Non-receptor tyrosine-protein kinase that plays an important role in the regulation of cell growth, differentiation, migration and immune response. Phosphorylates tyrosine residues located in the C-terminal tails of Src-family kinases (SFKs). Upon tail phosphorylation, Src-family members engage in intramolecular interactions between the phosphotyrosine tail and the SH2 domain that result in an inactive conformation. To inhibit SFKs, CSK is recruited to the plasma membrane via binding to transmembrane proteins or adapter proteins located near the plasma membrane (By similarity).

Belongs to the protein kinase superfamily. Tyr protein kinase family. CSK subfamily.

450 amino acids

MSGMQAVWPSGTECIAKYNFHGTAEQDLPFSKGDVLTIVAVTKDPNWYKAKNKVGREGIIPANYVQKREGVKAGIKLSLMPWFHGKITREQAERLLYPPETGLFLVRESTNYPGDYTLCVSCEGKVEHYRIIYSSSKLSIDEEVYFENLMQLVEHYTTDADGLCSRLIKPKVMEGTVAAQDEFSRSGWALNMKDLKLLQIIGKGEFGDVMLGDYRGNKVAVKCIKNDATAQAFLAEASVMTQLRHSNLVQLLGVIVEEKSGLYIVTEYMAKGSLVDYLRSRGRSVLGGDCLLKFSLDVCEAMEYLEANNFVHRDLAARNVLVSEDNIAKVSDFGLTKEASSTQDTGKLPVKWTAPEALREKKFSTKSDVWSFGILLWEIYSFGRVPYPRIPLKDVVPRVEKGYKMDPPDGCPAIVYEVMKKCWTLDPGHRPSFHQLREQLVHIKEKELYL

50.8 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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