Incidental Mutation 'R4429:Chrna4'
ID 328308
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 041699-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.172) question?
Stock # R4429 (G1)
Quality Score 225
Status Not validated
Chromosome 2
Chromosomal Location 180664104-180685339 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 180670413 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 448 (S448P)
Ref Sequence ENSEMBL: ENSMUSP00000104479 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067120] [ENSMUST00000108851]
AlphaFold O70174
Predicted Effect probably damaging
Transcript: ENSMUST00000067120
AA Change: S448P

PolyPhen 2 Score 0.984 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000066338
Gene: ENSMUSG00000027577
AA Change: S448P

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 damaging
Transcript: ENSMUST00000108851
AA Change: S448P

PolyPhen 2 Score 0.991 (Sensitivity: 0.71; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000104479
Gene: ENSMUSG00000027577
AA Change: S448P

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 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
Predicted Effect probably benign
Transcript: ENSMUST00000198922
Meta Mutation Damage Score 0.1237 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.5%
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: 52 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
0610040J01Rik G T 5: 64,056,182 (GRCm39) probably benign Het
Abca5 T C 11: 110,202,236 (GRCm39) T390A probably benign Het
Ahcyl2 T G 6: 29,894,874 (GRCm39) V452G probably damaging Het
Ano4 T A 10: 88,828,804 (GRCm39) N545I probably damaging Het
Bag4 C T 8: 26,259,516 (GRCm39) A228T probably benign Het
Catip T A 1: 74,407,891 (GRCm39) probably benign Het
Cldn8 A C 16: 88,359,619 (GRCm39) M102R probably damaging Het
Cnpy3 T A 17: 47,058,070 (GRCm39) Q111L probably benign Het
Dnah8 A G 17: 30,971,120 (GRCm39) N2725D probably damaging Het
Dock8 T C 19: 25,042,754 (GRCm39) V112A probably benign Het
Ephb3 G A 16: 21,033,213 (GRCm39) E66K probably damaging Het
Gm6594 T A 17: 82,846,923 (GRCm39) D79E probably benign Het
Gtf2e2 T A 8: 34,242,521 (GRCm39) Y74* probably null Het
Hacd4 A T 4: 88,353,184 (GRCm39) F103I possibly damaging Het
Hap1 T C 11: 100,245,098 (GRCm39) T38A probably benign Het
Havcr2 T A 11: 46,347,387 (GRCm39) D72E probably damaging Het
Iqcg G A 16: 32,839,860 (GRCm39) T362I probably benign Het
Lect2 C T 13: 56,693,538 (GRCm39) probably null Het
Lemd3 T C 10: 120,813,893 (GRCm39) T447A probably benign Het
Lrrc72 T C 12: 36,258,623 (GRCm39) N78S probably damaging Het
Map3k14 A G 11: 103,118,410 (GRCm39) L592P probably damaging Het
Meioc T C 11: 102,566,546 (GRCm39) Y721H probably damaging Het
Mrps10 T A 17: 47,689,124 (GRCm39) probably null Het
Myo5c A G 9: 75,201,283 (GRCm39) Y1406C probably damaging Het
Myo7a T C 7: 97,702,395 (GRCm39) Y2098C probably damaging Het
Nol9 C T 4: 152,125,631 (GRCm39) T194I probably damaging Het
Nox3 G A 17: 3,733,233 (GRCm39) T206I probably benign Het
Nsd2 T G 5: 34,000,546 (GRCm39) M21R probably damaging Het
Pcdh9 T C 14: 94,124,820 (GRCm39) N327S probably damaging Het
Pclo T G 5: 14,728,114 (GRCm39) probably benign Het
Pparg T A 6: 115,416,984 (GRCm39) M59K probably benign Het
Prag1 A G 8: 36,613,796 (GRCm39) K1116R probably damaging Het
Rhbdf1 C T 11: 32,163,369 (GRCm39) E368K probably benign Het
Rita1 A G 5: 120,747,626 (GRCm39) V224A probably damaging Het
Rsph6a T A 7: 18,807,988 (GRCm39) W384R probably damaging Het
Scn1a A T 2: 66,181,329 (GRCm39) Y65N possibly damaging Het
Serpina5 C A 12: 104,069,665 (GRCm39) F292L probably benign Het
Sf3b3 A C 8: 111,552,750 (GRCm39) L511V probably benign Het
Siglecg C T 7: 43,067,350 (GRCm39) P639L possibly damaging Het
Slc12a3 A T 8: 95,069,713 (GRCm39) I541F probably damaging Het
Slco6d1 T C 1: 98,424,091 (GRCm39) V581A possibly damaging Het
Sptbn2 T C 19: 4,788,383 (GRCm39) Y1121H probably damaging Het
Sytl5 A T X: 9,826,262 (GRCm39) N412Y probably damaging Het
Timm29 G C 9: 21,504,775 (GRCm39) A148P probably damaging Het
Tmem181a T A 17: 6,346,061 (GRCm39) L185H probably damaging Het
Tmem67 T A 4: 12,051,473 (GRCm39) N785I possibly damaging Het
Trhde A T 10: 114,339,028 (GRCm39) L594Q probably damaging Het
Uba6 C T 5: 86,268,406 (GRCm39) V941I probably damaging Het
Vmn1r174 T C 7: 23,453,565 (GRCm39) V77A probably benign Het
Zfp661 A G 2: 127,420,628 (GRCm39) V57A probably damaging Het
Zfp867 C T 11: 59,355,863 (GRCm39) D64N possibly damaging Het
Zp3r T C 1: 130,519,128 (GRCm39) T294A possibly damaging 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
R1168:Chrna4 UTSW 2 180,675,931 (GRCm39) missense possibly damaging 0.61
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
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 PCR Primer
(F):5'- AGGGAAGCAGCTCCATCTTG -3'
(R):5'- CGGAGACTTATCGAATCCATGC -3'

Sequencing Primer
(F):5'- TCCATCTTGGGAAACACAGTACTGG -3'
(R):5'- CTTATCGAATCCATGCACAAGATGG -3'
Posted On 2015-07-07