Incidental Mutation 'R1168:Chrna4'
ID 101260
Institutional Source Beutler Lab
Gene Symbol Chrna4
Ensembl Gene ENSMUSG00000027577
Gene Name cholinergic receptor, nicotinic, alpha polypeptide 4
Synonyms a4 nicotinic receptor, Acra-4, alpha4-nAChR, Acra4, alpha4 nAChR
MMRRC Submission 039241-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.172) question?
Stock # R1168 (G1)
Quality Score 186
Status Not validated
Chromosome 2
Chromosomal Location 180664104-180685339 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 180675931 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Methionine to Leucine at position 67 (M67L)
Ref Sequence ENSEMBL: ENSMUSP00000123043 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067120] [ENSMUST00000108851] [ENSMUST00000124400]
AlphaFold O70174
Predicted Effect probably benign
Transcript: ENSMUST00000067120
AA Change: M84L

PolyPhen 2 Score 0.435 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000066338
Gene: ENSMUSG00000027577
AA Change: M84L

DomainStartEndE-ValueType
signal peptide 1 30 N/A INTRINSIC
Pfam:Neur_chan_LBD 39 245 1.4e-76 PFAM
Pfam:Neur_chan_memb 252 620 1.9e-107 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000108851
AA Change: M84L

PolyPhen 2 Score 0.435 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000104479
Gene: ENSMUSG00000027577
AA Change: M84L

DomainStartEndE-ValueType
signal peptide 1 30 N/A INTRINSIC
Pfam:Neur_chan_LBD 39 245 8.4e-79 PFAM
Pfam:Neur_chan_memb 252 620 3.3e-112 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000124400
AA Change: M67L

PolyPhen 2 Score 0.606 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000123043
Gene: ENSMUSG00000027577
AA Change: M67L

DomainStartEndE-ValueType
Pfam:Neur_chan_LBD 22 78 3.6e-19 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000135766
SMART Domains Protein: ENSMUSP00000125724
Gene: ENSMUSG00000027577

