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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 Haplotypes T Pr Positions in the locus IMGT/LIGM-DB reference sequences IMGT/LIGM-DB sequences from the literature
Strain Clone names Exons Accession numbers Positions in the sequence Secondary accession numbers Strain Clone names Accession numbers Positions in the sequence
IGHA IGHA*01 F UTS522 CH1 AB013765 [1] (2)
H+CH2 (1) AB013765 [1] (2)
CH3(including CHS)
IGHA*02 F UTS496 CH1 AB013771 [1] (2)
H+CH2 (1) AB013771 [1] (2)
CH3 (including CHS)
IGHG1 IGHG1*01 F CH1 JQ868732 [2]
H JQ868732 [2]
CH2 JQ868732 [2]
CH3(including CHS) JQ868732 [2]
IGHG2 IGHG2*01 F CH1 JQ868733 [2]
H JQ868733 [2]
CH2 JQ868733 [2]
CH3(including CHS) JQ868733 [2]
IGHG3 IGHG3*01 F CH1 JQ868734 [2]
H JQ868734 [2]
CH2 JQ868734 [2]
CH3(including CHS) JQ868734 [2]
IGHG4 IGHG4*01 F CH1 JQ868735 [2]
H JQ868735 [2]
CH2 JQ868735 [2]
CH3(including CHS) JQ868735 [2]
IMGT notes:
  1. (1) In the IGHA gene, the hinge (H) and CH2 are joined in a single exon.
  2. (2) Partial C-GENE: CH1 is partial in 5' and CH2 is partial in 3'.
IMGT references:
  1. [1] Sumiyama K. et al., Mol. Biol. Evol., 19, 1093-1099 (2002). PMID:12082128
  2. [2] Attanasio R., Unpublished (2012).
Last updated:
Saida Saljoqi, Nathalie Bosc