Incidental Mutation 'R1946:Kcnq2'
ID 216653
Institutional Source Beutler Lab
Gene Symbol Kcnq2
Ensembl Gene ENSMUSG00000016346
Gene Name potassium voltage-gated channel, subfamily Q, member 2
Synonyms Nmf134, KQT2
MMRRC Submission 039964-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1946 (G1)
Quality Score 225
Status Not validated
Chromosome 2
Chromosomal Location 180717372-180777093 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 180730244 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Valine at position 446 (D446V)
Ref Sequence ENSEMBL: ENSMUSP00000052453 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000016491] [ENSMUST00000049792] [ENSMUST00000081528] [ENSMUST00000103047] [ENSMUST00000103048] [ENSMUST00000103050] [ENSMUST00000149964] [ENSMUST00000197015] [ENSMUST00000129695] [ENSMUST00000103051]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000016491
AA Change: D446V

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000016491
Gene: ENSMUSG00000016346
AA Change: D446V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 7.3e-29 PFAM
Pfam:Ion_trans_2 237 317 2.5e-14 PFAM
Pfam:KCNQ_channel 436 595 2e-59 PFAM
Pfam:KCNQ_channel 593 673 1.7e-22 PFAM
low complexity region 711 723 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000049792
AA Change: D446V

PolyPhen 2 Score 0.085 (Sensitivity: 0.93; Specificity: 0.85)
SMART Domains Protein: ENSMUSP00000052453
Gene: ENSMUSG00000016346
AA Change: D446V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 7.2e-29 PFAM
Pfam:Ion_trans_2 237 317 2.5e-14 PFAM
Pfam:KCNQ_channel 436 565 3.1e-55 PFAM
Pfam:KCNQ_channel 587 668 6.8e-23 PFAM
low complexity region 706 718 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000081528
AA Change: D446V

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000080243
Gene: ENSMUSG00000016346
AA Change: D446V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 4.3e-29 PFAM
Pfam:Ion_trans_2 237 317 1.7e-14 PFAM
Pfam:KCNQ_channel 436 564 2.3e-55 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000103047
AA Change: D434V

PolyPhen 2 Score 0.065 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000099336
Gene: ENSMUSG00000016346
AA Change: D434V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 7.1e-29 PFAM
Pfam:Ion_trans_2 237 317 2.5e-14 PFAM
Pfam:KCNQ_channel 424 583 2e-59 PFAM
Pfam:KCNQ_channel 581 661 1.7e-22 PFAM
low complexity region 699 711 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000103048
AA Change: D446V

PolyPhen 2 Score 0.008 (Sensitivity: 0.96; Specificity: 0.76)
SMART Domains Protein: ENSMUSP00000099337
Gene: ENSMUSG00000016346
AA Change: D446V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 6.7e-29 PFAM
Pfam:Ion_trans_2 237 317 2.4e-14 PFAM
Pfam:KCNQ_channel 436 637 1.3e-82 PFAM
low complexity region 675 687 N/A INTRINSIC
Predicted Effect unknown
Transcript: ENSMUST00000103049
AA Change: D399V
SMART Domains Protein: ENSMUSP00000099338
Gene: ENSMUSG00000016346
AA Change: D399V

DomainStartEndE-ValueType
Pfam:Ion_trans 35 268 3.7e-32 PFAM
Pfam:Ion_trans_2 181 261 1.1e-14 PFAM
Pfam:KCNQ_channel 392 584 1e-92 PFAM
Pfam:KCNQ2_u3 591 679 3.9e-39 PFAM
Pfam:KCNQC3-Ank-G_bd 692 791 1.1e-48 PFAM
Predicted Effect unknown
Transcript: ENSMUST00000103050
AA Change: D444V
SMART Domains Protein: ENSMUSP00000099339
Gene: ENSMUSG00000016346
AA Change: D444V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 8.7e-29 PFAM
Pfam:Ion_trans_2 237 317 2.9e-14 PFAM
Pfam:KCNQ_channel 436 637 1.7e-82 PFAM
low complexity region 675 687 N/A INTRINSIC
Pfam:KCNQC3-Ank-G_bd 737 839 1.6e-51 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000149964
AA Change: D474V

