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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 IMGT/LIGM-DB locus reference sequences IMGT/LIGM-DB sequences from the literature
Breed Clone names Accession numbers Positions in the sequence
(L-V-GENE-UNIT)		 Secondary accession numbers Breed Clone names Accession numbers Positions in the sequence
(L-V-GENE-UNIT)
IGKV1 IGKV1-25 IGKV1-25*01 P (1) 15 thoroughbred CM009162.1 IMGT000053 368689..369281 thoroughbred CM000391.2 IMGT000060 376840..377432
IGKV1-36 IGKV1-36*01 F 15 thoroughbred CM009162.1 IMGT000053 199240..199738 thoroughbred CM000391.2 IMGT000060 207278..207776
IGKV2 IGKV2-24 IGKV2-24*01 P (2) 15 thoroughbred CM009162.1 IMGT000053 372622..372922 (37) thoroughbred CM000391.2 IMGT000060 380771..381071 (37)
IGKV2-27-1 IGKV2-27-1*01 P (2) 15 thoroughbred CM009162.1 IMGT000053 304913..305213 (37)
IGKV2-27-1*02 P (2) 15 thoroughbred CM000391.2 IMGT000060 312995..313295 (37)
IGKV2-28 IGKV2-28*01 F 15 thoroughbred CM009162.1 IMGT000053 295909..296683 thoroughbred CM000391.2 IMGT000060 303991..304765
IGKV2-29 IGKV2-29*01 P (3) 15 thoroughbred CM009162.1 IMGT000053 288080..288872
IGKV2-29*02 P (3) 15 thoroughbred CM000391.2 IMGT000060 296162..296954
IGKV2-33 IGKV2-33*01 F 15 thoroughbred CM009162.1 IMGT000053 236221..237016 thoroughbred CM000391.2 IMGT000060 244325..245120
IGKV2-39 IGKV2-39*01 F 15 thoroughbred CM009162.1 IMGT000053 167100..167900 thoroughbred CM000391.2 IMGT000060 175138..175938
IGKV2-40 IGKV2-40*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 157964..158738 thoroughbred CM000391.2 IMGT000060 166003..166777
IGKV2-41 IGKV2-41*01 P (5) 15 thoroughbred CM009162.1 IMGT000053 146094..147257 thoroughbred CM000391.2 IMGT000060 154109..155272
IGKV2-42 IGKV2-42*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 137399..138193
IGKV2-42*02 P (4) 15 thoroughbred CM000391.2 IMGT000060 145413..146208
IGKV2-45 IGKV2-45*01 F 15 thoroughbred CM009162.1 IMGT000053 103541..104341 thoroughbred CM000391.2 IMGT000060 111556..112356
IGKV2-46 IGKV2-46*01 F 15 thoroughbred CM009162.1 IMGT000053 79888..80544
IGKV2-46*02 F 15 thoroughbred CM000391.2 IMGT000060 87870..88526
IGKV2-48 IGKV2-48*01 F 15 thoroughbred CM009162.1 IMGT000053 56429..57242
IGKV2-48*02 F 15 thoroughbred CM000391.2 IMGT000060 64424..65237
IGKV2-49 IGKV2-49*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 48241..49017 thoroughbred CM000391.2 IMGT000060 56238..57014
IGKV3 IGKV3-35 IGKV3-35*01 P (6) 15 thoroughbred CM009162.1 IMGT000053 217165..217735 thoroughbred CM000391.2 IMGT000060 225203..225773
IGKV3-47 IGKV3-47*01 P (7) 15 thoroughbred CM009162.1 IMGT000053 67192..>67448 (37)
IGKV3-47*02 P (8) 15 thoroughbred CM009162.1 IMGT000053 75174..>75430 (37)
IGKV3-52 IGKV3-52*01 P (9) 15 thoroughbred CM009162.1 IMGT000053 35251..35810 thoroughbred CM000391.2 IMGT000060 43249..43808
IGKV3-56 IGKV3-56*01 P (10) 15 thoroughbred CM009162.1 IMGT000053 2000..2286 (37)
IGKV3-56*02 P (10) 15 thoroughbred CM000391.2 IMGT000060 10001..10287 (37)
