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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 Positions in the locus IMGT/LIGM-DB reference sequences IMGT/LIGM-DB sequences from the literature
Clone names Accession numbers Positions in the sequence (D-GENE-UNIT) Secondary accession numbers Clone names Accession numbers Positions in the sequence D-GENE-UNIT)
IGHD1 IGHD1 IGHD1*01 F DHA AJ554303 [1]
IGHD1*02 F 851A09 AB513624 [2] 108581-108673 747A01 AB513625 [2] 20077-20169
IGHD2 IGHD2 IGHD2*01 F DHB AJ554304 [1] 851A09 AB513624 [2] 109191-109274
747A01 AB513625 [2] 20687-20770
IGHD3 IGHD3 IGHD3*01 F 851A09 AB513624 [1] 113909-114001 747A01 AB513625 [2] 25405-25497
IGHD4 IGHD4 IGHD4*01 F 747A01 AB513625 [2] 42785-42851
IMGT references:
  1. [1] Sun J. and Butler, J.E., Immunology, 88, 331-339 (1996). PMID: 8774347
  2. [2] Eguchi-Ogawa T et al., J. Immunol, 184(7), 3734-3742 (2010). PMID: 20207992
See also (IMGT Scientific chart):