Incidental Mutation 'R1971:Kcna2'
ID220813
Institutional Source Beutler Lab
Gene Symbol Kcna2
Ensembl Gene ENSMUSG00000040724
Gene Namepotassium voltage-gated channel, shaker-related subfamily, member 2
SynonymsMk-2, Akr6a4, Kca1-2, Kv1.2
MMRRC Submission 039984-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R1971 (G1)
Quality Score225
Status Validated
Chromosome3
Chromosomal Location107101146-107115005 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to T at 107104824 bp
ZygosityHeterozygous
Amino Acid Change Arginine to Serine at position 240 (R240S)
Ref Sequence ENSEMBL: ENSMUSP00000143798 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000038695] [ENSMUST00000196403] [ENSMUST00000197470]
Predicted Effect probably damaging
Transcript: ENSMUST00000038695
AA Change: R240S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: R240S

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: R240S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: R240S

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: R240S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: R240S

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 0.0244 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.3%
Validation Efficiency 99% (115/116)
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: 113 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700001O22Rik A T 2: 30,796,554 I242N probably benign Het
2510009E07Rik G T 16: 21,653,298 Y217* probably null Het
4931429L15Rik C T 9: 46,308,788 V149M probably benign Het
9030624J02Rik A C 7: 118,775,334 R352S probably damaging Het
9530053A07Rik C A 7: 28,131,512 A50E possibly damaging Het
Abcg8 G T 17: 84,695,159 probably benign Het
Acox1 A G 11: 116,198,261 F77S probably benign Het
Adgrb3 G T 1: 25,547,444 H389Q probably benign Het
Ak7 A G 12: 105,726,245 N186S probably damaging Het
Apobr A G 7: 126,586,225 T303A probably benign Het
Arnt C T 3: 95,448,393 S16L possibly damaging Het
Bcl9l T C 9: 44,508,699 probably null Het
Bco2 T C 9: 50,545,984 D86G probably damaging Het
Bmpr1b T A 3: 141,857,572 I204F probably damaging Het
Bpifb5 C A 2: 154,230,344 Q324K probably benign Het
Cacna2d2 G A 9: 107,512,006 V223I probably damaging Het
Capn3 A G 2: 120,480,747 D105G possibly damaging Het
Ccdc40 G T 11: 119,263,075 probably null Het
Ccdc83 T A 7: 90,244,154 S132C probably damaging Het
Ckap2l A G 2: 129,285,422 S279P possibly damaging Het
Cldn12 C A 5: 5,508,137 A97S probably benign Het
Clec2l T G 6: 38,663,374 S47A probably benign Het
Csnk1d C A 11: 120,972,448 R222M possibly damaging Het
Ctnna1 T A 18: 35,154,527 D96E probably benign Het
D630045J12Rik T C 6: 38,168,143 D1316G probably damaging Het
D730048I06Rik T A 9: 35,789,013 H92L probably benign Het
Ddx4 C T 13: 112,600,013 V608I probably damaging Het
Dmtf1 T C 5: 9,148,989 E48G probably benign Het
Dnah17 G C 11: 118,104,535 Q996E probably benign Het
Dnah9 G C 11: 65,848,371 N4180K probably damaging Het
Dpf3 T A 12: 83,325,035 probably null Het
Drd2 T C 9: 49,407,059 F434L probably damaging Het
En1 A G 1: 120,607,013 T344A unknown Het
