Incidental Mutation 'R4080:Chrna2'
ID 316835
Institutional Source Beutler Lab
Gene Symbol Chrna2
Ensembl Gene ENSMUSG00000022041
Gene Name cholinergic receptor nicotinic alpha 2 subunit
Synonyms Acra-2, Acra2
MMRRC Submission 040856-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R4080 (G1)
Quality Score 225
Status Not validated
Chromosome 14
Chromosomal Location 66372488-66390397 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 66380866 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glycine to Valine at position 45 (G45V)
Ref Sequence ENSEMBL: ENSMUSP00000145896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022620] [ENSMUST00000206455]
AlphaFold Q91X60
Predicted Effect probably benign
Transcript: ENSMUST00000022620
AA Change: G45V

PolyPhen 2 Score 0.120 (Sensitivity: 0.93; Specificity: 0.86)
SMART Domains Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: G45V

DomainStartEndE-ValueType
Pfam:Neur_chan_LBD 36 242 2.2e-81 PFAM
Pfam:Neur_chan_memb 249 503 5e-97 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000206455
AA Change: G45V

PolyPhen 2 Score 0.120 (Sensitivity: 0.93; Specificity: 0.86)
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.5%
  • 20x: 95.9%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Nicotinic acetylcholine receptors (nAChRs) are ligand-gated ion channels formed by a pentameric arrangement of alpha and beta subunits to create distinct muscle and neuronal receptors. Neuronal receptors are found throughout the peripheral and central nervous system where they are involved in fast synaptic transmission. This gene encodes an alpha subunit that is widely expressed in the brain. The proposed structure for nAChR subunits 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. Mutations in this gene cause autosomal dominant nocturnal frontal lobe epilepsy type 4. Single nucleotide polymorphisms (SNPs) in this gene have been associated with nicotine dependence. [provided by RefSeq, Nov 2009]
PHENOTYPE: Mice homozygous for a targeted null mutation do not exhibit any significant abnormalities compared to controls. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 66 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aass A T 6: 23,109,497 (GRCm39) D324E possibly damaging Het
Adam7 T C 14: 68,757,988 (GRCm39) T245A probably benign Het
Adgrf3 G A 5: 30,402,367 (GRCm39) Q554* probably null Het
Aim2 T C 1: 173,287,417 (GRCm39) probably null Het
Arhgef1 G T 7: 24,625,271 (GRCm39) D850Y probably damaging Het
Aspm C A 1: 139,398,493 (GRCm39) Q1024K probably damaging Het
C7 T C 15: 5,019,946 (GRCm39) S734G probably benign Het
Ccdc158 A T 5: 92,771,255 (GRCm39) S987T probably benign Het
Clec2g C A 6: 128,958,287 (GRCm39) Q117K probably damaging Het
Cntnap5a A G 1: 116,029,304 (GRCm39) S253G probably benign Het
Cttn T A 7: 144,011,461 (GRCm39) D116V probably damaging Het
Cyp2c40 A G 19: 39,790,973 (GRCm39) V286A probably benign Het
Dcbld2 T A 16: 58,285,736 (GRCm39) S632T probably damaging Het
Dscam A T 16: 96,484,972 (GRCm39) N1118K probably benign Het
Eif2a C T 3: 58,447,050 (GRCm39) T92M possibly damaging Het
Frmpd1 T A 4: 45,284,382 (GRCm39) C1068S probably benign Het
Fstl1 G A 16: 37,642,965 (GRCm39) V110I probably benign Het
Gpat2 T C 2: 127,275,542 (GRCm39) I465T probably damaging Het