DomainStartEndE-ValueType
signal peptide 1 30 N/A INTRINSIC
Pfam:Neur_chan_LBD 39 130 9.2e-37 PFAM
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.1%
  • 10x: 95.2%
  • 20x: 88.8%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a nicotinic acetylcholine receptor, which belongs to a superfamily of ligand-gated ion channels that play a role in fast signal transmission at synapses. These pentameric receptors can bind acetylcholine, which causes an extensive change in conformation that leads to the opening of an ion-conducting channel across the plasma membrane. This protein is an integral membrane receptor subunit that can interact with either nAChR beta-2 or nAChR beta-4 to form a functional receptor. Mutations in this gene cause nocturnal frontal lobe epilepsy type 1. Polymorphisms in this gene that provide protection against nicotine addiction have been described. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2012]
PHENOTYPE: Nullizygous mice may show reduced chemically-elicited analgesia, susceptibility to seizures, increased anxiety, and altered behavioral responses to nicotine or a new environment. Homozygotes for any of several knock-in alleles exhibit altered nervous system physiology and/or sensitivity to nicotine. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 80 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110002E22Rik T C 3: 137,773,661 (GRCm39) V950A probably benign Het
Adgrb3 A T 1: 25,865,280 (GRCm39) S188T probably benign Het
Ahr A T 12: 35,554,531 (GRCm39) N529K possibly damaging Het
Akr1c21 A G 13: 4,633,836 (GRCm39) N302D probably benign Het
Aldh8a1 T A 10: 21,260,530 (GRCm39) probably null Het
Alpk3 A T 7: 80,753,105 (GRCm39) K1554M probably damaging Het
Arhgef5 T A 6: 43,250,330 (GRCm39) H360Q probably benign Het
Cacna1a A G 8: 85,306,130 (GRCm39) I1293V probably damaging Het
Cacna2d4 C T 6: 119,284,247 (GRCm39) R745W probably damaging Het
Cd200r4 T A 16: 44,653,307 (GRCm39) W72R probably damaging Het
Ces2e A T 8: 105,653,646 (GRCm39) D28V possibly damaging Het
Cfap20dc T C 14: 8,442,939 (GRCm38) N610S probably benign Het
Cfap45 T C 1: 172,373,264 (GRCm39) Y534H probably damaging Het
Cfap54 A T 10: 92,773,782 (GRCm39) C87S probably damaging Het
Chmp7 C T 14: 69,956,899 (GRCm39) M336I probably benign Het
Cplx3 G A 9: 57,515,595 (GRCm39) R427C probably benign Het
Cts7 T A 13: 61,501,631 (GRCm39) N290Y probably damaging Het
Enpp6 A T 8: 47,483,489 (GRCm39) M94L probably damaging Het
Fam83d C T 2: 158,610,443 (GRCm39) A137V probably benign Het
Foxd2 C T 4: 114,764,875 (GRCm39) A382T possibly damaging Het
Galnt11 T G 5: 25,455,244 (GRCm39) S193R probably damaging Het
Gapvd1 A T 2: 34,594,481 (GRCm39) D856E probably damaging Het
Gclm T A 3: 122,056,337 (GRCm39) H86Q possibly damaging Het
Gipc2 T C 3: 151,813,634 (GRCm39) T220A probably benign Het
Gm12185 G T 11: 48,806,182 (GRCm39) N336K possibly damaging Het
Gm5431 A T 11: 48,786,191 (GRCm39) S61R probably benign Het
Gorasp2 C T 2: 70,518,744 (GRCm39) P260S probably damaging Het
H2-M10.6 A G 17: 37,124,052 (GRCm39) Q172R probably benign Het
Ibsp A G 5: 104,450,018 (GRCm39) I6V probably damaging Het
Iqsec1 T C 6: 90,666,658 (GRCm39) Y593C probably damaging Het
Irag1 T C 7: 110,495,138 (GRCm39) K429R probably damaging Het
Itln1 G T 1: 171,359,119 (GRCm39) Y61* probably null Het
Kif21a G A 15: 90,877,956 (GRCm39) T284I probably damaging Het
Kif3a G A 11: 53,489,139 (GRCm39) G621R probably damaging Het
Klb A G 5: 65,536,317 (GRCm39) Y549C probably damaging Het
Lrrc37 T C 11: 103,509,776 (GRCm39) probably benign Het
Map4 T C 9: 109,864,032 (GRCm39) V419A probably benign Het
Mastl A T 2: 23,023,144 (GRCm39) D526E probably benign Het
Mtif2 A G 11: 29,486,914 (GRCm39) D308G probably benign Het
Ncald A G 15: 37,397,578 (GRCm39) F34S probably damaging Het
Ndc1 A G 4: 107,253,009 (GRCm39) T593A probably benign Het
Ndst3 C T 3: 123,400,617 (GRCm39) V15I probably benign Het
Nup214 A G 2: 31,915,313 (GRCm39) N1166D probably benign Het
Or1a1 A G 11: 74,087,247 (GRCm39) H306R probably benign Het
Or2ad1 A G 13: 21,326,787 (GRCm39) S147P probably benign Het
Or4a68 G A 2: 89,270,213 (GRCm39) Q137* probably null Het
Or5m8 A T 2: 85,823,028 (GRCm39) Y289F probably damaging Het
Pcdhb8 T C 18: 37,489,780 (GRCm39) I486T probably benign Het
Pdzrn4 A T 15: 92,668,152 (GRCm39) Y768F probably benign Het
