a tyrosine kinase of the Syk family. Associates with the T-cell antigen receptor zeta-chain after TCR stimulation. Phosphorylated by Src-family kinases following antigen receptor activation. Plays a role in lymphocyte activation. Note: This description may include information from UniProtKB.
Protein type: Protein kinase, TK; Kinase, protein; EC 220.127.116.11; Protein kinase, tyrosine (non-receptor); TK group; Syk family
Cellular Component: cytoplasm; cytosol; extrinsic to internal side of plasma membrane; immunological synapse; intercellular junction; lipid raft; plasma membrane; T cell receptor complex
Molecular Function: ATP binding; non-membrane spanning protein tyrosine kinase activity; phosphotyrosine binding; protein binding; protein-tyrosine kinase activity; receptor binding
Biological Process: adaptive immune response; B cell activation; B cell receptor signaling pathway; beta selection; immune response; innate immune response; macrophage activation during immune response; negative thymic T cell selection; neutrophil activation during immune response; peptidyl-tyrosine phosphorylation; positive regulation of alpha-beta T cell differentiation; positive regulation of alpha-beta T cell proliferation; positive regulation of B cell differentiation; positive regulation of calcium-mediated signaling; positive regulation of cell adhesion mediated by integrin; positive regulation of mast cell degranulation; positive regulation of T cell differentiation; positive thymic T cell selection; protein amino acid phosphorylation; T cell activation; T cell differentiation; T cell receptor signaling pathway; transmembrane receptor protein tyrosine kinase signaling pathway
LTP: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.