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Target intelligence / Profile preview
T cell receptor beta joining 1-5 (TRBJ1-5)
- Target
- TRBJ1-5
- Molecular classification
- Other (gene segment), Immunoglobulin superfamily (as part of complete TCR complex)
01
Overview
TRBJ1-5 (T cell receptor beta joining 1-5) is a joining gene segment in the T cell receptor beta (TCRβ) locus, participating in the V(D)J recombination that produces diverse antigen receptors in T cells. The TCRβ chain is generated by recombination of a variable (TRBV), diversity (TRBD), and joining (TRBJ) segment, with TRBJ1-5 as one of the available joining segments. This process underlies the adaptive immune system's ability to recognize a vast array of antigens. TRBJ1-5 itself is not a standalone protein or drug target, but is critical to immune repertoire formation and can serve as a marker in studies of T cell diversity and clonality.
- Other names
- TRBJ1-5TRBJ15TCRBJ1S5
02
Biological functions
Generation of immune diversityAntigen recognition (as part of T cell receptor complex—only in context of the rearranged gene in mature T cells)
03
Disease associations
Cancer (by involvement in T cell responses and immunotherapies—indirect)Infection (contributes to antiviral responses—indirectly)Other (marker in T cell receptor repertoire analysis—indirect role)
04
Biomarkers
Used in TCR repertoire sequencing for immune monitoring (i.e., clonality analysis in cancer or infection)
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