3HSC image
Deposition Date 1995-03-24
Release Date 1995-07-10
Last Version Date 2024-02-21
Entry Detail
PDB ID:
3HSC
Title:
THREE-DIMENSIONAL STRUCTURE OF THE ATPASE FRAGMENT OF A 70K HEAT-SHOCK COGNATE PROTEIN
Biological Source:
Source Organism:
Bos taurus (Taxon ID: 9913)
Method Details:
Experimental Method:
Resolution:
1.93 Å
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:HEAT-SHOCK COGNATE 7OKD PROTEIN
Gene (Uniprot):HSPA8
Chain IDs:A
Chain Length:386
Number of Molecules:1
Biological Source:Bos taurus
Primary Citation
Three-dimensional structure of the ATPase fragment of a 70K heat-shock cognate protein.
Nature 346 623 628 (1990)
PMID: 2143562 DOI: 10.1038/346623a0

Abstact

The three-dimensional structure of the amino-terminal 44K ATPase fragment of the 70K bovine heat-shock cognate protein has been solved to a resolution of 2.2 A. The ATPase fragment has two structural lobes with a deep cleft between them; ATP binds at the base of the cleft. Surprisingly, the nucleotide-binding 'core' of the ATPase fragment has a tertiary structure similar to that of hexokinase, although the remainder of the structures of the two proteins are completely dissimilar, suggesting that both the phosphotransferase mechanism and the substrate-induced conformational change intrinsic to the hexokinases may be used by the 70K heat shock-related proteins.

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Primary Citation of related structures