1xao

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{{STRUCTURE_1xao| PDB=1xao | SCENE= }}
{{STRUCTURE_1xao| PDB=1xao | SCENE= }}
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'''Hsp40-Ydj1 dimerization domain'''
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===Hsp40-Ydj1 dimerization domain===
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==Overview==
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The molecular chaperone Hsp40 functions as a dimer. The dimer formation is critical for Hsp40 molecular chaperone activity to facilitate Hsp70 to refold non-native polypeptides. We have determined the crystal structure of the C-terminal fragment of yeast Hsp40 Ydj1 that is responsible for Ydj1 dimerization by MAD method. The C-terminal fragment of Ydj1 comprises of the domain III of Ydj1 and the Ydj1 C-terminal dimerization motif. The crystal structure indicates that the dimerization motif of type I Hsp40 Ydj1 differs significantly from that of yeast type II Hsp40. The C terminus of type I Hsp40 Ydj1 from one monomer forms beta-strands with the domain III from the other monomer in the homo-dimer. The L372 from Ydj1 C terminus inserts its side-chain into a hydrophobic pocket on domain III. The modeled full-length Ydj1 dimer structure reveals that a large cleft is formed between the two monomers. The domain IIs of Ydj1 monomers that contain the zinc-finger motifs points directly against each other.
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{{ABSTRACT_PUBMED_15701512}}
==About this Structure==
==About this Structure==
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[[Category: Wu, Y.]]
[[Category: Wu, Y.]]
[[Category: Beta sheet]]
[[Category: Beta sheet]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 14:47:23 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 03:16:54 2008''

Revision as of 00:16, 28 July 2008

Image:1xao.png

Template:STRUCTURE 1xao

Hsp40-Ydj1 dimerization domain

Template:ABSTRACT PUBMED 15701512

About this Structure

1XAO is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

The crystal structure of the C-terminal fragment of yeast Hsp40 Ydj1 reveals novel dimerization motif for Hsp40., Wu Y, Li J, Jin Z, Fu Z, Sha B, J Mol Biol. 2005 Mar 4;346(4):1005-11. Epub 2005 Jan 16. PMID:15701512

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