IGKV4 IGKV4-1 IGKV4-1*01 F 15 + + thoroughbred CM009162.1 IMGT000053 complement(783976..784559) thoroughbred CM000391.2 IMGT000060 complement(776235..776818)
IGKV4-2 IGKV4-2*01 F 15 thoroughbred CM009162.1 IMGT000053 complement(770021..770602) thoroughbred CM000391.2 IMGT000060 complement(762280..762861)
IGKV4-4 IGKV4-4*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 complement(759038..759619) thoroughbred CM000391.2 IMGT000060 complement(751297..751878)
IGKV4-5 IGKV4-5*01 F 15 + + thoroughbred CM009162.1 IMGT000053 complement(735893..736485) thoroughbred CM000391.2 IMGT000060 complement(728156..728748)
IGKV4-5-1 IGKV4-5-1*01 F 15 thoroughbred CM009162.1 IMGT000053 complement(722686..723277) thoroughbred CM000391.2 IMGT000060 complement(714950..715541)
IGKV4-7 IGKV4-7*01 P (2) 15 thoroughbred CM009162.1 IMGT000053 complement(711003..711290) (37) thoroughbred CM000391.2 IMGT000060 (35) complement(703254..703840)
IGKV4-8 IGKV4-8*01 F 15 thoroughbred CM009162.1 IMGT000053 complement(670831..671413) thoroughbred CM000391.2 IMGT000060 complement(663116..663698)
IGKV4-9 IGKV4-9*01 F 15 + + thoroughbred CM009162.1 IMGT000053 complement(654306..654895) thoroughbred CM000391.2 IMGT000060 complement(646593..647182)
IGKV4-9-1 IGKV4-9-1*01 F 15 thoroughbred CM009162.1 IMGT000053 complement(646109..646695) thoroughbred CM000391.2 IMGT000060 complement(638395..638981)
IGKV4-10-1 IGKV4-10-1*01 P (11) 15 thoroughbred CM009162.1 IMGT000053 complement(629812..630407) thoroughbred CM000391.2 IMGT000060 complement(622098..622693)
IGKV4-10-2 IGKV4-10-2*01 P (12) 15 thoroughbred CM009162.1 IMGT000053 complement(625374..625660) (37) thoroughbred CM000391.2 IMGT000060 complement(617660..617946) (37)
IGKV4-11 IGKV4-11*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 complement(581377..581969) thoroughbred CM000391.2 IMGT000060 complement(573731..574323)
IGKV4-12 IGKV4-12*01 F 15 thoroughbred CM009162.1 IMGT000053 complement(568155..568746) thoroughbred CM000391.2 IMGT000060 complement(560509..561100)
IGKV4-12-1 IGKV4-12-1*01 P (13) 15 thoroughbred CM009162.1 IMGT000053 complement(562157..562744) thoroughbred CM000391.2 IMGT000060 complement(554511..555098)
IGKV4-13 IGKV4-13*01 P (2) 15 thoroughbred CM009162.1 IMGT000053 complement(548331..548615) (37) thoroughbred CM000391.2 IMGT000060 (34) complement(540657..541240)
IGKV4-13-1 IGKV4-13-1*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 complement(502128..502723) thoroughbred CM000391.2 IMGT000060 complement(494493..495088)
IGKV4-15 IGKV4-15*01 P (14) 15 thoroughbred CM009162.1 IMGT000053 complement(484212..484487) (37)
IGKV4-17 IGKV4-17*01 P (15) 15 thoroughbred CM009162.1 IMGT000053 complement(474677..474963) (37) thoroughbred CM000391.2 IMGT000060 (36) complement(483269..483855)
IGKV4-18 IGKV4-18*01 F 15 thoroughbred CM009162.1 IMGT000053 complement(436211..436798)
IGKV4-18*02 P (4) 15 thoroughbred CM000391.2 IMGT000060 complement(444348..444933)
IGKV4-19 IGKV4-19*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 complement(425243..425829) thoroughbred CM000391.2 IMGT000060 complement(433391..433969)
IGKV4-21 IGKV4-21*01 P (13) 15 thoroughbred CM009162.1 IMGT000053 complement(417082..417669)
