Here you are: IMGT Web resources > IMGT Repertoire (IG and TR) > 1. Locus and genes

"+" 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 subgroup IMGT gene name IMGT allele name Fct Haplotypes 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 (V-REGION) Secondary accession numbers Strain Clone names Accession numbers Positions in the sequence (V-REGION)
IGKV1 IGKV1S1 IGKV1S1*01 F K1 b4 v-kappa-20 K02131 [1] (1) 341-643
IGKV1S2 IGKV1S2*01 F K1 b4 V18b X02336 [2] 196-495
IGKV1S2*02 F K1 b4 V18b K02438 [2] 196-495
IGKV1S3 IGKV1S3*01 F K1 b4 V19a X02337 [2] 320-615
IGKV1S3*02 F K1 b4 V19a K02439 [2] 319-614
IGKV1S4 IGKV1S4*01 ORF K1 b4 V19b K02440 [2] (2) 293-586 V19b X02338 [2] (2)
IGKV1S5 IGKV1S5*01 F K1 b4 V18a X00977 [2] 319-623
IGKV1S6 IGKV1S6*01 F K1 b95 Vg(11-1) X14364 [3] 320-612
IGKV1S7 IGKV1S7*01 F K1 b5 1-010 AF135645 [4] (3) 30-322
IGKV1S8 IGKV1S8*01 F K1 b5 1-011 AF135646 [4] (3) 27-325
IGKV1S9 IGKV1S9*01 F K1 b5 1-062 AF135647 [4] (3) 27-331
IGKV1S10 IGKV1S10*01 F K1 b5 1-065 AF135648 [4] (3) 27-322
IGKV1S11 IGKV1S11*01 F K1 b5 1-079 AF135649 [4] (3) 27-323 4-181 AF135641 [4] (3)
IGKV1S12 IGKV1S12*01 F K1 b5 1-096 AF135650 [4] (3) 27-323
IGKV1S13 IGKV1S13*01 P K1 b5 1-108 AF135651 [4] (4) 27-325
IGKV1S14 IGKV1S14*01 F K1 b5 1-112 AF135652 [4] (3) 27-323
IGKV1S15 IGKV1S15*01 F K1 b5 1-123 AF135653 [4] (3) 27-326
IGKV1S16 IGKV1S16*01 F K1 b5 1-135 AF135654 [4] (3) 27-331
IGKV1S17 IGKV1S17*01 F K1 b5 1-144 AF135655 [4] (3) 26-321
IGKV1S18 IGKV1S18*01 F K1 b5 1-211 AF135656 [4] (3) 27-331
IGKV1S19 IGKV1S19*01 F K1 b5 1-237 AF135657 [4] (3) 27-325
IGKV1S20 IGKV1S20*01 F K1 b5 1-301 AF135658 [4] (3) 27-323
IGKV1S21 IGKV1S21*01 F K1 b5 1-314 AF135659 [4] (3) 27-313
IGKV1S22 IGKV1S22*01 F K1 b5 4-002 AF135660 [4] (3) 27-325
IGKV1S23 IGKV1S23*01 F K1 b5 4-063 AF135661 [4] (3) 30-326
IGKV1S24 IGKV1S24*01 F K1 b5 4-067 AF135662 [4] (3) 27-323
IGKV1S25 IGKV1S25*01 F K1 b5 4-229 AF135663 [4] (3) 27-323
IGKV1S26 IGKV1S26*01 F K1 b5 2-031 AF135619 [4] (5) 27-317
IGKV1S27 IGKV1S27*01 [F] K1 b5 1-035 AF135601 [4] (3) ° 27-325
IGKV1S28 IGKV1S28*01 [F] K1 b5 1-046 AF135602 [4] (3) ° 27-319
IGKV1S29 IGKV1S29*01 [F] K1 b5 1-071 AF135603 [4] (3) ° 30-320
IGKV1S30 IGKV1S30*01 [F] K1 b5 1-074 AF135604 [4] (3) ° 27-334
IGKV1S31 IGKV1S31*01 [F] K1 b5 1-085 AF135605 [4] (3) ° 30-326
IGKV1S32 IGKV1S32*01 [F] K1 b5 1-091 AF135606 [4] (3) ° 27-322
IGKV1S33 IGKV1S33*01 [F] K1 b5 1-102 AF135607 [4] (3) ° 27-325
IGKV1S34 IGKV1S34*01 [F] K1 b5 1-122 AF135608 [4] (3) ° 30-325
IGKV1S35 IGKV1S35*01 [F] K1 b5 1-127 AF135609 [4] (3) ° 30-316
IGKV1S36 IGKV1S36*01 [F] K1 b5 1-132 AF135610 [4] (3) ° 30-322
IGKV1S37 IGKV1S37*01 [F] K1 b5 1-141 AF135611 [4] (3) ° 30-325
IGKV1S38 IGKV1S38*01 [P] K1 b5 1-223 AF135612 [4] (6) ° 26-321
IGKV1S39 IGKV1S39*01 [F] K1 b5 1-232 AF135613 [4] (3) ° 30-320
IGKV1S40 IGKV1S40*01 [F] K1 b5 1-234 AF135614 [4] (3) ° 27-331
IGKV1S41 IGKV1S41*01 [F] K1 b5 1-274 AF135615 [4] (3) ° 27-331
IGKV1S42 IGKV1S42*01 [F] K1 b5 1-297 AF135616 [4] (3) ° 27-320
IGKV1S43 IGKV1S43*01 [P] K1 b5 1-325 AF135617 [4] (7) ° 27-295
IGKV1S44 IGKV1S44*01 [F] K1 b5 1-326 AF135618 [4] (3) ° 27-319
IGKV1S45 IGKV1S45*01 [F] K1 b5 4-005 AF135620 [4] (3) ° 27-319
IGKV1S46 IGKV1S46*01 [F] K1 b5 4-006 AF135621 [4] (3) ° 27-331
IGKV1S47 IGKV1S47*01 [F] K1 b5 4-012 AF135622 [4] (3) ° 27-317
IGKV1S48 IGKV1S48*01 [F] K1 b5 4-013 AF135623 [4] (3) ° 27-323
IGKV1S49 IGKV1S49*01 [F] K1 b5 4-034 AF135624 [4] (3) ° 27-325
IGKV1S50 IGKV1S50*01 [F] K1 b5 4-052 AF135625 [4] (3) ° 27-325
IGKV1S51 IGKV1S51*01 [F] K1 b5 4-054 AF135626 [4] (3) ° 27-317
IGKV1S52 IGKV1S52*01 [F] K1 b5 4-068 AF135627 [4] (3) ° 27-323
IGKV1S53 IGKV1S53*01 [F] K1 b5 4-069 AF135628 [4] (3) ° 27-323
IGKV1S54 IGKV1S54*01 [F] K1 b5 4-070 AF135629 [4] (3) ° 30-328
IGKV1S55 IGKV1S55*01 [F] K1 b5 4-082 AF135630 [4] (3) ° 27-325
IGKV1S56 IGKV1S56*01 [F] K1 b5 4-092 AF135631 [4] (3) ° 27-323
IGKV1S57 IGKV1S57*01 [F] K1 b5 4-110 AF135632 [4] (3) ° 27-319
IGKV1S58 IGKV1S58*01 [F] K1 b5 4-114 AF135633 [4] (3) ° 30-293
IGKV1S59 IGKV1S59*01 [F] K1 b5 4-116 AF135634 [4] (3) ° 27-331
IGKV1S60 IGKV1S60*01 [F] K1 b5 4-118 AF135635 [4] (3) ° 27-331
IGKV1S61 IGKV1S61*01 [F] K1 b5 4-125 AF135636 [4] (3) ° 27-325
IGKV1S62 IGKV1S62*01 [F] K1 b5 4-156 AF135637 [4] (3) ° 30-334
IGKV1S63 IGKV1S63*01 [F] K1 b5 4-164 AF135638 [4] (3) ° 27-323
IGKV1S64 IGKV1S64*01 [F] K1 b5 4-173 AF135639 [4] (3) ° 27-323
IGKV1S65 IGKV1S65*01 [F] K1 b5 4-177 AF135640 [4] (3) ° 27-317
IGKV1S66 IGKV1S66*01 [F] K1 b5 4-186 AF135642 [4] (3) ° 27-323
IGKV1S67 IGKV1S67*01 [F] K1 b5 4-209 AF135643 [4] (3) ° 27-317
IGKV1S68 IGKV1S68*01 [F] K1 b5 4-213 AF135644 [4] (3) ° 27-323