Pgf A G 12: 85,218,541 (GRCm39) S70P probably benign Het
Plcl2 G A 17: 50,914,100 (GRCm39) A370T possibly damaging Het
Pnkp T A 7: 44,511,961 (GRCm39) W115R probably benign Het
Ppp1r16a C T 15: 76,577,869 (GRCm39) Q328* probably null Het
Prag1 A G 8: 36,613,799 (GRCm39) E1117G probably damaging Het
Prr12 T A 7: 44,678,471 (GRCm39) Q1919L unknown Het
Ret G T 6: 118,150,519 (GRCm39) H666N possibly damaging Het
Rfwd3 C T 8: 112,014,874 (GRCm39) R326Q probably damaging Het
Robo2 C T 16: 73,745,184 (GRCm39) G864S probably damaging Het
Rpa2 T G 4: 132,499,171 (GRCm39) I80S probably damaging Het
Ryk A T 9: 102,775,674 (GRCm39) D428V probably damaging Het
Slc29a1 A T 17: 45,901,204 (GRCm39) N30K probably damaging Het
Stbd1 A G 5: 92,752,795 (GRCm39) N95S probably benign Het
Tbc1d22a A G 15: 86,176,335 (GRCm39) E212G probably benign Het
Tex14 A G 11: 87,427,568 (GRCm39) T7A probably benign Het
Tmc8 T C 11: 117,683,389 (GRCm39) V648A possibly damaging Het
Tmem132b G T 5: 125,864,083 (GRCm39) V730F probably damaging Het
Tmub2 G A 11: 102,178,196 (GRCm39) G33D possibly damaging Het
Trak1 G A 9: 121,269,745 (GRCm39) D124N probably damaging Het
Ttc28 A T 5: 111,378,977 (GRCm39) Y1154F probably damaging Het
Ttn T C 2: 76,739,713 (GRCm39) T3609A probably benign Het
Tulp2 A G 7: 45,167,266 (GRCm39) T99A probably benign Het
Ugt2a2 A T 5: 87,613,427 (GRCm39) probably null Het
Ush2a G A 1: 188,410,608 (GRCm39) V2419I probably benign Het
Vill C A 9: 118,899,389 (GRCm39) P343Q probably damaging Het
Vmn2r66 T A 7: 84,656,062 (GRCm39) H318L possibly damaging Het
Wdr3 A C 3: 100,049,535 (GRCm39) N800K probably benign Het
Wdr93 A G 7: 79,398,922 (GRCm39) K19E probably damaging Het
Wrn A G 8: 33,806,436 (GRCm39) S333P probably damaging Het
Zfp418 T C 7: 7,185,500 (GRCm39) S488P possibly damaging Het
Zfp804a A G 2: 82,087,041 (GRCm39) E290G probably benign Het
Other mutations in Chrna4
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00815:Chrna4 APN 2 180,671,184 (GRCm39) missense probably benign 0.09
IGL00914:Chrna4 APN 2 180,670,824 (GRCm39) missense probably damaging 1.00
IGL01511:Chrna4 APN 2 180,670,461 (GRCm39) missense probably benign 0.13
IGL02517:Chrna4 APN 2 180,670,926 (GRCm39) missense probably benign 0.01
IGL02715:Chrna4 APN 2 180,671,374 (GRCm39) unclassified probably benign
R1475:Chrna4 UTSW 2 180,671,172 (GRCm39) missense probably benign 0.44
R1572:Chrna4 UTSW 2 180,671,100 (GRCm39) missense possibly damaging 0.95
R4428:Chrna4 UTSW 2 180,670,413 (GRCm39) missense probably damaging 0.99
R4429:Chrna4 UTSW 2 180,670,413 (GRCm39) missense probably damaging 0.99
R4431:Chrna4 UTSW 2 180,670,413 (GRCm39) missense probably damaging 0.99
R4494:Chrna4 UTSW 2 180,670,281 (GRCm39) missense probably damaging 0.98
R4664:Chrna4 UTSW 2 180,679,286 (GRCm39) missense probably damaging 1.00
R4666:Chrna4 UTSW 2 180,679,286 (GRCm39) missense probably damaging 1.00
R4931:Chrna4 UTSW 2 180,670,665 (GRCm39) missense probably benign 0.00
R5144:Chrna4 UTSW 2 180,666,623 (GRCm39) missense probably damaging 1.00
R5556:Chrna4 UTSW 2 180,675,773 (GRCm39) missense possibly damaging 0.94
R5633:Chrna4 UTSW 2 180,671,253 (GRCm39) missense probably damaging 1.00
R5889:Chrna4 UTSW 2 180,670,451 (GRCm39) missense probably damaging 1.00
R6056:Chrna4 UTSW 2 180,671,235 (GRCm39) missense probably damaging 1.00
R6120:Chrna4 UTSW 2 180,666,599 (GRCm39) missense probably damaging 1.00
R7030:Chrna4 UTSW 2 180,671,334 (GRCm39) missense probably damaging 1.00
R7352:Chrna4 UTSW 2 180,679,267 (GRCm39) missense probably damaging 0.97
R7694:Chrna4 UTSW 2 180,660,386 (GRCm39) missense
R7945:Chrna4 UTSW 2 180,670,454 (GRCm39) missense probably benign 0.04
R8075:Chrna4 UTSW 2 180,680,859 (GRCm39) missense unknown
R8706:Chrna4 UTSW 2 180,679,307 (GRCm39) missense probably damaging 1.00
R9091:Chrna4 UTSW 2 180,670,643 (GRCm39) missense possibly damaging 0.79
R9138:Chrna4 UTSW 2 180,670,775 (GRCm39) missense probably damaging 0.97
R9154:Chrna4 UTSW 2 180,670,602 (GRCm39) missense probably damaging 0.99
R9270:Chrna4 UTSW 2 180,670,643 (GRCm39) missense possibly damaging 0.79
R9598:Chrna4 UTSW 2 180,679,264 (GRCm39) missense probably damaging 1.00
Z1177:Chrna4 UTSW 2 180,670,078 (GRCm39) missense possibly damaging 0.80
Z1177:Chrna4 UTSW 2 180,666,606 (GRCm39) missense probably damaging 1.00
Predicted Primers
Posted On 2014-01-15