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"+" or "-" indicates if the gene sequences have been found (+) or not been found (-) rearranged (R), 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 R T Pr Positions in the locus IMGT/LIGM-DB reference sequences IMGT/LIGM-DB sequences from the literature
Breed Clone names Accession numbers D-GENE-UNIT Secondary accession numbers Breed Clone names Accession numbers Positions in the sequence
TRDD1 TRDD1*01 [1] F chromosome 7 Texel OviAri_1_chr7 complement(283066..297287)
TRDD2 TRDD2*01 [1] F chromosome 7 + Texel OviAri_1_chr7 complement(270698..283065)
TRDD3 TRDD3*01 [1] F chromosome 7 Texel OviAri_1_chr7 complement(260721..270697)
TRDD4 TRDD4*01 [1] F chromosome 7 Texel OviAri_1_chr7 complement(248044..260720)
TRDD5 TRDD5*01 [1] F chromosome 7 Texel OviAri_1_chr7 complement(237830..248043)
TRDD6 TRDD6*01 [1] F chromosome 7 Texel OviAri_1_chr7 complement(230457..237829)
TRDD7 TRDD7*01 [1] F chromosome 7 Texel OviAri_1_chr7 complement(219499..230456)
IMGT references:
  1. [1] Piccinni B. et al., BMC Genomics, 16:709 (2015). PMID: 26383271
See also (IMGT Scientific chart):