Incidental Mutation 'R1768:Kcnq3'
ID 194632
Institutional Source Beutler Lab
Gene Symbol Kcnq3
Ensembl Gene ENSMUSG00000056258
Gene Name potassium voltage-gated channel, subfamily Q, member 3
Synonyms
MMRRC Submission 039799-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.091) question?
Stock # R1768 (G1)
Quality Score 225
Status Validated
Chromosome 15
Chromosomal Location 65858236-66158491 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 65877755 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Proline at position 445 (L445P)
Ref Sequence ENSEMBL: ENSMUSP00000063380 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000070256]
AlphaFold Q8K3F6
Predicted Effect probably damaging
Transcript: ENSMUST00000070256
AA Change: L445P

PolyPhen 2 Score 0.981 (Sensitivity: 0.75; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000063380
Gene: ENSMUSG00000056258
AA Change: L445P

DomainStartEndE-ValueType
low complexity region 8 32 N/A INTRINSIC
low complexity region 66 85 N/A INTRINSIC
Pfam:Ion_trans 122 364 9.9e-31 PFAM
Pfam:Ion_trans_2 268 357 3.4e-14 PFAM
Pfam:KCNQ_channel 448 658 1.4e-89 PFAM
Pfam:KCNQC3-Ank-G_bd 771 867 3.8e-41 PFAM
Meta Mutation Damage Score 0.1139 question?
Coding Region Coverage
  • 1x: 97.4%
  • 3x: 96.9%
  • 10x: 95.3%
  • 20x: 92.4%
Validation Efficiency 91% (107/117)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a protein that functions in the regulation of neuronal excitability. The encoded protein forms an M-channel by associating with the products of the related KCNQ2 or KCNQ5 genes, which both encode integral membrane proteins. M-channel currents are inhibited by M1 muscarinic acetylcholine receptors and are activated by retigabine, a novel anti-convulsant drug. Defects in this gene are a cause of benign familial neonatal convulsions type 2 (BFNC2), also known as epilepsy, benign neonatal type 2 (EBN2). Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2014]
PHENOTYPE: Mice homozygous for a null allele exhibit abnormal apamin-insensitive afterhyperpolarization currents in granule cells, but not pyramidal cells, of the hippocampus. 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: 112 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4921524L21Rik G C 18: 6,623,470 (GRCm39) R60P possibly damaging Het
Aox1 T A 1: 58,393,354 (GRCm39) C1199S probably benign Het
Arhgap18 G A 10: 26,763,857 (GRCm39) M482I probably damaging Het
Arhgap18 G T 10: 26,763,858 (GRCm39) A483S probably damaging Het
Arid4a G A 12: 71,122,112 (GRCm39) S509N probably benign Het
BC051019 T C 7: 109,322,381 (GRCm39) T38A probably benign Het
Bcam T C 7: 19,499,543 (GRCm39) N192S probably null Het
Bend5 A T 4: 111,311,438 (GRCm39) K351* probably null Het
Bicdl2 T A 17: 23,884,923 (GRCm39) M208K probably damaging Het
Ccp110 A T 7: 118,325,247 (GRCm39) probably null Het
Cdc6 A T 11: 98,803,043 (GRCm39) T328S probably damaging Het
Cdk5rap2 G T 4: 70,225,470 (GRCm39) N558K probably benign Het
Cdkn1c C T 7: 143,012,858 (GRCm39) R146K probably benign Het
Ceacam18 G A 7: 43,297,918 (GRCm39) C371Y probably benign Het
Cep95 T A 11: 106,697,177 (GRCm39) C233* probably null Het
Chrnd A G 1: 87,122,650 (GRCm39) I144V probably benign Het
Col6a4 T A 9: 105,957,299 (GRCm39) Q175L probably benign Het
Cym A T 3: 107,120,816 (GRCm39) V263E probably damaging Het
