Molecular Playground/Caspase-7 Dynamics: Difference between revisions

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=== Conformation Dynamics studied in <span class="plainlinks">[http://www.chem.umass.edu/~jhardy/ the Hardy Lab] </span>===
=== Conformation Dynamics studied in <span class="plainlinks">[http://www.chem.umass.edu/~jhardy/ the Hardy Lab] </span>===
<applet load='Caspmorph.pdb' size='300' frame='true' scene='Molecular_Playground/Caspase_Dynamics/Morph2/1' align='right' caption='Conformational Dynamics between active and allosterically inhibited caspase-7 elucidate the mechanism of allostery in this important class of cysteine proteases.' />
<applet load='Caspmorph.pdb' size='300' frame='true' scene='Molecular_Playground/Caspase_Dynamics/Morph2/2' align='right' caption='Conformational Dynamics between active and allosterically inhibited caspase-7 elucidate the mechanism of allostery in this important class of cysteine proteases.' />


Conformational dynamics in Caspase-7 are mediated by an 'Allosteric Toggle' mechanism in which binding of allosteric inhibitor DICA to CYS 290 pushes TYR 223 into 'up' conformation forcing ARG 187 'out' into a form that is physically incompatible with substrate binding.
Conformational dynamics in Caspase-7 are mediated by an 'Allosteric Toggle' mechanism in which binding of allosteric inhibitor DICA to CYS 290 pushes TYR 223 into 'up' conformation forcing ARG 187 'out' into a form that is physically incompatible with substrate binding.

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Daniel Seeman, David Canner, Michal Harel, Maureen E. Hill