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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
1997-1-7
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pubmed:abstractText |
The structure of the domain from simian virus 40 (SV40) large T-antigen that binds to the SV40 origin of DNA replication (T-ag-OBD131-260) has been determined by nuclear magnetic resonance spectroscopy. The overall fold, consisting of a central five-stranded antiparallel beta-sheet flanked by two alpha-helices on one side and one alpha-helix and one 3(10)-helix on the other, is a new one. Previous mutational analyses have identified two elements, termed A (approximately 152-155) and B2 (203-207), as essential for origin-specific recognition. These elements form two closely juxtaposed loops that define a continuous surface on the protein. The addition of a duplex oligonucleotide containing the origin recognition pentanucleotide GAGGC induces chemical shift changes and slows amide proton exchange in resonances from this region, indicating that this surface directly contacts the DNA.
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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 |
Dec
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pubmed:issn |
1072-8368
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1034-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8946857-Amino Acid Sequence,
pubmed-meshheading:8946857-Antigens, Polyomavirus Transforming,
pubmed-meshheading:8946857-DNA, Viral,
pubmed-meshheading:8946857-Magnetic Resonance Spectroscopy,
pubmed-meshheading:8946857-Molecular Sequence Data,
pubmed-meshheading:8946857-Protein Binding,
pubmed-meshheading:8946857-Protein Structure, Secondary,
pubmed-meshheading:8946857-Protein Structure, Tertiary,
pubmed-meshheading:8946857-Simian virus 40
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pubmed:year |
1996
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pubmed:articleTitle |
Solution structure of the origin DNA-binding domain of SV40 T-antigen.
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pubmed:affiliation |
Department of Biochemistry, Tufts University School of Medicine, Boston, Massachusetts 02111, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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