participates in protein phosphorylation transmembrane receptor protein tyrosine kinase signaling pathway regulation of phosphatidylinositol 3-kinase signaling hemopoiesis platelet activation T cell costimulation peptidyl-tyrosine autophosphorylation regulation of cell population proliferation innate immune response phosphatidylinositol phosphate biosynthetic process phosphatidylinositol-mediated signaling leukocyte migration release of sequestered calcium ion into cytosol tyrosine-protein kinase Lck Homo sapiens protein tyrosine-protein kinase Lck (human) protein YT16 (human) LSK (human) T cell-specific protein-tyrosine kinase (human) proto-oncogene Lck (human) hLCK PR:P06239 LCK leukocyte C-terminal Src kinase (human) protein Category=organism-gene. Reactome:R-HSA-167609 DTO:03100266 lymphocyte cell-specific protein-tyrosine kinase (human) A tyrosine-protein kinase Lck that is encoded in the genome of human. UniProtKB:P06239 p56-LCK (human)