PolyPhen 2 Score 0.003 (Sensitivity: 0.98; Specificity: 0.44)
SMART Domains Protein: ENSMUSP00000122915
Gene: ENSMUSG00000016346
AA Change: D474V

DomainStartEndE-ValueType
Pfam:Ion_trans 91 324 4.4e-32 PFAM
Pfam:Ion_trans_2 237 317 1.3e-14 PFAM
low complexity region 418 431 N/A INTRINSIC
Pfam:KCNQ_channel 466 659 6.2e-94 PFAM
Pfam:KCNQ2_u3 666 754 4.5e-39 PFAM
Pfam:KCNQC3-Ank-G_bd 767 866 1.2e-48 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000197015
AA Change: D446V

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000143263
Gene: ENSMUSG00000016346
AA Change: D446V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 8.7e-29 PFAM
Pfam:Ion_trans_2 237 317 2.9e-14 PFAM
Pfam:KCNQ_channel 436 637 1.7e-82 PFAM
low complexity region 675 687 N/A INTRINSIC
Pfam:KCNQC3-Ank-G_bd 737 839 1.6e-51 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000129695
AA Change: D330V

PolyPhen 2 Score 0.008 (Sensitivity: 0.96; Specificity: 0.76)
SMART Domains Protein: ENSMUSP00000123488
Gene: ENSMUSG00000016346
AA Change: D330V

DomainStartEndE-ValueType
Pfam:Ion_trans 14 198 6.8e-29 PFAM
Pfam:Ion_trans_2 123 203 2.4e-14 PFAM
Pfam:KCNQ_channel 320 521 1.3e-82 PFAM
low complexity region 559 571 N/A INTRINSIC
Pfam:KCNQC3-Ank-G_bd 621 723 1.3e-51 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000103051
AA Change: D456V

PolyPhen 2 Score 0.014 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000099340
Gene: ENSMUSG00000016346
AA Change: D456V

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 8.9e-29 PFAM
Pfam:Ion_trans_2 237 317 2.9e-14 PFAM
Pfam:KCNQ_channel 446 647 1.7e-82 PFAM
low complexity region 685 697 N/A INTRINSIC
Pfam:KCNQC3-Ank-G_bd 747 849 1.7e-51 PFAM
Predicted Effect unknown
Transcript: ENSMUST00000197599
AA Change: D152V
Predicted Effect noncoding transcript
Transcript: ENSMUST00000152099
Predicted Effect noncoding transcript
Transcript: ENSMUST00000129073
SMART Domains Protein: ENSMUSP00000127061
Gene: ENSMUSG00000016346

