| pubmed-article:331252 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:331252 | lifeskim:mentions | umls-concept:C0014834 | lld:lifeskim |
| pubmed-article:331252 | lifeskim:mentions | umls-concept:C0229304 | lld:lifeskim |
| pubmed-article:331252 | lifeskim:mentions | umls-concept:C0012854 | lld:lifeskim |
| pubmed-article:331252 | lifeskim:mentions | umls-concept:C0035681 | lld:lifeskim |
| pubmed-article:331252 | lifeskim:mentions | umls-concept:C1704675 | lld:lifeskim |
| pubmed-article:331252 | lifeskim:mentions | umls-concept:C2603343 | lld:lifeskim |
| pubmed-article:331252 | pubmed:issue | 5 | lld:pubmed |
| pubmed-article:331252 | pubmed:dateCreated | 1977-10-28 | lld:pubmed |
| pubmed-article:331252 | pubmed:abstractText | In a medium containing 10mM Tris, pH 8, 10 mM MG++, 50 mM K+ and 10 mM NH4, the binding of an E. coli RNA polymerase holoenzyme unwinds the DNA helix by about 240 degrees at 37 degrees C. In this medium the total unwinding of the DNA increases linearly with the molar ratio of polymerase to DNA. The number of binding sites at which unwinding can occur is very large. If the K+ concentration is increased at 200 mM, the enzyme binds to only a limited number of sites, and the bound and free enzyme molecules do not exchange at an appreciable rate. The unwinding angle of the DNA per bound enzyme in this high salt medium is measured to be 140 degrees at 37 degrees C. The total unwinding angle for a fixed number of bound polymerase molecules per DNA is strongly temperature dependent, and decreases with decreasing temperature. | lld:pubmed |
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| pubmed-article:331252 | pubmed:language | eng | lld:pubmed |
| pubmed-article:331252 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:331252 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:331252 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:331252 | pubmed:issn | 0305-1048 | lld:pubmed |
| pubmed-article:331252 | pubmed:author | pubmed-author:WangJ CJC | lld:pubmed |
| pubmed-article:331252 | pubmed:author | pubmed-author:SaucierJ MJM | lld:pubmed |
| pubmed-article:331252 | pubmed:author | pubmed-author:JacobsenJ HJH | lld:pubmed |
| pubmed-article:331252 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:331252 | pubmed:volume | 4 | lld:pubmed |
| pubmed-article:331252 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:331252 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:331252 | pubmed:pagination | 1225-41 | lld:pubmed |
| pubmed-article:331252 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:331252 | pubmed:year | 1977 | lld:pubmed |
| pubmed-article:331252 | pubmed:articleTitle | Physiochemical studies on interactions between DNA and RNA polymerase. Unwinding of the DNA helix by Escherichia coli RNA polymerase. | lld:pubmed |
| pubmed-article:331252 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:331252 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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