Incidental Mutation 'R0117:Kcna2'
ID 20868
Institutional Source Beutler Lab
Gene Symbol Kcna2
Ensembl Gene ENSMUSG00000040724
Gene Name potassium voltage-gated channel, shaker-related subfamily, member 2
Synonyms Akr6a4, Kca1-2, Kv1.2, Mk-2
MMRRC Submission 038403-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0117 (G1)
Quality Score 225
Status Validated (trace)
Chromosome 3
Chromosomal Location 107008462-107022321 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 107012670 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Cysteine at position 417 (Y417C)
Ref Sequence ENSEMBL: ENSMUSP00000143798 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000038695] [ENSMUST00000196403] [ENSMUST00000197470]
AlphaFold P63141
Predicted Effect probably damaging
Transcript: ENSMUST00000038695
AA Change: Y417C

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: Y417C

DomainStartEndE-ValueType
BTB 33 133 1.2e-9 SMART
Pfam:Ion_trans 162 421 6.2e-53 PFAM
Pfam:Ion_trans_2 329 414 4.9e-16 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000196403
AA Change: Y417C

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: Y417C

DomainStartEndE-ValueType
BTB 33 133 1.2e-9 SMART
low complexity region 164 179 N/A INTRINSIC
Pfam:Ion_trans 224 409 1.3e-36 PFAM
Pfam:Ion_trans_2 329 414 7.9e-16 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000197470
AA Change: Y417C