IGKV4-21*02 P (13) 15 thoroughbred CM000391.2 IMGT000060 complement(425214..425799)
IGKV4-26 IGKV4-26*01 P (16) 15 thoroughbred CM009162.1 IMGT000053 complement(355834..356389) thoroughbred CM000391.2 IMGT000060 complement(363834..364389)
IGKV4-27 IGKV4-27*01 P (3) 15 thoroughbred CM009162.1 IMGT000053 323336..323902 thoroughbred CM000391.2 IMGT000060 331332..331898
IGKV4-31 IGKV4-31*01 P (17) 15 thoroughbred CM009162.1 IMGT000053 complement(256883..257457)
IGKV4-31*02 P (17) 15 thoroughbred CM000391.2 IMGT000060 complement(264986..265560)
IGKV5 IGKV5-43 IGKV5-43*01 F 15 thoroughbred CM009162.1 IMGT000053 128064..128584 thoroughbred CM000391.2 IMGT000060 136078..136598
IGKV6 IGKV6-38 IGKV6-38*01 ORF (18) 15 thoroughbred CM009162.1 IMGT000053 180996..181584 thoroughbred CM000391.2 IMGT000060 189034..189622
IGKV7 IGKV7-31-1 IGKV7-31-1*01 P (19) 15 thoroughbred CM009162.1 IMGT000053 complement(253971..254275) (37)
IGKV7-31-1*02 P (19) 15 thoroughbred CM000391.2 IMGT000060 complement(262074..262378) (37)
IGKV9 IGKV9-37 IGKV9-37*01 P (13) 15 thoroughbred CM009162.1 IMGT000053 193140..194035 thoroughbred CM000391.2 IMGT000060 201178..202073
IGKV9-54 IGKV9-54*01 ORF (20) 15 thoroughbred CM009162.1 IMGT000053 9199..10133
IGKV9-54*02 ORF (20) 15 thoroughbred CM009162.1 IMGT000053 17199..18133
IGKV(I) IGKV(I)-44 IGKV(I)-44*01 P (21) 15 thoroughbred CM009162.1 IMGT000053 109841..110108 (37) thoroughbred CM000391.2 IMGT000060 117855..118122 (37)
IGKV(I)-53 IGKV(I)-53*01 P (22) 15 thoroughbred CM009162.1 IMGT000053 29361..29948 thoroughbred CM000391.2 IMGT000060 37359..37946
IGKV(II) IGKV(II)-3 IGKV(II)-3*01 P (23) 15 thoroughbred CM009162.1 IMGT000053 765758..766063 (37) thoroughbred CM000391.2 IMGT000060 758017..758322 (37)
IGKV(II)-6 IGKV(II)-6*01 P (24) 15 thoroughbred CM009162.1 IMGT000053 716744..717030 (37) thoroughbred CM000391.2 IMGT000060 709022..709308 (37)
IGKV(II)-10 IGKV(II)-10*01 P (25) 15 thoroughbred CM009162.1 IMGT000053 639945..640246 (37) thoroughbred CM000391.2 IMGT000060 (33) 632231..632532 (37)
IGKV(II)-14 IGKV(II)-14*01 P (26) 15 thoroughbred CM009162.1 IMGT000053 490691..490980 (37)
IGKV(II)-16 IGKV(II)-16*01 P (27) 15 thoroughbred CM009162.1 IMGT000053 483100..483399 (37)
IGKV(II)-16D IGKV(II)-16D*01 P (27) 15 thoroughbred CM009162.1 IMGT000053 481111..481410 (37)
IGKV(II)-20 IGKV(II)-20*01 P (26) 15 thoroughbred CM009162.1 IMGT000053 423553..423853 (37)
IGKV(II)-20*02 P (26) 15 thoroughbred CM000391.2 IMGT000060 431703..432001 (37)
IGKV(II)-22 IGKV(II)-22*01 P (28) 15 thoroughbred CM009162.1 IMGT000053 406242..406540 (37)
IGKV(II)-22*02 P (28) 15 thoroughbred CM000391.2 IMGT000060 414377..414675 (37)
IGKV(II)-30 IGKV(II)-30*01 P (29) 15 thoroughbred CM009162.1 IMGT000053 278531..278812 (37) thoroughbred CM000391.2 IMGT000060 286616..286897 (37)
IGKV(II)-32 IGKV(II)-32*01 P (6) 15 thoroughbred CM009162.1 IMGT000053 complement(247188..247737) thoroughbred CM000391.2 IMGT000060 complement(255290..255839)
IGKV(II)-34 IGKV(II)-34*01 P (25) 15 thoroughbred CM009162.1 IMGT000053 230991..231295 (37) thoroughbred CM000391.2 IMGT000060 239094..239398 (37)
