Incidental Mutation 'R4938:Kcnq2'
ID 382823
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 042537-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4938 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 180717372-180777093 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 180728766 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 548 (S548P)
Ref Sequence ENSEMBL: ENSMUSP00000099336 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000016491] [ENSMUST00000049792] [ENSMUST00000081528] [ENSMUST00000103047] [ENSMUST00000103048] [ENSMUST00000103050] [ENSMUST00000149964] [ENSMUST00000129695] [ENSMUST00000103051] [ENSMUST00000197015]
AlphaFold no structure available at present
Predicted Effect possibly damaging
Transcript: ENSMUST00000016491
AA Change: S560P

PolyPhen 2 Score 0.948 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000016491
Gene: ENSMUSG00000016346
AA Change: S560P

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: S560P

PolyPhen 2 Score 0.878 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000052453
Gene: ENSMUSG00000016346
AA Change: S560P

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: S560P

PolyPhen 2 Score 0.802 (Sensitivity: 0.84; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000080243
Gene: ENSMUSG00000016346
AA Change: S560P

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 damaging
Transcript: ENSMUST00000103047
AA Change: S548P

PolyPhen 2 Score 0.957 (Sensitivity: 0.78; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000099336
Gene: ENSMUSG00000016346
AA Change: S548P

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: S560P

PolyPhen 2 Score 0.907 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000099337
Gene: ENSMUSG00000016346
AA Change: S560P

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: S512P
SMART Domains Protein: ENSMUSP00000099338
Gene: ENSMUSG00000016346
AA Change: S512P

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: S557P
SMART Domains Protein: ENSMUSP00000099339
Gene: ENSMUSG00000016346
AA Change: S557P

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 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
Predicted Effect possibly damaging
Transcript: ENSMUST00000149964
AA Change: S588P

PolyPhen 2 Score 0.759 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000122915
Gene: ENSMUSG00000016346
AA Change: S588P

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 possibly damaging
Transcript: ENSMUST00000129695
AA Change: S444P

PolyPhen 2 Score 0.632 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000123488
Gene: ENSMUSG00000016346
AA Change: S444P

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 possibly damaging
Transcript: ENSMUST00000103051
AA Change: S570P

PolyPhen 2 Score 0.794 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000099340
Gene: ENSMUSG00000016346
AA Change: S570P

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: ENSMUST00000152099
Predicted Effect possibly damaging
Transcript: ENSMUST00000197015
AA Change: S560P

PolyPhen 2 Score 0.762 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000143263
Gene: ENSMUSG00000016346
AA Change: S560P

