Incidental Mutation 'R3898:Kcnq2'
ID 309040
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 040906-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R3898 (G1)
Quality Score 225
Status Not validated
Chromosome 2
Chromosomal Location 180717372-180777093 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 180751479 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Alanine to Threonine at position 306 (A306T)
Ref Sequence ENSEMBL: ENSMUSP00000016491 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000016491] [ENSMUST00000049792] [ENSMUST00000081528] [ENSMUST00000103047] [ENSMUST00000103048] [ENSMUST00000103050] [ENSMUST00000149964] [ENSMUST00000103051] [ENSMUST00000129695] [ENSMUST00000197015]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000016491
AA Change: A306T

PolyPhen 2 Score 0.969 (Sensitivity: 0.77; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000016491
Gene: ENSMUSG00000016346
AA Change: A306T

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 possibly damaging
Transcript: ENSMUST00000049792
AA Change: A306T

PolyPhen 2 Score 0.888 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000052453
Gene: ENSMUSG00000016346
AA Change: A306T

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 possibly damaging
Transcript: ENSMUST00000081528
AA Change: A306T

PolyPhen 2 Score 0.886 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000080243
Gene: ENSMUSG00000016346
AA Change: A306T

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 possibly damaging
Transcript: ENSMUST00000103047
AA Change: A306T

PolyPhen 2 Score 0.946 (Sensitivity: 0.80; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000099336
Gene: ENSMUSG00000016346
AA Change: A306T

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 possibly damaging
Transcript: ENSMUST00000103048
AA Change: A306T

PolyPhen 2 Score 0.944 (Sensitivity: 0.80; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000099337
Gene: ENSMUSG00000016346
AA Change: A306T

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: A249T
SMART Domains Protein: ENSMUSP00000099338
Gene: ENSMUSG00000016346
AA Change: A249T

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: A306T
SMART Domains Protein: ENSMUSP00000099339
Gene: ENSMUSG00000016346
AA Change: A306T

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 possibly damaging
Transcript: ENSMUST00000149964
AA Change: A306T

PolyPhen 2 Score 0.946 (Sensitivity: 0.80; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000122915
Gene: ENSMUSG00000016346
AA Change: A306T

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 noncoding transcript
Transcript: ENSMUST00000154164
SMART Domains Protein: ENSMUSP00000131544
Gene: ENSMUSG00000016346

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 1.4e-29 PFAM
Pfam:Ion_trans_2 237 317 7.8e-15 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000103051
AA Change: A306T

PolyPhen 2 Score 0.598 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000099340
Gene: ENSMUSG00000016346
AA Change: A306T

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 noncoding transcript
Transcript: ENSMUST00000123336
SMART Domains Protein: ENSMUSP00000130700
Gene: ENSMUSG00000016346

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 2.2e-30 PFAM
Pfam:Ion_trans_2 237 317 1.6e-15 PFAM
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: ENSMUST00000129361
SMART Domains Protein: ENSMUSP00000131756
Gene: ENSMUSG00000016346

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 310 7.6e-29 PFAM
Pfam:Ion_trans_2 237 311 2.9e-14 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000129695
AA Change: A192T

PolyPhen 2 Score 0.277 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000123488
Gene: ENSMUSG00000016346
AA Change: A192T

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 noncoding transcript
Transcript: ENSMUST00000139458
SMART Domains Protein: ENSMUSP00000130633
Gene: ENSMUSG00000016346

DomainStartEndE-ValueType
Pfam:Ion_trans 91 324 2.6e-32 PFAM
Pfam:Ion_trans_2 237 317 9.7e-15 PFAM
low complexity region 408 425 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144592
SMART Domains Protein: ENSMUSP00000133237
Gene: ENSMUSG00000016346

DomainStartEndE-ValueType
transmembrane domain 93 115 N/A INTRINSIC
Pfam:Ion_trans 128 312 5.6e-29 PFAM
Pfam:Ion_trans_2 237 317 2.2e-14 PFAM
low complexity region 398 415 N/A INTRINSIC
Predicted Effect possibly damaging
Transcript: ENSMUST00000197015
AA Change: A306T

PolyPhen 2 Score 0.753 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000143263
Gene: ENSMUSG00000016346
AA Change: A306T