Eri3 A G 4: 117,564,767 T81A probably benign Het
Fam20a T C 11: 109,685,411 Y174C probably damaging Het
Fam234a G C 17: 26,216,655 probably null Het
Fam76a A T 4: 132,903,983 I217N probably damaging Het
Fancm T A 12: 65,101,692 S694T probably benign Het
Foxo3 A G 10: 42,197,262 S420P probably benign Het
Foxp4 C T 17: 47,875,871 R378Q unknown Het
Gm136 T G 4: 34,755,986 D9A probably benign Het
Gstt2 G T 10: 75,832,665 T116N probably benign Het
Hs3st6 A G 17: 24,753,293 T70A probably benign Het
Hspa14 A G 2: 3,489,767 V461A possibly damaging Het
Itih5 A T 2: 10,238,568 D372V probably damaging Het
Kctd18 T C 1: 57,967,620 I24V probably benign Het
Lap3 T C 5: 45,506,166 probably benign Het
Lcp1 T C 14: 75,200,506 S119P probably damaging Het
Lig3 G C 11: 82,795,718 D642H probably benign Het
Lpin1 A T 12: 16,580,723 L58H probably damaging Het
Map4k5 G T 12: 69,826,328 P468Q possibly damaging Het
Med31 G A 11: 72,215,418 probably benign Het
Mki67 A T 7: 135,713,959 probably null Het
Mrc1 G A 2: 14,244,292 probably null Het
Msh3 A G 13: 92,223,276 I16T probably damaging Het
Msh3 T A 13: 92,249,820 probably benign Het
Mst1r A T 9: 107,913,212 I675F probably benign Het
Myb A C 10: 21,140,656 S652A probably benign Het
Myh2 G T 11: 67,189,178 S1099I possibly damaging Het
Myl6b A G 10: 128,494,643 V181A probably damaging Het
Myt1l A T 12: 29,827,092 K247N unknown Het
Nanos2 G T 7: 18,987,704 V34L probably benign Het
Nav1 T C 1: 135,532,353 T411A probably benign Het
Nedd9 T A 13: 41,338,948 I23F probably damaging Het
Nes G A 3: 87,978,327 V1254I possibly damaging Het
Nol6 A G 4: 41,119,542 F588S probably damaging Het
Numa1 C T 7: 102,009,322 A1605V probably damaging Het
Ofd1 T C X: 166,427,214 Y205C probably benign Het
Olfr1223 A T 2: 89,144,734 C96* probably null Het
Olfr390 T A 11: 73,787,790 M284K probably damaging Het
Olfr630 C T 7: 103,755,320 W88* probably null Het
Olfr633 A T 7: 103,946,943 I126F probably damaging Het
Olfr693 T A 7: 106,677,670 N272I probably damaging Het
Olr1 T C 6: 129,493,535 E223G probably benign Het
Pclo A G 5: 14,713,473 T3987A unknown Het
Pik3cg A T 12: 32,192,153 V986D probably damaging Het
Pitpnm1 T A 19: 4,112,450 D1093E probably damaging Het
Ppp1r12b T C 1: 134,865,913 D571G probably benign Het
Rfx1 A G 8: 84,095,497 E875G probably damaging Het
Rnf145 T A 11: 44,548,815 I146N probably damaging Het
Rttn G A 18: 89,090,433 R1587H probably benign Het
Safb A G 17: 56,605,821 H883R probably benign Het
Sdhb A G 4: 140,972,949 D120G possibly damaging Het
Serpine3 A G 14: 62,665,084 N48S probably damaging Het
Sgms1 T A 19: 32,159,957 I70L probably benign Het
Slc1a7 G T 4: 107,968,585 D14Y probably benign Het
Smtnl2 C T 11: 72,411,357 A93T probably benign Het
Srpr T C 9: 35,213,538 probably null Het
Taf6l A G 19: 8,775,502 probably null Het
Tbc1d10b A T 7: 127,207,864 V167E probably benign Het
Tbc1d9 G A 8: 83,249,510 R566H probably damaging Het
Tenm3 A G 8: 48,236,313 Y2080H probably damaging Het
Tex14 A G 11: 87,511,605 N506S probably damaging Het
Thada G T 17: 84,310,042 P1349T probably damaging Het
Tjp1 G T 7: 65,324,078 T476K probably damaging Het