Cyp2a4 G T 7: 26,012,197 (GRCm39) V327F possibly damaging Het
Dhx29 T A 13: 113,084,774 (GRCm39) M664K probably damaging Het
Dlec1 T G 9: 118,975,075 (GRCm39) probably null Het
Dna2 T C 10: 62,792,863 (GRCm39) Y293H probably benign Het
Dnase1l3 T A 14: 7,974,104 (GRCm38) N196Y probably damaging Het
Eea1 T A 10: 95,832,822 (GRCm39) D222E probably damaging Het
Efcab14 A T 4: 115,610,116 (GRCm39) probably null Het
Entpd5 C T 12: 84,432,985 (GRCm39) R189H probably benign Het
Exoc4 A T 6: 33,734,985 (GRCm39) K534M probably damaging Het
Extl1 T A 4: 134,098,449 (GRCm39) Y194F probably benign Het
Eya1 A G 1: 14,323,299 (GRCm39) L161S possibly damaging Het
Fam163b T C 2: 27,002,874 (GRCm39) E41G possibly damaging Het
Fam180a A C 6: 35,292,287 (GRCm39) S40A probably benign Het
Fbxl4 T C 4: 22,385,950 (GRCm39) S186P probably benign Het
Fbxw19 A T 9: 109,323,840 (GRCm39) L45* probably null Het
Fgf14 G T 14: 124,913,924 (GRCm39) T69N probably benign Het
Flt1 A G 5: 147,609,519 (GRCm39) Y432H probably damaging Het
Frmd4b A T 6: 97,283,725 (GRCm39) L374Q possibly damaging Het
G6pc2 T A 2: 69,053,321 (GRCm39) V125D probably damaging Het
Gm10033 T C 8: 69,826,210 (GRCm39) I119M unknown Het
Gna15 A T 10: 81,347,954 (GRCm39) L164Q probably damaging Het
Gnaz C A 10: 74,827,702 (GRCm39) D151E possibly damaging Het
Has1 T C 17: 18,070,562 (GRCm39) T120A probably benign Het
Hectd4 T A 5: 121,496,366 (GRCm39) D3919E possibly damaging Het
Hs3st5 A G 10: 36,709,165 (GRCm39) I233M probably benign Het
Ilf3 T C 9: 21,314,438 (GRCm39) probably benign Het
Inpp5b T A 4: 124,687,069 (GRCm39) L765* probably null Het
Insr A T 8: 3,209,561 (GRCm39) I1174N probably damaging Het
Kash5 T A 7: 44,838,227 (GRCm39) probably null Het
Kctd20 A T 17: 29,181,824 (GRCm39) N159Y probably damaging Het
Kctd20 A T 17: 29,185,755 (GRCm39) D366V probably damaging Het
Klk15 T C 7: 43,587,757 (GRCm39) probably benign Het
Lama4 T G 10: 38,979,497 (GRCm39) N1658K possibly damaging Het
Lonrf2 G A 1: 38,852,357 (GRCm39) P165S probably benign Het
Mas1 T C 17: 13,060,586 (GRCm39) Y279C probably damaging Het
Mast2 G T 4: 116,164,156 (GRCm39) D1747E probably damaging Het
Mest G A 6: 30,745,138 (GRCm39) M235I probably benign Het
Mfsd6 A G 1: 52,699,964 (GRCm39) probably null Het
Mllt10 T A 2: 18,167,657 (GRCm39) S449R probably damaging Het
Mon2 T A 10: 122,849,668 (GRCm39) T1211S probably benign Het
Mrnip G A 11: 50,067,688 (GRCm39) C27Y probably damaging Het
Myh15 A T 16: 48,983,498 (GRCm39) T1538S probably benign Het
Nfatc2ip A G 7: 125,989,634 (GRCm39) V250A probably benign Het
Npy1r A G 8: 67,157,177 (GRCm39) D199G possibly damaging Het
Numbl A G 7: 26,980,379 (GRCm39) T454A probably benign Het
Nutm2 T G 13: 50,627,152 (GRCm39) F436V probably damaging Het
Opa1 T C 16: 29,439,628 (GRCm39) S773P probably benign Het
Or12e1 T A 2: 87,022,042 (GRCm39) S4T probably benign Het
Or2d3 A T 7: 106,491,184 (GRCm39) probably null Het
Or2d3 G T 7: 106,491,185 (GRCm39) L44M probably damaging Het
Or2r11 A G 6: 42,437,611 (GRCm39) L114S probably damaging Het
Or2t48 A G 11: 58,420,602 (GRCm39) L70P probably damaging Het
Or51b17 A G 7: 103,542,484 (GRCm39) S153P probably benign Het
Or51m1 C T 7: 103,578,932 (GRCm39) R301* probably null Het
Or52e7 A G 7: 104,685,157 (GRCm39) S251G probably benign Het
Or52i2 A G 7: 102,319,508 (GRCm39) Y127C probably damaging Het
