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 Unknown IMGT000358 [1] 2096683-2096988
IGHA IGHA*01 F B3 H-CH2 IMGT000328 Unknown IMGT000358 [1] 2097195-2097527
IGHA IGHA*01 F B3 CH3-CHS IMGT000328 Unknown IMGT000358 [1] 2098023-2098414
IGHA IGHA*01 F B3 M IMGT000328 Unknown IMGT000358 [1] 2100327-2100538
IGHD IGHD*01 P B3 CH1 IMGT000328 Unknown IMGT000358 [1] 1978793-1979065
IGHD IGHD*01 P B3 H1 IMGT000328 Unknown IMGT000358 [1] 1979417-1979506
IGHD IGHD*01 P B3 H2 IMGT000328 Unknown IMGT000358 [1] 1978793-1979065
IGHD IGHD*01 P B3 CH2 IMGT000328 Unknown IMGT000358 [1] 1980950-1981276
IGHD IGHD*01 P B3 CH3 IMGT000328 Unknown IMGT000358 [1] 1981436-1981747
IGHD IGHD*01 P B3 M1 IMGT000328 Unknown IMGT000358 [1] 1993017-1993165
IGHD IGHD*01 P B3 M2 IMGT000328 Unknown IMGT000358 [1] 1993493-1993498
IGHE IGHE*01 P B3 CH1 IMGT000328 Unknown
IGHE IGHE*01 P B3 CH2 IMGT000328 Unknown
IGHE IGHE*01 P B3 CH3 IMGT000328 Unknown
IGHE IGHE*01 P B3 CH4-CHS IMGT000328 Unknown
IGHE IGHE*01 P B3 M1 IMGT000328 Unknown
IGHE IGHE*01 P B3 M2 IMGT000328 Unknown
IGHE IGHE*02 (1) B3 CH1 IMGT000358 [1] 2081723-2082022
IGHE IGHE*02 (1) B3 CH2 IMGT000358 [1] 2082156-2082479
IGHE IGHE*02 (1) B3 CH3 IMGT000358 [1] 2082576-2082896
IGHE IGHE*02 (1) B3 CH4-CHS IMGT000358 [1] 2082983-2083320
IGHE IGHE*02 (1) B3 M1 IMGT000358 [1] 2085299-2085424
IGHE IGHE*02 (1) B3 M2 IMGT000358 [1] 2085520-2085594
IGHG1A IGHG1A*01 F B3 CH1 IMGT000328 Unknown IMGT000358 [1] 2023964-2024254
IGHG1A IGHG1A*01 F B3 H IMGT000328 Unknown IMGT000358 [1] 2024531-2024587
IGHG1A IGHG1A*01 F B3 CH2 IMGT000328 Unknown IMGT000358 [1] 2024715-2025044
IGHG1A IGHG1A*01 F B3 CH3-CHS IMGT000328 Unknown IMGT000358 [1] 2025153-2025478
IGHG1A IGHG1A*01 F B3 M1 IMGT000328 Unknown IMGT000358 [1] 2026792-2026922
IGHG1A IGHG1A*01 F B3 M2 IMGT000328 Unknown IMGT000358 [1] 2029402-2029482
IGHG2A IGHG2A*01 P B3 CH1 IMGT000328 Unknown IMGT000358 [1] 2043152-2043442
IGHG2A IGHG2A*01 P B3 H IMGT000328 Unknown IMGT000358 [1] 2043693-2043751
IGHG2A IGHG2A*01 P B3 CH2 IMGT000328 Unknown IMGT000358 [1] 2043879-2044208
IGHG2A IGHG2A*01 P B3 CH3-CHS IMGT000328 Unknown IMGT000358 [1] 2044317-2044642
IGHG2A IGHG2A*01 P B3 M1 IMGT000328 Unknown IMGT000358 [1] 2045956-2046086
IGHG2A IGHG2A*01 P B3 M2 IMGT000328 Unknown IMGT000358 [1] 2047616-2047696
IGHG2B IGHG2B*01 F B3 CH1 IMGT000328 Unknown IMGT000358 [1] 2061528-2061818
IGHG2B IGHG2B*01 F B3 H IMGT000328 Unknown IMGT000358 [1] 2062095-2062151
IGHG2B IGHG2B*01 F B3 CH2 IMGT000328 Unknown IMGT000358 [1] 2062278-2062607
IGHG2B IGHG2B*01 F B3 CH3-CHS IMGT000328 Unknown IMGT000358 [1] 2062716-2063041
IGHG2B IGHG2B*01 F B3 M1 IMGT000328 Unknown IMGT000358 [1] 2064358-2064488
IGHG2B IGHG2B*01 F B3 M2 IMGT000328 Unknown IMGT000358 [1] 2068036-2068116
IGHM IGHM*01 F B3 CH1 IMGT000328 2096586-1971866 IMGT000358 [1] 1971641-1971958
IGHM IGHM*01 F B3 CH2 IMGT000328 2097124-1972292 IMGT000358 [1] 1972046-1972384
IGHM IGHM*01 F B3 CH3 IMGT000328 2097926-1972895 IMGT000358 [1] 1972673-1972987
IGHM IGHM*01 F B3 CH4-CHS IMGT000328 2082885-1973379 IMGT000358 [1] 1973080-1973471
IGHM IGHM*01 (1) B3 M1 IMGT000328 2085198-1975870 IMGT000358 [1] 1975847-1975962
IGHM IGHM*01 F B3 M2 IMGT000328 2085419-1975978 IMGT000358 [1] 1976065-1976070
IMGT notes:
  1. frameshift in M1: deletion of 2 nt
IMGT references:
  1. Harris,A.J. et al., J Hered, vol. 116, no. 6, 2025, pp. 818-825.