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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman">UNITED
      STATES</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman">SECURITIES
      AND EXCHANGE COMMISSION</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Washington,
      D.C. 20549</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman">FORM
      8-K</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">CURRENT
      REPORT</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">PURSUANT
      TO SECTION 13 OR 15(d) OF THE</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECURITIES
      EXCHANGE ACT OF 1934</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date
      of
      Report (Date of earliest event reported)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">July
      28,
      2006</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">MORGAN
      STANLEY CAPITAL I INC. (as Depositor under the Trust Agreement dated as of
      July
      1, 2006, providing for the issuance of Morgan Stanley Mortgage Loan Trust
      Mortgage Pass-Through Certificates, Series 2006-10SL)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Morgan
      Stanley Mortgage Loan Trust
      2006-10SL&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Issuing
      Entity)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Morgan
      Stanley Capital I
      Inc.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
      Name of Depositor as Specified in its Charter)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Morgan
      Stanley Mortgage Capital
      Inc.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
      Name of Sponsor as Specified in its Charter)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Morgan
      Stanley Capital I
      Inc.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
      Name of Registrant as Specified in its Charter)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
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              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Delaware&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</u></font></div>
            </td>
            <td valign="top" width="27%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>333-130684</u></font></div>
            </td>
            <td valign="top" width="27%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>133291626</u></font></div>
            </td>
          </tr>
          <tr>
            <td valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(State
                or Other Jurisdiction</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Of
                Incorporation)</font></div>
            </td>
            <td valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Commission</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">File
                Number)</font></div>
            </td>
            <td valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(I.R.S.
                Employer</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Identification
                No.)</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

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            <td valign="top" width="27%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1585
                Broadway, 2nd Floor</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>New
                York, New York</u></font></div>
            </td>
            <td valign="top" width="27%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="27%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;10036&#160;&#160;&#160;&#160;&#160;</u></font></div>
            </td>
          </tr>
          <tr>
            <td valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Address
                of Principal Executive Offices)</font></div>
            </td>
            <td valign="top" width="27%">&#160;</td>
            <td valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Zip
                Code)</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Registrant&#8217;s
      telephone number, including area code: (212) 761-4000</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
      No
      Change&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Former
      Name or Former Address, if Changed Since Last Report)</font></div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
        <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
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        <div style="WIDTH: 100%; TEXT-ALIGN: center">&#160;</div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
      </div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions:</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-FAMILY: Wingdings">o
</font>Written
      communications
      pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font face="Wingdings">o
</font>Soliciting
      material pursuant to Rule 14a-12 under the
      Exchange Act (17 CFR 240.14a-12)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font face="Wingdings">o
</font>Pre-commencement
      communications pursuant to Rule
      14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font face="Wingdings">o
</font>Pre-commencement
      communications pursuant to Rule
      13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item
      8.01.&#160;&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Other
      Events</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>1</sup></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      Registrant registered the issuance of Morgan Stanley Mortgage Loan Trust
      2006-10SL Mortgage Pass-Through Certificates, Series 2006-10SL on a delayed
      or
      continuous basis pursuant to Rule 415 under the Securities Act of 1933, as
      amended (the &#8220;Act&#8221;), by a Registration Statement on Form S-3 (Registration File
      No. 333-130684) (the &#8220;Registration Statement&#8221;). Pursuant to the Registration
      Statement, the Registrant issued $275,384,000 aggregate principal amount of
      Class A-1, Class M-1, Class M-2, Class M-3, Class B-1, Class B-2 and Class
      B-3
      Certificates of its Morgan Stanley Mortgage Loan Trust 2006-10SL Mortgage
      Pass-Through Certificates, Series 2006-10SL on July 28, 2006. This Current
      Report on Form 8-K is being filed to satisfy an undertaking, contained in the
      definitive Prospectus dated March 14, 2006, as supplemented by the Prospectus
      Supplement dated July 20, 2006 (the &#8220;Prospectus Supplement&#8221;), to file a copy of
      the Trust Agreement (as defined below) and other material operative agreements
      executed in connection with the issuance of the Certificates, a form of which
      was filed as an exhibit to the Registration Statement.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      Certificates were issued pursuant to a Trust Agreement (the &#8220;Trust Agreement&#8221;),
      attached hereto as Exhibit 4.1, dated as of July 1, 2006 between Morgan Stanley
      Capital I Inc., as Depositor, and LaSalle Bank National Association, as Trustee.
