
                  
Prospectus Supplement:
  
The Prospectus
  
Supplement,
  
dated February 27, 2006, relating to the offering of the Offered
Certificates
  
in the form in which it was or will be filed with the Securities
and Exchange
  
Commission
  
pursuant to
  
Rule 424(b) under
the 1933 Act with respect to the offer and sale of the Offered
Certificates.
 
                  
PUD:
  
Planned Unit Development.
 
                  
Purchase
  
Price:
  
With respect to any Mortgage Loan required to be repurchased by the
Seller pursuant to Section 2.02
or 2.03, purchased by a holder of certain Certificates pursuant to
  
Section 3.11(f) or
  
purchased at the option of the Special Servicer
pursuant to
  
Section 3.11(g),
  
the sum of
  
(i) 100% of the Stated
  
Principal
  
Balance of the
  
Mortgage
  
Loan as of the first day of the
month of such purchase,
  
(ii) accrued and unpaid interest on the Mortgage Loan at the
applicable
  
Mortgage Rate (reduced by the related
Servicing Fee Rate,
  
if the
  
purchaser is also the Servicer
  
thereof) from the first day of the month of such purchase to the
first day
of the month
  
immediately
  
following the month of such
  
purchase,
  
(iii) in the case of a Mortgage Loan
  
purchased by the Seller or the
Depositor,
  
the amount of any unreimbursed
  
Advances and Servicing
  
Advances made by a Servicer,
  
if such Servicer is not the Seller or
the
  
Depositor,
  
with
  
respect
  
to such
  
Mortgage
  
Loan or, in the case of a Mortgage
  
Loan
  
purchased
  
by the
  
Special
  
Servicer,
  
any
unreimbursed
  
Advances and Servicing
  
Advances
  
payable to any Servicer (other than the Servicer or Special
  
Servicer,
  
as the case may
be, which is purchasing such Mortgage Loans) and (iv) with
  
respect to any purchase by the Seller pursuant to
  
Section 2.03,
  
any costs
and damages actually
  
incurred and paid by or on behalf of the Trust in connection with
any breach of the
  
representation
  
and warranty
set forth in Schedule
  
III(viii) as
  
a result of a violation of a predatory or abusive
  
lending law
  
applicable to such Mortgage
  
Loan.
With respect to any Mortgage Loan required or allowed to be
purchased,
  
the Special Servicer, the Certificateholder,
  
the Seller or the
Depositor,
  
as applicable,
  
shall deliver to the Trustee and the Trust Administrator an
Officer's
  
Certificate as to the calculation of
the Purchase Price.
 
                  
Qualified
  
Insurer:
  
A mortgage guaranty
  
insurance company duly qualified as such under the laws of the
state of its
principal
  
place of business and each state having
  
jurisdiction
  
over such insurer in connection
  
with the insurance
  
policy issued by
such insurer,
  
duly
  
authorized and licensed in such states to transact a mortgage
  
guaranty
  
insurance
  
business in such states and to
write the insurance
  
provided by the insurance
  
policy issued by it, approved as a FNMA or FHLMC approved
  
mortgage insurer or having a
claims paying ability rating of at least "AA" or equivalent rating
by a nationally
  
recognized
  
statistical
  
rating
  
organization.
  
Any
replacement
  
insurer
  
with
  
respect to a Mortgage
  
Loan must have at least as high a claims
  
paying
  
ability
  
rating as the
  
insurer it
replaces had on the Closing Date.
 
                  
Qualified
  
Substitute
  
Mortgage Loan:
  
One or more Mortgage
  
Loans
  
substituted by the Seller for one or more Deleted
Mortgage
  
Loans which must,
  
on the date of such
  
substitution,
  
as confirmed in a Request for
  
Release,
  
substantially
  
in the form of
Exhibit K,
  
individually or in the aggregate and on a weighted average basis,
as applicable (i) have a Stated Principal Balance,
  
after
deduction of the principal portion of the Scheduled
  
Payment due in the month of substitution,
  
not in excess of, and not more than 10%
less than the Stated
  
Principal
  
Balance of the Deleted Mortgage Loan;
  
(ii) be accruing
  
interest at a rate no lower than and not more
than 1% per annum higher than, that of the Deleted
  
Mortgage Loan;
  
