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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 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 Secondary accession numbers Strain Clone names Accession numbers Positions in the sequence
IGHJ1 IGHJ1*01 (F) + + 4RACE U40560 [1] #c
IGHJ2 IGHJ2*01 (F) + + 2spleen U50605 [1] #c
IGHJ3 IGHJ3*01 (F) + + 6spleen U50604 [1] #c
IGHJ4 IGHJ4*01 (F) + + 8RACE U50607 [1] #c
IGHJ5 IGHJ5*01 (F) + + 1RACE U50606 [1] #c
IGHJ6 IGHJ6*01 (F) + + 7spleen U50608 [1] #c
IGHJ7 IGHJ7*01 (F) + + 1spleen U50609 [1] #c
IGHJ8 IGHJ8*01 (F) + + 7RACE U50610 [1] #c

#c: rearranged cDNA.

IMGT references:
  1. [1] Bernstein R.M. et al., Proc. Natl. Acad. Sci. U.S.A., 93, 3289-3293 (1996). PMID: 8622930
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