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Target intelligence / Profile preview
T cell receptor beta diversity 2 (TRBD2)
- Target
- TRBD2
- Molecular classification
- Other, Gene segment
01
Overview
The T cell receptor beta diversity 2 (TRBD2, TCRBD2, ENSG00000292271) gene segment is one of the D (diversity) regions encoded within the T cell receptor beta (TRB) locus. The TRB locus consists of variable (V), diversity (D), joining (J), and constant (C) gene segments. During T cell development, the TRBD2 segment participates in V(D)J recombination—an enzymatic process which randomly binds one V, one D, and one J segment to generate a highly diverse population of antigen-recognizing beta chain receptors. This diversity is essential for the adaptive immune system’s ability to recognize a vast range of antigens. The functional receptor is a heterodimer of an alpha and a beta chain, assembled and expressed on the T cell surface. The diversity provided by TRBD2 and other similar segments contributes indirectly to immune surveillance, tumor recognition, response to pathogens, and risk of autoimmunity, but TRBD2 alone is not a therapeutic protein target, biomarker, or druggable entity.
- Other names
- TRBD2TCRBD2
02
Mechanism of action
null
03
Biological functions
Immune responseGeneration of T cell receptor diversityAntigen recognition (indirectly via contribution to TCR diversity)
04
Disease associations
Cancer (indirectly, as TCR diversity is relevant for anti-tumor immunity and immunotherapy)Infection (role in anti-viral and anti-bacterial responses via generating diverse TCRs)Autoimmune disease (implicated in aberrant TCRs recognizing self)
05
Biomarkers
T cell receptor diversity profiling is used as a biomarker in cancer immunotherapy, infection, and immune monitoring, but not of TRBD2 alone
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