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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 subgroup 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
Clone names Accession numbers Positions in the sequence (L-V-GENE-UNIT) Secondary accession numbers Clone names Accession numbers Positions in the sequence
IGKV1 IGKV1-1 IGKV1-1*01 P (1) 13 NW_001099007 [1] 954072-954530
IGKV1-2 IGKV1-2*01 F 13 NW_001099007 [1] 903526-904030
IGKV1-3 IGKV1-3*01 P (2) 13 NW_001099007 [1]
IGKV1-4 IGKV1-4*01 P (1) 13 NW_001099007 [1] 837631-838130
IGKV1-5 IGKV1-5*01 F 13 NW_001099007 [1] 816762-817265
IGKV1-6 IGKV1-6*01 P (3) 13 NW_001099007 [1]
IGKV1-7 IGKV1-7*01 P (1) 13 NW_001099007 [1] 736417-736916
IGKV1-8 IGKV1-8*01 F 13 NW_001099007 [1] 720860-721356
IGKV1-9 IGKV1-9*01 F 13 NW_001099007 [1] 700080-700585
IGKV1-10 IGKV1-10*01 F 13 NW_001099007 [1] 664685-665190
IGKV1-11 IGKV1-11*01 F 13 NW_001099007 [1] 607442-607938
IGKV1-12 IGKV1-12*01 ORF (4) 13 NW_001099007 [1] 600819-601322
IGKV1-13 IGKV1-13*01 F 13 NW_001099007 [1] 583915-584419
IGKV1-14 IGKV1-14*01 F 13 NW_001099007 [1] 514656-515160
IGKV1-15 IGKV1-15*01 F 13 NW_001099007 [1] 502968-503472
IGKV1-16 IGKV1-16*01 P (5) 13 NW_001099007 [1] 453504-454008
IGKV1-17 IGKV1-17*01 F 13 NW_001099007 [1] 434301-434806
IGKV1-18 IGKV1-18*01 F 13 NW_001099007 [1] 427696-428201
IGKV1-19 IGKV1-19*01 ORF (6) 13 NW_001099007 [1] 837631-838130
IGKV1-20 IGKV1-20*01 F 13 NW_001099007 [1] 368685-369190
IGKV1-21 IGKV1-21*01 F 13 NW_001099007 [1] 331241-331746
IGKV1-22 IGKV1-22*01 F 13 NW_001099007 [1] 296904-297416
IGKV1-23 IGKV1-23*01 (7) F 13 NW_001099007 [1]
IGKV1S1 IGKV1S1*01 F 13 AY963709 [2] AY963735 [2]
IGKV1S2 IGKV1S2*01 F 13 AY963710 [2,3]
IGKV1S3 IGKV1S3*01 F 13 AY963711 [2,3]
IGKV1S4 IGKV1S4*01 F 13 AY963712 [2,3]
IGKV1S5 IGKV1S5*01 F 13 AY963713 [2,3]
IGKV1S6 IGKV1S6*01 F 13 AY963714 [2,3]
IGKV1S7 IGKV1S7*01 F 13 AY963715 [2,3]
IGKV1S8 IGKV1S8*01 F 13 AY963716 [2,3]
IGKV1S9 IGKV1S9*01 F 13 AY963717 [2,3]
IGKV1S10 IGKV1S10*01 F 13 AY963718 [2,3]
IGKV1S11 IGKV1S11*01 F 13 AY963719 [2,3]
IGKV1S12 IGKV1S12*01 F 13 AY963720 [2,3]
IGKV1S13 IGKV1S13*01 F 13 AY963721 [2,3]
IGKV1S14 IGKV1S14*01 F 13 AY963722 [2,3]
IGKV1S15 IGKV1S15*01 F 13 AY963723 [2,3]
IGKV1S16 IGKV1S16*01 F 13 AY963724 [2,3]
IGKV1S17 IGKV1S17*01 F 13 AY963725 [2,3]
IGKV1S18 IGKV1S18*01 P (1) 13 AY963726 [2,3]
