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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 subgroup IMGT gene name IMGT allele name Fct Chromosomal
localization
R T Pr IMGT/LIGM-DB locus reference sequences IMGT/LIGM-DB sequences from the literature
Breed Clone names Accession numbers Positions in the sequence
(D-GENE-UNIT)
Secondary accession numbers Breed Clone names Accession numbers Positions in the sequence
(D-GENE-UNIT)
IGHD1 IGHD1 IGHD1*01 ORF (1) - Texel NW_014639781 [1] 13751..13837
IGHD2 IGHD2 IGHD2*01 F - Texel NW_014639781 [1] 16217..16312
IGHD3 IGHD3 IGHD3*01 F - Texel NW_014639781 [1] 16638..16735
IGHD4 IGHD4 IGHD4*01 ORF (2) - Texel NW_014639781 [1] 17142..17225
IMGT notes:
  1. (1) Noncanonical 5'D-HEPTAMER: cgccgtg instead of cacagtg. Noncanonical 5'D-NONAMER: ggtcccagc instead of ggtttctga.
  2. (2) Noncanonical 5'D-HEPTAMER: tatggtg instead of cacagtg.
IMGT references:
  1. [1] Dufour V. et al., J. Immunol., 156, 2163-2170 (1996). PMID: 8690905
  2. [2] Ladeveze V. and Nau F., Unpublished.
See also (IMGT Scientific chart):