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: S266P
Meta Mutation Damage Score 0.3530 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 97.0%
  • 20x: 94.6%
Validation Efficiency 99% (74/75)
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: 67 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Arl14ep G T 2: 106,799,663 (GRCm39) H59Q probably damaging Het
Atp6v0a4 T A 6: 38,055,749 (GRCm39) I321F possibly damaging Het
Cdr2l A G 11: 115,284,651 (GRCm39) D329G possibly damaging Het
Cep55 A G 19: 38,058,364 (GRCm39) E319G probably damaging Het
Cfhr2 C T 1: 139,741,265 (GRCm39) V237I probably benign Het
Clasrp A G 7: 19,318,703 (GRCm39) probably null Het
Col12a1 C A 9: 79,607,632 (GRCm39) E399* probably null Het
Cyp19a1 T A 9: 54,080,647 (GRCm39) I237F probably benign Het
Dnajc6 T G 4: 101,494,010 (GRCm39) N847K probably damaging Het
E330013P04Rik C G 19: 60,150,453 (GRCm39) noncoding transcript Het
Entpd2 A G 2: 25,289,429 (GRCm39) T304A probably benign Het
Etl4 A G 2: 20,803,460 (GRCm39) T779A probably benign Het
Fam107b A T 2: 3,773,907 (GRCm39) I35L probably benign Het
Fgg A T 3: 82,920,175 (GRCm39) Y318F probably benign Het
Fitm1 A C 14: 55,814,076 (GRCm39) T191P probably damaging Het
Fras1 A G 5: 96,924,583 (GRCm39) M3675V probably damaging Het
Fry C T 5: 150,401,454 (GRCm39) R731W probably damaging Het
Galnt17 A T 5: 131,335,237 (GRCm39) S68T probably benign Het
Glp2r G T 11: 67,648,419 (GRCm39) Y94* probably null Het
Grm1 C T 10: 10,812,257 (GRCm39) A256T probably damaging Het
Hoxd13 A G 2: 74,499,027 (GRCm39) Y125C probably benign Het
Hspa14 A T 2: 3,492,646 (GRCm39) I373K probably benign Het
Ifnlr1 A G 4: 135,432,593 (GRCm39) E343G probably benign Het
Ighv5-9 A G 12: 113,625,582 (GRCm39) S54P probably benign Het
Insyn2b G A 11: 34,352,231 (GRCm39) G91E probably damaging Het
Irf2bpl A G 12: 86,928,892 (GRCm39) S594P possibly damaging Het
Lrp2 G A 2: 69,302,712 (GRCm39) R3006W probably damaging Het
Lrrc4c A T 2: 97,459,646 (GRCm39) I91F probably damaging Het
Mdh1b T C 1: 63,750,663 (GRCm39) D435G probably benign Het
Mettl3 A T 14: 52,537,184 (GRCm39) S182T probably damaging Het
Mllt6 A G 11: 97,569,233 (GRCm39) T862A probably benign Het
Mmp27 G T 9: 7,578,983 (GRCm39) R412I probably damaging Het
Mstn A G 1: 53,105,582 (GRCm39) N308S possibly damaging Het
Ncapg A G 5: 45,828,551 (GRCm39) T101A probably benign Het
Ngf C T 3: 102,427,790 (GRCm39) R180W probably damaging Het
Notch1 G A 2: 26,364,136 (GRCm39) Q862* probably null Het
Nsrp1 T C 11: 76,936,570 (GRCm39) D542G probably damaging Het
Nup214 C A 2: 31,873,171 (GRCm39) T255K probably benign Het
Or5b21 T A 19: 12,839,916 (GRCm39) M259K probably damaging Het
Or8b43 T A 9: 38,360,679 (GRCm39) D170E probably benign Het
Papln C T 12: 83,829,677 (GRCm39) P911S probably benign Het
Pdxdc1 A G 16: 13,693,933 (GRCm39) V163A probably benign Het
Plekhj1 A T 10: 80,633,609 (GRCm39) I76N probably damaging Het
Pnp2 A G 14: 51,201,025 (GRCm39) probably null Het
Polr3gl T C 3: 96,487,208 (GRCm39) E89G probably benign Het
Polrmt A G 10: 79,582,385 (GRCm39) M1T probably null Het
Prss37 A G 6: 40,491,917 (GRCm39) I221T possibly damaging Het
Ptx4 C T 17: 25,342,139 (GRCm39) Q205* probably null Het
Qsox1 T C 1: 155,655,414 (GRCm39) E583G probably benign Het
Riok3 T A 18: 12,288,300 (GRCm39) N492K probably benign Het
Sec13 A G 6: 113,712,153 (GRCm39) W61R probably damaging Het
Slc20a2 T C 8: 23,051,221 (GRCm39) V418A possibly damaging Het
Smad9 G A 3: 54,696,651 (GRCm39) V239I probably benign Het
Stmn2 A G 3: 8,610,792 (GRCm39) E92G probably damaging Het
Taf1c A G 8: 120,325,537 (GRCm39) V775A probably benign Het
Thsd7a T A 6: 12,330,991 (GRCm39) I1384L probably benign Het
Tnxb A G 17: 34,932,606 (GRCm39) Y2275C probably damaging Het
Trmo G T 4: 46,382,388 (GRCm39) T243N probably benign Het
Tyrp1 C T 4: 80,758,883 (GRCm39) A252V probably damaging Het
Vasp T C 7: 18,991,642 (GRCm39) *376W probably null Het
Vmn1r231 T C 17: 21,110,613 (GRCm39) I101V possibly damaging Het
Zfp532 T C 18: 65,756,837 (GRCm39) S257P probably benign Het
Zfp563 G A 17: 33,324,683 (GRCm39) C426Y probably damaging Het
Zfp647 TGCACG TGCACGCACG 15: 76,795,244 (GRCm39) probably null Het
Zfp703 C A 8: 27,469,801 (GRCm39) H488Q probably damaging Het
Zfp964 A G 8: 70,116,758 (GRCm39) N452D possibly damaging Het
Zfyve28 A C 5: 34,390,698 (GRCm39) Y188D 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
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
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'- GGACACGCACATAGACTTGC -3'
(R):5'- AGAGTAACCTCTGTCTGGAACTC -3'

Sequencing Primer
(F):5'- AGACTTGCTACCACAGTGTG -3'
(R):5'- GTAACCTCTGTCTGGAACTCATGATC -3'
Posted On 2016-04-27