(iii) have a Loan to Value Ratio no higher than that of the Deleted
Mortgage
  
Loan;
  
(iv) have a remaining
  
term to maturity not more than one year greater than or less than
that of the Deleted
  
Mortgage
Loan;
  
provided that the remaining term to maturity of any such Mortgage
Loan shall be no greater than the last maturing
  
Mortgage Loan
immediately
  
prior to any
  
substitution;
  
(v) have a Maximum
  
Mortgage Rate and Minimum Mortgage Rate not less than the
respective such
rates for the Deleted
  
Mortgage
  
Loan,
  
have a Gross Margin equal to or greater than the Deleted
  
Mortgage Loan and have the same Index
as the Deleted
  
Mortgage
  
Loan;
  
(vi) not be a Cooperative
  
Loan unless the Deleted
  
Mortgage
  
Loan was a
  
Cooperative
  
Loan and (vii) 
comply with each representation and warranty set forth in Section
2.03(b).
 
                  
Rating
  
Agency:
  
Each of Moody's and S&P or any successor to any of them, so
long as such entity is rating any of the
Certificates.
 
                  
Ratings:
  
As of any date of
  
determination,
  
the
  
ratings,
  
if any,
  
of the
  
Certificates
  
as
  
assigned by the Rating
Agencies.
 
                  
Realized Loss: With respect to any Mortgage Loan, (1) with respect
to each
  
Liquidated
  
Mortgage Loan, an amount (not
less than zero or more than the Stated
  
Principal
  
Balance of the Mortgage Loan) as of the date of such
  
liquidation,
  
equal to (i) the
Stated Principal Balance of the Liquidated
  
Mortgage Loan as of the date of such liquidation,
  
plus (ii) interest at the applicable Net
Mortgage Rate from the related Due Date as to which interest was
last paid or advanced (and not
  
reimbursed) to
  
Certificateholders
  
up
to the related Due Date in the month in which
  
Liquidation
  
Proceeds are required to be distributed on the Stated Principal
  
Balance of
such Liquidated Mortgage Loan from time to time, minus (iii) the
Net Liquidation
  
Proceeds,
  
if any, received during the month in which
such
  
liquidation
  
occurred,
  
to the extent
  
applied as
  
recoveries
  
of
  
interest
  
at the Net 
 
Mortgage
  
Rate and to
  
principal
  
of the
Liquidated
  
Mortgage Loan;
  
(2) for any Mortgage Loan subject to a Deficient
  
Valuation,
  
the excess of the Stated Principal Balance of
that Mortgage Loan over the principal
  
amount as reduced in connection with the proceedings
  
resulting in the Deficient
  
Valuation;
  
or
(3) for any Debt Service
  
Reduction
  
Mortgage
  
Loan,
  
the present value of all monthly Debt Service
  
Reductions
  
on the Mortgage
  
Loan,
assuming that the mortgagor pays each Scheduled
  
Payment on the applicable Due Date and that no Principal
  
Prepayments
  
are received on
the Mortgage Loan, discounted at the applicable Mortgage Rate.
 
                  
Realized
  
Losses
  
allocated to the Class 6-X
  
Certificates
  
shall be allocated
  
first to REMIC III
  
Regular
  
Interest
6-X-IO in reduction of the accrued but unpaid
  
interest
  
thereon until such accrued and unpaid interest shall have been
reduced to zero
and then to REMIC III Regular Interest 6-X-PO in reduction of the
principal balance thereof.
 
        
          
Recognition
  
Agreement:
  
An Agreement
  
among a Cooperative
  
Corporation,
  
a lender and a Mortgagor
  
with respect to a
Cooperative Loan whereby such parties
  
(i) acknowledge
  
that such lender may make, or intends to make, such Cooperative
Loan, (ii) make
certain agreements with respect to such Cooperative Loan.
 
                  
Record Date: With respect to any Distribution
  
Date and the Certificates
  
other than the LIBOR
  
Certificates
  
held in
Book-Entry
  
Form on such
  
Distribution
  
Date, the close of business on the last Business Day of the month
  
preceding the month in which
the applicable
  
Distribution Date occurs.
  
With respect to any Distribution Date and the LIBOR
  
Certificates held in Book-Entry Form on
such Distribution Date, the close of business on the Business Day
immediately preceding such Distribution Date.
 