Or8b12c T A 9: 37,715,599 (GRCm39) Y131N probably damaging Het
Pde8a G C 7: 80,950,471 (GRCm39) probably null Het
Pgam1 T C 19: 41,906,144 (GRCm39) F232S probably damaging Het
Pgk1 T A X: 105,243,914 (GRCm39) V303E possibly damaging Het
Pirb A T 7: 3,720,189 (GRCm39) C395S probably damaging Het
Plxnc1 C T 10: 94,680,184 (GRCm39) V824I probably benign Het
Ppp6r1 A G 7: 4,636,691 (GRCm39) probably null Het
Rapgef4 C A 2: 72,056,131 (GRCm39) probably benign Het
Rars1 T A 11: 35,700,465 (GRCm39) T539S probably damaging Het
Rbm44 G T 1: 91,081,679 (GRCm39) probably null Het
Samd4b A G 7: 28,113,317 (GRCm39) I216T probably benign Het
Serpine2 A C 1: 79,794,532 (GRCm39) F134V probably damaging Het
Shmt1 A G 11: 60,683,790 (GRCm39) Y341H probably damaging Het
Slc23a2 C A 2: 131,917,561 (GRCm39) V226F probably benign Het
Slc23a4 A G 6: 34,933,896 (GRCm39) I69T probably damaging Het
Slc37a1 C A 17: 31,552,652 (GRCm39) T319K possibly damaging Het
Slc6a4 A T 11: 76,904,078 (GRCm39) T178S probably damaging Het
Smarca4 G A 9: 21,612,479 (GRCm39) A1588T possibly damaging Het
Spag17 A T 3: 99,934,668 (GRCm39) Y650F possibly damaging Het
Stab2 C T 10: 86,838,872 (GRCm39) G65S probably damaging Het
Stambpl1 C G 19: 34,204,121 (GRCm39) N70K probably damaging Het
Stip1 C A 19: 6,999,165 (GRCm39) C471F probably damaging Het
Taf1 T C X: 100,584,500 (GRCm39) S223P probably benign Het
Tchh C A 3: 93,350,882 (GRCm39) N107K possibly damaging Het
Tenm3 A C 8: 48,685,139 (GRCm39) H2432Q probably damaging Het
Tmem243 A G 5: 9,168,548 (GRCm39) N110S probably damaging Het
Toe1 A T 4: 116,662,076 (GRCm39) I306F probably benign Het
Trank1 G A 9: 111,221,995 (GRCm39) V2911M probably damaging Het
Trpm4 A G 7: 44,958,036 (GRCm39) I811T probably damaging Het
Tspear T A 10: 77,710,950 (GRCm39) probably null Het
Ttc28 A T 5: 111,425,034 (GRCm39) I1589F possibly damaging Het
Tubgcp3 A G 8: 12,699,686 (GRCm39) probably benign Het
U2af2 C A 7: 5,070,544 (GRCm39) R78S probably benign Het
Wdr17 A T 8: 55,126,689 (GRCm39) D388E possibly damaging Het
Wdr3 A T 3: 100,061,186 (GRCm39) S261T probably benign Het
Zfp667 A G 7: 6,308,066 (GRCm39) N245D possibly damaging Het
Zfp692 A G 11: 58,201,002 (GRCm39) probably benign Het
Zfp729a T C 13: 67,767,370 (GRCm39) H953R probably benign Het
Other mutations in Kcnq3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00673:Kcnq3 APN 15 65,867,120 (GRCm39) missense probably damaging 1.00
IGL00808:Kcnq3 APN 15 65,867,603 (GRCm39) missense possibly damaging 0.49
IGL00969:Kcnq3 APN 15 65,876,575 (GRCm39) missense probably damaging 1.00
IGL01121:Kcnq3 APN 15 65,877,826 (GRCm39) splice site probably benign
IGL01996:Kcnq3 APN 15 65,895,545 (GRCm39) missense probably damaging 0.98
IGL02153:Kcnq3 APN 15 65,897,040 (GRCm39) missense probably damaging 0.96
IGL02950:Kcnq3 APN 15 65,892,142 (GRCm39) missense probably benign 0.12
IGL02963:Kcnq3 APN 15 66,157,675 (GRCm39) splice site probably benign
IGL03102:Kcnq3 APN 15 65,900,637 (GRCm39) missense probably damaging 1.00
IGL03050:Kcnq3 UTSW 15 65,897,027 (GRCm39) missense possibly damaging 0.52
R0345:Kcnq3 UTSW 15 65,892,154 (GRCm39) missense possibly damaging 0.55
R0388:Kcnq3 UTSW 15 65,871,887 (GRCm39) missense probably benign 0.00
R0730:Kcnq3 UTSW 15 65,867,457 (GRCm39) missense probably benign