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 1e-28 PFAM
Pfam:Ion_trans_2 237 317 3.4e-14 PFAM
Pfam:KCNQ_channel 436 565 3e-55 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000145861
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.4%
  • 10x: 96.7%
  • 20x: 93.8%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The M channel is a slowly activating and deactivating potassium channel that plays a critical role in the regulation of neuronal excitability. The M channel is formed by the association of the protein encoded by this gene and a related protein encoded by the KCNQ3 gene, both integral membrane proteins. M channel currents are inhibited by M1 muscarinic acetylcholine receptors and activated by retigabine, a novel anti-convulsant drug. Defects in this gene are a cause of benign familial neonatal convulsions type 1 (BFNC), also known as epilepsy, benign neonatal type 1 (EBN1). At least five transcript variants encoding five different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null mutation die perinatally with pulmonary atelectasis. Heterozygous mice exhibit a hypersensitivity to the epileptic inducer pentylenetetrazole. Mice homozygous for a knock-in allele exhibit spontaneous seizures and premature death. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 76 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aasdh A G 5: 77,039,551 (GRCm39) S253P probably damaging Het
Adamts5 C A 16: 85,696,131 (GRCm39) C342F probably damaging Het
Adgrv1 C T 13: 81,522,368 (GRCm39) C5923Y probably damaging Het
Aen G C 7: 78,552,420 (GRCm39) E32Q probably damaging Het
Apba2 T C 7: 64,394,378 (GRCm39) probably null Het
Arhgap44 A G 11: 64,902,922 (GRCm39) M509T probably damaging Het
Arpc1b A G 5: 145,059,443 (GRCm39) T56A probably null Het
Atoh1 T C 6: 64,706,443 (GRCm39) V46A probably benign Het
Bmpr2 T C 1: 59,907,556 (GRCm39) V883A possibly damaging Het
Bpifa1 A T 2: 153,987,554 (GRCm39) I135F probably damaging Het
Bsn A G 9: 107,991,850 (GRCm39) F1301L probably damaging Het
Capn13 T C 17: 73,657,520 (GRCm39) E240G possibly damaging Het
Ccdc18 A G 5: 108,376,861 (GRCm39) E1434G probably damaging Het
Coq8b G A 7: 26,939,299 (GRCm39) V150I possibly damaging Het
Cpn1 G A 19: 43,944,957 (GRCm39) T450M probably benign Het
Dlg4 A G 11: 69,930,401 (GRCm39) Y432C probably damaging Het
Dnah8 C A 17: 30,931,359 (GRCm39) T1458K probably benign Het
Dock5 A T 14: 68,023,765 (GRCm39) M1132K probably damaging Het
Dsg2 A G 18: 20,713,605 (GRCm39) D192G probably damaging Het
F930017D23Rik G A 10: 43,469,440 (GRCm39) noncoding transcript Het
Fndc11 A T 2: 180,863,627 (GRCm39) D144V probably benign Het
Fut2 A G 7: 45,300,748 (GRCm39) F8S probably damaging Het
Gad2 A T 2: 22,575,440 (GRCm39) T515S probably benign Het
Ganab T A 19: 8,888,172 (GRCm39) D439E probably damaging Het
Gm10228 C A 16: 88,838,241 (GRCm39) G21V unknown Het
Grm3 A G 5: 9,562,123 (GRCm39) W576R probably damaging Het
Gsdmc4 C A 15: 63,774,629 (GRCm39) D51Y probably benign Het
Hmcn2 T C 2: 31,295,647 (GRCm39) S2619P probably damaging Het
