Publication Date:
1985-09-27
Description:
When vole cells that had been transformed by Rous sarcoma virus were treated with the tumor-promoting phorbol ester 12-O-tetradecanoyl-13-acetate (TPA), specific phosphorylation of pp60v-src was increased. Partial V8 protease mapping indicated that the increased phosphorylation occurred exclusively on serine residues located in the amino terminus of the molecule. Treatment of cells with dimethyl sulfoxide or 4 alpha-phorbol-12,13-didecanoate did not elicit this response. Two-dimensional tryptic phosphopeptide mapping of pp60v-src immunoprecipitated from untreated and TPA-treated cells indicated that a specific tryptic amino-terminal peptide was hyperphosphorylated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Purchio, A F -- Shoyab, M -- Gentry, L E -- New York, N.Y. -- Science. 1985 Sep 27;229(4720):1393-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994221" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Arvicolinae
;
Carcinogens/*pharmacology
;
Cell Transformation, Neoplastic/metabolism
;
Cells, Cultured
;
Dimethyl Sulfoxide/pharmacology
;
Mice
;
Mice, Inbred BALB C
;
Oncogene Protein pp60(v-src)
;
Phorbol Esters/pharmacology
;
Phosphorylation
;
Protein Kinase C
;
Protein Kinases/metabolism
;
Receptor, Epidermal Growth Factor
;
Receptors, Cell Surface/metabolism
;
Sarcoma, Avian/*genetics
;
Tetradecanoylphorbol Acetate/pharmacology
;
Viral Proteins/*metabolism
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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