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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1986-12-24
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pubmed:abstractText |
Chartreusin binds cooperatively to poly(dA-dT).poly(dA-dT) and poly(dG-dC).poly(dG-dC). Both the site-exclusion model and the specific site model yield cooperative binding constants of about 5 X 10(5) M-1 and 3 X 10(5) M-1 for the AT and GC polymers, respectively, and the same stoichiometry and intrinsic binding constant for both polymers of 5 nucleotides per binding site and 3.1 X 10(4) M-1. The Scatchard plot for calf thymus DNA is curved in the opposite sense from that of cooperative binding. These binding data did not fit the site-exclusion model with the cooperative binding parameter as a variable nor the specific site, negative-cooperative binding model. The site-exclusion model with a cooperative binding parameter of unity yielded a binding constant of about 4 X 10(4) M-1 and a stoichiometry of about 5 nucleotides per binding site. The same model for transfer and ribosomal RNA yielded binding constants of 5 X 10(3) M-1 and 7 X 10(3) M-1 and stoichiometries of about 13 and 6 nucleotides per binding site, respectively.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antibiotics, Antineoplastic,
http://linkedlifedata.com/resource/pubmed/chemical/Benzopyrans,
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/Glycosides,
http://linkedlifedata.com/resource/pubmed/chemical/Poly dA-dT,
http://linkedlifedata.com/resource/pubmed/chemical/Polydeoxyribonucleotides,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Ribosomal,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Transfer,
http://linkedlifedata.com/resource/pubmed/chemical/chartreusin,
http://linkedlifedata.com/resource/pubmed/chemical/poly(dC-dG)
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0021-8820
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
39
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1298-303
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:3781929-Antibiotics, Antineoplastic,
pubmed-meshheading:3781929-Benzopyrans,
pubmed-meshheading:3781929-DNA,
pubmed-meshheading:3781929-Glycosides,
pubmed-meshheading:3781929-Poly dA-dT,
pubmed-meshheading:3781929-Polydeoxyribonucleotides,
pubmed-meshheading:3781929-RNA, Ribosomal,
pubmed-meshheading:3781929-RNA, Transfer,
pubmed-meshheading:3781929-Spectrophotometry
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pubmed:year |
1986
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pubmed:articleTitle |
The binding of the antitumor antibiotic chartreusin to poly(dA-dT).poly(dA-dT), poly(dG-dC).poly(dG-dC), calf thymus DNA, transfer RNA, and ribosomal RNA.
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pubmed:publicationType |
Journal Article
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