Incidental Mutation 'R1847:Kcna2'
ID 207786
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 039872-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1847 (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 107012429 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 337 (I337V)
Ref Sequence ENSEMBL: ENSMUSP00000143798 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000038695] [ENSMUST00000196403] [ENSMUST00000197470]
AlphaFold P63141
Predicted Effect possibly damaging
Transcript: ENSMUST00000038695
AA Change: I337V

PolyPhen 2 Score 0.542 (Sensitivity: 0.88; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: I337V

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 possibly damaging
Transcript: ENSMUST00000196403
AA Change: I337V

PolyPhen 2 Score 0.542 (Sensitivity: 0.88; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: I337V

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 possibly damaging
Transcript: ENSMUST00000197470
AA Change: I337V

PolyPhen 2 Score 0.542 (Sensitivity: 0.88; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: I337V

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 0.2837 question?
Coding Region Coverage
  • 1x: 97.4%
  • 3x: 96.8%
  • 10x: 94.9%
  • 20x: 91.2%
Validation Efficiency 97% (68/70)
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: 62 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcc1 C A 16: 14,263,313 (GRCm39) R758S probably benign Het
Acnat1 A T 4: 49,447,716 (GRCm39) H288Q possibly damaging Het
Adamts1 T C 16: 85,599,114 (GRCm39) E162G possibly damaging Het
Akap11 A G 14: 78,751,101 (GRCm39) S429P probably benign Het
Alg14 T C 3: 121,155,415 (GRCm39) Y212H probably damaging Het
Cacna1g T C 11: 94,357,007 (GRCm39) T97A probably damaging Het
Ccdc112 T A 18: 46,420,821 (GRCm39) N310Y possibly damaging Het
Cenpl A T 1: 160,913,574 (GRCm39) Y328F probably damaging Het
Cep162 G A 9: 87,086,133 (GRCm39) H1064Y probably benign Het
Cnksr3 T A 10: 7,104,324 (GRCm39) E126D probably benign Het
Ctsh T A 9: 89,943,618 (GRCm39) M81K probably benign Het
D6Wsu163e A G 6: 126,932,112 (GRCm39) T284A probably damaging Het
Dab1 C T 4: 104,588,948 (GRCm39) A524V probably benign Het
Dnaaf1 T A 8: 120,309,616 (GRCm39) M196K probably benign Het
Dnah9 C A 11: 65,725,212 (GRCm39) G4314C probably damaging Het
Dph1 A G 11: 75,070,557 (GRCm39) Y361H probably damaging Het
Ect2 C T 3: 27,204,221 (GRCm39) M29I probably benign Het
Eif3h T C 15: 51,661,066 (GRCm39) Y167C probably damaging Het
Epc2 C T 2: 49,422,101 (GRCm39) R332C probably damaging Het
Fras1 C A 5: 96,897,282 (GRCm39) probably null Het
Gfm2 A G 13: 97,299,442 (GRCm39) I386V probably benign Het
Gpd1l G A 9: 114,743,399 (GRCm39) T167I probably damaging Het
Hsph1 T A 5: 149,546,950 (GRCm39) K567* probably null Het
Igfn1 T G 1: 135,897,126 (GRCm39) S1147R probably benign Het
Itgb4 T C 11: 115,874,590 (GRCm39) V406A probably benign Het
Kcnab1 T C 3: 65,209,615 (GRCm39) probably null Het
Kri1 G T 9: 21,191,788 (GRCm39) probably benign Het
Lrguk T A 6: 34,110,322 (GRCm39) I801K possibly damaging Het
Magi2 A T 5: 20,807,458 (GRCm39) N871Y probably damaging Het
Map3k10 G T 7: 27,360,981 (GRCm39) probably null Het
Mrps25 T C 6: 92,155,721 (GRCm39) T71A probably damaging Het
Myo15a G A 11: 60,390,321 (GRCm39) W945* probably null Het
Ncan A T 8: 70,555,104 (GRCm39) I1021N probably damaging Het
Ncf4 C A 15: 78,134,582 (GRCm39) S11R probably benign Het
Neb A C 2: 52,086,307 (GRCm39) S5255R possibly damaging Het
Nop2 TGATGAAGATGAAGATGA TGATGAAGATGA 6: 125,114,042 (GRCm39) probably benign Het
Or4c102 G A 2: 88,422,516 (GRCm39) A123T probably damaging Het
Or5ak22 A T 2: 85,230,785 (GRCm39) F31I probably damaging Het
Or5d16 T C 2: 87,773,065 (GRCm39) probably null Het
Pacs1 T C 19: 5,203,742 (GRCm39) I328V probably damaging Het
Pafah2 GCCCC GCCCCC 4: 134,152,852 (GRCm39) probably null Het
Pan2 A G 10: 128,140,247 (GRCm39) H56R possibly damaging Het
Pigo G A 4: 43,024,710 (GRCm39) R124* probably null Het
Ppfia2 A G 10: 106,763,571 (GRCm39) D1188G probably benign Het
Ppp1r16b A G 2: 158,603,355 (GRCm39) N327D probably damaging Het
Psd3 A G 8: 68,172,656 (GRCm39) C223R possibly damaging Het
Rad50 A G 11: 53,592,934 (GRCm39) V72A possibly damaging Het
Rcor3 T A 1: 191,785,133 (GRCm39) D445V possibly damaging Het
Rundc1 T A 11: 101,324,507 (GRCm39) H404Q probably benign Het
Ryr1 T C 7: 28,779,236 (GRCm39) K2083E probably benign Het
Scd3 C A 19: 44,224,281 (GRCm39) H171Q probably damaging Het
Scrn2 T C 11: 96,923,021 (GRCm39) F155L probably benign Het
Serpina12 A T 12: 103,998,769 (GRCm39) L323Q probably damaging Het
Sptlc3 T A 2: 139,467,843 (GRCm39) M467K probably benign Het
Stard9 G T 2: 120,528,970 (GRCm39) R1742S possibly damaging Het
Thbd A T 2: 148,249,604 (GRCm39) L88* probably null Het
Tln2 G A 9: 67,269,969 (GRCm39) Q477* probably null Het
Tnn T A 1: 159,943,752 (GRCm39) E1020D possibly damaging Het
Trip12 A T 1: 84,726,990 (GRCm39) H3Q probably damaging Het
Vmn2r115 ATCTTCT ATCT 17: 23,578,962 (GRCm39) probably benign Het
Vmp1 G A 11: 86,534,413 (GRCm39) Q165* probably null Het
Zfp758 T A 17: 22,594,204 (GRCm39) M230K 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
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'- CTTACTTTATCACCCTGGGGAC -3'
(R):5'- GGCAATGGTTAACACACCTGC -3'

Sequencing Primer
(F):5'- CTGAGAAGCCAGAGGACGCC -3'
(R):5'- TGGTTAACACACCTGCAATTGC -3'
Posted On 2014-06-23