Source:http://linkedlifedata.com/resource/pubmed/id/10562440
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2000-4-4
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pubmed:abstractText |
Arginine vasopressin (AVP)-induced tyrosine phosphorylation was studied in a rat smooth muscle cell line, A-10, by western blotting, using a monoclonal antibody against phosphotyrosine. AVP stimulated the phosphorylation of several cellular proteins of molecular mass 60-130 kDa in a time- and dose-dependent manner. Phosphorylation was mediated largely by V(1)receptor subtype since it was inhibited by selective V(1)antagonist and was only partially elicited by the V(2)agonist, desmopressin. Heterotrimeric G-proteins seemed to be involved in the phosphorylation mechanism because fluoraluminates, an activator of heterotrimeric G-proteins (and thus an uncoupler of the receptor-G-protein interaction) inhibited the AVP-induced phosphorylation. The protein kinase C (PKC) inhibitors: staurosporine, H7 and GF109203X are able to block the AVP-stimulated phosphorylation. The last of these has been shown to be one of the most selective inhibitors of PKC. These results indicate that PKC is upstream of the phosphorylation, a motion which is supported by the fact that the AVP-stimulated phosphorylation was downregulated by phorbol esters.
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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:issn |
1065-6995
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1999 Academic Press.
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pubmed:issnType |
Print
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pubmed:volume |
23
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
195-201
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:10562440-Animals,
pubmed-meshheading:10562440-Cell Line,
pubmed-meshheading:10562440-Enzyme Activation,
pubmed-meshheading:10562440-Muscle, Smooth, Vascular,
pubmed-meshheading:10562440-Phosphorylation,
pubmed-meshheading:10562440-Protein Kinase C,
pubmed-meshheading:10562440-Rats,
pubmed-meshheading:10562440-Signal Transduction,
pubmed-meshheading:10562440-Tyrosine,
pubmed-meshheading:10562440-Vasoconstrictor Agents,
pubmed-meshheading:10562440-Vasopressins
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pubmed:year |
1999
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pubmed:articleTitle |
Vasopressin stimulates tyrosine phosphorylation by activation of PKC in the rat smooth muscle cell line, A-10.
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pubmed:affiliation |
Department of Physiology and Department of Histology and Pathology, Faculty of Medicine, Universidad Austral of Chile, Valdivia, Chile.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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