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TR major loci: Human

There are 4 major loci for the T cell receptor (TR) genes and 1 TR chromosomal orphon set [1].

IMGT major loci and links with HGNC, NCBI Gene and OMIM

IMGT locus name IMGT locus definition Chromosomal localization HGNC NCBI Gene OMIM
TRA locus T cell receptor alpha locus 14q11.2 TRA 6955 186880
TRB locus T cell receptor beta locus 7q34 TRB 6957 186930
TRG locus T cell receptor gamma locus 7p14 TRG 6965 186970
TRD locus T cell receptor delta locus 14q11.2 TRD 6964 186810

Portail to gene content in Gene tables

Genes of the human TR loci belong to fourteen groups

Number of genes per locus

IMGT Posters

Questions and answers (IMGT Education)

IMGT Reference:
[1] Lefranc, M.-P. and Lefranc, G., The T cell receptor FactsBook, Academic Press, 398 pages (2001) ISBN:0124413528.
See also (IMGT Index):
Last updated:
Friday, 22-Sep-2023 18:21:24 CEST
Véronique Giudicelli and Marie-Paule Lefranc
Elodie Foulquier, Chantal Ginestoux