Incidental Mutation 'R2419:Kcna2'
ID 249127
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 040381-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R2419 (G1)
Quality Score 225
Status Validated
Chromosome 3
Chromosomal Location 107008462-107022321 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 107011469 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glycine to Arginine at position 17 (G17R)
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: G17R

PolyPhen 2 Score 0.210 (Sensitivity: 0.92; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: G17R

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: G17R

PolyPhen 2 Score 0.210 (Sensitivity: 0.92; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: G17R

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: G17R

PolyPhen 2 Score 0.210 (Sensitivity: 0.92; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: G17R

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 0.0741 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 94.9%
Validation Efficiency 98% (57/58)
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: 59 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca2 G A 2: 25,328,001 (GRCm39) A768T probably benign Het
Acyp2 T C 11: 30,582,316 (GRCm39) Y33C probably benign Het
Ampd3 A G 7: 110,367,576 (GRCm39) probably benign Het
Arap3 T C 18: 38,122,997 (GRCm39) D501G probably damaging Het
Arl4d A T 11: 101,557,714 (GRCm39) Q80L probably damaging Het
Bcorl1 A G X: 47,459,418 (GRCm39) T425A probably damaging Het
Ccdc38 T A 10: 93,384,837 (GRCm39) V35D probably benign Het
Cd6 G A 19: 10,770,216 (GRCm39) P492S probably damaging Het
Cdh20 G A 1: 104,902,740 (GRCm39) S477N possibly damaging Het
Cnmd G A 14: 79,875,488 (GRCm39) P311S probably damaging Het
Cnot8 G A 11: 58,006,136 (GRCm39) G222R probably damaging Het
Dnah9 A T 11: 65,986,241 (GRCm39) L1131* probably null Het
Dscc1 G A 15: 54,946,820 (GRCm39) R302* probably null Het
Dusp18 T C 11: 3,847,018 (GRCm39) S3P possibly damaging Het
Eml2 A G 7: 18,910,620 (GRCm39) probably benign Het
Foxb2 G C 19: 16,850,325 (GRCm39) A227G probably damaging Het
Hey1 A G 3: 8,731,003 (GRCm39) probably null Het
Itk A G 11: 46,229,044 (GRCm39) F379L probably damaging Het
Kif7 C A 7: 79,348,441 (GRCm39) R1300L probably benign Het
Klkb1 A T 8: 45,742,149 (GRCm39) D43E possibly damaging Het
Leng9 A G 7: 4,151,626 (GRCm39) V350A probably benign Het
Lmbr1l A C 15: 98,805,418 (GRCm39) F361C possibly damaging Het
Lrat A G 3: 82,810,992 (GRCm39) S10P probably damaging Het
Lrrk2 C A 15: 91,681,729 (GRCm39) probably benign Het
Mcur1 C T 13: 43,703,013 (GRCm39) V241M possibly damaging Het
Met T C 6: 17,535,829 (GRCm39) probably benign Het
Mical3 A G 6: 120,936,884 (GRCm39) V342A probably benign Het
Nup210 G A 6: 90,994,538 (GRCm39) probably benign Het
Or1i2 T A 10: 78,448,221 (GRCm39) I85F probably benign Het
Or1j12 T A 2: 36,343,338 (GRCm39) V247E probably damaging Het
Or4c107 A G 2: 88,789,380 (GRCm39) N190S probably benign Het
Pcdhac1 T C 18: 37,224,381 (GRCm39) L398P probably benign Het
Phc3 T C 3: 31,005,027 (GRCm39) M189V probably damaging Het
Plcb1 A G 2: 135,104,020 (GRCm39) probably benign Het
Plcxd3 G T 15: 4,604,245 (GRCm39) K284N probably benign Het
Plxnb2 A G 15: 89,045,272 (GRCm39) V1058A possibly damaging Het
Rbbp5 T C 1: 132,421,564 (GRCm39) I88T possibly damaging Het
Rfpl4b T C 10: 38,697,368 (GRCm39) R78G probably benign Het
Rsf1 CG CGACGGCGGGG 7: 97,229,115 (GRCm39) probably benign Het
Samt2 A T X: 153,358,223 (GRCm39) probably null Het
Sdad1 T C 5: 92,453,677 (GRCm39) H37R possibly damaging Het
Setd2 T A 9: 110,378,065 (GRCm39) F627I possibly damaging Het
Ski A G 4: 155,245,350 (GRCm39) S293P probably benign Het
Slc27a1 A G 8: 72,032,560 (GRCm39) E191G possibly damaging Het
Snx18 T C 13: 113,753,755 (GRCm39) M393V possibly damaging Het
Spata31g1 A G 4: 42,974,146 (GRCm39) T1160A possibly damaging Het
Tacc1 A G 8: 25,672,829 (GRCm39) V42A possibly damaging Het
Tbc1d8 A G 1: 39,415,983 (GRCm39) F897L probably damaging Het
Tenm3 C T 8: 48,729,693 (GRCm39) D1438N possibly damaging Het
Tmem62 G A 2: 120,837,586 (GRCm39) G501E probably damaging Het
Tmem94 A G 11: 115,687,641 (GRCm39) K1167E probably damaging Het
Trap1 A G 16: 3,886,194 (GRCm39) S88P probably benign Het
Ugt2b38 T C 5: 87,571,591 (GRCm39) D147G probably damaging Het
Vmn1r168 A T 7: 23,240,824 (GRCm39) N227I probably benign Het
Vmn1r203 T A 13: 22,709,004 (GRCm39) S262T possibly damaging Het
Vmn1r204 T G 13: 22,740,420 (GRCm39) L17R probably damaging Het
Zcchc14 T A 8: 122,330,675 (GRCm39) Q896L probably damaging Het
Zfp619 A G 7: 39,185,307 (GRCm39) K446E possibly damaging Het
Zpr1 T C 9: 46,187,490 (GRCm39) 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
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'- CCAACTCACAAAGGGCTCTG -3'
(R):5'- ATCAAAGCTAGGGCGGTTGC -3'

Sequencing Primer
(F):5'- ACAAAGGGCTCTGGGGCTTTC -3'
(R):5'- AAGTACTCATTTCGGAGGGGATC -3'
Posted On 2014-11-12