Incidental Mutation 'R0746:Kcna2'
ID 70121
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 038927-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0746 (G1)
Quality Score 225
Status Not validated
Chromosome 3
Chromosomal Location 107008462-107022321 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 107012484 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 355 (D355G)
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: D355G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: D355G

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: D355G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: D355G

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: D355G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: D355G

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: 99.3%
  • 3x: 98.8%
  • 10x: 97.5%
  • 20x: 95.3%
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: 43 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4921513D11Rik T C 17: 79,935,715 (GRCm39) probably benign Het
Acvr1 T C 2: 58,390,562 (GRCm39) M1V probably null Het
Adamts10 T A 17: 33,768,521 (GRCm39) C866* probably null Het
Adgrv1 G A 13: 81,718,675 (GRCm39) P4S probably benign Het
Arhgef37 A G 18: 61,651,064 (GRCm39) probably null Het
Arid4b A G 13: 14,317,623 (GRCm39) T169A probably benign Het
Bltp3b T A 10: 89,641,316 (GRCm39) I829K probably benign Het
Cabp7 A T 11: 4,688,900 (GRCm39) I190N probably damaging Het
Capn13 A C 17: 73,658,503 (GRCm39) D188E probably benign Het
Ces1d A G 8: 93,916,096 (GRCm39) F177S probably damaging Het
Col1a2 G A 6: 4,518,822 (GRCm39) probably benign Het
Csmd2 T A 4: 128,308,090 (GRCm39) C1283S probably damaging Het
Cul1 T C 6: 47,495,222 (GRCm39) probably null Het
F7 T G 8: 13,084,740 (GRCm39) S255R probably benign Het
Fanci T A 7: 79,089,429 (GRCm39) I955N probably damaging Het
Focad C A 4: 88,315,451 (GRCm39) D1536E possibly damaging Het
Fus A G 7: 127,584,596 (GRCm39) probably benign Het
Gpr146 C T 5: 139,378,977 (GRCm39) R260W probably damaging Het
Grid1 T C 14: 34,544,647 (GRCm39) F73L possibly damaging Het
Ilf2 T A 3: 90,390,114 (GRCm39) V142D probably damaging Het
Mgat4c T C 10: 102,224,548 (GRCm39) F254S probably damaging Het
Mrps10 A C 17: 47,683,564 (GRCm39) R139S probably benign Het
Myh2 A G 11: 67,064,257 (GRCm39) T71A probably benign Het
Myo1d A C 11: 80,477,705 (GRCm39) Y893D possibly damaging Het
Ncapd2 T C 6: 125,151,227 (GRCm39) E760G possibly damaging Het
Or10ab5 A T 7: 108,245,248 (GRCm39) D178E probably damaging Het
Or11h6 T A 14: 50,880,232 (GRCm39) probably null Het
Pkhd1 T A 1: 20,268,331 (GRCm39) D3349V probably damaging Het
Ptprn2 A C 12: 116,864,637 (GRCm39) M551L probably benign Het
Ptprq A G 10: 107,353,692 (GRCm39) Y2275H probably damaging Het
Rfx7 A G 9: 72,526,388 (GRCm39) T1193A probably benign Het
Rtl1 T C 12: 109,559,394 (GRCm39) D815G probably damaging Het
Scn1a T A 2: 66,181,470 (GRCm39) T18S probably benign Het
Septin5 T C 16: 18,441,975 (GRCm39) H277R probably damaging Het
Sh3bp5l A G 11: 58,237,173 (GRCm39) S377G probably benign Het
Snx2 T A 18: 53,330,961 (GRCm39) I142K possibly damaging Het
Spata31d1a C A 13: 59,850,077 (GRCm39) D684Y possibly damaging Het
Taar6 C A 10: 23,861,258 (GRCm39) S96I probably benign Het
Thsd7b C A 1: 130,116,268 (GRCm39) H1340Q probably benign Het
Tmem115 C T 9: 107,415,198 (GRCm39) T329M probably benign Het
Tmem50b C T 16: 91,378,578 (GRCm39) probably null Het
Wdr64 A T 1: 175,620,539 (GRCm39) D316V possibly damaging Het
Yars1 C A 4: 129,091,079 (GRCm39) S162R probably 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
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
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'- GGTGACCTTCCACACCTATTCCAAC -3'
(R):5'- ACACTATGACAGGGACTGGTAAGGC -3'

Sequencing Primer
(F):5'- AGAGACTCTCTGCATCATCTGG -3'
(R):5'- GGCAATGGTTAACACACCTG -3'
Posted On 2013-09-30