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"+" or "-" indicates if the gene sequences have been found (+) or not been found (-) transcribed (T) and/or translated into protein (Pr). Arbitrarily that information is shown on the first line of each gene when the data have been confirmed by several studies.

Functionality is shown between parentheses, (F) and (P), when the accession number refers to rearranged genomic DNA or cDNA and the corresponding germline gene has not yet been isolated.
Functionality is shown between brackets, [F] and [P], when the accession number refers to genomic DNA, but not known as being germline or rearranged.

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IMGT gene name IMGT allele name Fct Chromosomal localization T Pr Positions in the locus IMGT/LIGM-DB reference sequences IMGT/LIGM-DB sequences from the literature
Clone names Exons Accession numbers Positions in the sequence Secondary accession numbers Clone names Accession numbers Positions in the sequence
TRBC1 TRBC1*01 F 7q34 Cbeta1 EX1 M12887 [1] 213..599 Cbeta1 M14157 [2] 171..557
EX2 M12887 [1] 1041..1058 Cbeta1 M14157 [2] 999..1016
EX3 M12887 [1] 1211..1317 Cbeta1 M14157 [2] 1169..1275
EX4 M12887 [1] 1640..1657 Cbeta1 M14157 [2] 1598..1615
TRBC1*02 F 7q34 Cbeta1 EX1 L36092 [3] (1) 645749..646135 Cbeta1 U66061 [3] (1) 193426..193812
EX2 L36092 [3] (1) 646577..646594 Cbeta1 U66061 [3] (1) 194254..194271
EX3 L36092 [3] (1) 646747..646853 Cbeta1 U66061 [3] (1) 194424..194530
EX4 L36092 [3] (1) 647176..647193 Cbeta1 U66061 [3] (1) 194853..194870
TRBC1*03 F 7q34 Cbeta1 EX1 IMGT000021 560349..560735
EX2 IMGT000021 561177..561194
EX3 IMGT000021 561347..561453
EX4 IMGT000021 561776..561793
TRBC2 TRBC2*01 F 7q34 Cbeta2 EX1 M12888 [1] 154..540 Cbeta2 M12510 [2] 783..1169
EX2 M12888 [1] 1057..1074 Cbeta2 M12510 [2] 1686..1703
EX3 M12888 [1] 1218..1324 Cbeta2 M12510 [2] 1847..1953
EX4 M12888 [1] 1616..1639 Cbeta2 M12510 [2] 2245..2268
TRBC2*02 F 7q34 Cbeta2 EX1 L36092 [3] (1) 655095..655481 Cbeta2 U66061 [3] (1) 202772..203158
EX2 L36092 [3] (1) 655998..656015 Cbeta2 U66061 [3] (1) 203675..203692
EX3 L36092 [3] (1) 656159..656265 Cbeta2 U66061 [3] (1) 203836..203942
EX4 L36092 [3] (1) 656557..656580 Cbeta2 U66061 [3] (1) 204234..204457
TRBC2*03 F 7q34 Cbeta2 EX1 IMGT000021 569698..570082
EX2 IMGT000021 570599..570616
EX3 IMGT000021 570760..570866
EX4 IMGT000021 571158..571181
IMGT notes:
  1. (1) The original L36092 sequence (684973 bp) has been split in EMBL into three sequences of 267156 bp (U66059), 215422 bp (U66060) and 232650 bp (U66061), L36092 has become secondary accession number of U66059, U66060 and U66061. In IMGT, the original sequence L36092 which is fully annotated has also been kept as primary accession number, in addition to U66059, U66060 and U66061.
IMGT references:
  1. [1] Tunnacliffe, A. et al., Proc. Natl. Acad. Sci. USA., 82, 5068-5072 (1985). PMID: 3860845
  2. [2] Toyonaga, B. et al., Proc. Natl. Acad. Sci. USA., 82, 8624-8628 (1985). PMID: 3866244
  3. [3] Rowen, L. et al., Science, 272, 1755-1762 (1996). PMID: 8650574
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