Conformational basis for SH2-Tyr(P)527 binding in Src inactivation.

Abstract excerpt

Src protein-tyrosine kinase contains a myristoylation motif, a unique region, an Src homology (SH) 3 domain, an SH2 domain, a catalytic domain, and a C-terminal tail. The C-terminal tail contains a Tyr residue, Tyr527. Phosphorylation of Tyr527 triggers Src inactivation, caused by Tyr(P)527 binding to the SH2 domain. In this study, we demonstrated that a conformational contribution, not affinity, is the...

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