Trat1, T cell Receptor-associated Transmembrane Adaptor 1, pp29/30

Human TRIM (T cell receptor–interacting molecule) (also trat1; T cell receptor-associated transmembrane adaptor 1, and pp29/30) is a 27-30kD, type III transmembrane protein, that is a member of the transmembrane adaptor protein (TRAP) family. It contains a short, 8 amino acid (aa) extracellular region, a 19 aa transmembrane region, and a 159 aa cytosolic tail. Its cytoplasmic tail contains several tyrosine motifs with the potential to bind to Src-homology 2 (SH2) domains of signaling proteins. TRIM is present in T cells and NK cells. Human TRIM shares 66% aa sequence identity with mouse TRIM.