2cg9

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{{STRUCTURE_2cg9| PDB=2cg9 | SCENE= }}
{{STRUCTURE_2cg9| PDB=2cg9 | 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 22:04:28 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 21:52:54 2008''

Revision as of 18:52, 28 July 2008

Image:2cg9.png


PDB ID 2cg9

Drag the structure with the mouse to rotate
2cg9, resolution 3.10Å ()
Ligands:
Related: 1a4h, 1ah6, 1ah8, 1am1, 1amw, 1bgq, 1hk7, 1us7, 1usu, 1usv, 2akp, 2brc, 2bre, 2cge
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



CRYSTAL STRUCTURE OF AN HSP90-SBA1 CLOSED CHAPERONE COMPLEX

Template:ABSTRACT PUBMED 16625188

About this Structure

2CG9 is a Protein complex structure of sequences 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

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