Incidental Mutation 'R0269:Kcnq2'
ID 35131
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 038495-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0269 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 180717372-180777093 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 180738767 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Glycine at position 294 (E294G)
Ref Sequence ENSEMBL: ENSMUSP00000123488 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000016491] [ENSMUST00000049792] [ENSMUST00000081528] [ENSMUST00000103047] [ENSMUST00000103048] [ENSMUST00000103050] [ENSMUST00000149964] [ENSMUST00000129695] [ENSMUST00000197015] [ENSMUST00000103051]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000016491
AA Change: E398G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000016491
Gene: ENSMUSG00000016346
AA Change: E398G

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: E398G

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000052453
Gene: ENSMUSG00000016346
AA Change: E398G

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: E398G

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000080243
Gene: ENSMUSG00000016346
AA Change: E398G

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: E398G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000099336
Gene: ENSMUSG00000016346
AA Change: E398G

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: E398G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000099337
Gene: ENSMUSG00000016346
AA Change: E398G

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: E351G
SMART Domains Protein: ENSMUSP00000099338
Gene: ENSMUSG00000016346
AA Change: E351G

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: E408G
SMART Domains Protein: ENSMUSP00000099339
Gene: ENSMUSG00000016346
AA Change: E408G

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: E408G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000122915
Gene: ENSMUSG00000016346
AA Change: E408G

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: ENSMUST00000129695
AA Change: E294G

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000123488
Gene: ENSMUSG00000016346
AA Change: E294G

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: ENSMUST00000197015
AA Change: E398G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000143263
Gene: ENSMUSG00000016346
AA Change: E398G

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: E116G
Predicted Effect probably benign
Transcript: ENSMUST00000103051
AA Change: E408G

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000099340
Gene: ENSMUSG00000016346
AA Change: E408G

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: 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: ENSMUST00000152099
Predicted Effect noncoding transcript
Transcript: ENSMUST00000145861
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: 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
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 98.7%
  • 3x: 97.8%
  • 10x: 96.1%
  • 20x: 93.6%
Validation Efficiency 100% (59/59)
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: 58 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
5031439G07Rik C T 15: 84,838,201 (GRCm39) V231I possibly damaging Het
Abca1 T C 4: 53,044,228 (GRCm39) D1798G probably benign Het
Adcy2 T A 13: 68,826,725 (GRCm39) K660* probably null Het
Alk G T 17: 72,910,578 (GRCm39) P43T probably damaging Het
Amhr2 T C 15: 102,355,503 (GRCm39) C189R probably benign Het
Arrb1 T C 7: 99,243,884 (GRCm39) L278P probably damaging Het
AW551984 T C 9: 39,511,246 (GRCm39) Y153C probably damaging Het
Bpifb1 A G 2: 154,054,867 (GRCm39) D253G possibly damaging Het
Bpifb9b C T 2: 154,161,545 (GRCm39) T559M probably benign Het
Cd46 T G 1: 194,746,996 (GRCm39) I339L probably benign Het
Cdkn2aip A G 8: 48,165,012 (GRCm39) S234P probably damaging Het
Chil3 T C 3: 106,063,072 (GRCm39) K173E probably benign Het
Csf2rb2 G T 15: 78,173,065 (GRCm39) T265N probably benign Het
Cyp2c40 A G 19: 39,762,340 (GRCm39) F436L probably damaging Het
D130040H23Rik T C 8: 69,753,446 (GRCm39) F24S probably benign Het
Defb12 G T 8: 19,164,375 (GRCm39) A34E probably damaging Het
Fam234a A T 17: 26,435,591 (GRCm39) D264E probably benign Het
Fbxl17 A C 17: 63,691,987 (GRCm39) F42V probably damaging Het
Gldc T A 19: 30,096,002 (GRCm39) I670F probably damaging Het
Guf1 A C 5: 69,716,942 (GRCm39) Q168P probably damaging Het
Hcn2 A G 10: 79,570,075 (GRCm39) probably benign Het
Hddc2 A G 10: 31,203,942 (GRCm39) M190V probably benign Het
Kdelr1 T A 7: 45,523,463 (GRCm39) probably benign Het
Kidins220 T A 12: 25,090,511 (GRCm39) H1158Q probably damaging Het
Laptm5 A T 4: 130,658,127 (GRCm39) N185Y probably benign Het
Mgat4a A G 1: 37,529,388 (GRCm39) Y164H possibly damaging Het
Mlh3 C A 12: 85,315,179 (GRCm39) V336L probably benign Het
Myadm A G 7: 3,345,273 (GRCm39) T12A unknown Het
Nol8 T C 13: 49,807,921 (GRCm39) F46L possibly damaging Het
Ntrk1 T C 3: 87,691,240 (GRCm39) D308G possibly damaging Het
Oog3 A T 4: 143,886,784 (GRCm39) V112D probably benign Het
Or4a66 A G 2: 88,531,040 (GRCm39) V211A probably damaging Het
Or5af2 T C 11: 58,707,975 (GRCm39) V47A probably damaging Het
Or5m9b A G 2: 85,905,485 (GRCm39) M134V probably benign Het
Or8g34 T C 9: 39,373,090 (GRCm39) M118T probably damaging Het
Or9s18 A T 13: 65,300,692 (GRCm39) Y218F possibly damaging Het
Pramel14 A G 4: 143,720,088 (GRCm39) probably benign Het
Prss39 A T 1: 34,539,279 (GRCm39) H173L probably damaging Het
Rabl6 A G 2: 25,476,878 (GRCm39) probably null Het
Recql5 T C 11: 115,819,050 (GRCm39) D172G possibly damaging Het
Reln T C 5: 22,125,535 (GRCm39) D2716G probably damaging Het
Rgs7 A G 1: 175,098,386 (GRCm39) S58P possibly damaging Het
Sema6d T A 2: 124,502,665 (GRCm39) F583L possibly damaging Het
Sgsm1 T C 5: 113,434,795 (GRCm39) probably null Het
Slc22a19 A T 19: 7,686,986 (GRCm39) probably benign Het
Slc6a21 T A 7: 44,936,332 (GRCm39) Y428* probably null Het
Smarca4 T G 9: 21,547,497 (GRCm39) M260R probably benign Het
Smg6 C A 11: 75,053,757 (GRCm39) T1413K probably benign Het
Spata17 T C 1: 186,830,069 (GRCm39) I322V probably benign Het
Stxbp1 A C 2: 32,692,795 (GRCm39) I407S probably damaging Het
Sult1d1 A T 5: 87,712,661 (GRCm39) I61N probably damaging Het
Sytl2 T C 7: 90,052,228 (GRCm39) probably benign Het
Tm4sf5 T A 11: 70,401,495 (GRCm39) S165T probably damaging Het
Tmx2 T C 2: 84,502,740 (GRCm39) D256G probably benign Het
Trmt11 T A 10: 30,463,485 (GRCm39) H210L probably benign Het
Tut7 A T 13: 59,964,669 (GRCm39) probably null Het
Ush2a T A 1: 188,542,373 (GRCm39) M3313K probably benign Het
Zfp955b A T 17: 33,524,437 (GRCm39) S43R 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
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
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'- AGTGCTGCCAAATCCCTGTGAG -3'
(R):5'- ATGACCCAACCTGTGGACATGAGC -3'

Sequencing Primer
(F):5'- TCCCTGTGAGGAGGCTATAAC -3'
(R):5'- CATGAGCATAGGTGTCAGGTC -3'
Posted On 2013-05-09