R1173:Kcnq3 UTSW 15 65,871,891 (GRCm39) missense probably benign 0.01
R1610:Kcnq3 UTSW 15 65,897,109 (GRCm39) missense probably damaging 1.00
R1678:Kcnq3 UTSW 15 65,903,281 (GRCm39) missense probably damaging 1.00
R1714:Kcnq3 UTSW 15 65,871,912 (GRCm39) missense probably benign 0.21
R1755:Kcnq3 UTSW 15 65,867,270 (GRCm39) missense probably damaging 1.00
R1873:Kcnq3 UTSW 15 65,874,104 (GRCm39) missense probably benign 0.16
R1925:Kcnq3 UTSW 15 65,876,658 (GRCm39) missense possibly damaging 0.75
R1970:Kcnq3 UTSW 15 65,900,472 (GRCm39) critical splice donor site probably null
R2140:Kcnq3 UTSW 15 65,877,827 (GRCm39) splice site probably benign
R2141:Kcnq3 UTSW 15 65,867,700 (GRCm39) missense probably benign 0.21
R2149:Kcnq3 UTSW 15 65,895,578 (GRCm39) missense probably damaging 1.00
R2212:Kcnq3 UTSW 15 65,892,142 (GRCm39) missense probably benign
R2272:Kcnq3 UTSW 15 65,900,529 (GRCm39) missense probably damaging 1.00
R2566:Kcnq3 UTSW 15 65,903,276 (GRCm39) missense probably damaging 1.00
R2909:Kcnq3 UTSW 15 65,897,085 (GRCm39) missense possibly damaging 0.87
R3703:Kcnq3 UTSW 15 65,893,588 (GRCm39) critical splice donor site probably null
R3704:Kcnq3 UTSW 15 65,893,588 (GRCm39) critical splice donor site probably null
R3899:Kcnq3 UTSW 15 65,902,372 (GRCm39) missense probably benign 0.01
R4096:Kcnq3 UTSW 15 66,157,664 (GRCm39) splice site probably null
R4421:Kcnq3 UTSW 15 65,867,360 (GRCm39) missense probably benign 0.01
R4504:Kcnq3 UTSW 15 65,867,191 (GRCm39) nonsense probably null
R4505:Kcnq3 UTSW 15 65,867,191 (GRCm39) nonsense probably null
R4571:Kcnq3 UTSW 15 65,902,461 (GRCm39) missense probably damaging 1.00
R4577:Kcnq3 UTSW 15 66,158,063 (GRCm39) missense unknown
R4900:Kcnq3 UTSW 15 65,867,259 (GRCm39) missense probably damaging 1.00
R4981:Kcnq3 UTSW 15 65,903,254 (GRCm39) missense possibly damaging 0.84
R5015:Kcnq3 UTSW 15 65,876,612 (GRCm39) missense probably damaging 1.00
R5049:Kcnq3 UTSW 15 66,157,746 (GRCm39) missense probably benign 0.17
R5245:Kcnq3 UTSW 15 65,903,284 (GRCm39) missense possibly damaging 0.89
R5334:Kcnq3 UTSW 15 65,897,073 (GRCm39) missense probably damaging 1.00
R5528:Kcnq3 UTSW 15 65,897,027 (GRCm39) missense probably damaging 0.97
R5532:Kcnq3 UTSW 15 65,869,622 (GRCm39) nonsense probably null
R5630:Kcnq3 UTSW 15 65,896,971 (GRCm39) missense probably damaging 1.00
R5639:Kcnq3 UTSW 15 65,869,599 (GRCm39) missense probably damaging 0.96
R5936:Kcnq3 UTSW 15 65,871,959 (GRCm39) missense probably damaging 1.00
R6306:Kcnq3 UTSW 15 65,876,643 (GRCm39) missense probably benign 0.40
R6576:Kcnq3 UTSW 15 65,897,027 (GRCm39) missense possibly damaging 0.52
R7006:Kcnq3 UTSW 15 65,892,165 (GRCm39) nonsense probably null
R7403:Kcnq3 UTSW 15 65,874,066 (GRCm39) missense probably damaging 1.00
R8140:Kcnq3 UTSW 15 65,867,390 (GRCm39) missense probably damaging 1.00
R9189:Kcnq3 UTSW 15 65,867,510 (GRCm39) missense probably damaging 1.00
RF045:Kcnq3 UTSW 15 66,158,033 (GRCm39) small deletion probably benign
X0060:Kcnq3 UTSW 15 65,903,235 (GRCm39) missense probably damaging 1.00
Z1177:Kcnq3 UTSW 15 65,867,301 (GRCm39) missense possibly damaging 0.75
Predicted Primers PCR Primer
(F):5'- ATAGTAGCCTCCTGCACTGGGAAC -3'
(R):5'- GTCCACACTTCCTCAGAGGACAATG -3'

Sequencing Primer
(F):5'- gagagagggaaaggtgagaag -3'
(R):5'- CTTCCTCAGAGGACAATGTGATTC -3'
Posted On 2014-05-23