Lck (8E5F) Antibody

Lck (Lymphocyte-specific protein tyrosine kinase) is a 509-amino acid protein (~56kDa), belongs to the Src non-receptor tyrosine kinases family. The Src family is composed of nine members in vertebrates, including Src, Yes, Fgr, Frk, Fyn, Lyn, Hck, Lck and Blk. Lck is expressed predominantly in T cells and is localized to the inner surface of the plasma membrane. Lck is activated after T cell stimulation and is required for T-cell proliferation and IL-2 production. Aberrant expression or activation of Lck kinase has been reported in both lymphoid and nonlymphoid malignancies. Inhibition of Lck has been a target to prevent lymphocyte activation and acute rejection.