Incidental Mutation 'R5472:Kcna2'
ID 433856
Institutional Source Beutler Lab
Gene Symbol Kcna2
Ensembl Gene ENSMUSG00000040724
Gene Name potassium voltage-gated channel, shaker-related subfamily, member 2
Synonyms Mk-2, Akr6a4, Kca1-2, Kv1.2
MMRRC Submission 043033-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R5472 (G1)
Quality Score 225
Status Not validated
Chromosome 3
Chromosomal Location 107101146-107115005 bp(+) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) T to C at 107105309 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 402 (I402T)
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: I402T

PolyPhen 2 Score 0.925 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000041702
Gene: ENSMUSG00000040724
AA Change: I402T

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: I402T

PolyPhen 2 Score 0.925 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000142873
Gene: ENSMUSG00000040724
AA Change: I402T

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: I402T

PolyPhen 2 Score 0.925 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000143798
Gene: ENSMUSG00000040724
AA Change: I402T

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: 98.3%
  • 3x: 97.3%
  • 10x: 95.3%
  • 20x: 91.3%
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: 48 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Akap11 T C 14: 78,513,429 (GRCm38) N506S probably benign Het
BC067074 A G 13: 113,319,169 (GRCm38) D583G probably benign Het
Brinp3 A T 1: 146,901,459 (GRCm38) H548L possibly damaging Het
Cacna1c A G 6: 118,638,446 (GRCm38) V1328A possibly damaging Het
Carmil1 C T 13: 24,155,471 (GRCm38) V47I probably damaging Het
Cdk2ap2 C A 19: 4,098,048 (GRCm38) T76K probably benign Het
Col16a1 T C 4: 130,092,771 (GRCm38) probably benign Het
Cxcr4 C A 1: 128,589,625 (GRCm38) A100S probably damaging Het
Fancl G T 11: 26,469,677 (GRCm38) C305F probably damaging Het
Gcnt2 T C 13: 40,953,579 (GRCm38) V308A probably benign Het
Gm11733 A T 11: 117,484,496 (GRCm38) I24L unknown Het
Gm765 A T 6: 98,238,276 (GRCm38) C129S probably damaging Het
Gm973 A G 1: 59,628,287 (GRCm38) probably null Het
Gm996 T C 2: 25,579,702 (GRCm38) T66A probably benign Het
Heatr5b A T 17: 78,801,660 (GRCm38) F1057I probably damaging Het
Ifi213 A T 1: 173,567,272 (GRCm38) probably null Het
Ighv1-20 A T 12: 114,723,851 (GRCm38) V91E probably damaging Het
Inhba A G 13: 16,026,786 (GRCm38) E311G probably damaging Het
Irx3 G T 8: 91,799,480 (GRCm38) probably null Het
Jag1 C A 2: 137,084,995 (GRCm38) C948F probably damaging Het
Kcnh8 A T 17: 52,977,816 (GRCm38) Q938L possibly damaging Het
Lrsam1 ACC AC 2: 32,945,858 (GRCm38) probably null Het
Macf1 T C 4: 123,450,061 (GRCm38) T2123A probably benign Het
Mdh1 A T 11: 21,559,786 (GRCm38) N196K probably benign Het
Msh6 G A 17: 87,984,561 (GRCm38) R248Q possibly damaging Het
Odf2l G T 3: 145,146,866 (GRCm38) R457L probably benign Het
Olfr822 A T 10: 130,075,029 (GRCm38) L206F probably damaging Het
Pphln1 T C 15: 93,488,975 (GRCm38) V318A possibly damaging Het
Ppp1r12a C T 10: 108,240,112 (GRCm38) T267I probably damaging Het
Pramef20 T C 4: 144,377,157 (GRCm38) D133G probably benign Het
Prpf8 A C 11: 75,503,643 (GRCm38) K1801N possibly damaging Het
Raf1 A G 6: 115,626,706 (GRCm38) probably null Het
Rasal3 C A 17: 32,396,669 (GRCm38) L374F probably damaging Het
S1pr3 T A 13: 51,419,647 (GRCm38) V288D probably damaging Het
Setd7 G A 3: 51,521,465 (GRCm38) P315S probably benign Het
Slx4 C T 16: 3,991,540 (GRCm38) A364T probably benign Het
Sp7 G A 15: 102,359,314 (GRCm38) T19I probably benign Het
Tlr9 T A 9: 106,224,313 (GRCm38) C268S probably damaging Het