                  
Recovery:
  
With respect to any Distribution Date and Mortgage Loan that became
a Liquidated
  
Mortgage Loan in a month
preceding
  
the month prior to the
  
Distribution
  
Date,
  
an amount
  
received in respect of
  
principal
  
on such
  
Mortgage
  
Loan which has
previously
  
been
  
allocated
  
as a Realized
  
Loss or Applied
  
Loss
  
Amount to a Class or Classes of
  
Certificates,
  
net of
  
reimbursable
expenses.
 
                 
 
Reference
  
Bank Rate:
  
With
  
respect to any
  
Accrual
  
Period
  
relating
  
to the LIBOR
  
Certificates
  
as
  
follows:
  
the
arithmetic
  
mean
  
(rounded
  
upwards,
  
if
  
necessary,
  
to the nearest one sixteenth of a percent) of the offered rates for
United States
dollar
  
deposits for one month which are offered by the Reference
  
Banks as of 11:00 A.M.,
  
London time, on the Interest
  
Determination
Date prior to the first day of such Accrual Period to prime banks
in the London
  
interbank
  
market for a period of one month in amounts
approximately
  
equal to the aggregate
  
Class
  
Principal
  
Balance of the LIBOR
  
Certificates;
  
provided that at least two such Reference
Banks
  
provide such rate. If fewer than two offered rates appear,
  
the
  
Reference
  
Bank Rate will be the 
 
arithmetic
  
mean of the rates
quoted by one or more major banks in New York City,
  
selected by the Trust
  
Administrator
  
after
  
consultation
  
with DLJMC, as of 11:00
A.M.,
  
New York City
  
time,
  
on such date for loans in U.S.
  
Dollars
  
to
  
leading
  
European
  
banks for a period of one month in amounts
approximately
  
equal to the aggregate Class Principal
  
Balance of the LIBOR
  
Certificates.
  
If no such quotations can be obtained,
  
the
Reference Bank Rate shall be the Reference Bank Rate applicable to
the preceding Accrual Period.
 
                  
Reference
  
Banks:
  
Three
  
major
  
banks
  
that are
  
engaged
  
in the
  
London
  
interbank
  
market,
  
selected
  
by the Trust
Administrator after consultation with DLJMC.
 
                  
Registration
  
Statement:
  
That certain registration
  
statement on Form S-3, as amended (Registration No. 333-127872),
relating to the offering by the Depositor from time to time of its
Mortgage-Backed
  
Pass-Through
  
Certificates
  
(Issuable in Series) as
heretofore declared effective by the Securities and Exchange
Commission.
 
                  
Regular Certificates:
  
All of the Certificates other than the Class AR and Class AR-L
Certificates.
 
                  
Regulation AB: Means Subpart 229.1100 - Asset Backed Securities
(Regulation AB), 17 C.F.R.
  
§§229.1100 - 229.1123, as
such may be amended from time to time, and subject to such
  
clarification
  
and
  
interpretation
  
as have been provided by the Commission
in the adopting release (Asset-Backed
  
Securities,
  
Securities Act Release No. 33-8518, 70 Red. Reg. 1,506, 1,531 (Jan.
7, 2005)) or by
the staff of the Commission, or as may be provided by the
Commission or its staff from time to time.
 
                  
Relevant
  
Servicing
  
Criteria:
  
The Servicing Criteria
  
applicable to the various parties,
  
as set forth on Exhibit R
attached hereto.
  
For
  
clarification
  
purposes,
  
multiple parties can have
  
responsibility
  
for the same Relevant
  
Servicing
  
Criteria.
With respect to a Servicing Function Participant engaged by the
Master Servicer,
  
each Servicer,
  
the Trust Administrator,
  
the Trustee
or each Servicer,
  
the term "Relevant
  
Servicing Criteria" may refer to a portion of the Relevant
Servicing Criteria applicable to such
parties
 
 
                  
Relief Act:
  
The Servicemembers Civil Relief Act, as amended, and any similar
state or local law.
 
