Incidental Mutation 'R5339:Chrna7'
Institutional Source Beutler Lab
Gene Symbol Chrna7
Ensembl Gene ENSMUSG00000030525
Gene Namecholinergic receptor, nicotinic, alpha polypeptide 7
Synonymsalpha7-nAChR, alpha7, Acra7, alpha7 nicotinic receptor
MMRRC Submission 042918-MU
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R5339 (G1)
Quality Score225
Status Validated
Chromosomal Location63098692-63212569 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to G at 63099307 bp
Amino Acid Change Serine to Proline at position 476 (S476P)
Ref Sequence ENSEMBL: ENSMUSP00000032738 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000032738]
Predicted Effect probably damaging
Transcript: ENSMUST00000032738
AA Change: S476P

PolyPhen 2 Score 0.997 (Sensitivity: 0.41; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000032738
Gene: ENSMUSG00000030525
AA Change: S476P

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
Meta Mutation Damage Score 0.5663 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.3%
Validation Efficiency 97% (57/59)
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: 50 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgb C T 10: 10,442,606 G158E probably damaging Het
Adgrl2 C T 3: 148,817,844 R1256H probably benign Het
C3 C A 17: 57,224,308 V329F probably damaging Het
Ccdc50 C T 16: 27,417,305 H130Y probably damaging Het
Crtc1 A T 8: 70,397,733 probably benign Het
Dnah12 A G 14: 26,814,537 T2137A possibly damaging Het
Ehd3 G A 17: 73,828,207 M359I possibly damaging Het
Fastkd3 G A 13: 68,590,164 G611R probably damaging Het
Foxa2 T A 2: 148,044,434 S154C probably damaging Het
Gfm2 T C 13: 97,175,040 I733T probably benign Het
Gm1968 T C 16: 29,962,259 noncoding transcript Het
Gmfg-ps T C 6: 4,893,401 noncoding transcript Het
Gzmd A T 14: 56,130,683 N106K possibly damaging Het
Huwe1 AGAGGAGGAGGAGGAGGA AGAGGAGGAGGAGGA X: 151,907,048 probably benign Het
Ipo5 T C 14: 120,943,710 W883R probably damaging Het
Itpr1 T A 6: 108,393,961 V1063D probably damaging Het
Kansl3 A C 1: 36,367,721 probably benign Het
Klkb1 C A 8: 45,270,711 V556F possibly damaging Het
Krtap14 C A 16: 88,825,859 R77S probably benign Het
Leng8 T A 7: 4,145,286 Y686N possibly damaging Het
Mctp1 C A 13: 76,825,706 probably benign Het
Moxd2 T C 6: 40,885,420 Y155C probably damaging Het
Ofcc1 A G 13: 40,087,845 V729A probably benign Het
Olfr1361 G A 13: 21,659,234 L30F probably benign Het
Olfr728 C A 14: 50,140,302 M112I probably damaging Het
Olfr845 G A 9: 19,339,159 G233E possibly damaging Het
Olfr948 A T 9: 39,319,303 F104I possibly damaging Het
Olfr970 T A 9: 39,819,933 M98K probably damaging Het
Pdia4 C T 6: 47,796,685 A577T possibly damaging Het
Pex5 A T 6: 124,398,004 S629T probably benign Het
Pnpla7 T C 2: 25,002,937 S146P probably benign Het
Prune2 G A 19: 17,120,872 E1247K probably damaging Het
Reg3a A G 6: 78,383,539 probably null Het
Snx8 G A 5: 140,358,150 R78C probably damaging Het
Sstr5 T C 17: 25,491,199 E352G probably benign Het
Svep1 T C 4: 58,121,892 Y767C possibly damaging Het
Tbx15 G A 3: 99,316,284 V263M possibly damaging Het
Tdrd9 T C 12: 112,027,122 Y695H probably damaging Het
Tep1 A T 14: 50,844,574 L1174Q probably damaging Het
Tg T A 15: 66,678,093 Y235N probably damaging Het
Tha1 C A 11: 117,871,082 R111L possibly damaging Het
Trim17 C T 11: 58,954,510 probably null Het
Trim72 A G 7: 128,010,333 T436A probably benign Het
Uba7 C T 9: 107,978,866 A480V probably damaging Het
Ublcp1 A T 11: 44,455,608 S313T probably benign Het
Ubqlnl A G 7: 104,149,765 V175A probably benign Het
Vps26a A G 10: 62,458,967 L276P probably damaging Het
Zdhhc21 C T 4: 82,838,313 G110S probably damaging Het
Zfp236 T C 18: 82,624,366 E1133G probably damaging Het
Zfp800 A T 6: 28,256,473 S39T probably 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
IGL02400:Chrna7 APN 7 63099322 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
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
Predicted Primers PCR Primer

Sequencing Primer
Posted On2016-08-04