T cell receptor alpha variable 39 (TRAV39)

T cell receptor alpha variable 39 (TRAV39) encodes the V (variable) region of the alpha chain of the T cell receptor (TCR), a protein complex expressed on the surface of T lymphocytes that is essential for antigen recognition and initiating T cell-mediated adaptive immune responses[1][7]. TRAV39 is one of many variable (V) gene segments that participate in somatic recombination during T cell development, contributing to the diversity of the T cell receptor repertoire[1][2][4]. The alpha-beta TCR recognises peptide-MHC complexes presented by antigen-presenting cells, triggering intracellular signaling and T-cell responses[1][3][7]. The gene segment itself does not act as a direct therapeutic target; rather, it forms part of the TCR complex whose broad function is critical in immunity[1][3][7]. TRAV39 is a variable segment; it is not a full receptor on its own nor an independent drug target. No drugs are currently known to interact with this specific gene segment, and it is not used as a clinical biomarker or a therapeutic target. There are no unique safety concerns tied to TRAV39, as its role is as a genomic element involved in TCR gene rearrangement.

Other names

TCRAV27S1TCRAV39S1TRAV39T cell receptor alpha variable 39