                  
Relief Act
  
Reductions:
  
With respect to any
  
Distribution
  
Date and any
  
Mortgage
  
Loan as to which there has been a
reduction in the amount of interest
  
collectible
  
thereon for the most recently ended calendar month as a result of
the
  
application of
the Relief Act, the amount,
  
if any, by which
  
(i) interest
  
collectible
  
on such Mortgage Loan for the most
  
recently
  
ended
  
calendar
month is less than (ii) interest accrued thereon for such month
pursuant to the Mortgage Note.
 
                  
REMIC:
  
A "real estate
  
mortgage
  
investment
  
conduit,"
  
within the meaning of
  
Section 860D
  
of the Code.
  
Reference
herein to REMIC refers to each REMIC created by the Preliminary
Statement.
 
                  
REMIC Election:
  
An election, for federal income tax purposes, to treat certain
assets as a REMIC.
 
                  
REMIC I Available
  
Distribution Amount: For each of Loan Group 1,
  
Loan Group 2,
  
Loan Group 3, Loan Group 4 and Loan
Group 5, for any Distribution Date, the Available Distribution
Amount for such Loan Group.
 
                  
REMIC I
  
Distribution
  
Amount: For any Distribution Date, the REMIC I Available
  
Distribution Amounts shall be deemed
distributed to REMIC III,
  
as the holder of the REMIC I Regular Interests,
  
and to Holders of the Class AR-L Certificates in respect of
Component I thereof, pursuant to Section 4.01(IV)(a)(i), in the
following amounts and priority:
 
                  
(a)
      
To the extent of the REMIC I Available Distribution Amount for Loan
Group 1:
 
                           
(i)
      
first,
   
to
  
Class Y-1
  
and
  
Class Z-1
   
Regular
   
Interests
  
and
  
Component I
  
of
  
the
  
Class AR-L
         
Certificates,
  
concurrently,
  
the
  
Uncertificated 
 
Accrued
  
Interest or accrued
  
interest,
  
as
  
applicable,
  
for such
  
Classes
         
remaining unpaid from previous Distribution Dates, pro rata
according to their respective shares of such unpaid amounts;
 
                           
(ii)
     
second,
  
to the
  
Class Y-1 and
  
Class Z-1
  
Regular
  
Interests
  
and
  
Component I
  
of the
  
Class AR-L
         
Certificates,
  
concurrently,
  
the Uncertificated Accrued Interest or accrued interest, as
applicable, for such Classes for the
         
current Distribution Date, pro rata according to their respective
Uncertificated Accrued Interest;
 
                           
(iii)
    
third, to Component I of the Class AR-L
  
Certificates,
  
until the
  
Certificate
  
Balance thereof has
         
been reduced to zero; and
 
       
                    
(iv)
     
fourth,
  
to the Class Y-1 and Class Z-1 Regular
  
Interests,
  
the Class Y-1
  
Principal
  
Distribution
         
Amount and the Class Z-1 Principal Distribution Amount,
respectively.
 
                  
(b)
      
To the extent of the REMIC I Available Distribution Amount for Loan
Group 2:
 
                           
(i)
      
first, to the Class Y-2 and Class Z-2 Regular Interests,
  
concurrently,
  
the Uncertificated Accrued
         
Interest for such Classes
  
remaining unpaid from previous
  
Distribution
  
Dates, pro rata according to their respective
  
shares
         
of such unpaid amounts;
 
                           
(ii)
     
second, to the Class Y-2 and Class Z-2 Regular Interests,
  
concurrently, the Uncertificated Accrued
         
Interest for such Classes for the current
  
Distribution
  
Date, pro rata according to their respective
  
Uncertificated
  
Accrued
         
Interest; and
 
                           
(iii)
    
third,
  
to the Class Y-2 and Class Z-2
  
Regular
  
Interests,
  
the Class Y-2
  
Principal
  
Distribution
         
Amount and the Class Z-2 Principal Distribution Amount,
respectively.
 
                  
(c)
      
To the extent of the REMIC I Available Distribution Amount for Loan
Group 3:
 
                           
(i)
      
first, to the Class Y-3 and Class Z-3 Regular Interests,
  
concurrently,
  
the Uncertificated Accrued
         
Interest for such Classes
  
remaining unpaid from previous
  
Distribution
  
Dates, pro rata according to their respective
  
shares
         
of such unpaid amounts;
 
                           
(ii)
     
second, to the Class Y-3 and Class Z-3 Regular Interests,
  
concurrently, the Uncertificated Accrued
         
Interest for such Classes for the current
  
Distribution
  
Date, pro rata according to their respective
  
Uncertificated
  
Accrued
         
Interest; and
 
                           
(iii)
    
third,
  
to the Class Y-3 and Class Z-3
  
Regular
  
Interests,
  
the Class Y-3
  
Principal
  
Distribution
         
Amount and the Class Z-3 Principal Distribution Amount,
respectively.
 
