1a5t
From Proteopedia
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'''CRYSTAL STRUCTURE OF THE DELTA PRIME SUBUNIT OF THE CLAMP-LOADER COMPLEX OF ESCHERICHIA COLI DNA POLYMERASE III''' | '''CRYSTAL STRUCTURE OF THE DELTA PRIME SUBUNIT OF THE CLAMP-LOADER COMPLEX OF ESCHERICHIA COLI DNA POLYMERASE III''' | ||
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[[Category: Onrust, R.]] | [[Category: Onrust, R.]] | ||
[[Category: Sali, A.]] | [[Category: Sali, A.]] | ||
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Revision as of 06:51, 2 May 2008
CRYSTAL STRUCTURE OF THE DELTA PRIME SUBUNIT OF THE CLAMP-LOADER COMPLEX OF ESCHERICHIA COLI DNA POLYMERASE III
Overview
The crystal structure of the delta' subunit of the clamp-loader complex of E. coli DNA polymerase III has been determined. Three consecutive domains in the structure are arranged in a C-shaped architecture. The N-terminal domain contains a nonfunctional nucleotide binding site. The catalytic component of the clamp-loader complex is the gamma subunit, which is homologous to delta'. A sequence-structure alignment suggests that nucleotides bind to gamma at an interdomain interface within the inner surface of the "C." The alignment is extended to other clamp-loader complexes and to the RuvB family of DNA helicases, and suggests that each of these is assembled from C-shaped components that can open and close the jaws of the "C" in response to ATP binding and hydrolysis.
About this Structure
1A5T is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Crystal structure of the delta' subunit of the clamp-loader complex of E. coli DNA polymerase III., Guenther B, Onrust R, Sali A, O'Donnell M, Kuriyan J, Cell. 1997 Oct 31;91(3):335-45. PMID:9363942 Page seeded by OCA on Fri May 2 09:51:15 2008