      The &#8220;Certificates&#8221; consist of the following classes: Class A-1, Class M-1, Class
      M-2, Class M-3, Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class
      OC,
      Class P and Class R. The Certificates evidence all of the beneficial ownership
      interest in a trust fund (the &#8220;Trust Fund&#8221;) that consists primarily of a pool of
      certain conventional, second lien, fixed rate, fully amortizing and balloon,
      residential mortgage loans, with an aggregate outstanding principal balance
      of
      $298,543,144.73 as of July 1, 2006, together with certain other assets.
</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">_______________________<br>
      <div>
        <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

            <tr valign="top" style="line-height: 1.25;">
              <td style="width: 18pt;">
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman"><sup>1</sup></font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Capitalized
                  terms used but not otherwise defined herein shall have the same
                  meanings
                  ascribed to them in the Trust
                  Agreement.</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div></div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
        <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
      </div>
      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center">&#160;</div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
      </div>
    </div><br>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 72pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item
      9.01. Financial Statements and Exhibits</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
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            <td style="width: 36pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(a)</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Not
                applicable.</font></div>
            </td>
          </tr>

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    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 36pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(b)</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Not
                applicable.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 72pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 36pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(c)
                </font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Not
                applicable.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 36pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(d)</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exhibits:</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.1</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Trust
                Agreement dated as of July 1, 2006 between Morgan Stanley Capital
                I Inc.,
                as Depositor, and LaSalle Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Mortgage
                Loan Purchase Agreement dated as of July 1, 2006 between Morgan Stanley
                Capital I Inc., as Purchaser, and Morgan Stanley Mortgage Capital
                Inc., as
                Seller.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.2</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Servicing
                Agreement dated as of July 1, 2006 between Morgan Stanley Mortgage
                Capital
                I Inc., as Owner, and GMAC Mortgage Corporation, as
                Servicer.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.3</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Purchaser, GMAC Mortgage Corporation,
                as
                Servicer, and LaSalle Bank National Association, as Trustee and Auction
                Administrator, and acknowledged by Morgan Stanley Capital I Inc.,
                as
                Depositor.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.4</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Capital I Inc., as Depositor, Morgan Stanley Mortgage Capital
                Inc., as Purchaser, First National Bank of Nevada, as Seller, and
                LaSalle
                Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.5</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Decision One Mortgage Company, LLC and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.6</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., Morgan Stanley Capital I Inc., as
                Depositor, Aegis Mortgage Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 72pt;">&#160;</td>
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.7</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Aames Capital Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
        <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
      </div>
      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center">&#160;</div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
      </div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>SIGNATURES</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
      to the requirements of the Securities Exchange Act of 1934, as amended, the
      Registrant has duly caused this report to be signed on its behalf by the
      undersigned hereunto duly authorized.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">
      <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="100%">

          <tr valign="top" bgcolor="#ffffff">
            <td width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="49%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">MORGAN
              STANLEY
              CAPITAL I INC.</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">By:&#160;&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">/s/&#160;Val
              Kay</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td colspan="2"><font style="FONT-FAMILY: " size="1">&#160;</font></td>
            <td align="left">
              <hr style="COLOR: black" align="left" noshade size="2" width="80%"><font size="2">Name:</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 9pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Val
              Kay</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">Title:
              Managing Director</font></td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Dated:
      July 28, 2006</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div><br>&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
        <div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
      </div>
      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center">&#160;</div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
      </div>
    </div><br>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>EXHIBIT
      INDEX</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div align="left">
      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td align="justify" valign="top" width="15%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Exhibit
