P53-DNA Recognition: Difference between revisions

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The <scene name='Sandbox_Reserved_170/Complex/6'>DBD in tetrameric form binds to a response element</scene>, which consists of two half sites. These decameric half sites can be separated by a spacer of flexible length but in this case the spacer is of length zero base pairs. The <scene name='Sandbox_Reserved_170/Complex/7'>p53 tetramer binds DNA as a dimer of dimers</scene> with each dimer binding to one half site of the response element.
The <scene name='Sandbox_Reserved_170/Complex/6'>DBD in tetrameric form binds to a response element</scene>, which consists of two half sites. These decameric half sites can be separated by a spacer of flexible length but in this case the spacer is of length zero base pairs. The <scene name='Sandbox_Reserved_170/Complex/7'>p53 tetramer binds DNA as a dimer of dimers</scene> with each dimer binding to one half site of the response element.


The p53 DBD assumes an <scene name='Sandbox_Reserved_170/Complex/5'>immunoglobulin fold</scene>, which is a <scene name='Sandbox_Reserved_170/Beta/1'>beta sandwich formed by two beta sheets</scene>, each consisting of antiparallel beta strands.  
The p53 DBD assumes the conformation of an <scene name='Sandbox_Reserved_170/Beta/1'>immunoglobulin-like fold consisting of a beta sandwich</scene>, which binds the response element in the major groove. A <scene name='Sandbox_Reserved_170/Zn/1'>Zn2+ ion coordinates the Cys176, His179, Cys238, Cys242 residues</scene> and, thus, stabilizes the fold of the DBD.  
 
<scene name='Sandbox_Reserved_170/Complex/8'>Zn ion</scene>


<scene name='Sandbox_Reserved_170/Intra-dimer/4'>Intra-dimer</scene>
<scene name='Sandbox_Reserved_170/Intra-dimer/4'>Intra-dimer</scene>