Tyrosine phosphorylation of a 22-kDa protein is correlated with transformation by Rous sarcoma virus.

作者: J.R. Glenney

DOI: 10.1016/S0021-9258(19)47038-5

关键词: Tyrosine phosphorylationProtein phosphorylationMolecular biologySH2 domainReceptor tyrosine kinaseTyrosine kinaseProtein tyrosine phosphataseBiologyPhosphorylationProto-oncogene tyrosine-protein kinase Src

摘要: Recent studies from this laboratory have identified novel cytoskeletal proteins that are phosphorylated on tyrosine in vivo Rous sarcoma virus-transformed chick fibroblasts (Glenney, J. R., Jr., and Zokas, L. (1989) Cell Biol. 108, 2401-2408). In the present report, phosphorylation of these was examined cells expressing nonmyristylated mutants src not transformed. A good correlation found between transformation a 22-kDa protein. Tyrosine protein reduced more than 95% src. Size fractionation revealed phosphoprotein transformed is Mr 150,000 complex. Monoclonal antibodies were used to screen various chicken tissues where at high levels muscle lung with low epithelial brain. The becomes an excellent candidate for mediator by kinase class oncogenes.

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