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A synthetic peptide containing the autophosphorylation site of the transforming protein of Harvey sarcoma virus is phosphorylated by the EGF-stimulated tyrosine kinase.

作者信息

Baldwin G S, Stanley I J, Nice E C

出版信息

FEBS Lett. 1983 Mar 21;153(2):257-61. doi: 10.1016/0014-5793(83)80619-x.

Abstract

The transforming proteins (p21) of Harvey and Kirsten sarcoma viruses threonine kinase activity, which phosphorylates threonine 59 of the p21 proteins themselves. A tridecapeptide: Arg-Arg-Leu56-Asp-Thr-Thr59-Gly-Gln-Glu-Tyr-Ser-Ala66 containing residues 56-66 of p21 is phosphorylated solely on tyrosine by the epidermal growth factor (EGF)-stimulated tyrosine kinase of A431 cell membranes. Km-Values of 240 and 80 microM and Vmax values of 1.7 and 0.1 nmol.min-1.mg-1 were obtained in the presence and absence of EGF, respectively.

摘要

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Synthetic peptide substrates for the membrane tyrosine protein kinase stimulated by epidermal growth factor.
Eur J Biochem. 1984 Apr 16;140(2):363-7. doi: 10.1111/j.1432-1033.1984.tb08109.x.

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