Incidental Mutation 'R4570:Kcna2'
ID 342063
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 041794-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4570 (G1)
Quality Score 225
Status Validated
Chromosome 3
Chromosomal Location 107008462-107022321 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 107012111 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 231 (I231V)
Ref Sequence ENSEMBL: ENSMUSP00000143798 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000038695] [ENSMUST00000196403] [ENSMUST00000197470]
AlphaFold P63141
Predicted Effect probably benign
Transcript: ENSMUST00000038695
AA Change: I231V

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: I231V

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 benign
Transcript: ENSMUST00000196403
AA Change: I231V

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: I231V

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 benign
Transcript: ENSMUST00000197470
AA Change: I231V

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: I231V

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 0.0897 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 94.9%
Validation Efficiency 99% (78/79)
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: 71 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca7 A G 10: 79,842,528 (GRCm39) D1154G probably damaging Het
Acsl5 T A 19: 55,280,206 (GRCm39) I493N probably damaging Het
Adgrf5 T A 17: 43,756,006 (GRCm39) S450T probably benign Het
Ak2 T C 4: 128,895,960 (GRCm39) V79A probably damaging Het
Alkbh2 C T 5: 114,262,287 (GRCm39) E148K probably damaging Het
Arfgef2 C A 2: 166,698,458 (GRCm39) Q643K probably damaging Het
Asap3 A G 4: 135,967,496 (GRCm39) D605G probably damaging Het
Ccr5 C T 9: 123,924,912 (GRCm39) Q172* probably null Het
Cpxm2 T C 7: 131,745,435 (GRCm39) D130G probably benign Het
Cspg4b T A 13: 113,454,725 (GRCm39) V257D probably damaging Het
Cxcl12 T C 6: 117,145,633 (GRCm39) V6A probably benign Het
Cyp19a1 G A 9: 54,100,607 (GRCm39) P27S probably benign Het
Dmxl1 T C 18: 49,985,427 (GRCm39) Y225H probably damaging Het
Dzip1l A T 9: 99,529,221 (GRCm39) K317* probably null Het
Edil3 A G 13: 89,280,016 (GRCm39) probably benign Het
Enpep A T 3: 129,075,197 (GRCm39) I707K possibly damaging Het
Fcrlb A G 1: 170,740,189 (GRCm39) probably null Het
Flt1 C T 5: 147,531,423 (GRCm39) A847T probably damaging Het
Fsd2 T C 7: 81,209,518 (GRCm39) D108G probably benign Het
Gemin6 C T 17: 80,535,498 (GRCm39) R153* probably null Het
Gldc T A 19: 30,151,839 (GRCm39) M112L probably benign Het
Gm10267 C T 18: 44,289,492 (GRCm39) M79I probably benign Het
Gm10803 A G 2: 93,394,597 (GRCm39) Y123C unknown Het
Gm28040 C A 1: 133,257,119 (GRCm39) probably benign Het
Gm8674 T A 13: 50,056,570 (GRCm39) noncoding transcript Het
Gprasp1 C T X: 134,703,592 (GRCm39) R1262C probably damaging Het
Hba-a2 T C 11: 32,247,200 (GRCm39) Y141H probably damaging Het
Hmbox1 T A 14: 65,061,111 (GRCm39) I388F possibly damaging Het
Hs6st1 G T 1: 36,142,628 (GRCm39) V188L possibly damaging Het
Ipmk T G 10: 71,208,569 (GRCm39) H118Q probably benign Het
Jhy A G 9: 40,822,389 (GRCm39) I583T probably benign Het
Kcnh7 T C 2: 62,667,439 (GRCm39) T367A possibly damaging Het
Kcp A T 6: 29,491,847 (GRCm39) C197* probably null Het
Klra2 C A 6: 131,220,900 (GRCm39) C54F probably damaging Het
Lcn9 T C 2: 25,713,591 (GRCm39) L39P probably benign Het
Lct T C 1: 128,227,641 (GRCm39) N1284S probably benign Het
Map6 T G 7: 98,985,763 (GRCm39) S556A possibly damaging Het
Mdn1 C A 4: 32,741,812 (GRCm39) T3861K probably damaging Het
Mrps12 A G 7: 28,439,388 (GRCm39) L109P probably damaging Het
Mucl3 T C 17: 35,948,883 (GRCm39) T239A possibly damaging Het
Mybphl G A 3: 108,272,347 (GRCm39) C12Y possibly damaging Het
Nek9 T C 12: 85,367,508 (GRCm39) K388E probably damaging Het
Nvl A G 1: 180,971,647 (GRCm39) V9A probably benign Het
Obscn T C 11: 58,897,654 (GRCm39) probably null Het
Or2h2 T C 17: 37,396,471 (GRCm39) I195M probably damaging Het
Pik3c3 T A 18: 30,423,603 (GRCm39) I233N possibly damaging Het
Pkhd1 T A 1: 20,451,747 (GRCm39) I2183F probably damaging Het
Ppara A G 15: 85,671,398 (GRCm39) I100V probably benign Het
Rem2 T C 14: 54,715,116 (GRCm39) S98P probably damaging Het
Rpl5-ps2 G T 2: 154,546,156 (GRCm39) noncoding transcript Het
Scmh1 T A 4: 120,385,495 (GRCm39) H623Q probably damaging Het
Scn9a A G 2: 66,313,902 (GRCm39) S1939P possibly damaging Het
Slc6a13 T C 6: 121,313,101 (GRCm39) probably null Het
Slc7a4 G A 16: 17,392,141 (GRCm39) T431I probably benign Het
Snupn A G 9: 56,885,346 (GRCm39) E217G probably benign Het
Spopl T A 2: 23,427,497 (GRCm39) K212* probably null Het
Strn T A 17: 78,984,801 (GRCm39) T281S possibly damaging Het
Supt3 T A 17: 45,352,116 (GRCm39) L265* probably null Het
Taf5l G A 8: 124,724,289 (GRCm39) T510M probably damaging Het
Tapbp C A 17: 34,145,427 (GRCm39) D415E probably damaging Het
Tarbp1 A T 8: 127,178,972 (GRCm39) D702E probably benign Het
Tfap2c C A 2: 172,399,247 (GRCm39) P473Q probably damaging Het
Tnc T C 4: 63,913,909 (GRCm39) N1301S probably damaging Het
Trim33 A G 3: 103,237,481 (GRCm39) Q179R probably damaging Het
Txnrd2 A G 16: 18,287,554 (GRCm39) N335S probably benign Het
Uggt1 T A 1: 36,189,154 (GRCm39) D1444V probably damaging Het
Ugt3a1 T C 15: 9,338,807 (GRCm39) L57P probably benign Het
Vmn2r6 A T 3: 64,467,068 (GRCm39) W144R probably benign Het
Vmn2r98 T A 17: 19,286,354 (GRCm39) M284K probably benign Het
Zfp558 A T 9: 18,367,799 (GRCm39) C330S possibly damaging Het
Zfp703 T C 8: 27,468,981 (GRCm39) V215A probably benign 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
R0117:Kcna2 UTSW 3 107,012,670 (GRCm39) missense probably damaging 1.00
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
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'- AGCCATTGTATCTGTGATGGTC -3'
(R):5'- CTTACCAACCGGATGACACG -3'

Sequencing Primer
(F):5'- GTGATGGTCATTCTGATCTCCATCG -3'
(R):5'- AATGGCCAGTGACATGGCC -3'
Posted On 2015-09-24