Citing IMGT dynamic tools: Sanou G., Zeitoun G. et al. IMGT® at scale: FAIR, Dynamic and Automated Tools for Immune Locus Analysis, Nucleic Acids Research. 2025;,gkaf1024. doi: 10.1093/nar/gkaf1024 (Free Article) PMID: 41091930.
Program version: v. 

Add information about removed genes/alleles.
May 15th, 2025.

Add the possibility to obtain a gene table per strain (for mouse now and for other species later) and allotypes/isotypes for human.
September 25th, 2024.

Bibliographical references in alphabetic order, small design changes and addition of "NL" for non-localized gene.
June 14th, 2024.

Addition of 'Score for IMGT allele confirmation' as well as NCBI TPA accession numbers.
September 20th, 2023.

Implementation of the dynamic gene table.

Gene table legend:

"+" 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 in 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.

IMGT allele confirmation: A scoring system is employed to indicate the number of IMGT/LIGM-DB reference sequences and other sequences from the literature in which an IG or TR gene allele has been identified and annotated.

Removed genes/alleles
If a gene/allele existence or name has to be changed, the old name or gene/allele would be deleted and its name won't be reused. They are kept in the gene table for historical reasons.
A single star ()
indicates that an IG or TR gene allele is annotated in the reference sequence only.
Two stars ()
indicate that an IG or TR gene allele is annotated in its reference sequence and in one sequence from the literature.
Three stars ()
indicate that an IG or TR gene allele is annotated in its reference sequence and in at least two sequences from the literature.
In the Excel file, the stars are represented by the plus symbol (+).

Click on:
  • IMGT gene name to get the corresponding IMGT/GENE-DB entry (link).
  • IMGT allele name to see the corresponding Alignments of alleles (link).
  • Accession number to get the corresponding IMGT/LIGM-DB entry (link).
  • MAP: mapped sequences. Click to access GENE-DB «LOCALIZATION IN GENOME ASSEMBLIES» (link).
  • [number] to access the corresponding IMGT reference (popover).
  • (number) to see the corresponding IMGT note (popover).
Options:
  • You can show/hide columns (), download data () or put the table in fullscreen () using buttons.
See also (IMGT Scientific chart):
Select a species and a IMGT group to get the gene table:
Only IMGT available species/group are shown in the drop-down list.
The gene table can take several seconds to appear, please be patient.
Gene table of domestic cat (Felis catus) IGHC IMGT group:
IMGT gene nameIMGT allele nameScore for
IMGT allele
confirmation
FctChromosomosal
localization
ExonsR T PrIMGT/LIGM-DB reference sequencesIMGT/LIGM-DB sequences from the literature
Clone namesBreedAccession
numbers
Positions
in the sequence
Secondary
accession
numbers
Clone namesBreedAccession
numbers
Positions
in the sequence
IGHA IGHA*01 F B3 CH1 IMGT000328 2096586-2096891
IGHA IGHA*01 F B3 H-CH2 IMGT000328 2097098-2097430
IGHA IGHA*01 F B3 CH3-CHS IMGT000328 2097926-2098317
IGHA IGHA*01 F B3 M IMGT000328 2100229-2100440
IGHD IGHD*01 (1) B3 CH1 IMGT000328 1978701-1978973
IGHD IGHD*01 (1) B3 H1 IMGT000328 1979325-1979414
IGHD IGHD*01 (1) B3 H2 IMGT000328 1980534-1980602
IGHD IGHD*01 (1) B3 CH2 IMGT000328 1980858-1981184
IGHD IGHD*01 (1) B3 CH3 IMGT000328 1981344-1981658
IGHD IGHD*01 (1) B3 M1 IMGT000328 1992926-1993074
IGHD IGHD*01 (1) B3 M2 IMGT000328 1993402-1993407
IGHE IGHE*01 (2) B3 CH1 IMGT000328 2081625-2081924
IGHE IGHE*01 (2) B3 CH2 IMGT000328 2082058-2082381
IGHE IGHE*01 (2) B3 CH3 IMGT000328 2082478-2082798
IGHE IGHE*01 (2) B3 CH4-CHS IMGT000328 2082885-2083222
IGHE IGHE*01 (2) B3 M1 IMGT000328 2085198-2085323
IGHE IGHE*01 (2) B3 M2 IMGT000328 2085419-2085493
IGHG1A IGHG1A*01 F B3 CH1 IMGT000328 2023874-2024164
IGHG1A IGHG1A*01 F B3 H IMGT000328 2024441-2024497
IGHG1A IGHG1A*01 F B3 CH2 IMGT000328 2024625-2024954
IGHG1A IGHG1A*01 F B3 CH3-CHS IMGT000328 2025063-2025388
IGHG1A IGHG1A*01 F B3 M1 IMGT000328 2026702-2026832
IGHG1A IGHG1A*01 F B3 M2 IMGT000328 2029311-2029391
IGHG2A IGHG2A*01 (3) B3 CH1 IMGT000328 2043059-2043349
IGHG2A IGHG2A*01 (4) B3 H IMGT000328 2043600-2043658
IGHG2A IGHG2A*01 (3) B3 CH2 IMGT000328 2043786-2044115
IGHG2A IGHG2A*01 (3) B3 CH3-CHS IMGT000328 2044224-2044549
IGHG2A IGHG2A*01 (3) B3 M1 IMGT000328 2045862-2045992
IGHG2A IGHG2A*01 (3) B3 M2 IMGT000328 2047522-2047602
IGHG2B IGHG2B*01 F B3 CH1 IMGT000328 2061433-2061723
IGHG2B IGHG2B*01 F B3 H IMGT000328 2062000-2062056
IGHG2B IGHG2B*01 F B3 CH2 IMGT000328 2062183-2062512
IGHG2B IGHG2B*01 F B3 CH3-CHS IMGT000328 2062621-2062946
IGHG2B IGHG2B*01 F B3 M1 IMGT000328 2064262-2064392
IGHG2B IGHG2B*01 F B3 M2 IMGT000328 2067939-2068019
IGHM IGHM*01 F B3 CH1 IMGT000328 1971549-1971866
IGHM IGHM*01 F B3 CH2 IMGT000328 1971954-1972292
IGHM IGHM*01 F B3 CH3 IMGT000328 1972581-1972895
IGHM IGHM*01 F B3 CH4-CHS IMGT000328 1972988-1973379
IGHM IGHM*01 F B3 M1 IMGT000328 1975755-1975870
IGHM IGHM*01 F B3 M2 IMGT000328 1975973-1975978
IMGT notes:
  1. no CHS, noncanonical DONOR-SPLICE: ncc instead of ngt in CH3
  2. frameshift in M1: deletion of 2 nt
  3. noncanonical ACCEPTOR-SPLICE: nacnn instead of nagnn in H,frameshift in H: insertion of 2 nt
  4. frameshift in H: insertion of 2 nt