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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1989-5-19
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pubmed:databankReference | |
pubmed:abstractText |
The yeast tropomyosin gene, designated TPM1, is present in a single copy per haploid genome and encodes a protein with a predicted molecular weight of 23.5 kd. The protein sequence is homologous to higher cell tropomyosins, including the characteristic hydrophobic-hydrophilic pseudoheptapeptide repeats. Indirect immunofluorescence microscopy reveals that tropomyosin is localized with actin cables in wild-type cells. Disruption of TPM1 is not lethal, but results in a reduced growth rate and disappearance of actin cables. Strains carrying the conditional actin mutation act1-2 also lack actin cables; overexpression of tropomyosin in these strains partially restores actin cables. These results strongly suggest that tropomyosin interacts with F actin in vivo and may play an important role in assembling or stabilizing actin cables in yeast.
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pubmed:grant | |
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 |
0092-8674
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
21
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pubmed:volume |
57
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
233-42
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2649250-Actins,
pubmed-meshheading:2649250-Base Sequence,
pubmed-meshheading:2649250-Cytoskeleton,
pubmed-meshheading:2649250-Gene Expression Regulation,
pubmed-meshheading:2649250-Genes,
pubmed-meshheading:2649250-Genes, Lethal,
pubmed-meshheading:2649250-Molecular Sequence Data,
pubmed-meshheading:2649250-Saccharomyces cerevisiae,
pubmed-meshheading:2649250-Tropomyosin
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pubmed:year |
1989
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pubmed:articleTitle |
Disruption of the single tropomyosin gene in yeast results in the disappearance of actin cables from the cytoskeleton.
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pubmed:affiliation |
Section on Biochemistry Molecular, Cornell University, Ithaca, New York 14853.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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