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2oca

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[[Image:2oca.gif|left|200px]]
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{{STRUCTURE_2oca| PDB=2oca | SCENE= }}
{{STRUCTURE_2oca| PDB=2oca | SCENE= }}
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'''The crystal structure of T4 UvsW'''
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===The crystal structure of T4 UvsW===
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==Overview==
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The uvsWXY system is implicated in the replication and repair of the bacteriophage T4 genome. Whereas the roles of the recombinase (UvsX) and the recombination mediator protein (UvsY) are known, the precise role of UvsW is unclear. Sequence analysis identifies UvsW as a member of the monomeric SF2 helicase superfamily that translocates nucleic acid substrates via the action of two RecA-like motor domains. Functional homologies to Escherichia coli RecG and biochemical analyses have shown that UvsW interacts with branched nucleic acid substrates, suggesting roles in recombination and the rescue of stalled replication forks. A sequencing error at the 3'-end of the uvsW gene has revealed a second, short open reading frame that encodes a protein of unknown function called UvsW.1. We have determined the crystal structure of UvsW to 2.7A and the NMR solution structure of UvsW.1. UvsW has a four-domain architecture with structural homology to the eukaryotic SF2 helicase, Rad54. A model of the UvsW-ssDNA complex identifies structural elements and conserved residues that may interact with nucleic acid substrates. The NMR solution structure of UvsW.1 reveals a dynamic four-helix bundle with homology to the structure-specific nucleic acid binding module of RecQ helicases.
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(as it appears on PubMed at http://www.pubmed.gov), where 17878153 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17878153}}
==About this Structure==
==About this Structure==
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[[Category: Recombination]]
[[Category: Recombination]]
[[Category: T4-bacteriophage]]
[[Category: T4-bacteriophage]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 10:35:45 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 03:02:38 2008''

Revision as of 00:02, 28 July 2008

Image:2oca.png

Template:STRUCTURE 2oca

The crystal structure of T4 UvsW

Template:ABSTRACT PUBMED 17878153

About this Structure

2OCA is a Single protein structure of sequence from Enterobacteria phage t4. Full crystallographic information is available from OCA.

Reference

Crystallographic and NMR analyses of UvsW and UvsW.1 from bacteriophage T4., Kerr ID, Sivakolundu S, Li Z, Buchsbaum JC, Knox LA, Kriwacki R, White SW, J Biol Chem. 2007 Nov 23;282(47):34392-400. Epub 2007 Sep 17. PMID:17878153

Page seeded by OCA on Mon Jul 28 03:02:38 2008

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OCA

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