Kera A G 10: 97,445,009 (GRCm39) K123E probably benign Het
Kmt2c A T 5: 25,520,152 (GRCm39) V1986E probably benign Het
Lrp11 T C 10: 7,499,540 (GRCm39) Y244H probably damaging Het
Lrp1b T A 2: 40,555,159 (GRCm39) D320V unknown Het
Lrrcc1 A G 3: 14,615,453 (GRCm39) R394G probably benign Het
Lrrk2 G A 15: 91,620,864 (GRCm39) probably null Het
Map4k5 A T 12: 69,892,529 (GRCm39) D133E probably damaging Het
Megf11 A T 9: 64,586,558 (GRCm39) D461V probably damaging Het
Msrb3 A G 10: 120,687,913 (GRCm39) V54A probably damaging Het
Muc21 A T 17: 35,933,416 (GRCm39) probably benign Het
Ncoa3 T A 2: 165,901,097 (GRCm39) N896K possibly damaging Het
Ncor2 G A 5: 125,111,476 (GRCm39) T1314I probably damaging Het
Nes A G 3: 87,885,821 (GRCm39) Q1316R possibly damaging Het
Nfe2l3 A C 6: 51,434,295 (GRCm39) Q285P probably damaging Het
Nkd1 C T 8: 89,318,745 (GRCm39) H357Y probably damaging Het
Nmt2 T A 2: 3,323,672 (GRCm39) I355N probably benign Het
Or10ak11 T C 4: 118,687,223 (GRCm39) N139S probably benign Het
Or1n1b A T 2: 36,780,458 (GRCm39) M134K possibly damaging Het
Or5ae1 T C 7: 84,565,487 (GRCm39) S167P probably benign Het
Or5b3 T C 19: 13,388,143 (GRCm39) V70A possibly damaging Het
Or7a38 T A 10: 78,752,758 (GRCm39) I28N probably damaging Het
Or8b3 T A 9: 38,314,182 (GRCm39) M1K probably null Het
Otx1 G T 11: 21,948,482 (GRCm39) T46K probably damaging Het
Panx1 A G 9: 14,918,822 (GRCm39) C346R probably benign Het
Pcdhb16 T A 18: 37,611,952 (GRCm39) L304* probably null Het
Plet1 A G 9: 50,415,652 (GRCm39) probably null Het
Plod2 A G 9: 92,489,188 (GRCm39) S707G probably damaging Het
Plscr4 G A 9: 92,365,889 (GRCm39) V120I probably damaging Het
Ppp1r12b A G 1: 134,820,008 (GRCm39) V245A probably damaging Het
Ppp2r2d A G 7: 138,470,196 (GRCm39) D19G probably damaging Het
Pramel31 T A 4: 144,088,435 (GRCm39) V77E probably benign Het
Rimbp3 G A 16: 17,028,291 (GRCm39) V572I probably benign Het
Ror2 T C 13: 53,285,885 (GRCm39) I110V probably damaging Het
Sec24d A T 3: 123,147,043 (GRCm39) H667L probably benign Het
Sema3d A G 5: 12,623,810 (GRCm39) Q573R probably damaging Het
Snx19 T A 9: 30,343,620 (GRCm39) N593K probably damaging Het
Sulf1 T C 1: 12,867,131 (GRCm39) V105A probably benign Het
Syngr3 T C 17: 24,906,680 (GRCm39) N45S probably benign Het
Tenm4 A T 7: 96,385,015 (GRCm39) H524L probably damaging Het
Tex30 C T 1: 44,130,564 (GRCm39) G68D probably damaging Het
Tmem43 A T 6: 91,463,891 (GRCm39) I389F probably benign Het
Trpm1 A T 7: 63,873,556 (GRCm39) N488Y probably damaging Het
Usf2 T C 7: 30,655,663 (GRCm39) T1A probably null Het
Vill A T 9: 118,887,560 (GRCm39) H108L probably benign Het
Vmn1r16 T C 6: 57,299,885 (GRCm39) I246V probably benign Het
Vmn1r188 T G 13: 22,272,815 (GRCm39) S256R possibly damaging Het
Zfp12 G A 5: 143,231,133 (GRCm39) E487K probably damaging Het
Zfp24 AC A 18: 24,147,476 (GRCm39) probably null Het
Other mutations in Kcnq2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01063:Kcnq2 APN 2 180,751,582 (GRCm39) unclassified probably benign