                  
(d)
      
To the extent of the REMIC I Available Distribution Amount for Loan
Group 4:
 
                           
(i)
      
first, to the Class Y-4 and Class Z-4 Regular Interests,
  
concurrently,
  
the Uncertificated Accrued
        
 
Interest for such Classes
  
remaining unpaid from previous
  
Distribution
  
Dates, pro rata according to their respective
  
shares
         
of such unpaid amounts;
 
                           
(ii)
     
second, to the Class Y-4 and Class Z-4 Regular Interests, 
 
concurrently, the Uncertificated Accrued
         
Interest for such Classes for the current
  
Distribution
  
Date, pro rata according to their respective
  
Uncertificated
  
Accrued
         
Interest; and
 
                           
(iii)
    
third,
  
to the Class Y-4 and Class Z-4
  
Regular
  
Interests,
  
the Class Y-4
  
Principal
  
Distribution
         
Amount and the Class Z-4 Principal Distribution Amount,
respectively.
 
                  
(e)
      
To the extent of the REMIC I Available Distribution Amount for Loan
Group 5:
 
                           
(i)
      
first, to the Class Y-5 and Class Z-5 Regular Interests,
  
concurrently,
  
the Uncertificated Accrued
         
Interest for such Classes
  
remaining unpaid from previous
  
Distribution
  
Dates, pro rata according to their respective
  
shares
         
of such unpaid amounts;
                           
(ii)
     
second, to the Class Y-5 and Class Z-5 Regular Interests,
  
concurrently, the Uncertificated Accrued
         
Interest for such Classes for the current
  
Distribution
  
Date, pro rata according to their respective
  
Uncertificated
  
Accrued
         
Interest; and
 
                           
(iii)
    
third,
  
to the Class Y-5 and Class Z-5
  
Regular
  
Interests,
  
the Class Y-5
  
Principal
  
Distribution
         
Amount and the Class Z-5 Principal Distribution Amount,
respectively.
 
                  
(f)
      
To the extent of the REMIC I
  
Available
  
Distribution
  
Amounts for such
  
Distribution
  
Date remaining
  
after
payment of the amounts pursuant to paragraphs (a) through (e) of
this definition of "REMIC I Distribution Amount":
 
                           
(i)
      
first, to each Class of
  
REMIC I Class Y and Class Z Regular
  
Interests,
  
pro rata according to the
         
amount of unreimbursed
  
Realized Losses allocable to principal
  
previously
  
allocated to each such Class;
  
provided,
  
however,
         
that any amounts distributed
  
pursuant to this paragraph (f)(i) of this definition of "REMIC I
  
Distribution Amount" shall not
         
cause a reduction in the Uncertificated Principal Balances of any
of the Class Y and Class Z Regular Interests; and
 
                           
(ii)
     
second, to the Class AR-L Certificates in respect of Component I
thereof, any remaining amount.
 
                  
REMIC I Realized Losses: Realized Losses on the Group 1,
  
Group 2,
  
Group 3, Group 4 and Group 5 Mortgage Loans shall
be allocated to the REMIC I Regular
  
Interests as follows:
  
(1) the interest portion of Realized Losses and Net Interest
  
Shortfalls on
the Group 1 Loans, if any, shall be allocated
  
between the Class Y-1 and Class Z-1
  
Regular
  
Interests pro rata according to the amount
of interest accrued but unpaid thereon,
  
in reduction thereof;
  
(2) the interest portion of Realized Losses and Net Interest
Shortfalls
on the Group 2
  
Loans,
  
if any,
  
shall be allocated
  
between the Class Y-2 and Class Z-2
  
Regular
  
Interests pro rata
  
according to the
amount of interest
  
accrued but unpaid
  
thereon,
  
in reduction
  
thereof;
  
