Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1984-5-21
pubmed:abstractText
The activation of protein kinase C in human platelets by phorbol-12, 13- dibutyrate (PDBu) results in the phosphorylation of a 40,000 dalton protein. This phosphorylation is time- and concentration-dependent. Maximal phosphorylation is rapid and is not affected by indomethacin or prostacyclin. PDBu does not promote activation of the phosphodiesteratic cleavage (phospholipase C) of the inositol phospholipids and the subsequent formation of 1,2-diacylglycerol or its phosphorylated product, phosphatidic acid. If platelets exposed to PDBu are subsequently stimulated with thrombin, this stimulus does not initiate further 40,000 dalton protein phosphorylation but will promote the formation of phosphatidic acid and also the phosphorylation of a 20,000 dalton protein (myosin light chain). However, prostacyclin will prevent the subsequent stimulation of phosphatidic acid synthesis by thrombin in a concentration-dependent manner. The fact that prostacyclin can affect the response to thrombin, even in the presence of phorbol ester, supports the idea that the enzymes related to the formation of phosphatidic acid or inhibition of its synthesis are not related to the phosphorylated 40K protein.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
120
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-44
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Prostacyclin inhibition of phosphatidic acid synthesis in human platelets is not mediated by protein kinase C.
pubmed:publicationType
Journal Article, In Vitro