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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 localization R T Pr Positions in the locus IMGT/LIGM-DB reference sequences IMGT/LIGM-DB sequences from the literature
Strain Clone names Accession numbers Positions in the sequence
(J-GENE-UNIT)
Secondary accession numbers Strain Clone names Accession numbers Positions in the sequence
(J-GENE-UNIT)
IGLJ1 IGLJ1*01 F 16 (13.0 cM) + BALB/c J1 MAP V00813 [3] BALB/c M315J1 MAP X58419 [2]
X58411 [2] (4)
C57BL/6J CM001009.3 MAP IMGT000117 207404..207470
IGLJ2 IGLJ2*01 F 16 (13.0 cM) + BALB/c J2 MAP J00593 [1] BALB/c M315J2 MAP X58420 [2]
X58414 [2] (5)
C57BL/6J CM001009.3 MAP IMGT000117 70432..70497
IGLJ2P IGLJ2P*01 ORF (6) 16 (13.0 cM) C57BL/6J CM001009.3 MAP IMGT000117 71067..71135
IGLJ3 IGLJ3*01 F 16 (13.0 cM) + BALB/c J3 MAP J00583 [1] BALB/c M315J3 MAP X58421 [2]
X58411 [2] (4)
C57BL/6J CM001009.3 MAP IMGT000117 203589..203654
IGLJ3P IGLJ3P*01 ORF (1) 16 (13.0 cM) BALB/c Pseudo J3 MAP J00584 [1] C57BL/6J CM001009.3 MAP IMGT000117 204288..204324 (7)
IGLJ4 IGLJ4*01 ORF (2) 16 (13.0 cM) BALB/c PseudoJL4 MAP J00596 [1] (3) BALB/c M315J4 MAP X58422 [2] 203617..203654
X58414 [2] (5)
C57BL/6J CM001009.3 MAP IMGT000117 74133..74196

MAP: Mapped reference sequences.

IMGT notes:
  1. (1) no J-HEPTAMER
  2. (2) noncanonical DONOR-SPLICE: nat instead of ngt, noncanonical J-HEPTAMER:atcagtg instead of cacagtg
  3. (3) Note that the sequences of Mus musculus IGLJ4*01 and Mus spretus IGLJ4*01 are identical.
  4. (4) X58411 contains the IGLJ1, IGLC1, IGLJ3 and IGLC3 genes from the BALB/c MOPC 315 B cell line. Originally these genes were submitted independently (X58411 being the IGLC1 accession number). Secondary accession numbers of X58411 correspond to the primary accession numbers of IGLJ1 (X58419/M28320), IGLJ3 (X58421/M28322/M28323) and IGLC3 (X58415/M28327) from MOPC 315.
  5. (5) X58414 contains the IGLJ2, IGLC2, IGLJ4 and IGLC4 genes from the BALB/c MOPC 315 B cell line. Originally these genes were submitted independently (X58414 being the IGLC2 accession number). Secondary accession numbers of X58414 correspond to the primary accession numbers of IGLJ2 (X58420/M28321), IGLJ4 (X58422/M28324) and IGLC4 (X58416) from MOPC 315. The secondary accession number X58410/M28329 corresponds to the primary accession number of IGLC4 from BALB/c J 558 cell line, whose sequence is identical to that of MOPC 315.
  6. (6) noncanonical DONOR-SPLICE: nat instead of ngt, noncanonical J-MOTIF: FSXN instead of FGXG, noncanonical J-HEPTAMER: cattgcc instead of cattgtg, noncanonical J-NONAMER: ggatcttgc instead of ggtttttgt
  7. (7) Positions of J-REGION
IMGT references:
  1. [1] Miller J. et al., Nature, 295, 428-430 (1982). PMID:6799835
  2. [2] Weiss S. and Wu GE, EMBO J., 6, 927-937 (1987). PMID:3109891
  3. [3] Bernard O. et al., Cell, 15, 1133-1144 (1978). PMID:103630
Created:
03/11/1999
Last updated:
05/10/2022
Authors:
Dominique Scaviner and Yascim Kamel