Tlr11 A T 14: 50,361,234 T226S probably benign Het
Tmem131 G A 1: 36,804,599 Q1394* probably null Het
Tmem161a C T 8: 70,176,909 R58W probably damaging Het
Tmem219 T C 7: 126,897,250 S13G probably benign Het
Trp53bp1 T C 2: 121,205,036 Y47C probably damaging Het
Ttn T A 2: 76,901,578 probably benign Het
Ush1g A G 11: 115,318,454 S305P probably damaging Het
Usp37 A T 1: 74,439,968 Y948* probably null Het
Vav1 A T 17: 57,327,697 Y805F probably damaging Het
Vmn1r59 A T 7: 5,454,039 Y241N probably damaging Het
Vmn2r2 T A 3: 64,126,700 Y467F probably damaging Het
Vps54 C A 11: 21,292,051 L389I probably damaging Het
Vwa8 G T 14: 78,925,254 probably benign Het
Wdr19 G T 5: 65,241,160 probably benign Het
Wnt2b A T 3: 104,954,617 probably benign Het
Xirp2 A G 2: 67,511,695 R1427G possibly damaging Het
Ylpm1 T C 12: 85,040,786 S1115P probably damaging Het
Zfp946 T A 17: 22,455,425 C387S probably damaging Het
Other mutations in Kcna2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00164:Kcna2 APN 3 107104630 missense probably damaging 1.00
IGL00711:Kcna2 APN 3 107104753 missense probably benign
IGL02380:Kcna2 APN 3 107104958 missense probably benign 0.00
grim UTSW 3 107105027 missense probably damaging 1.00
IGL03097:Kcna2 UTSW 3 107105399 missense probably benign 0.02
R0117:Kcna2 UTSW 3 107105354 missense probably damaging 1.00
R0200:Kcna2 UTSW 3 107105160 missense probably benign
R0463:Kcna2 UTSW 3 107105160 missense probably benign
R0472:Kcna2 UTSW 3 107105516 missense probably benign
R0662:Kcna2 UTSW 3 107105401 missense probably benign
R0746:Kcna2 UTSW 3 107105168 missense probably benign
R1838:Kcna2 UTSW 3 107104512 missense probably benign
R1847:Kcna2 UTSW 3 107105113 missense possibly damaging 0.54
R1912:Kcna2 UTSW 3 107105401 missense probably benign
R1966:Kcna2 UTSW 3 107104630 missense probably damaging 1.00
R2419:Kcna2 UTSW 3 107104153 missense probably benign 0.21
R3796:Kcna2 UTSW 3 107105590 missense probably benign 0.37
R3830:Kcna2 UTSW 3 107104796 missense probably benign 0.04
R4273:Kcna2 UTSW 3 107105193 missense probably benign 0.00
R4570:Kcna2 UTSW 3 107104795 missense probably benign
R4662:Kcna2 UTSW 3 107105417 missense probably benign
R4756:Kcna2 UTSW 3 107105417 missense probably benign
R5054:Kcna2 UTSW 3 107104340 missense probably damaging 1.00
R5069:Kcna2 UTSW 3 107104637 missense probably damaging 1.00
R5070:Kcna2 UTSW 3 107104637 missense probably damaging 1.00
R5126:Kcna2 UTSW 3 107104234 missense probably damaging 1.00
R5146:Kcna2 UTSW 3 107105498 missense probably benign 0.00
R5205:Kcna2 UTSW 3 107097146 unclassified probably benign
R5472:Kcna2 UTSW 3 107105309 missense possibly damaging 0.93
R6687:Kcna2 UTSW 3 107105027 missense probably damaging 1.00
R6689:Kcna2 UTSW 3 107105027 missense probably damaging 1.00
R7216:Kcna2 UTSW 3 107104793 missense probably damaging 0.99
R7304:Kcna2 UTSW 3 107104750 missense probably benign
Predicted Primers PCR Primer
(F):5'- TTCTGTCTGGAAACCTTGCC -3'
(R):5'- AGACCTTTGGAGTGTCTGGAC -3'

Sequencing Primer
(F):5'- CCATCTTCCGGGATGAGAATG -3'
(R):5'- GAGTGTCTGGACAACTTGAAAATCC -3'
Posted On2014-08-25