Source:http://linkedlifedata.com/resource/pubmed/id/10753924
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
15
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pubmed:dateCreated |
2000-5-5
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pubmed:abstractText |
Elongin is a transcription elongation factor that was first identified in mammalian systems and is composed of the three subunits, elongin A, B, and C. Sequence homologues of elongin A and elongin C, but not elongin B, were identified in the yeast genome. Neither yeast elongin A nor C sequence homologues was required for cell viability. The two gene products could be purified from yeast as a complex. A recombinant form of the complex, which could only be produced in bacteria if the gene products were co-expressed, was purified over several chromatographic steps. The complex did not stimulate transcription elongation by yeast RNA polymerase II. Using limited proteolysis, the N-terminal 144 residues of yeast elongin A were shown to be sufficient for interaction with yeast elongin C. The purified complex of yeast elongin C/elongin A(1-143) was analyzed using circular dichroism and nuclear magnetic spectroscopy. These studies revealed that yeast elongin A is unfolded but undergoes a dramatic modification of its structure in the presence of elongin C, and that elongin C forms a stable dimer in the absence of elongin A.
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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 |
Apr
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
14
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pubmed:volume |
275
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
11174-80
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10753924-Amino Acid Sequence,
pubmed-meshheading:10753924-Circular Dichroism,
pubmed-meshheading:10753924-Dimerization,
pubmed-meshheading:10753924-Fungal Proteins,
pubmed-meshheading:10753924-Magnetic Resonance Spectroscopy,
pubmed-meshheading:10753924-Molecular Sequence Data,
pubmed-meshheading:10753924-Protein Structure, Secondary,
pubmed-meshheading:10753924-Saccharomyces cerevisiae,
pubmed-meshheading:10753924-Transcription, Genetic,
pubmed-meshheading:10753924-Transcription Factors
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pubmed:year |
2000
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pubmed:articleTitle |
Elongin from Saccharomyces cerevisiae.
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pubmed:affiliation |
Department of Medical Genetics and Microbiology, University of Toronto, Toronto, Ontario M5S 1A8.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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