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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 gene name IMGT allele name Fct Chromosomal
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
Secondary accession numbers Breed Clone names Accession numbers Positions in the sequence
IGKJ1 IGKJ1*01 ORF (1) 3 Texel IMGT000010 134977..135054 White Alpine Jk2 AF038132 [1] (5) <1..34 (7)
IGKJ2 IGKJ2*01 ORF (2) 3 Texel IMGT000010 135283..135355 White Alpine Jk3 AF038132 [1] 261..333
IGKJ3 IGKJ3*01 F (3) 3 + Texel IMGT000010 135619..135694 White Alpine Jk1 AF038132 [1] (6) 637..>669 (7)
IGKJ4 IGKJ4*01 ORF (4) 3 Texel IMGT000010 135935..136007
IMGT notes:
  1. (1) Noncanonical J-HEPTAMER: TGTTGTG instead of CACTGTG.
  2. (2) Noncanonical J-HEPTAMER: ACCATGG instead of CACTGTG and noncanonical J-NONAMER: GGTATTTGT instead of GGTTTTCGT.
  3. (3) Noncanonical J-NONAMER: GGTTTTCGT instead of GGTTTTTGT, however this J-GENE has been found rearranged
  4. (4) Noncanonical J-HEPTAMER: AAATCTG instead of CACTGTG.
  5. (5) Functionality different from the reference sequence : functionality 'F', Partial J-REGION in 5'.
  6. (6) Partial J-REGION in 3'.
  7. (7) positions in J-REGION.
IMGT references:
  1. [1] Hein W.R. and Dudler L., Int. Immunol., 10, 1251-1259 (1998). PMID: 9786424
Last updated:
Delphine Guiraudou, Viviane Nguefack Ngoune
Chantal Ginestoux