LYN: a tyrosine kinase of the Src family that plays a role in B cell antigen-receptor signaling.
Protein type: Oncoprotein; Kinase, protein; EC 2.7.10.2; Protein kinase, tyrosine (non-receptor); Protein kinase, TK; TK group; Src family
Chromosomal Location of Human Ortholog: 8q13
Cellular Component: Golgi apparatus; mitochondrial crista; extrinsic to internal side of plasma membrane; mast cell granule; perinuclear region of cytoplasm; cytoplasm; postsynaptic density; plasma membrane; mitochondrial intermembrane space; cytosol; nucleus; lipid raft
Molecular Function: integrin binding; protein binding; enzyme binding; ubiquitin protein ligase binding; protein-tyrosine kinase activity; platelet-derived growth factor receptor binding; non-membrane spanning protein tyrosine kinase activity; phosphoprotein binding; receptor signaling protein tyrosine kinase activity; glycosphingolipid binding; SH3 domain binding; ATP binding; receptor binding
Biological Process: regulation of mast cell degranulation; negative regulation of MAP kinase activity; central nervous system development; viral reproduction; response to toxin; positive regulation of B cell receptor signaling pathway; protein amino acid phosphorylation; response to organic cyclic substance; response to carbohydrate stimulus; regulation of B cell apoptosis; B cell receptor signaling pathway; erythrocyte differentiation; oligodendrocyte development; tolerance induction to self antigen; response to drug; platelet activation; negative regulation of immune response; response to sterol depletion; immune response-regulating cell surface receptor signaling pathway; response to amino acid stimulus; regulation of erythrocyte differentiation; histamine secretion by mast cell; T cell costimulation; leukocyte migration; cytokine secretion; regulation of mast cell activation; transmembrane receptor protein tyrosine kinase signaling pathway; axon guidance; regulation of cytokine secretion; peptidyl-tyrosine phosphorylation; protein amino acid autophosphorylation; response to hormone stimulus; negative regulation of B cell proliferation; signal transduction; response to insulin stimulus; regulation of cytokine production; negative regulation of cell proliferation; regulation of cell adhesion mediated by integrin; platelet degranulation; negative regulation of protein amino acid phosphorylation; B cell homeostasis; positive regulation of cell proliferation; ephrin receptor signaling pathway; lipopolysaccharide-mediated signaling pathway; Fc receptor mediated inhibitory signaling pathway; response to axon injury; Fc receptor mediated stimulatory signaling pathway; inflammatory response; regulation of B cell receptor signaling pathway; regulation of protein amino acid phosphorylation; negative regulation of myeloid leukocyte differentiation; negative regulation of toll-like receptor 2 signaling pathway; positive regulation of phosphoinositide 3-kinase activity; positive regulation of cell motility; regulation of release of sequestered calcium ion into cytosol; positive regulation of tyrosine phosphorylation of STAT protein; regulation of inflammatory response; negative regulation of toll-like receptor 4 signaling pathway; cellular response to extracellular stimulus; innate immune response; blood coagulation; response to DNA damage stimulus; positive regulation of cell migration
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