Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1980-5-14
pubmed:abstractText
Protein phosphorylation is a ubiquitous form of posttranslational protein modification in mammalian cells which often serves to regulate protein function. Insulin alters the activity of a number of enzymes known to be regulated via phosphorylation. With the premise that altered protein phosphorylation might be an obligatory intermediate step in insulin action, we have examined the effects of insulin on the phosphorylation of the major phosphopeptides in adipocytes and hepatocytes. Insulin affects overall protein phosphorylation in two ways: 1) Insulin selectively stimulates the phosphorylation of a major peptide in adipose tissue (MW 123,000) and liver (MW 46,000) through a mechanism independent of cAMP and the cAMP-dependent protein kinase. Net dephosphorylation is not observed with insulin as the sole hormone. 2) Insulin antagonizes cAMP-directed protein phosphorylation. The mechanism of insulin-stimulated phosphorylation and the possible role of this phenomenon in overall insulin action is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0361-7742
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
621-8
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Insulin and the phosphorylation of intracellular proteins.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S.