IGL02064:Kcnq2 APN 2 180,750,819 (GRCm39) missense probably damaging 1.00
IGL02231:Kcnq2 APN 2 180,723,508 (GRCm39) missense probably benign 0.22
IGL02261:Kcnq2 APN 2 180,723,483 (GRCm39) missense probably damaging 0.98
IGL02510:Kcnq2 APN 2 180,723,154 (GRCm39) missense probably benign
IGL02583:Kcnq2 APN 2 180,723,295 (GRCm39) missense probably benign 0.01
IGL02627:Kcnq2 APN 2 180,724,120 (GRCm39) unclassified probably benign
IGL03303:Kcnq2 APN 2 180,724,182 (GRCm39) missense probably benign
R0269:Kcnq2 UTSW 2 180,738,767 (GRCm39) missense probably benign 0.00
R1535:Kcnq2 UTSW 2 180,776,618 (GRCm39) missense probably damaging 1.00
R1688:Kcnq2 UTSW 2 180,728,826 (GRCm39) missense probably damaging 1.00
R1776:Kcnq2 UTSW 2 180,742,350 (GRCm39) missense probably benign 0.01
R2105:Kcnq2 UTSW 2 180,723,145 (GRCm39) missense probably benign 0.03
R2382:Kcnq2 UTSW 2 180,753,900 (GRCm39) missense probably damaging 1.00
R2912:Kcnq2 UTSW 2 180,723,567 (GRCm39) missense probably damaging 1.00
R3826:Kcnq2 UTSW 2 180,746,693 (GRCm39) missense possibly damaging 0.56
R3898:Kcnq2 UTSW 2 180,751,479 (GRCm39) missense probably damaging 0.97
R4282:Kcnq2 UTSW 2 180,722,946 (GRCm39) missense probably damaging 1.00
R4938:Kcnq2 UTSW 2 180,728,766 (GRCm39) missense probably damaging 0.96
R4962:Kcnq2 UTSW 2 180,753,836 (GRCm39) missense possibly damaging 0.59
R5055:Kcnq2 UTSW 2 180,728,554 (GRCm39) intron probably benign
R5107:Kcnq2 UTSW 2 180,750,340 (GRCm39) intron probably benign
R5371:Kcnq2 UTSW 2 180,776,813 (GRCm39) missense probably damaging 1.00
R5557:Kcnq2 UTSW 2 180,776,690 (GRCm39) missense probably benign 0.07
R5839:Kcnq2 UTSW 2 180,751,544 (GRCm39) missense probably damaging 1.00
R5998:Kcnq2 UTSW 2 180,728,801 (GRCm39) missense probably damaging 1.00
R6084:Kcnq2 UTSW 2 180,729,449 (GRCm39) missense possibly damaging 0.53
R6207:Kcnq2 UTSW 2 180,755,026 (GRCm39) missense possibly damaging 0.49
R6744:Kcnq2 UTSW 2 180,727,099 (GRCm39) missense possibly damaging 0.94
R7018:Kcnq2 UTSW 2 180,723,517 (GRCm39) nonsense probably null
R7266:Kcnq2 UTSW 2 180,776,885 (GRCm39) start codon destroyed probably null 0.92
R7291:Kcnq2 UTSW 2 180,730,172 (GRCm39) missense possibly damaging 0.69
R7319:Kcnq2 UTSW 2 180,750,895 (GRCm39) missense probably damaging 1.00
R7447:Kcnq2 UTSW 2 180,754,887 (GRCm39) missense probably damaging 0.97
R7573:Kcnq2 UTSW 2 180,723,382 (GRCm39) missense probably benign 0.04
R7897:Kcnq2 UTSW 2 180,722,934 (GRCm39) missense probably damaging 1.00
R8942:Kcnq2 UTSW 2 180,724,244 (GRCm39) missense probably damaging 1.00
R9381:Kcnq2 UTSW 2 180,751,562 (GRCm39) missense probably damaging 0.97
R9394:Kcnq2 UTSW 2 180,724,217 (GRCm39) missense probably benign
R9516:Kcnq2 UTSW 2 180,776,753 (GRCm39) missense probably benign 0.00
R9544:Kcnq2 UTSW 2 180,729,407 (GRCm39) missense probably damaging 1.00
R9592:Kcnq2 UTSW 2 180,728,813 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AGCCAAGTATTGATGTCCTTCCC -3'
(R):5'- CAAAGAGACTTGTGAACGTGAC -3'

Sequencing Primer
(F):5'- AAGTATTGATGTCCTTCCCCCATCAG -3'
(R):5'- GAACGTGACTTTGTTATTTCCAGAG -3'
Posted On 2014-08-01