(3) the interest
  
portion of Realized Losses and Net Interest
Shortfalls on the Group 3 Loans, if any, shall be allocated
  
between the Class Y-3 and Class Z-3
  
Regular
  
Interests pro rata according
to the amount of interest
  
accrued but unpaid
  
thereon,
  
in
  
reduction
  
thereof;
  
(4) the interest
  
portion of Realized
  
Losses and Net
Interest
  
Shortfalls on the Group 4 Loans, if any, shall be allocated
  
between the Class Y-4 and Class Z-4
  
Regular
  
Interests pro rata
according to the amount of interest accrued but unpaid thereon,
  
in reduction thereof;
  
and (4) the interest portion of Realized Losses
and Net Interest
  
Shortfalls on the Group 5 Loans,
  
if any, shall be allocated
  
between the Class Y-5 and Class Z-5
  
Regular
  
Interests
pro rata according to the amount of interest accrued but unpaid
thereon,
  
in reduction
  
thereof.
  
Any interest portion of such Realized
Losses in excess of the amount
  
allocated
  
pursuant
  
to the
  
preceding
  
sentence
  
shall be treated as a
  
principal
  
portion of Realized
Losses not
  
attributable
  
to any
  
specific
  
Mortgage
  
Loan in such
  
Group and
  
allocated
  
pursuant
  
to the
  
succeeding
  
sentences.
  
The
principal
  
portion of Realized
  
Losses with
  
respect to the
  
Group 1,
  
Group 2,
  
Group 3,
  
Group 4 and Group 5 Mortgage
  
Loans shall be
allocated to the REMIC I
  
Regular
  
Interests as follows:
  
(1) the
  
principal
  
portion of Realized
  
Losses on the Group 1 Loans shall be
allocated,
  
first, to the Class Y-1
  
Regular
  
Interest to the extent of the Class Y-1
  
Principal
  
Reduction
  
Amount in reduction of the
Uncertificated
  
Principal
  
Balance of such Regular
  
Interest and,
  
second,
  
the remainder,
  
if any, of such
  
principal
  
portion of such
Realized Losses shall be allocated to the Class Z-1
  
Regular
  
Interest in reduction of the
  
Uncertificated
  
Principal
  
Balance thereof;
(2) the principal
  
portion of Realized Losses on the Group 2 Loans shall be allocated,
  
first, to the Class Y-2 Regular Interest to the
extent of the Class Y-2 Principal
  
Reduction Amount in reduction of the Uncertificated
  
Principal Balance of such Regular Interest and,
second,
  
the remainder,
  
if any, of such principal portion of such Realized Losses shall be
allocated to the Class Z-2 Regular Interest
in reduction of the Uncertificated
  
Principal Balance thereof;
  
(3) the principal portion of Realized Losses on the Group 3 Loans
shall
be allocated,
  
first, to the Class Y-3 Regular Interest to the extent of the Class
Y-3
  
Principal
  
Reduction Amount in reduction of the
Uncertificated
  
Principal
  
Balance of such Regular
  
Interest and,
  
second,
  
the remainder,
  
if any, of such
  
principal
  
portion of such
Realized Losses shall be allocated to the Class Z-3
  
Regular
  
Interest in reduction of the
  
Uncertificated
  
Principal
  
Balance thereof;
(4) the principal
  
portion of Realized Losses on the Group 4 Loans shall be allocated,
  
first, to the Class Y-4 Regular Interest to the
extent of the Class Y-4 Principal
  
Reduction Amount in reduction of the Uncertificated
  
Principal Balance of such Regular Interest and,
second,
  
the remainder,
  
if any, of such principal portion of such Realized Losses shall be
allocated to the Class Z-4 Regular Interest
in reduction of the
  
Uncertificated
  
Principal
  
Balance thereof;
  
and (5) the principal portion of Realized Losses on the Group 5
Loans
shall be allocated,
  
first, to the Class Y-5
  
Regular Interest to the extent of the Class Y-5
  
Principal
  
Reduction Amount in reduction
of the
  
Uncertificated
  
Principal
  
Balance of such Regular Interest and, second,
  
the remainder,
  
if any, of such principal
  
portion of
such
  
Realized
  
Losses shall be allocated to the
  
Class Z-5
  
Regular
  
Interest in
  
reduction of the
  
Uncertificated
  
Principal
  
Balance
thereof.
  
