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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1990-6-4
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pubmed:abstractText |
The effect of phorbol 12,13-dibutyrate on the formation of phosphatidylinositol 3,4-bisphosphate in washed human platelets was studied. Platelets labelled with [32P]Pi were stimulated with phorbol 12,13-dibutyrate or thrombin in the presence or absence of staurosporine. Lipids were extracted, and deacylated, and the glycerophosphoinositol derivatives were analyzed by high performance liquid chromatography. Phorbol 12,13-dibutyrate increased formation of phosphatidylinositol 4-monophosphate and phosphatidylinositol 3,4-bisphosphate in a dose- and time-dependent manner. Thrombin also increased formation of phosphatidylinositol 3,4-bisphosphate. Staurosporine completely inhibited phorbol 12,13-dibutyrate or thrombin-stimulated production of phosphatidylinositol 3,4-bisphosphate. These data indicate that production of phosphatidylinositol 3,4-bisphosphate and phosphatidylinositol 4-monophosphate is mediated by protein kinase C. It is widely recognized that production of phosphatidylinositol 3,4-bisphosphate is caused by the tyrosine kinase-mediated activation of phosphatidylinositol 3-kinase. However, in platelets, production of phosphatidylinositol 3,4-bisphosphate might be related to stimulation of phosphatidylinositol 4-kinase, which is activated by protein kinase C.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Alkaloids,
http://linkedlifedata.com/resource/pubmed/chemical/Phorbol 12,13-Dibutyrate,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylinositol Phosphates,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylinositols,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase C,
http://linkedlifedata.com/resource/pubmed/chemical/Staurosporine,
http://linkedlifedata.com/resource/pubmed/chemical/Thrombin,
http://linkedlifedata.com/resource/pubmed/chemical/phosphatidylinositol 3,4-diphosphate
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
168
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
466-72
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2159293-Alkaloids,
pubmed-meshheading:2159293-Blood Platelets,
pubmed-meshheading:2159293-Chromatography, High Pressure Liquid,
pubmed-meshheading:2159293-Enzyme Activation,
pubmed-meshheading:2159293-Humans,
pubmed-meshheading:2159293-Phorbol 12,13-Dibutyrate,
pubmed-meshheading:2159293-Phosphatidylinositol Phosphates,
pubmed-meshheading:2159293-Phosphatidylinositols,
pubmed-meshheading:2159293-Protein Kinase C,
pubmed-meshheading:2159293-Staurosporine,
pubmed-meshheading:2159293-Thrombin
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pubmed:year |
1990
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pubmed:articleTitle |
Protein kinase C-mediated formation of phosphatidylinositol 3,4-bisphosphate in human platelets.
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pubmed:affiliation |
Division of Cell Biology, Burroughs Wellcome Co., Research Triangle Park, NC 27709.
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pubmed:publicationType |
Journal Article
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