Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1986-7-28
pubmed:abstractText
Hydrolysis of polyphosphoinositides by phospholipase C was examined in isolated membranes prepared from [32P]labelled platelets. In the presence of GTP gamma S, thrombin increased the release of inositol triphosphate and inositol biphosphate approximately 500%. GTP gamma S alone stimulated release 2 fold. Maximal activation of thrombin-induced phosphoinositide hydrolysis was observed at 10 uM GTP. Although addition of calcium had no effect, 2 mM EGTA completely inhibited inositolphosphate release. Addition of high speed supernatant to [32P]labelled membranes stimulated the release of inositolphosphates. This hydrolysis was further enhanced by the addition of GTP. These data demonstrate that the breakdown of polyphosphoinositides in isolated platelet membranes is dependent on GTP and stimulated by platelet cytosol.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
137
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
801-5
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
GTP and cytosol stimulate phosphoinositide hydrolysis in isolated platelet membranes.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't