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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1985-3-27
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pubmed:abstractText |
The Escherichia coli single-stranded DNA binding protein (SSB), essential for DNA replication, recombination and repair, can undergo a thermally induced irreversible conformational change which does not eliminate its biological activity, but changes the number of nucleotides it covers (binding site size) when binding to a single-stranded nucleic acid lattice. The binding site size of native and conformationally changed SSB was also found to be a function of the molecular mass of the polynucleotide, an observation which is unusual for single-stranded DNA binding proteins and will greatly affect the affinity relationship of this protein for nucleic acids. A radioimmunoassay used to quantitate in SSB level in cells revealed the number of SSB tetramers to be larger than initial estimates by a factor of as much as six. All these data suggest that the biological role of SSB and its mechanism of action is by far more complex than originally assumed.
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pubmed:grant | |
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 |
Feb
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pubmed:issn |
0014-5793
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
11
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pubmed:volume |
181
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
133-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2982651-Binding Sites,
pubmed-meshheading:2982651-DNA-Binding Proteins,
pubmed-meshheading:2982651-Electron Spin Resonance Spectroscopy,
pubmed-meshheading:2982651-Escherichia coli,
pubmed-meshheading:2982651-Protein Conformation,
pubmed-meshheading:2982651-Radioimmunoassay,
pubmed-meshheading:2982651-Spectrophotometry, Ultraviolet,
pubmed-meshheading:2982651-Structure-Activity Relationship
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pubmed:year |
1985
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pubmed:articleTitle |
Variability in the nucleic acid binding site size and the amount of single-stranded DNA-binding protein in Escherichia coli.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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