Evidence that Ha-Ras mediates two distinguishable intracellular signals activated by v-Src

Autor: K. Alexandropoulos, S. A. Qureshi, U. R. Rapp, David A. Foster, J. T. Bruder, Myunghi Rim, C K Joseph
Rok vydání: 1992
Předmět:
Zdroj: Journal of Biological Chemistry. 267:17635-17639
ISSN: 0021-9258
Popis: v-Src activates promoters under the control of 12-O-tetradecanoylphorbol-13-acetate (TPA) response elements (TREs) and serum response elements (SREs) via two distinguishable intracellular signaling mechanisms. The induction of TRE- and SRE-mediated gene expression by v-Src could be distinguished by a differential sensitivity to depleting cells of protein kinase C (PKC) and to a dominant negative Raf-1 mutant. Thus, PKC depletion and the dominant negative Raf-1 mutant were able to distinguish two intracellular signaling mechanisms activated by v-Src. Both of these v-Src-induced intracellular signals were sensitive to a dominant negative mutant of Ha-Ras. These data suggest that Ha-Ras functions to coordinately regulate multiple intracellular signaling mechanisms activated by v-Src.
Databáze: OpenAIRE