SRK antibody, STCD antibody, STD antibody, TZK antibody, ZAP-70 antibody, 70kDa antibody, AI327364 antibody, Srk antibody, mrtle antibody, mur antibody, zap70 antibody, MGC80670 antibody, MGC88962 antibody, ZAP70 antibody, zgc:110383 antibody, zeta chain of T-cell receptor associated protein kinase 70 antibody, putative tyrosine-protein kinase zap-70 antibody, zeta-chain (TCR) associated protein kinase antibody, zeta chain of T cell receptor associated protein kinase 70 antibody, zeta-chain (TCR) associated protein kinase 70kDa antibody, zeta chain of T cell receptor associated protein kinase 70kDa L homeolog antibody, zeta chain of T cell receptor associated protein kinase 70kDa antibody, tyrosine-protein kinase ZAP-70 antibody, ZAP70 antibody, Smp_149470 antibody, Zap70 antibody, zap70.L antibody, zap70 antibody, LOC707555 antibody, LOC100342021 antibody, LOC100390922 antibody, LOC100542877 antibody
Background
ZAP70(zeta-chain associated protein kinase), a 70 kDa member of the SYK tyrosine kinase family, plays a central role in lymphocyte activation and development, and is implicated in several immune disorders. Zap70 controls TCR(T-cell antigen receptor)-linked signal transduction pathways. Its key role in thymocytes development and mature T lymphocytes activation has been illustrated by the characterization of several human immunodeficiencies presenting with mutations in the zap-70 gene. ZAP-70 is also expressed in several types of B-cell neoplasm and is easily detected by immunohistochemistry, providing a useful prognostic marker in patients with chronic lymphocytic leukaemia.