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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2 Pt 1
|
pubmed:dateCreated |
1984-2-14
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pubmed:abstractText |
The division cycle of yeast a cells is inhibited by alpha-factor. Haploid a cells were found to bind 35S-labeled alpha-factor, whereas haploid alpha cells and diploid a/alpha cells showed little binding. The association of alpha-factor with a cells was reversible upon dilution. Unlabeled alpha-factor competed for binding of 35S-alpha-factor; the concentration dependence for competition indicated 9 X 10(5) binding sites per cell with a dissociation constant (KD) of 3 X 10(-7) M. The rates of association (kon = 3 X 10(3) M-1 sec-1) and dissociation (koff = 9 X 10(-4) sec-1) were consistent with the equilibrium constant. The alpha-factor binding activity associated with five temperature-sensitive ste2 mutants was thermolabile, suggesting that the STE2 gene encodes the receptor for alpha-factor. In contrast, the binding activity of other temperature-sensitive mutants (ste4, ste5, ste7, ste11, and ste12) showed no thermolability.
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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 |
0092-8674
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
35
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
521-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6360378-Binding Sites,
pubmed-meshheading:6360378-Genotype,
pubmed-meshheading:6360378-Haploidy,
pubmed-meshheading:6360378-Kinetics,
pubmed-meshheading:6360378-Mutation,
pubmed-meshheading:6360378-Peptides,
pubmed-meshheading:6360378-Saccharomyces cerevisiae,
pubmed-meshheading:6360378-Species Specificity,
pubmed-meshheading:6360378-Temperature
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pubmed:year |
1983
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pubmed:articleTitle |
Binding of alpha-factor pheromone to yeast a cells: chemical and genetic evidence for an alpha-factor receptor.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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