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2cge

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{{STRUCTURE_2cge| PDB=2cge | SCENE= }}
{{STRUCTURE_2cge| PDB=2cge | SCENE= }}
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'''CRYSTAL STRUCTURE OF AN HSP90-SBA1 CLOSED CHAPERONE COMPLEX'''
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===CRYSTAL STRUCTURE OF AN HSP90-SBA1 CLOSED CHAPERONE COMPLEX===
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==Overview==
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Hsp90 (heat shock protein of 90 kDa) is a ubiquitous molecular chaperone responsible for the assembly and regulation of many eukaryotic signalling systems and is an emerging target for rational chemotherapy of many cancers. Although the structures of isolated domains of Hsp90 have been determined, the arrangement and ATP-dependent dynamics of these in the full Hsp90 dimer have been elusive and contentious. Here we present the crystal structure of full-length yeast Hsp90 in complex with an ATP analogue and the co-chaperone p23/Sba1. The structure reveals the complex architecture of the 'closed' state of the Hsp90 chaperone, the extensive interactions between domains and between protein chains, the detailed conformational changes in the amino-terminal domain that accompany ATP binding, and the structural basis for stabilization of the closed state by p23/Sba1. Contrary to expectations, the closed Hsp90 would not enclose its client proteins but provides a bipartite binding surface whose formation and disruption are coupled to the chaperone ATPase cycle.
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The line below this paragraph, {{ABSTRACT_PUBMED_16625188}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 16625188 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16625188}}
==About this Structure==
==About this Structure==
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[[Category: Hsp90]]
[[Category: Hsp90]]
[[Category: Nucleotide-binding]]
[[Category: Nucleotide-binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 22:04:42 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 11:45:37 2008''

Revision as of 08:45, 29 July 2008

Image:2cge.png

Template:STRUCTURE 2cge

CRYSTAL STRUCTURE OF AN HSP90-SBA1 CLOSED CHAPERONE COMPLEX

Template:ABSTRACT PUBMED 16625188

About this Structure

2CGE is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Crystal structure of an Hsp90-nucleotide-p23/Sba1 closed chaperone complex., Ali MM, Roe SM, Vaughan CK, Meyer P, Panaretou B, Piper PW, Prodromou C, Pearl LH, Nature. 2006 Apr 20;440(7087):1013-7. PMID:16625188

Page seeded by OCA on Tue Jul 29 11:45:37 2008

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