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 unknown
Transcript: ENSMUST00000197599
AA Change: A24T
Predicted Effect noncoding transcript
Transcript: ENSMUST00000140789
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 94.8%
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: 44 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Alg1 A C 16: 5,054,253 (GRCm39) I154L possibly damaging Het
Ankra2 C T 13: 98,410,317 (GRCm39) L136F probably benign Het
Anpep A G 7: 79,488,973 (GRCm39) S372P probably benign Het
Cabyr T C 18: 12,884,580 (GRCm39) S356P probably benign Het
Cad G T 5: 31,231,366 (GRCm39) C1633F probably benign Het
Cadps2 G A 6: 23,528,125 (GRCm39) R425W probably damaging Het
Ccdc180 A G 4: 45,912,799 (GRCm39) K593E possibly damaging Het
Cdh8 T A 8: 99,898,005 (GRCm39) E436V probably damaging Het
Cfap95 A G 19: 23,570,466 (GRCm39) V101A probably benign Het
Cln6 T G 9: 62,757,934 (GRCm39) F231C probably damaging Het
Cul2 A G 18: 3,434,033 (GRCm39) K677E probably benign Het
Cyp2c69 T C 19: 39,864,834 (GRCm39) I215V probably benign Het
Dhx36 T C 3: 62,399,790 (GRCm39) D393G probably damaging Het
Dnah7b T C 1: 46,282,417 (GRCm39) V2850A probably damaging Het
Dnah8 G A 17: 31,073,872 (GRCm39) R4514H probably damaging Het
Drg2 T A 11: 60,347,460 (GRCm39) S50T probably benign Het
Ecscr A G 18: 35,846,705 (GRCm39) S230P possibly damaging Het
Eif2ak4 T C 2: 118,261,404 (GRCm39) V527A probably damaging Het
Elfn1 G A 5: 139,957,719 (GRCm39) R241H probably damaging Het
Fchsd2 A G 7: 100,841,006 (GRCm39) K172E possibly damaging Het
Fli1 C T 9: 32,388,018 (GRCm39) G24R possibly damaging Het
Frmd3 A G 4: 73,992,346 (GRCm39) D71G probably damaging Het
Ggnbp1 A G 17: 27,244,312 (GRCm39) probably benign Het
Gpat2 T C 2: 127,277,018 (GRCm39) F713S probably damaging Het
H2-Q2 C T 17: 35,561,743 (GRCm39) P78S probably damaging Het
Lmntd1 G A 6: 145,359,152 (GRCm39) P333S probably benign Het
Lrp1 G A 10: 127,427,969 (GRCm39) R535* probably null Het
Mmrn2 G T 14: 34,121,517 (GRCm39) probably null Het
Nlrp1a G A 11: 71,013,700 (GRCm39) P517S probably benign Het
Or2y13 A T 11: 49,415,386 (GRCm39) I279F probably damaging Het
Pou4f1 T C 14: 104,703,165 (GRCm39) *422W probably null Het
Ptpn14 C T 1: 189,582,728 (GRCm39) P525L probably benign Het
Pyroxd2 C A 19: 42,728,831 (GRCm39) G190C probably damaging Het
Rd3 T C 1: 191,717,217 (GRCm39) V114A probably damaging Het
Sptbn5 T C 2: 119,887,691 (GRCm39) noncoding transcript Het
Tbc1d5 A T 17: 51,270,772 (GRCm39) F153Y probably damaging Het
Thop1 G A 10: 80,916,278 (GRCm39) G429S probably damaging Het
Trim30d T A 7: 104,132,736 (GRCm39) I184L probably benign Het
Ubr5 T C 15: 37,997,983 (GRCm39) S1727G probably benign Het
Vezf1 T C 11: 87,966,999 (GRCm39) F77L probably benign Het
Vmn2r12 C T 5: 109,238,370 (GRCm39) A457T probably benign Het
Xirp1 A T 9: 119,848,406 (GRCm39) M159K probably benign Het
Zkscan17 C T 11: 59,394,263 (GRCm39) A113T probably damaging Het
Zyg11a T A 4: 108,067,391 (GRCm39) N40Y probably damaging 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
R1946:Kcnq2 UTSW 2 180,730,244 (GRCm39) missense probably benign 0.09
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
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'- CGCAGGCATCTAAACCAGAG -3'
(R):5'- GCTTCCCCTAAACTACTTGGATG -3'

Sequencing Primer
(F):5'- AGCAGCCTCACTCTGGTCTAG -3'
(R):5'- ATGAACTTCCCATGGCTGAG -3'
Posted On 2015-04-17