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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
41
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pubmed:dateCreated |
1993-11-26
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pubmed:abstractText |
The omega protein is a peptide found in near-stoichiometric levels in highly purified Escherichia coli RNA polymerase. In order to determine the binding site of omega to RNA polymerase, we cross-linked omega to RNA polymerase with the hetero-bifunctional cross-linker N-hydroxysuccinimidyl 4-azidobenzoate and analyzed for cross-linked partners using antibodies raised against each of the subunits. Our analysis indicates that omega cross-links predominantly with the beta' subunit, while a very low level of cross-linking was detected to the alpha subunit. We did not detect cross-linking to either the sigma 70 or the beta subunits. This report demonstrates the utility of combining cross-linking and immunological techniques to determine interactions between RNA polymerase subunits.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Azides,
http://linkedlifedata.com/resource/pubmed/chemical/Cross-Linking Reagents,
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Directed RNA Polymerases,
http://linkedlifedata.com/resource/pubmed/chemical/Macromolecular Substances,
http://linkedlifedata.com/resource/pubmed/chemical/hydroxysuccinimidyl-4-azidobenzoate
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0006-2960
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
19
|
pubmed:volume |
32
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
11224-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8218187-Azides,
pubmed-meshheading:8218187-Binding Sites,
pubmed-meshheading:8218187-Blotting, Western,
pubmed-meshheading:8218187-Cross-Linking Reagents,
pubmed-meshheading:8218187-DNA-Directed RNA Polymerases,
pubmed-meshheading:8218187-Escherichia coli,
pubmed-meshheading:8218187-Hydrogen-Ion Concentration,
pubmed-meshheading:8218187-Macromolecular Substances,
pubmed-meshheading:8218187-Ultraviolet Rays
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pubmed:year |
1993
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pubmed:articleTitle |
Cross-linking of Escherichia coli RNA polymerase subunits: identification of beta' as the binding site of omega.
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pubmed:affiliation |
Laboratory of Molecular Genetics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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