IGKV1S19 IGKV1S19*01 F 13 AY963727 [2,3]
IGKV1S20 IGKV1S20*01 F 13 AY963728 [2,3]
IGKV1S21 IGKV1S21*01 F 13 AY963729 [2,3]
IGKV1S22 IGKV1S22*01 F 13 AY963730 [2,3]
IGKV1S23 IGKV1S23*01 F 13 AY963731 [2,3]
IGKV1S24 IGKV1S24*01 F 13 AY963732 [2,3]
IGKV1S25 IGKV1S25*01 F 13 AY963733 [2,3]
IGKV1S26 IGKV1S26*01 F 13 AY963734 [2,3]
IGKV1S27 IGKV1S27*01 F 13 AY963736 [2,3]
IGKV1S28 IGKV1S28*01 F 13 AY963737 [2,3]
IGKV2 IGKV2-1 IGKV2-1*01 F 13 NW_001099007 [1] 946262-947082
IGKV2-2 IGKV2-2*01 P (1) 13 NW_001099007 [1] 936077-936828
IGKV2-3 IGKV2-3*01 F 13 NW_001099007 [1] 911775-912527
IGKV2-4 IGKV2-4*01 P (8) 13 NW_001099007 [1] 867872-868688
IGKV2-5 IGKV2-5*01 P (1) 13 NW_001099007 [1] 807602-808409
IGKV2-6 IGKV2-6*01 P (9) 13 NW_001099007 [1] 779574-780393
IGKV2-7 IGKV2-7*01 P (8) 13 NW_001099007 [1] 766887-767692
IGKV2-8 IGKV2-8*01 P (7) 13 NW_001099007 [1]
IGKV2-9 IGKV2-9*01 P (5) 13 NW_001099007 [1] 566047-566838
IGKV2-10 IGKV2-10*01 P (10) 13 NW_001099007 [1]
IGKV2-11 IGKV2-11*01 ORF (11) 13 NW_001099007 [1]
IGKV2-12 IGKV2-12*01 P (1) 13 NW_001099007 [1]
IGKV2-13 IGKV2-13*01 P (1) 13 NW_001099007 [1] 257300-258100
IGKV2-14 IGKV2-14*01 F 13 NW_001099007 [1] 252785-253540
IGKV2-15 IGKV2-15*01 P (8) 13 NW_001099007 [1] 183179-183960
IGKV2-16 IGKV2-16*01 P (12) 13 NW_001099007 [1] 102913-103703
IGKV2S1 IGKV2S1*01 F 13 AY963738 [2,3] AY963741 [2]
IGKV2S2 IGKV2S2*01 F 13 AY963739 [2,3]
IGKV2S3 IGKV2S3*01 F 13 AY963740 [2,3]
IGKV2S4 IGKV2S4*01 F 13 AY963742 [2,3]
IGKV2S5 IGKV2S5*01 F 13 AY963743 [2,3]
IGKV2S6 IGKV2S6*01 P (1) 13 AY963744 [2,3]
IGKV2S7 IGKV2S7*01 P (13) 13 AY963745 [2,3]
IGKV2S8 IGKV2S8*01 F 13 AY963746 [2,3]
IGKV2S9 IGKV2S9*01 F 13 AY963747 [2,3]
IGKV2S10 IGKV2S10*01 F 13 AY963748 [2,3]
IGKV2S11 IGKV2S11*01 F 13 AY963749 [2,3]
IGKV2S12 IGKV2S12*01 F 13 AY963750 [2,3]
IGKV2S13 IGKV2S13*01 F 13 AY963751 [2,3]
IGKV2S14 IGKV2S14*01 ORF (14) 13 AY963753 [2,3] AY963752 [2]
IGKV2S15 IGKV2S15*01 F 13 AY963754 [2,3]
IGKV2S16 IGKV2S16*01 ORF (15) 13 AY963755 [2,3]
IGKV2S17 IGKV2S17*01 F 13 AY963756 [2,3]
IGKV2S18 IGKV2S18*01 F 13 AY963757 [2,3] AY963758 [2]
AY963761 [2]
IGKV2S19 IGKV2S19*01 F 13 AY963759 [2,3]
IGKV2S20 IGKV2S20*01 F 13 AY963760 [2,3]
IGKV3 IGKV3-1 IGKV3-1*01 F 13 NW_001099007 [1] 822242-822813
IGKV3-2 IGKV3-2*01 F 13 NW_001099007 [1] 685137-685680
IGKV3-3 IGKV3-3*01 F 13 NW_001099007 [1] 649748-650291
