a T cell surface glycoprotein that is a component of the T cell antigen receptor. The recruitment of Nck by CD3 epsilon reveals a ligand-induced conformational change essential for T cell receptor signaling and synapse formation. Contains 1 immunoglobulin-like domain and 1 ITAM domain. Note: This description may include information from UniProtKB.
Protein type: Receptor, misc.; Membrane protein, integral
Cellular Component: T cell receptor complex; integral to plasma membrane; plasma membrane; immunological synapse; alpha-beta T cell receptor complex; external side of plasma membrane
Molecular Function: protein binding; transmembrane receptor activity; receptor signaling complex scaffold activity; protein heterodimerization activity; receptor signaling protein activity; T cell receptor binding; SH3 domain binding; protein kinase binding
Biological Process: regulation of immune response; T cell activation; positive regulation of interleukin-2 biosynthetic process; signal complex assembly; positive regulation of calcium-mediated signaling; T cell receptor signaling pathway; negative thymic T cell selection; positive regulation of interleukin-4 production; regulation of apoptosis; G-protein coupled receptor protein signaling pathway; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of interferon-gamma production; cell surface receptor linked signal transduction; negative regulation of smoothened signaling pathway; T cell costimulation; positive regulation of alpha-beta T cell proliferation; positive regulation of T cell proliferation; protein complex assembly; positive regulation of T cell anergy; response to nutrient; transmembrane receptor protein tyrosine kinase signaling pathway
SS: 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.