Incidental Mutation 'IGL02400:Chrna7'
ID291856
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Chrna7
Ensembl Gene ENSMUSG00000030525
Gene Namecholinergic receptor, nicotinic, alpha polypeptide 7
Synonymsalpha7-nAChR, alpha7, Acra7, alpha7 nicotinic receptor
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #IGL02400
Quality Score
Status
Chromosome7
Chromosomal Location63098692-63212569 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to G at 63099322 bp
ZygosityHeterozygous
Amino Acid Change Cysteine to Arginine at position 471 (C471R)
Ref Sequence ENSEMBL: ENSMUSP00000032738 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000032738]
Predicted Effect probably damaging
Transcript: ENSMUST00000032738
AA Change: C471R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000032738
Gene: ENSMUSG00000030525
AA Change: C471R

DomainStartEndE-ValueType
low complexity region 10 17 N/A INTRINSIC
Pfam:Neur_chan_LBD 26 230 1e-75 PFAM
Pfam:Neur_chan_memb 237 487 3.6e-63 PFAM
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The nicotinic acetylcholine receptors (nAChRs) are members of a superfamily of ligand-gated ion channels that mediate fast signal transmission at synapses. The nAChRs are thought to be hetero-pentamers composed of homologous subunits. The proposed structure for each subunit is a conserved N-terminal extracellular domain followed by three conserved transmembrane domains, a variable cytoplasmic loop, a fourth conserved transmembrane domain, and a short C-terminal extracellular region. The protein encoded by this gene forms a homo-oligomeric channel, displays marked permeability to calcium ions and is a major component of brain nicotinic receptors that are blocked by, and highly sensitive to, alpha-bungarotoxin. Once this receptor binds acetylcholine, it undergoes an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane. This gene is located in a region identified as a major susceptibility locus for juvenile myoclonic epilepsy and a chromosomal location involved in the genetic transmission of schizophrenia. An evolutionarily recent partial duplication event in this region results in a hybrid containing sequence from this gene and a novel FAM7A gene. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2012]
PHENOTYPE: Nullizygous mice lack hippocampal fast nicotinic currents but show nicotine-induced seizures as well as altered anxiety behavior, fertility defects, airway basal cell hyperplasia. and higher TNF sythesis when endotoxemic. Newborns homozygous for a knock-in allele die with increased neuron apoptosis. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 28 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2610028H24Rik A G 10: 76,454,810 I128V possibly damaging Het
Arfgef3 G T 10: 18,646,257 Q674K probably damaging Het
Atp6v0a2 T A 5: 124,721,785 N851K probably benign Het
Csgalnact1 C A 8: 68,401,492 G219V probably damaging Het
Egflam T A 15: 7,247,053 K544M probably benign Het
Erbb3 A C 10: 128,579,524 N385K probably benign Het
Fancm A G 12: 65,113,815 R1388G probably damaging Het
Gm10720 C A 9: 3,016,900 probably null Het
Gm20489 A T X: 101,263,338 N328K possibly damaging Het
Gm5828 G T 1: 16,769,818 noncoding transcript Het
Gnaq T C 19: 16,316,128 Y145H probably damaging Het
Itgbl1 A G 14: 123,846,526 D148G probably damaging Het
Myc T G 15: 61,989,911 probably benign Het
Olfr1033 A T 2: 86,042,076 I254F probably benign Het
Olfr801 A G 10: 129,669,883 V212A probably damaging Het
Olfr975 A G 9: 39,950,339 V144A probably benign Het
Padi3 T G 4: 140,788,868 K567T probably benign Het
Pi4ka T C 16: 17,293,884 T1576A probably damaging Het
Pikfyve A G 1: 65,252,569 R1316G probably damaging Het
Ryr2 A G 13: 11,605,244 probably benign Het
Sash1 G A 10: 8,733,647 R713* probably null Het
Tmem214 G A 5: 30,872,746 A296T probably benign Het
Tnfsf4 T A 1: 161,395,705 C42S possibly damaging Het
Tpp1 A G 7: 105,747,031 I487T possibly damaging Het
Trim43a T A 9: 88,582,112 N25K probably benign Het
Tuft1 T C 3: 94,635,502 probably benign Het
Usp46 T C 5: 74,037,052 H26R probably benign Het
Zfp560 A T 9: 20,350,600 I85N possibly damaging Het
Other mutations in Chrna7
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01776:Chrna7 APN 7 63099519 missense probably benign 0.01
IGL01999:Chrna7 APN 7 63103791 missense probably damaging 1.00
IGL02016:Chrna7 APN 7 63103835 missense probably damaging 1.00
IGL02388:Chrna7 APN 7 63107691 missense probably damaging 1.00
IGL02458:Chrna7 APN 7 63106094 missense probably damaging 1.00
IGL03039:Chrna7 APN 7 63148592 missense probably damaging 1.00
inflation UTSW 7 63148601 missense probably damaging 1.00
thaler UTSW 7 63106027 missense probably damaging 1.00
R0034:Chrna7 UTSW 7 63148606 missense possibly damaging 0.79
R0631:Chrna7 UTSW 7 63099643 missense probably benign 0.00
R1666:Chrna7 UTSW 7 63212142 missense possibly damaging 0.70
R1703:Chrna7 UTSW 7 63099507 missense probably damaging 0.99
R1763:Chrna7 UTSW 7 63099252 missense probably benign 0.05
R1974:Chrna7 UTSW 7 63099286 missense probably damaging 1.00
R2294:Chrna7 UTSW 7 63110424 missense probably benign 0.11
R2393:Chrna7 UTSW 7 63099246 missense probably damaging 1.00
R4598:Chrna7 UTSW 7 63103790 missense probably damaging 1.00
R4599:Chrna7 UTSW 7 63103790 missense probably damaging 1.00
R4842:Chrna7 UTSW 7 63212448 missense probably benign 0.05
R5143:Chrna7 UTSW 7 63106147 missense probably damaging 1.00
R5310:Chrna7 UTSW 7 63106057 missense probably damaging 1.00
R5339:Chrna7 UTSW 7 63099307 missense probably damaging 1.00
R5516:Chrna7 UTSW 7 63099298 missense probably damaging 0.98
R5807:Chrna7 UTSW 7 63148601 missense probably damaging 1.00
R6501:Chrna7 UTSW 7 63106115 missense probably damaging 1.00
R6918:Chrna7 UTSW 7 63159551 missense probably benign 0.03
R7000:Chrna7 UTSW 7 63106039 missense probably damaging 1.00
R7189:Chrna7 UTSW 7 63106027 missense probably damaging 1.00
R7483:Chrna7 UTSW 7 63104990 missense probably damaging 1.00
Posted On2015-04-16