IGKV3-4 IGKV3-4*01 P (5) 13 NW_001099007 [1] 573370-573911
IGKV3-5 IGKV3-5*01 F 13 NW_001099007 [1] 484478-485021
IGKV3-6 IGKV3-6*01 P (7) 13 NW_001099007 [1]
IGKV3-7 IGKV3-7*01 ORF (16) 13 NW_001099007 [1]
IGKV3-8 IGKV3-8*01 P (7) 13 NW_001099007 [1]
IGKV3-9 IGKV3-9*01 F 13 NW_001099007 [1] 201434-202002
IGKV3-10 IGKV3-10*01 P (17) 13 NW_001099007 [1]
IGKV3-11 IGKV3-11*01 P (1) 13 NW_001099007 [1] 120461-121042
IGKV3S1 IGKV3S1*01 F 13 AY963762 [2,3]
IGKV3S2 IGKV3S2*01 F 13 AY963763 [2,3]
IGKV3S3 IGKV3S3*01 F 13 AY963764 [2,3]
IGKV3S4 IGKV3S4*01 F 13 AY963765 [2,3]
IGKV3S5 IGKV3S5*01 F 13 AY963766 [2,3]
IGKV3S6 IGKV3S6*01 F 13 AY963767 [2,3]
IGKV3S7 IGKV3S7*01 F 13 AY963768 [2,3]
IGKV3S8 IGKV3S8*01 F 13 AY963769 [2,3] AY963773 [2]
IGKV3S9 IGKV3S9*01 F 13 AY963770 [2,3]
IGKV3S10 IGKV3S10*01 F 13 AY963771 [2,3]
IGKV3S11 IGKV3S11*01 F 13 AY963772 [2,3]
IGKV4 IGKV4-1 IGKV4-1*01 P (18) 13 NW_001099007 [1]
IGKV4-2 IGKV4-2*01 P (1) 13 NW_001099007 [1] 108544-109154
IGKV4-3 IGKV4-3*01 F 13 NW_001099007 [1] 93522-94128
IGKV5 IGKV5-1 IGKV5-1*01 F 13 NW_001099007 [1] 210654-211173
IGKV5-2 IGKV5-2*01 F 13 NW_001099007 [1] 143077-143593
IGKV6 IGKV6-1 IGKV6-1*01 F 13 NW_001099007 [1] 851487-852071
IGKV6-2 IGKV6-2*01 F 13 NW_001099007 [1] 752570-753150
IGKV6-3 IGKV6-3*01 P (1) 13 NW_001099007 [1] 731358-731940
IGKV7 IGKV7-1 IGKV7-1*01 F 13 NW_001099007 [1] 236028-236659
IMGT notes:
  1. (1) Frameshifts in V-REGION
  2. (2) In frame STOP-CODON, no V-RS, no L-PART1
  3. (3) Frameshift in V-REGION, STOP-CODON in L-PART1, no V-HEPTAMER
  4. (4) Unexpected DONOR-SPLICE position
  5. (5) No INIT-CODON
  6. (6) Unexpected ACCEPTOR-SPLICE position
  7. (7) V-GENE is truncated in 5'
  8. (8) In frame STOP-CODON
  9. (9) In frame STOP-CODON, unexpected DONOR-SPLICE position
  10. (10) No INIT-CODON, no V-RS
  11. (11) No 1st-CYS, No V-RS
  12. (12) Frameshifts in V-REGION, no INIT-CODON
  13. (13) In frame STOP-CODON in FR3-IMGT
  14. (14) No 1st-CYS
  15. (15) No CONSEVED-TRP
  16. (16) No V-RS
  17. (17) Frameshifts in V-REGION, No V-RS, no L-PART1
  18. (18) In frame STOP-CODON, No L-PART1
IMGT references:
  1. [1] Gibbs R.A. et al., Science 316 (5822), 222-234 (2007). PMID: 17431167
  2. [2] Howard W.A. et al., Immunogenetics 57(3-4):210-218(2005). PMID: 15900492
  3. [3] Howard W.A. et al., unpublished.
See also (IMGT Scientific chart):