7hsc: Difference between revisions

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[[Image:7hsc.gif|left|200px]]
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[[Image:7hsc.png|left|200px]]


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{{STRUCTURE_7hsc|  PDB=7hsc  |  SCENE=  }}  
{{STRUCTURE_7hsc|  PDB=7hsc  |  SCENE=  }}  


'''HIGH RESOLUTION SOLUTION STRUCTURE OF THE HEAT SHOCK COGNATE-70 KD SUBSTRATE BINDING DOMAIN OBTAINED BY MULTIDIMENSIONAL NMR TECHNIQUES'''
===HIGH RESOLUTION SOLUTION STRUCTURE OF THE HEAT SHOCK COGNATE-70 KD SUBSTRATE BINDING DOMAIN OBTAINED BY MULTIDIMENSIONAL NMR TECHNIQUES===




==Overview==
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The three-dimensional structure for the substrate-binding domain of the mammalian chaperone protein Hsc70 of the 70 kDa heat shock class (HSP70) is presented. This domain includes residues 383-540 (18 kDa) and is necessary for the binding of the chaperone with substrate proteins and peptides. The high-resolution NMR solution structure is based on 4150 experimental distance constraints leading to an average root-mean-square precision of 0.38 A for the backbone atoms and 0.76 A for all atoms in the beta-sandwich sub-domain. The protein is observed to bind residue Leu539 in its hydrophobic substrate-binding groove by intramolecular interaction. The position of a helical latch differs dramatically from what is observed in the crystal and solution structures of the homologous prokaryotic chaperone DnaK. In the Hsc70 structure, the helix lies in a hydrophobic groove and is anchored by a buried salt-bridge. Residues involved in this salt-bridge appear to be important for the allosteric functioning of the protein. A mechanism for interdomain allosteric modulation of substrate-binding is proposed. It involves large-scale movements of the helical domain, redefining the location of the hinge area that enables such motions.
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{{ABSTRACT_PUBMED_10373374}}


==About this Structure==
==About this Structure==
7HSC is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7HSC OCA].  
7HSC is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7HSC OCA].  


==Reference==
==Reference==
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[[Category: Peptide binding]]
[[Category: Peptide binding]]
[[Category: Protein folding]]
[[Category: Protein folding]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 22:45:12 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jul 3 14:34:41 2008''

Revision as of 11:34, 3 July 2008

File:7hsc.png

Template:STRUCTURE 7hsc

HIGH RESOLUTION SOLUTION STRUCTURE OF THE HEAT SHOCK COGNATE-70 KD SUBSTRATE BINDING DOMAIN OBTAINED BY MULTIDIMENSIONAL NMR TECHNIQUES

Template:ABSTRACT PUBMED 10373374

About this Structure

7HSC is a Single protein structure of sequence from Rattus norvegicus. Full experimental information is available from OCA.

Reference

High-resolution solution structure of the 18 kDa substrate-binding domain of the mammalian chaperone protein Hsc70., Morshauser RC, Hu W, Wang H, Pang Y, Flynn GC, Zuiderweg ER, J Mol Biol. 1999 Jun 25;289(5):1387-403. PMID:10373374

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