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: Y417C

DomainStartEndE-ValueType
BTB 33 133 1.2e-9 SMART
Pfam:Ion_trans 162 421 6.2e-53 PFAM
Pfam:Ion_trans_2 329 414 4.9e-16 PFAM
Meta Mutation Damage Score 0.9555 question?
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.0%
  • 10x: 95.2%
  • 20x: 88.1%
Validation Efficiency 95% (59/62)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Potassium channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member contains six membrane-spanning domains with a shaker-type repeat in the fourth segment. It belongs to the delayed rectifier class, members of which allow nerve cells to efficiently repolarize following an action potential. The coding region of this gene is intronless, and the gene is clustered with genes KCNA3 and KCNA10 on chromosome 1. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele exhibit postnatal lethality, increased susceptibility to spontaneous and chemically-induced seizures and altered neuron electrophysiology. Mice homozygous for an ENU-induced allele exhibit abnormal gait, impaired coordination, and premature lethality. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 54 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Angptl4 A T 17: 33,999,776 (GRCm39) I141K probably damaging Het
Bbs10 T A 10: 111,135,194 (GRCm39) D102E possibly damaging Het
Btaf1 A G 19: 36,947,368 (GRCm39) T486A probably benign Het
Casp8ap2 A G 4: 32,640,817 (GRCm39) T624A probably benign Het
Cep192 T C 18: 67,983,808 (GRCm39) probably null Het
Cep76 T C 18: 67,759,744 (GRCm39) Y323C possibly damaging Het
CK137956 T A 4: 127,840,585 (GRCm39) T374S possibly damaging Het
Cyp2b23 A T 7: 26,372,539 (GRCm39) F359I probably benign Het
Cyp4f13 G T 17: 33,149,580 (GRCm39) H194Q probably damaging Het
Dach1 C T 14: 98,406,184 (GRCm39) G188R probably damaging Het
Def8 G A 8: 124,183,234 (GRCm39) A278T probably damaging Het
Dscam T C 16: 96,474,878 (GRCm39) H1228R probably benign Het
Eps15 T A 4: 109,240,016 (GRCm39) D667E probably damaging Het
Fig4 G A 10: 41,106,037 (GRCm39) R716* probably null Het
Fmnl3 G C 15: 99,220,619 (GRCm39) probably benign Het
Gmpr T A 13: 45,670,560 (GRCm39) probably null Het
Gsta5 C T 9: 78,211,700 (GRCm39) T154I probably damaging Het
Helz2 C A 2: 180,874,552 (GRCm39) G1981C probably damaging Het
Herc2 C A 7: 55,863,359 (GRCm39) probably benign Het
Htr2a G A 14: 74,882,533 (GRCm39) R173H probably damaging Het
Impg2 A G 16: 56,082,005 (GRCm39) N979S probably damaging Het
Lmf1 G T 17: 25,874,965 (GRCm39) probably benign Het
Lmntd2 G A 7: 140,790,036 (GRCm39) R659C possibly damaging Het
Mcm9 A G 10: 53,413,832 (GRCm39) V416A possibly damaging Het
Mgarp G T 3: 51,304,133 (GRCm39) probably benign Het
Mpp3 G A 11: 101,891,399 (GRCm39) P580S probably damaging Het
Nfat5 C T 8: 108,065,707 (GRCm39) R156W probably damaging Het
Ninl G A 2: 150,779,593 (GRCm39) R269W probably damaging Het
Or7e170 T C 9: 19,795,595 (GRCm39) E2G probably damaging Het
Or8g19 T A 9: 39,056,146 (GRCm39) I250N probably damaging Het
Or8h8 T A 2: 86,753,214 (GRCm39) I221F probably damaging Het
Pcnt A T 10: 76,244,561 (GRCm39) L1173* probably null Het
Pde6c A G 19: 38,139,979 (GRCm39) E314G probably damaging Het
Peds1 A G 2: 167,486,678 (GRCm39) probably benign Het
Phldb1 T C 9: 44,623,003 (GRCm39) M1V probably null Het
Pkdrej T A 15: 85,700,300 (GRCm39) probably null Het
Plch2 T A 4: 155,069,815 (GRCm39) probably benign Het
Pld2 G A 11: 70,448,214 (GRCm39) R887Q probably benign Het
Plxnb1 A G 9: 108,934,286 (GRCm39) D838G possibly damaging Het
Postn C T 3: 54,290,902 (GRCm39) probably benign Het
Prl8a8 T A 13: 27,692,473 (GRCm39) I172F probably damaging Het
Psmc4 A T 7: 27,742,165 (GRCm39) probably benign Het
Rabgap1 T A 2: 37,451,897 (GRCm39) probably null Het
Rapgef2 A G 3: 78,986,484 (GRCm39) S1017P probably benign Het
Rbak G T 5: 143,159,387 (GRCm39) Y555* probably null Het
Serpina1c T G 12: 103,861,271 (GRCm39) *414C probably null Het
Sntb1 A G 15: 55,769,749 (GRCm39) V80A probably benign Het
Sorl1 A G 9: 41,944,873 (GRCm39) V884A probably benign Het
Stmnd1 C A 13: 46,438,962 (GRCm39) Q65K possibly damaging Het
Tgm5 C T 2: 120,905,583 (GRCm39) probably null Het
Tubb1 T C 2: 174,299,577 (GRCm39) S420P probably benign Het
Tvp23b T C 11: 62,770,430 (GRCm39) probably benign Het
Xirp2 C T 2: 67,347,464 (GRCm39) A3235V possibly damaging Het
Zc3h15 T C 2: 83,488,427 (GRCm39) S122P possibly damaging Het
Other mutations in Kcna2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00164:Kcna2 APN 3 107,011,946 (GRCm39) missense probably damaging 1.00
IGL00711:Kcna2 APN 3 107,012,069 (GRCm39) missense probably benign
IGL02380:Kcna2 APN 3 107,012,274 (GRCm39) missense probably benign 0.00
grim UTSW 3 107,012,343 (GRCm39) missense probably damaging 1.00
IGL03097:Kcna2 UTSW 3 107,012,715 (GRCm39) missense probably benign 0.02
R0200:Kcna2 UTSW 3 107,012,476 (GRCm39) missense probably benign
R0463:Kcna2 UTSW 3 107,012,476 (GRCm39) missense probably benign
R0472:Kcna2 UTSW 3 107,012,832 (GRCm39) missense probably benign
R0662:Kcna2 UTSW 3 107,012,717 (GRCm39) missense probably benign
R0746:Kcna2 UTSW 3 107,012,484 (GRCm39) missense probably benign
R1838:Kcna2 UTSW 3 107,011,828 (GRCm39) missense probably benign
R1847:Kcna2 UTSW 3 107,012,429 (GRCm39) missense possibly damaging 0.54
R1912:Kcna2 UTSW 3 107,012,717 (GRCm39) missense probably benign
R1966:Kcna2 UTSW 3 107,011,946 (GRCm39) missense probably damaging 1.00
R1971:Kcna2 UTSW 3 107,012,140 (GRCm39) missense probably damaging 1.00
R2419:Kcna2 UTSW 3 107,011,469 (GRCm39) missense probably benign 0.21
R3796:Kcna2 UTSW 3 107,012,906 (GRCm39) missense probably benign 0.37
R3830:Kcna2 UTSW 3 107,012,112 (GRCm39) missense probably benign 0.04
R4273:Kcna2 UTSW 3 107,012,509 (GRCm39) missense probably benign 0.00
R4570:Kcna2 UTSW 3 107,012,111 (GRCm39) missense probably benign
R4662:Kcna2 UTSW 3 107,012,733 (GRCm39) missense probably benign
R4756:Kcna2 UTSW 3 107,012,733 (GRCm39) missense probably benign
R5054:Kcna2 UTSW 3 107,011,656 (GRCm39) missense probably damaging 1.00
R5069:Kcna2 UTSW 3 107,011,953 (GRCm39) missense probably damaging 1.00
R5070:Kcna2 UTSW 3 107,011,953 (GRCm39) missense probably damaging 1.00
R5126:Kcna2 UTSW 3 107,011,550 (GRCm39) missense probably damaging 1.00
R5146:Kcna2 UTSW 3 107,012,814 (GRCm39) missense probably benign 0.00
R5205:Kcna2 UTSW 3 107,004,462 (GRCm39) unclassified probably benign
R5472:Kcna2 UTSW 3 107,012,625 (GRCm39) missense possibly damaging 0.93
R6687:Kcna2 UTSW 3 107,012,343 (GRCm39) missense probably damaging 1.00
R6689:Kcna2 UTSW 3 107,012,343 (GRCm39) missense probably damaging 1.00
R7216:Kcna2 UTSW 3 107,012,109 (GRCm39) missense probably damaging 0.99
R7304:Kcna2 UTSW 3 107,012,066 (GRCm39) missense probably benign
R7538:Kcna2 UTSW 3 107,011,884 (GRCm39) missense probably benign 0.31
R7585:Kcna2 UTSW 3 107,012,658 (GRCm39) missense probably damaging 1.00
R7968:Kcna2 UTSW 3 107,012,460 (GRCm39) missense possibly damaging 0.79
R8241:Kcna2 UTSW 3 107,012,338 (GRCm39) missense probably damaging 1.00
R9223:Kcna2 UTSW 3 107,012,306 (GRCm39) missense possibly damaging 0.93
R9441:Kcna2 UTSW 3 107,012,268 (GRCm39) missense probably benign
R9449:Kcna2 UTSW 3 107,012,887 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- AGAGATTCCCAGTTCCCCAGCATC -3'
(R):5'- GCATCAGTCCTGTTGAGCTGTGAG -3'

Sequencing Primer
(F):5'- ATCCCGGATGCTTTCTGGTG -3'
(R):5'- AGTAGGCTTCAATCAGACATCAG -3'
Posted On 2013-04-11