Tmem117 T A 15: 95,094,513 (GRCm38) D351E possibly damaging Het
Tmem45b T A 9: 31,428,044 (GRCm38) D211V possibly damaging Het
Tns3 A G 11: 8,451,092 (GRCm38) S1069P probably benign Het
Tsnax A G 8: 125,015,762 (GRCm38) I77V probably benign Het
Txndc5 G A 13: 38,513,125 (GRCm38) L79F possibly damaging Het
Ube2q1 A G 3: 89,777,241 (GRCm38) E14G probably benign Het
Vmn2r28 C T 7: 5,487,944 (GRCm38) probably null Het
Vwde A T 6: 13,193,118 (GRCm38) D407E probably benign Het
Wdr35 T A 12: 9,016,619 (GRCm38) M749K probably benign Het
Zfp109 A T 7: 24,228,621 (GRCm38) C462* probably null Het
Other mutations in Kcna2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00164:Kcna2 APN 3 107,104,630 (GRCm38) missense probably damaging 1.00
IGL00711:Kcna2 APN 3 107,104,753 (GRCm38) missense probably benign
IGL02380:Kcna2 APN 3 107,104,958 (GRCm38) missense probably benign 0.00
grim UTSW 3 107,105,027 (GRCm38) missense probably damaging 1.00
IGL03097:Kcna2 UTSW 3 107,105,399 (GRCm38) missense probably benign 0.02
R0117:Kcna2 UTSW 3 107,105,354 (GRCm38) missense probably damaging 1.00
R0200:Kcna2 UTSW 3 107,105,160 (GRCm38) missense probably benign
R0463:Kcna2 UTSW 3 107,105,160 (GRCm38) missense probably benign
R0472:Kcna2 UTSW 3 107,105,516 (GRCm38) missense probably benign
R0662:Kcna2 UTSW 3 107,105,401 (GRCm38) missense probably benign
R0746:Kcna2 UTSW 3 107,105,168 (GRCm38) missense probably benign
R1838:Kcna2 UTSW 3 107,104,512 (GRCm38) missense probably benign
R1847:Kcna2 UTSW 3 107,105,113 (GRCm38) missense possibly damaging 0.54
R1912:Kcna2 UTSW 3 107,105,401 (GRCm38) missense probably benign
R1966:Kcna2 UTSW 3 107,104,630 (GRCm38) missense probably damaging 1.00
R1971:Kcna2 UTSW 3 107,104,824 (GRCm38) missense probably damaging 1.00
R2419:Kcna2 UTSW 3 107,104,153 (GRCm38) missense probably benign 0.21
R3796:Kcna2 UTSW 3 107,105,590 (GRCm38) missense probably benign 0.37
R3830:Kcna2 UTSW 3 107,104,796 (GRCm38) missense probably benign 0.04
R4273:Kcna2 UTSW 3 107,105,193 (GRCm38) missense probably benign 0.00
R4570:Kcna2 UTSW 3 107,104,795 (GRCm38) missense probably benign
R4662:Kcna2 UTSW 3 107,105,417 (GRCm38) missense probably benign
R4756:Kcna2 UTSW 3 107,105,417 (GRCm38) missense probably benign
R5054:Kcna2 UTSW 3 107,104,340 (GRCm38) missense probably damaging 1.00
R5069:Kcna2 UTSW 3 107,104,637 (GRCm38) missense probably damaging 1.00
R5070:Kcna2 UTSW 3 107,104,637 (GRCm38) missense probably damaging 1.00
R5126:Kcna2 UTSW 3 107,104,234 (GRCm38) missense probably damaging 1.00
R5146:Kcna2 UTSW 3 107,105,498 (GRCm38) missense probably benign 0.00
R5205:Kcna2 UTSW 3 107,097,146 (GRCm38) unclassified probably benign
R6687:Kcna2 UTSW 3 107,105,027 (GRCm38) missense probably damaging 1.00
R6689:Kcna2 UTSW 3 107,105,027 (GRCm38) missense probably damaging 1.00
R7216:Kcna2 UTSW 3 107,104,793 (GRCm38) missense probably damaging 0.99
R7304:Kcna2 UTSW 3 107,104,750 (GRCm38) missense probably benign
R7538:Kcna2 UTSW 3 107,104,568 (GRCm38) missense probably benign 0.31
R7585:Kcna2 UTSW 3 107,105,342 (GRCm38) missense probably damaging 1.00
R7968:Kcna2 UTSW 3 107,105,144 (GRCm38) missense possibly damaging 0.79
R8241:Kcna2 UTSW 3 107,105,022 (GRCm38) missense probably damaging 1.00
R9223:Kcna2 UTSW 3 107,104,990 (GRCm38) missense possibly damaging 0.93
R9441:Kcna2 UTSW 3 107,104,952 (GRCm38) missense probably benign
R9449:Kcna2 UTSW 3 107,105,571 (GRCm38) nonsense probably null
Predicted Primers PCR Primer
(F):5'- TAGCATGAGGGAATTGGGCC -3'
(R):5'- GTGTTAGCCAAGGTACAGTTGG -3'

Sequencing Primer
(F):5'- AGGGAATTGGGCCTCCTGATATTC -3'
(R):5'- AAGTCCTCATTGCTGTTGTTAAC -3'
Posted On 2016-10-06