For any Distribution Date,
  
reductions in the Uncertificated
  
Principal Balances of the Class Y and Class Z Regular Interests
pursuant to this
  
definition 
 
of Realized
  
Loss shall be
  
determined,
  
and shall be deemed to occur,
  
prior to any
  
reductions
  
of such
Uncertificated Principal Balances by distributions on such
Distribution Date.
 
                  
REMIC II
  
Available
  
Distribution
  
Amount:
  
The sum of the Interest
  
Remittance
  
Amount and the Principal
  
Remittance
Amount.
 
                  
REMIC II
  
Distribution Amount: For any Distribution Date, the REMIC II
Available
  
Distribution Amount shall be deemed
distributed to REMIC III,
  
as the holder of the REMIC II Regular
  
Interests,
  
and to Holders of the Class AR-L
  
Certificates in respect
of Component II thereof, pursuant to Section 4.01(IV)(a)(ii), in
the following amounts and priority:
 
                  
(a) first,
  
to the REMIC II
  
Regular
  
Interests,
  
pro rata,
  
in an amount equal to (A) their
  
Uncertificated
  
Accrued
Interest for such Distribution Date, plus (B) any amounts in
respect thereof remaining unpaid from previous Distribution Dates;
 
                  
(b) second:
 
                       
    
(i)
      
to REMIC II Regular Interests LT2, LT3 and LT4, their respective
Principal Distribution Amounts;
 
                           
(ii)
     
to REMIC II Regular Interest LT1 its Principal Distribution Amount;
 
                           
(iii)
    
any remainder to REMIC II Regular Interest LT1, until the
Uncertificated
  
Principal Balance thereof
         
has been reduced to zero;
 
                           
(iv)
     
any
  
remainder
  
to REMIC II
  
Regular
  
Interests
  
LT2,
  
LT3 and LT4,
  
pro rata,
  
according
  
to their
         
respective
  
Uncertificated
  
Principal
  
Balances
  
as reduced by the
  
distributions
  
made
  
pursuant
  
to (i) above,
  
until
  
their
         
respective Uncertificated Principal Balances have been reduced to
zero;
 
                   
(c) third, to the extent of the REMIC II
  
Available
  
Distribution
  
Amount for such Distribution Date remaining after
payment of the amounts pursuant to paragraphs (a) and (b) of this
definition of "REMIC II Distribution Amount" as follows:
 
                      
     
(i)
      
first, to the REMIC II Regular Interests,
  
pro rata, to the extent of any Realized Losses allocated
         
to such REMIC II Regular
  
Interests on such Distribution
  
Date or any prior
  
Distribution
  
Date and not previously
  
reimbursed
      
   
pursuant to this
  
paragraph;
  
provided,
  
however,
  
that any amounts
  
distributed
  
pursuant to this
  
paragraph
  
(c)(i) of
  
this
         
definition of "REMIC II
  
Distribution
  
Amount" shall not cause a reduction in the
  
Uncertificated
  
Principal Balance of any of
         
the REMIC II Regular Interests; and
 
                           
(ii)
     
second, to the Class AR-L Certificates in respect of Component II
thereof, any remaining amount.
 
                  
REMIC II Principal
  
Reduction Amounts:
  
For any Distribution Date, the amounts by which the Uncertificated
  
Principal
Balances of the REMIC II
  
Regular
  
Interests will be reduced on such
  
Distribution
  
Date by the
  
allocation of Realized
  
Losses and the
distribution of principal, determined as follows:
 
         
For purposes of the succeeding formulas the following symbols shall
have the meanings set forth below:
 
         
Y1 =
     
the Uncertificated
  
Principal Balance of REMIC II Regular Interest LT1 after
  
distributions on the prior Distribution
Date.
 
         
Y2 =
     
the Uncertificated
  
Principal Balance of REMIC II Regular Interest LT2 after
  
distributions on the prior Distribution
Date.
 
         
Y3 =
     
the Uncertificated
  
Principal Balance of REMIC II Regular Interest LT3 after
  
distributions on the prior Distribution
Date.
 
         
Y4 =
     
the Uncertificated
  
Principal Balance of REMIC II Regular Interest LT4 after
  
distributions on the prior Distribution
Date (note:
  
Y3 = Y4).
 
         
ΔY1 =