Incidental Mutation 'R5633:Chrna4'
ID 439964
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 043284-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.172) question?
Stock # R5633 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 180664104-180685339 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 180671253 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Alanine at position 168 (T168A)
Ref Sequence ENSEMBL: ENSMUSP00000104479 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067120] [ENSMUST00000108851] [ENSMUST00000124400]
AlphaFold O70174
Predicted Effect probably damaging
Transcript: ENSMUST00000067120
AA Change: T168A

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000066338
Gene: ENSMUSG00000027577
AA Change: T168A

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: T168A

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000104479
Gene: ENSMUSG00000027577
AA Change: T168A

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 probably benign
Transcript: ENSMUST00000124400
SMART Domains Protein: ENSMUSP00000123043
Gene: ENSMUSG00000027577

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
Predicted Effect probably benign
Transcript: ENSMUST00000198922
Meta Mutation Damage Score 0.3425 question?
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.8%
  • 10x: 97.6%
  • 20x: 96.0%
Validation Efficiency 98% (55/56)
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
Aadacl4 T A 4: 144,344,598 (GRCm39) C125S probably benign Het
Abcb8 T C 5: 24,608,107 (GRCm39) L382P probably damaging Het
Acot3 A G 12: 84,105,724 (GRCm39) probably null Het
Acsl6 A T 11: 54,228,015 (GRCm39) Q345L probably benign Het
Adcy8 A G 15: 64,571,134 (GRCm39) S1170P probably damaging Het
Ankrd28 T G 14: 31,457,022 (GRCm39) D182A probably damaging Het
B3galt5 A T 16: 96,116,709 (GRCm39) H114L probably benign Het
Bcas2 T A 3: 103,085,740 (GRCm39) Y207* probably null Het
Best1 A G 19: 9,969,467 (GRCm39) L197P probably benign Het
Chil6 C A 3: 106,296,068 (GRCm39) C389F probably damaging Het
Ckmt1 C G 2: 121,194,110 (GRCm39) probably benign Het
Dhcr7 T C 7: 143,401,160 (GRCm39) L441P probably damaging Het
Dmtn T C 14: 70,842,419 (GRCm39) M365V probably benign Het
Dmxl1 T A 18: 50,010,764 (GRCm39) S974T probably damaging Het
Dnajb13 T C 7: 100,156,626 (GRCm39) D150G probably benign Het
Eef2k C A 7: 120,472,513 (GRCm39) probably benign Het
Elp2 T A 18: 24,748,267 (GRCm39) V213E probably damaging Het
Fbxo43 A T 15: 36,162,241 (GRCm39) probably null Het
Gm11559 C A 11: 99,755,412 (GRCm39) C20* probably null Het
Gnb2 T C 5: 137,527,454 (GRCm39) I213V probably benign Het
Gnb5 C T 9: 75,251,796 (GRCm39) T306I probably damaging Het
Ica1 A T 6: 8,667,257 (GRCm39) I303N possibly damaging Het
Idh1 A G 1: 65,204,295 (GRCm39) Y272H probably damaging Het
Ikzf2 G A 1: 69,578,256 (GRCm39) Q273* probably null Het
Itpkb A T 1: 180,154,790 (GRCm39) ⇒1 probably benign Het
Kntc1 C T 5: 123,957,120 (GRCm39) T2143I probably damaging Het
Lin9 T A 1: 180,496,763 (GRCm39) L351I probably benign Het
Lmbrd1 C A 1: 24,787,943 (GRCm39) D464E possibly damaging Het
Med13 A G 11: 86,169,757 (GRCm39) probably benign Het
Mn1 T C 5: 111,568,192 (GRCm39) F721L possibly damaging Het
Myo9a T A 9: 59,775,467 (GRCm39) L1026Q possibly damaging Het
Or6c204 A T 10: 129,022,718 (GRCm39) F191I probably benign Het
P4htm A C 9: 108,456,922 (GRCm39) D428E probably damaging Het
Parp8 C T 13: 117,013,116 (GRCm39) R602H probably damaging Het
Pkd2 T A 5: 104,646,372 (GRCm39) S726R probably damaging Het
Pla2g6 A T 15: 79,183,342 (GRCm39) I495N possibly damaging Het
Psmd5 A G 2: 34,746,500 (GRCm39) I359T probably benign Het
Rassf6 T C 5: 90,751,977 (GRCm39) H292R possibly damaging Het
Rnf145 T C 11: 44,450,915 (GRCm39) I413T probably damaging Het
Rpn2 T A 2: 157,125,516 (GRCm39) V9D possibly damaging Het
Rpp30 T C 19: 36,064,390 (GRCm39) L57P probably damaging Het
Slc41a1 A G 1: 131,774,325 (GRCm39) H464R possibly damaging Het
Slc47a1 G T 11: 61,260,087 (GRCm39) P163Q probably damaging Het
Smc4 T A 3: 68,915,443 (GRCm39) I165K probably damaging Het
Stra6l T A 4: 45,881,455 (GRCm39) I439K probably benign Het
Syt9 C T 7: 107,024,503 (GRCm39) T132I probably damaging Het
Timd6 C T 11: 46,465,433 (GRCm39) S9L unknown Het
Trpm2 T C 10: 77,774,187 (GRCm39) I471V possibly damaging Het
Uap1l1 A G 2: 25,253,361 (GRCm39) M358T probably benign Het
Vmn1r91 A T 7: 19,835,870 (GRCm39) H263L possibly damaging Het
Zfp407 T C 18: 84,579,169 (GRCm39) D648G probably benign Het
Zpbp2 T C 11: 98,445,584 (GRCm39) I150T probably 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
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
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'- GTGTAGAACAGTGGCAGTCG -3'
(R):5'- CCACAGTAATGTTCGTGGGTG -3'

Sequencing Primer
(F):5'- GGATAGATCTCGGCACAGCATTC -3'
(R):5'- GTGGTGTATGGAGGGGCAGAC -3'
Posted On 2016-11-08