Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1276
pubmed:dateCreated
1992-7-10
pubmed:abstractText
Heterotrimeric GTP-dependent regulatory proteins (G-proteins) mediate modulation by many cell surface receptors. Activation of the G-proteins promotes dissociation of their alpha and beta gamma subunits. The similarity of behaviour of beta gamma subunits derived from a variety of G-proteins has led to their use as affinity reagents for the analysis of the more unique alpha subunits. The evolution of these uses is presented. One of the more insightful results was the isolation of a new class of G-protein alpha subunits (the alpha q subfamily) which have been shown to regulate the activity of a phospholipase C (PLC) specific for phosphatidylinositols. The experimental evidence leading to this conclusion is discussed. The activation by alpha q increases the apparent Vmax of the beta isoform of phosphatidylinositol-specific phospholipase C (PLC beta) and can be modulated by beta gamma subunits.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0962-8436
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
336
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
35-41; discussion 41-2
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Hormone signalling via G-protein: regulation of phosphatidylinositol 4,5-bisphosphate hydrolysis by Gq.
pubmed:affiliation
Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas 75080.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't