                No.</u></font></div>
            </td>
            <td align="justify" valign="top" width="70%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Description</u></font></div>
            </td>
            <td align="right" valign="top" width="15%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Page
                No.</u></font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.1</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Trust
                Agreement dated as of July 1, 2006 between Morgan Stanley Capital
                I Inc.,
                as Depositor, and LaSalle Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Mortgage
                Loan Purchase Agreement dated as of July 1, 2006 between Morgan Stanley
                Capital I Inc., as Purchaser, and Morgan Stanley Mortgage Capital
                Inc., as
                Seller.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.2</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Servicing
                Agreement dated as of July 1, 2006 between Morgan Stanley Mortgage
                Capital
                I Inc., as Owner, and GMAC Mortgage Corporation, as
                Servicer.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.3</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Purchaser, GMAC Mortgage Corporation,
                as
                Servicer, and LaSalle Bank National Association, as Trustee and Auction
                Administrator, and acknowledged by Morgan Stanley Capital I Inc.,
                as
                Depositor.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.4</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Capital I Inc., as Depositor, Morgan Stanley Mortgage Capital
                Inc., as Purchaser, First National Bank of Nevada, as Seller, and
                LaSalle
                Bank National Association, as Trustee.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.5</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Decision One Mortgage Company, LLC and acknowledged
                by
                LaSalle Bank National Association, as Trustee.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.6</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., Morgan Stanley Capital I Inc., as
                Depositor, Aegis Mortgage Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as Trustee.</font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">&#160;</td>
            <td align="justify" valign="top" width="70%">&#160;</td>
            <td align="justify" valign="top" width="15%">&#160;</td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="15%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.7</font></div>
            </td>
            <td align="justify" colspan="2" valign="top" width="85%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Aames Capital Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.</font></div>
            </td>
          </tr>

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{"company-data": {"conformed-name": "Morgan Stanley Mortgage Loan Trust 2006-10SL", "cik": "0001368906", "assigned-sic": "6189", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-130684-08", "film-number": "061025346"}, "business-address": {"street1": "1585 BROADWAY", "street2": "2ND FLOOR", "city": "NEW YORK", "state": "NY", "zip": "10036", "phone": "2127614700"}, "mail-address": {"street1": "1585 BROADWAY", "street2": "2ND FL", "city": "NEW YORK", "state": "NY", "zip": "10036"}}
UNITED
      STATES
SECURITIES
      AND EXCHANGE COMMISSION
Washington,
      D.C. 20549
FORM
      8-K
CURRENT
      REPORT
PURSUANT
      TO SECTION 13 OR 15(d) OF THE
SECURITIES
      EXCHANGE ACT OF 1934
Date
      of
      Report (Date of earliest event reported)
July
      28,
      2006
MORGAN
      STANLEY CAPITAL I INC. (as Depositor under the Trust Agreement dated as of
      July
      1, 2006, providing for the issuance of Morgan Stanley Mortgage Loan Trust
      Mortgage Pass-Through Certificates, Series 2006-10SL)
Morgan
      Stanley Mortgage Loan Trust
      2006-10SL
(Issuing
      Entity)
Morgan
      Stanley Capital I
      Inc.
(Exact
      Name of Depositor as Specified in its Charter)
Morgan
      Stanley Mortgage Capital
      Inc.
(Exact
      Name of Sponsor as Specified in its Charter)
Morgan
      Stanley Capital I
      Inc.
(Exact
      Name of Registrant as Specified in its Charter)
Delaware
333-130684
133291626
(State
                or Other Jurisdiction
Of
                Incorporation)
(Commission
File
                Number)
(I.R.S.
                Employer
Identification
                No.)
1585
                Broadway, 2nd Floor
New
                York, New York
10036
(Address
                of Principal Executive Offices)
(Zip
                Code)
Registrant's
      telephone number, including area code: (212) 761-4000
No
      Change
(Former
      Name or Former Address, if Changed Since Last Report)
Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions:
o
Written
      communications
      pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting
      material pursuant to Rule 14a-12 under the
      Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement
      communications pursuant to Rule
      14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement
      communications pursuant to Rule
      13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item
      8.01.
Other
      Events
1
The
      Registrant registered the issuance of Morgan Stanley Mortgage Loan Trust
      2006-10SL Mortgage Pass-Through Certificates, Series 2006-10SL on a delayed
      or
      continuous basis pursuant to Rule 415 under the Securities Act of 1933, as
      amended (the "Act"), by a Registration Statement on Form S-3 (Registration File
      No. 333-130684) (the "Registration Statement"). Pursuant to the Registration
      Statement, the Registrant issued $275,384,000 aggregate principal amount of
      Class A-1, Class M-1, Class M-2, Class M-3, Class B-1, Class B-2 and Class
      B-3
      Certificates of its Morgan Stanley Mortgage Loan Trust 2006-10SL Mortgage
      Pass-Through Certificates, Series 2006-10SL on July 28, 2006. This Current
      Report on Form 8-K is being filed to satisfy an undertaking, contained in the
      definitive Prospectus dated March 14, 2006, as supplemented by the Prospectus
      Supplement dated July 20, 2006 (the "Prospectus Supplement"), to file a copy of
      the Trust Agreement (as defined below) and other material operative agreements
      executed in connection with the issuance of the Certificates, a form of which
      was filed as an exhibit to the Registration Statement.
The
      Certificates were issued pursuant to a Trust Agreement (the "Trust Agreement"),
      attached hereto as Exhibit 4.1, dated as of July 1, 2006 between Morgan Stanley
      Capital I Inc., as Depositor, and LaSalle Bank National Association, as Trustee.
