rdf:type |
|
lifeskim:mentions |
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pubmed:issue |
17
|
pubmed:dateCreated |
2007-4-23
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pubmed:databankReference |
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pubmed:abstractText |
The DNA-binding protein, RdgC, is associated with recombination and replication fork repair in Escherichia coli and with the virulence-associated, pilin antigenic variation mediated by RecA and other recombination proteins in Neisseria species. We solved the structure of the E. coli protein and refined it to 2.4A. RdgC crystallizes as a dimer with a head-to-head, tail-to-tail organization forming a ring with a 30 A diameter hole at the center. The protein fold is unique and reminiscent of a horseshoe with twin gates closing the open end. The central hole is lined with positively charged residues and provides a highly plausible DNA binding channel consistent with the nonspecific mode of binding detected in vitro and with the ability of RdgC to modulate RecA function in vivo.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
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pubmed:month |
Apr
|
pubmed:issn |
0021-9258
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
27
|
pubmed:volume |
282
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
12353-7
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pubmed:meshHeading |
pubmed-meshheading:17308310-DNA Repair,
pubmed-meshheading:17308310-DNA Replication,
pubmed-meshheading:17308310-DNA-Binding Proteins,
pubmed-meshheading:17308310-Dimerization,
pubmed-meshheading:17308310-Escherichia coli,
pubmed-meshheading:17308310-Escherichia coli Proteins,
pubmed-meshheading:17308310-Fimbriae Proteins,
pubmed-meshheading:17308310-Models, Molecular,
pubmed-meshheading:17308310-Neisseria,
pubmed-meshheading:17308310-Protein Structure, Quaternary,
pubmed-meshheading:17308310-Rec A Recombinases,
pubmed-meshheading:17308310-Recombination, Genetic
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pubmed:year |
2007
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pubmed:articleTitle |
Ring structure of the Escherichia coli DNA-binding protein RdgC associated with recombination and replication fork repair.
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pubmed:affiliation |
Institute of Genetics, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|