IGKV(II)-42-1 IGKV(II)-42-1*01 P (4) 15 thoroughbred CM009162.1 IMGT000053 complement(131611..132163) thoroughbred CM000391.2 IMGT000060 complement(139625..140177)
IGKV(II)-50 IGKV(II)-50*01 P (21) 15 thoroughbred CM009162.1 IMGT000053 45759..46059 (37) thoroughbred CM000391.2 IMGT000060 53756..54056 (37)
IGKV(II)-51 IGKV(II)-51*01 P (30) 15 thoroughbred CM009162.1 IMGT000053 39528..39812 (37) thoroughbred CM000391.2 IMGT000060 47525..47809 (37)
IGKV(II)-55 IGKV(II)-55*01 P (31) 15 thoroughbred CM009162.1 IMGT000053 5979..6247 (37)
IGKV(II)-55*02 P (31) 15 thoroughbred CM000391.2 IMGT000060 13979..14247 (37)
IGKV(III) IGKV(III)-23 IGKV(III)-23*01 P (32) 15 thoroughbred CM009162.1 IMGT000053 385686..385977 (37) thoroughbred CM000391.2 IMGT000060 393831..394122 (37)
IMGT notes:
  1. (1) several STOP-CODON in V-REGION, frameshift in V-REGION
  2. (2) no L-PART1, frameshift in V-REGION
  3. (3) no CONSERVED-TRP: STOP-CODON instead of Trp
  4. (4) frameshift in V-REGION
  5. (5) frameshifts in V-REGION
  6. (6) no INIT-CODON, frameshift in V-REGION
  7. (7) no L-PART1, frameshifts in V-REGION, deletions in V-REGION: AA 105 to 111 are missing, no V-RS
  8. (8) STOP-CODON in L-PART1, frameshifts in V-REGION, deletions in V-REGION: AA 105 to 111 are missing, no V-RS
  9. (9) STOP-CODON in L-PART1
  10. (10) frameshift in L-PART1, no INIT-CODON, frameshifts in V-REGION, no V-RS
  11. (11) several STOP-CODON in V-REGION
  12. (12) no L-PART1, several STOP-CODON in V-REGION, no V-NONAMER
  13. (13) frameshift in V-REGION, STOP-CODON in V-REGION
  14. (14) no L-PART1, no L-PART2, frameshifts in V-REGION, no V-RS
  15. (15) no L-PART1, STOP-CODON in V-REGION
  16. (16) frameshift in L-PART1, frameshifts in V-REGION
  17. (17) frameshift in L-PART2
  18. (18) noncanonical V-HEPTAMER: caccatg instead of cacagtg
  19. (19) no L-PART1, frameshift in L-PART2, frameshifts in V-REGION, STOP-CODON in V-REGION
  20. (20) unexpected V-INTRON length
  21. (21) no L-PART2, frameshifts in V-REGION
  22. (22) no INIT-CODON, frameshift in L-PART2, frameshift in V-REGION
  23. (23) no L-PART1, no L-PART2, frameshift in V-REGION, no V-RS
  24. (24) no L-PART1, no L-PART2, frameshifts in V-REGION, no V-RS
  25. (25) frameshifts in V-REGION, no V-RS
  26. (26) no L-PART1, frameshifts in V-REGION, no V-RS
  27. (27) no L-PART1, frameshift in V-REGION, several STOP-CODON in V-REGION, no V-RS
  28. (28) frameshift in V-REGION, no V-RS
  29. (29) frameshift in L-PART2, frameshift in V-REGION, no V-RS
  30. (30) no DONOR-SPLICE, no L-PART2, frameshift in V-REGION
  31. (31) no L-PART1, frameshift in L-PART2, frameshifts in V-REGION, no V-RS
  32. (32) no L-PART1, frameshifts in V-REGION, STOP-CODON in V-REGION, no V-RS
  33. (33) frameshifts in V-REGION, no V-HEPTAMER
  34. (34) frameshift in L-PART1, frameshift in V-REGION
  35. (35) no INIT-CODON, frameshifts in V-REGION
  36. (36) STOP-CODON in V-REGION
  37. (37) Positions of V-REGION
Created:
18/12/2020
Last updated:
22/09/2023
Authors:
Anna Tran