Source:http://linkedlifedata.com/resource/umls/id/C0065344
MSH: This enzyme is a lymphoid-specific src family tyrosine kinase that is critical for T-cell development and activation. Lck is associated with the cytoplasmic domains of CD4, CD8 and the beta-chain of the IL-2 receptor, and is thought to be involved in the earliest steps of TCR-mediated T-cell activation.,NCI: LCK is a lymphoid-specific SRC family tyrosine kinase critical for T-cell development and activation. LCK is quickly activated after mIg cross-linking on B-cells or after TCR cross-linking on T-cells and is associated with the cytoplasmic domains of CD4, CD8, and the IL-2R beta chain. LCK may be involved in the earliest steps of TCR-mediated T-cell activation. After antigen binding to the TCR, in concert with co-receptors (CD4, MHC II, CD28, B7, CD8, and MHC I) activation of at least three protein-tyrosine kinases occur, including p59(FYN), p56(LCK), and ZAP70. The pre-TCR co-localizes with LCK into glycolipid rafts, resulting in the phosphorylation of CD3-epsilon and ZAP70. STAT5 is phosphorylated u