Phospho-Src Family (Tyr416) refers to the Src family of protein tyrosine kinases when phosphorylated at the tyrosine residue 416. This post-translational modification is crucial for the activation of Src kinases, which include Src, Lyn, Fyn, Yes, Lck, Blk, and Hck. Phosphorylation at Tyr416, located within the activation loop of the kinase domain, upregulates enzyme activity, while phosphorylation at another regulatory site, Tyr527, downregulates it. In the context of cancer, Src activity is often dysregulated, contributing to tumorigenesis and cancer progression. Understanding the mechanisms of Src activation, such as phosphorylation at Tyr416, is important for developing targeted therapies against cancer.
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