Incidental Mutation 'R4662:Kcna2'
ID 352919
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 042011-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4662 (G1)
Quality Score 225
Status Not validated
Chromosome 3
Chromosomal Location 107008462-107022321 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 107012733 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Asparagine at position 438 (I438N)
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: I438N

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: I438N

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: I438N

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: I438N

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: I438N

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: I438N

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
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 95.1%
Validation Efficiency
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: 64 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930590J08Rik A T 6: 91,891,939 (GRCm39) Q67L probably benign Het
Adam34l T A 8: 44,080,116 (GRCm39) Y36F probably benign Het
Adrb1 A G 19: 56,711,206 (GRCm39) T135A probably damaging Het
Ark2n T A 18: 77,762,186 (GRCm39) Q42L probably benign Het
Asxl2 G T 12: 3,477,193 (GRCm39) W13L probably damaging Het
Atp4a G A 7: 30,419,650 (GRCm39) R671Q probably benign Het
Brsk1 T C 7: 4,710,298 (GRCm39) S436P possibly damaging Het
Calb2 A G 8: 110,894,709 (GRCm39) F21L probably benign Het
Camk2a T C 18: 61,074,411 (GRCm39) Y39H probably damaging Het
Cavin2 T C 1: 51,340,510 (GRCm39) S396P probably benign Het
Cfdp1 A G 8: 112,557,577 (GRCm39) F188S probably benign Het
Chek2 T A 5: 111,014,908 (GRCm39) V459D probably damaging Het
Cldn8 G A 16: 88,359,296 (GRCm39) H210Y probably benign Het
Cobl A G 11: 12,203,672 (GRCm39) V1003A probably benign Het
Ctsll3 A G 13: 60,947,416 (GRCm39) F257L possibly damaging Het
Dnajc13 A C 9: 104,084,957 (GRCm39) F819V probably damaging Het
Dram1 C A 10: 88,161,246 (GRCm39) V208L probably damaging Het
Dynlt1b A G 17: 6,699,279 (GRCm39) T10A probably benign Het
Eml6 A T 11: 29,727,390 (GRCm39) V1244E probably damaging Het
Ethe1 G A 7: 24,293,405 (GRCm39) S17N probably benign Het
Foxi1 T C 11: 34,157,578 (GRCm39) D149G probably damaging Het
Fzd9 T C 5: 135,278,475 (GRCm39) E470G probably damaging Het
Ggnbp2 A G 11: 84,753,072 (GRCm39) F56L probably damaging Het
Hao1 G A 2: 134,364,947 (GRCm39) R227* probably null Het
Hyal1 G A 9: 107,456,420 (GRCm39) R369H probably damaging Het
Jam2 G A 16: 84,609,840 (GRCm39) V151M probably damaging Het
Lrp1 A T 10: 127,388,054 (GRCm39) C3331* probably null Het
Mcm9 T C 10: 53,424,623 (GRCm39) I656V probably benign Het
Mroh9 C T 1: 162,883,162 (GRCm39) C439Y probably damaging Het
N4bp2l2 T C 5: 150,574,160 (GRCm39) D85G probably damaging Het
Nr1h2 A G 7: 44,199,855 (GRCm39) Y355H probably damaging Het
Nr5a2 T C 1: 136,868,167 (GRCm39) I322V probably benign Het
Nup153 A C 13: 46,840,750 (GRCm39) L273V possibly damaging Het
Obscn A G 11: 58,890,422 (GRCm39) L7370P unknown Het
Or1a1 T C 11: 74,086,542 (GRCm39) I71T probably damaging Het
Or4b1 T A 2: 89,980,222 (GRCm39) I43F probably damaging Het
Or5k15 A G 16: 58,710,287 (GRCm39) C99R probably damaging Het
Prkdc G A 16: 15,551,916 (GRCm39) D2041N probably damaging Het
Ptdss1 A G 13: 67,081,675 (GRCm39) D35G possibly damaging Het
Ptprs G T 17: 56,724,666 (GRCm39) T1118K probably damaging Het
Pygb C T 2: 150,657,036 (GRCm39) T329I probably benign Het
Rhoh T A 5: 66,050,157 (GRCm39) D142E probably benign Het
Saraf C A 8: 34,635,616 (GRCm39) A306E probably damaging Het
Scn1a T C 2: 66,181,332 (GRCm39) I64V probably benign Het
Sec16a A G 2: 26,320,582 (GRCm39) W1333R probably damaging Het
Shroom1 A T 11: 53,357,289 (GRCm39) T651S possibly damaging Het
Skint3 C A 4: 112,134,863 (GRCm39) Y345* probably null Het
Slc1a7 T A 4: 107,864,751 (GRCm39) N263K probably damaging Het
Sptbn2 C T 19: 4,789,267 (GRCm39) R1236C probably damaging Het
Tbx21 T C 11: 96,992,393 (GRCm39) N226S probably benign Het
Thada A G 17: 84,743,078 (GRCm39) L782P probably damaging Het
Tle1 T G 4: 72,055,335 (GRCm39) I446L possibly damaging Het
Trgv1 T A 13: 19,524,503 (GRCm39) L76I possibly damaging Het
Triobp A G 15: 78,877,469 (GRCm39) D1621G probably damaging Het
Trpm2 G C 10: 77,773,972 (GRCm39) A481G probably benign Het
Unc80 A T 1: 66,685,595 (GRCm39) M2240L probably benign Het
Usp9x A G X: 12,989,747 (GRCm39) R776G possibly damaging Homo
Vangl1 T C 3: 102,074,238 (GRCm39) T290A probably benign Het
Vmn1r233 T A 17: 21,214,393 (GRCm39) I186F probably benign Het
Vmn2r102 G A 17: 19,901,424 (GRCm39) C517Y probably damaging Het
Vrk2 G A 11: 26,421,611 (GRCm39) T449M possibly damaging Het
Zfp518a A G 19: 40,900,304 (GRCm39) S78G probably benign Het
Zscan25 T C 5: 145,223,120 (GRCm39) S131P unknown Het
Zscan29 G A 2: 120,997,096 (GRCm39) T140I 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
R4570:Kcna2 UTSW 3 107,012,111 (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'- TGGAGACATGGTTCCAACTACC -3'
(R):5'- TTGAGCTGTGAGTACATTAGTAGGC -3'

Sequencing Primer
(F):5'- CAGTCCCTGTCATAGTGT -3'
(R):5'- AGTAGGCTTCAATCAGACATCAG -3'
Posted On 2015-10-08