°: genomic DNA, but not known as being germline or rearranged.

IMGT notes:
  1. (1) Functional because of two STOP-CODONs in CDR3-IMGT which may disappear during rearrangements.
  2. (2) ORF because of non canonical V-NONAMER: ACAACTCCC instead of ACAAAAACA.
  3. (3) V-GENE is partial: No L-PART1, no V-HEPTAMER and no V-NONAMER, and V-REGION is partial: partial CDR3-IMGT.
  4. (4) Pseudogene because of STOP-CODON in FR2-IMGT. V-GENE is partial: No L-PART1, no V-HEPTAMER and no V-NONAMER, and V-REGION is partial: partial CDR3-IMGT.
  5. (5) V-GENE is partial: No L-PART1.
  6. (6) Pseudogene because of frameshift in L-PART2 and in FR2-IMGT. V-GENE is partial: No L-PART1, no V-HEPTAMER and no V-NONAMER, and V-REGION is partial: partial CDR3-IMGT.
  7. (7) Pseudogene because of frameshift in FR2-IMGT and STOP-CODON in FR3-IMGT. V-GENE is partial: No L-PART1, no V-HEPTAMER and no V-NONAMER, and V-REGION is partial: partial CDR3-IMGT.
IMGT references:
  1. [1] Lieberman R. et al., J. Immunol., 133, 2753-2756 (1984). PMID: 6434636
  2. [2] Heidmann O. et al., Nature, 311, 74-76 (1984). PMID: 6433207
  3. [3] Ayadi H. et al., Eur. J. Immunol., 20, 259-264 (1990). PMID: 2107083
  4. [4] Sehgal D. et al., Immunogenetics, 50, 31-42 (1999). PMID: 10541804
See also (IMGT Scientific chart):