Incidental Mutation 'R5516: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 043075-MU
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R5516 (G1)
Quality Score225
Status Validated
Chromosomal Location63098692-63212569 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to G at 63099298 bp
Amino Acid Change Threonine to Proline at position 479 (T479P)
Ref Sequence ENSEMBL: ENSMUSP00000032738 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000032738]
Predicted Effect probably damaging
Transcript: ENSMUST00000032738
AA Change: T479P

PolyPhen 2 Score 0.984 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000032738
Gene: ENSMUSG00000030525
AA Change: T479P

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 0.4683 question?
Coding Region Coverage
  • 1x: 98.5%
  • 3x: 97.4%
  • 10x: 95.2%
  • 20x: 90.4%
Validation Efficiency 97% (58/60)
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: 53 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgb T C 10: 10,431,157 K334R probably damaging Het
Aldh1l1 A T 6: 90,596,945 I809F possibly damaging Het
Bmp2k T A 5: 97,087,453 probably benign Het
C1qtnf9 T A 14: 60,779,749 C243S probably damaging Het
Cacna1c G A 6: 119,057,218 A146V probably damaging Het
Ccdc85c A G 12: 108,207,850 V353A probably damaging Het
Cd300ld2 G T 11: 115,012,444 probably benign Het
Cd320 A G 17: 33,848,047 Q170R possibly damaging Het
Cfap43 C T 19: 47,738,209 probably null Het
Chid1 A G 7: 141,496,146 S365P probably damaging Het
Clasp1 G T 1: 118,497,721 R35L probably damaging Het
Cluh G A 11: 74,660,444 R373H probably damaging Het
Cyp2b23 G A 7: 26,673,057 R378* probably null Het
Cyp2d9 T G 15: 82,454,327 N136K probably null Het
Efcab5 A T 11: 77,188,789 S44T possibly damaging Het
Esrrg A T 1: 188,198,730 L316F possibly damaging Het
Fam222a T C 5: 114,611,828 Y362H probably damaging Het
Fat3 A G 9: 15,998,709 V1999A probably damaging Het
Fes A T 7: 80,387,183 M51K probably damaging Het
Fmo3 T A 1: 162,954,426 K453* probably null Het
Galnt1 A G 18: 24,280,017 N458S probably benign Het
Gm13083 A G 4: 143,615,683 Q120R possibly damaging Het
Gm8888 T A 15: 96,766,974 noncoding transcript Het
Gpn2 G A 4: 133,584,879 probably null Het
Grm4 G A 17: 27,438,411 T464I probably benign Het
Insr T A 8: 3,155,764 K1342* probably null Het
Krt83 T A 15: 101,487,121 K365* probably null Het
Lfng T C 5: 140,613,263 L309P probably damaging Het
Lnpk T C 2: 74,547,788 probably benign Het
Lrrc8e A C 8: 4,235,818 D681A probably damaging Het
Lyst G A 13: 13,644,122 D1326N probably benign Het
Mmp27 A G 9: 7,579,062 R413G probably null Het
Nags C T 11: 102,145,947 Q121* probably null Het
Nectin1 A G 9: 43,803,793 E442G probably benign Het
Nek1 G C 8: 61,089,489 A729P probably benign Het
Olfr645 A G 7: 104,084,237 I281T possibly damaging Het
Pnp2 C T 14: 50,963,738 A189V probably benign Het
Ppm1m T A 9: 106,197,939 I136F probably damaging Het
Psg17 G T 7: 18,814,533 Q438K probably benign Het
Ptprk C T 10: 28,496,930 R726* probably null Het
Rab3gap2 A T 1: 185,235,487 Y163F probably benign Het
Scrib A T 15: 76,062,863 L627Q possibly damaging Het
Tcp1 A G 17: 12,924,334 K510R probably damaging Het
Tle4 A T 19: 14,454,889 I481N probably damaging Het
Tmem43 G T 6: 91,478,210 R56L possibly damaging Het
Trmt10a T C 3: 138,152,196 I168T possibly damaging Het
Trpv1 A T 11: 73,245,983 Y96F probably benign Het
Tshz3 C T 7: 36,770,350 T588I probably benign Het
Ugt2b38 A G 5: 87,411,843 F397L probably damaging Het
Vmn2r11 A G 5: 109,047,166 S765P probably damaging Het
Zfp668 A G 7: 127,867,146 F289L probably damaging Het
Zfp735 A G 11: 73,710,814 T195A probably benign Het
Zscan10 A G 17: 23,609,359 T182A 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
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
R5339:Chrna7 UTSW 7 63099307 missense probably damaging 1.00
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 On2016-10-05