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  • Title: A small peptide derived from the aminoterminus of c-Raf-1 inhibits c-Raf-1/Ras binding.
    Author: Niehof M, Radziwill G, Klauser S, Moelling K.
    Journal: Biochem Biophys Res Commun; 1995 Jan 05; 206(1):46-50. PubMed ID: 7818549.
    Abstract:
    Various domains of the aminoterminal part of c-Raf-1 expressed as glutathione-S-transferase fusion proteins were analyzed for Ras binding. The binding site was localized at the aminoterminus outside of the cysteine-rich region. A single aminoacid exchange at aminoacid residue 89 (Arg89 to Leu) of c-Raf-1 inhibits binding. A small synthetic peptide corresponding to c-Raf-1 aminoacids 77 to 101 comprising Arg89 in a central position competes for Ras binding and thereby characterizes the relevant binding domain of Ras on c-Raf-1.
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