T cell receptor alpha joining segment 46 (TRAJ46)

The **TRAJ46** segment is one of many joining (J) regions encoded in the human T cell receptor alpha (TRA) locus. During T cell development, V (variable) and J (joining) gene segments such as TRAJ46 are randomly recombined to generate the diverse repertoire of T cell receptors (TCRs) on the surface of T lymphocytes. These receptors recognize peptide antigens presented by major histocompatibility complex (MHC) molecules on antigen-presenting cells, a fundamental process in adaptive immunity[1][4][5][7][8]. TRAJ46 is therefore essential as a germline element but is not in itself a receptor, protein, or direct drug target. TRAJ46 is a **DNA segment** (a joining region) involved in assembling the TCRα chain and is not a therapeutic target, drug, or biomarker. The **therapeutically relevant target** is the assembled **T cell receptor complex** itself (see "T cell receptor" or "TRAC" for the main protein), not single genetic segments like TRAJ46. If your interest is in the alpha chain of the TCR, the appropriate canonical name would be "T cell receptor alpha chain" or "T cell receptor" (abbreviated TCR or TRAC)[1][4][7].

Other names

TRAJ46T cell receptor alpha joining 46TCRJ46J46 (alpha chain)TRJ46