      The "Certificates" consist of the following classes: Class A-1, Class M-1, Class
      M-2, Class M-3, Class B-1, Class B-2, Class B-3, Class B-4, Class B-5, Class
      OC,
      Class P and Class R. The Certificates evidence all of the beneficial ownership
      interest in a trust fund (the "Trust Fund") that consists primarily of a pool of
      certain conventional, second lien, fixed rate, fully amortizing and balloon,
      residential mortgage loans, with an aggregate outstanding principal balance
      of
      $298,543,144.73 as of July 1, 2006, together with certain other assets.
_______________________
1
Capitalized
                  terms used but not otherwise defined herein shall have the same
                  meanings
                  ascribed to them in the Trust
                  Agreement.
Item
      9.01. Financial Statements and Exhibits
(a)
Not
                applicable.
(b)
Not
                applicable.
(c)
Not
                applicable.
(d)
Exhibits:
4.1
Trust
                Agreement dated as of July 1, 2006 between Morgan Stanley Capital
                I Inc.,
                as Depositor, and LaSalle Bank National Association, as
                Trustee.
99.1
Mortgage
                Loan Purchase Agreement dated as of July 1, 2006 between Morgan Stanley
                Capital I Inc., as Purchaser, and Morgan Stanley Mortgage Capital
                Inc., as
                Seller.
99.2
Servicing
                Agreement dated as of July 1, 2006 between Morgan Stanley Mortgage
                Capital
                I Inc., as Owner, and GMAC Mortgage Corporation, as
                Servicer.
99.3
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Purchaser, GMAC Mortgage Corporation,
                as
                Servicer, and LaSalle Bank National Association, as Trustee and Auction
                Administrator, and acknowledged by Morgan Stanley Capital I Inc.,
                as
                Depositor.
99.4
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Capital I Inc., as Depositor, Morgan Stanley Mortgage Capital
                Inc., as Purchaser, First National Bank of Nevada, as Seller, and
                LaSalle
                Bank National Association, as
                Trustee.
99.5
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Decision One Mortgage Company, LLC and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.
99.6
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., Morgan Stanley Capital I Inc., as
                Depositor, Aegis Mortgage Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.
99.7
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Aames Capital Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.
SIGNATURES
Pursuant
      to the requirements of the Securities Exchange Act of 1934, as amended, the
      Registrant has duly caused this report to be signed on its behalf by the
      undersigned hereunto duly authorized.
MORGAN
              STANLEY
              CAPITAL I INC.
By:
/s/ Val
              Kay
Name:
Val
              Kay
Title:
              Managing Director
Dated:
      July 28, 2006
EXHIBIT
      INDEX
Exhibit
                No.
Description
Page
                No.
4.1
Trust
                Agreement dated as of July 1, 2006 between Morgan Stanley Capital
                I Inc.,
                as Depositor, and LaSalle Bank National Association, as
                Trustee.
99.1
Mortgage
                Loan Purchase Agreement dated as of July 1, 2006 between Morgan Stanley
                Capital I Inc., as Purchaser, and Morgan Stanley Mortgage Capital
                Inc., as
                Seller.
99.2
Servicing
                Agreement dated as of July 1, 2006 between Morgan Stanley Mortgage
                Capital
                I Inc., as Owner, and GMAC Mortgage Corporation, as
                Servicer.
99.3
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Purchaser, GMAC Mortgage Corporation,
                as
                Servicer, and LaSalle Bank National Association, as Trustee and Auction
                Administrator, and acknowledged by Morgan Stanley Capital I Inc.,
                as
                Depositor.
99.4
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Capital I Inc., as Depositor, Morgan Stanley Mortgage Capital
                Inc., as Purchaser, First National Bank of Nevada, as Seller, and
                LaSalle
                Bank National Association, as Trustee.
99.5
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Decision One Mortgage Company, LLC and acknowledged
                by
                LaSalle Bank National Association, as Trustee.
99.6
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., Morgan Stanley Capital I Inc., as
                Depositor, Aegis Mortgage Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as Trustee.
99.7
Assignment,
                Assumption and Recognition Agreement dated July 1, 2006 among Morgan
                Stanley Mortgage Capital Inc., as Assignor, Morgan Stanley Capital
                I Inc.,
                as Assignee, Aames Capital Corporation, as Seller and acknowledged
                by
                LaSalle Bank National Association, as
                Trustee.