1m4m
From Proteopedia
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'''Mouse Survivin''' | '''Mouse Survivin''' | ||
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[[Category: Zakula, D.]] | [[Category: Zakula, D.]] | ||
[[Category: Zhang, H.]] | [[Category: Zhang, H.]] | ||
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Revision as of 21:37, 2 May 2008
Mouse Survivin
Overview
The coupling of apoptosis (programmed cell death) to the cell division cycle is essential for homeostasis and genomic integrity. Here, we report the crystal structure of survivin, an inhibitor of apoptosis, which has been implicated in both control of cell death and regulation of cell division. In addition to a conserved N-terminal Zn finger baculovirus IAP repeat, survivin forms a dimer through a symmetric interaction with an intermolecularly bound Zn atom located along the molecular dyad axis. The interaction of the dimer-related C-terminal alpha helices forms an extended surface of approximately 70 A in length. Mutagenesis analysis revealed that survivin dimerization and an extended negatively charged surface surrounding Asp-71 are required to counteract apoptosis and preserve ploidy. These findings may provide a structural basis for a dual role of survivin in inhibition of apoptosis and regulation of cell division.
About this Structure
1M4M is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
Reference
Crystal structure and mutagenic analysis of the inhibitor-of-apoptosis protein survivin., Muchmore SW, Chen J, Jakob C, Zakula D, Matayoshi ED, Wu W, Zhang H, Li F, Ng SC, Altieri DC, Mol Cell. 2000 Jul;6(1):173-82. PMID:10949038 Page seeded by OCA on Sat May 3 00:37:26 2008