Gpr137 C T 19: 6,917,791 (GRCm39) probably benign Het
Hgsnat A G 8: 26,436,371 (GRCm39) I561T probably benign Het
Ift74 T A 4: 94,541,149 (GRCm39) probably null Het
Ilf3 A G 9: 21,314,430 (GRCm39) probably null Het
Kcnh8 GAGACCAACGAGCAGCTGATGCTTCAGA GAGA 17: 53,032,934 (GRCm39) 74 probably benign Het
Klk14 G A 7: 43,341,501 (GRCm39) C51Y probably damaging Het
Lrrc41 C A 4: 115,937,743 (GRCm39) probably null Het
Myh11 C A 16: 14,041,923 (GRCm39) R700L possibly damaging Het
Myo16 A G 8: 10,612,240 (GRCm39) D1295G probably damaging Het
Myo5b A G 18: 74,873,559 (GRCm39) M1488V probably benign Het
Naip6 A T 13: 100,435,815 (GRCm39) Y903N probably damaging Het
Nek6 A G 2: 38,440,649 (GRCm39) H19R probably damaging Het
Nktr A C 9: 121,570,192 (GRCm39) T127P probably damaging Het
Noc4l A T 5: 110,797,738 (GRCm39) D335E probably benign Het
Nsd1 A G 13: 55,449,622 (GRCm39) D1993G probably damaging Het
Or1ad1 G A 11: 50,875,683 (GRCm39) D52N probably damaging Het
Or5h22 A T 16: 58,894,619 (GRCm39) F275I probably damaging Het
Pabpc2 A T 18: 39,908,583 (GRCm39) Q616L possibly damaging Het
Pcdhga4 A T 18: 37,818,832 (GRCm39) D127V probably damaging Het
Phrf1 T C 7: 140,839,633 (GRCm39) probably benign Het
Phtf2 T A 5: 21,018,294 (GRCm39) I16F probably damaging Het
Plekhg3 G T 12: 76,624,755 (GRCm39) R1200L probably benign Het
Plod3 G C 5: 137,017,000 (GRCm39) A50P probably benign Het
Prorp G T 12: 55,351,398 (GRCm39) V236F possibly damaging Het
Prss12 A G 3: 123,279,134 (GRCm39) N404D probably benign Het
Ptch2 C G 4: 116,968,403 (GRCm39) A926G probably damaging Het
Ptpra T C 2: 30,333,317 (GRCm39) F6L probably damaging Het
Reck T C 4: 43,942,293 (GRCm39) I853T possibly damaging Het
Reep6 G A 10: 80,165,996 (GRCm39) probably benign Het
Rex2 T A 4: 147,143,154 (GRCm39) S547R probably benign Het
Rgs22 C T 15: 36,107,222 (GRCm39) E55K probably damaging Het
Rtl6 T C 15: 84,441,202 (GRCm39) T65A possibly damaging Het
Scarb1 G T 5: 125,354,859 (GRCm39) P491Q probably damaging Het
Scfd1 A G 12: 51,478,302 (GRCm39) S505G probably benign Het
Scube1 T G 15: 83,492,948 (GRCm39) Q904P probably damaging Het
Sis T C 3: 72,828,517 (GRCm39) Y1186C probably damaging Het
Spta1 A G 1: 174,041,632 (GRCm39) D1334G probably benign Het
Spty2d1 T C 7: 46,648,329 (GRCm39) E200G probably damaging Het
Stard13 C A 5: 151,016,294 (GRCm39) probably null Het
Sybu T C 15: 44,582,339 (GRCm39) K95R probably damaging Het
Trappc9 T A 15: 72,813,796 (GRCm39) D488V probably damaging Het
Txk G A 5: 72,858,006 (GRCm39) P381S probably damaging Het
Ubr2 A T 17: 47,299,648 (GRCm39) M198K probably benign Het
Unc5a A T 13: 55,152,294 (GRCm39) T786S possibly damaging Het
Unc93b1 G A 19: 3,991,959 (GRCm39) R231Q probably damaging Het
Wfdc1 T A 8: 120,410,532 (GRCm39) probably null Het
Zfp667 T G 7: 6,308,105 (GRCm39) C258G possibly damaging Het
Zfr G A 15: 12,162,319 (GRCm39) R823H probably benign Het
Other mutations in Chrna2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02738:Chrna2 APN 14 66,386,889 (GRCm39) missense probably benign 0.01
IGL03172:Chrna2 APN 14 66,379,688 (GRCm39) missense probably benign
IGL03268:Chrna2 APN 14 66,388,395 (GRCm39) splice site probably benign
IGL03344:Chrna2 APN 14 66,388,415 (GRCm39) missense probably damaging 0.99
intrepid UTSW 14 66,383,902 (GRCm39) missense probably damaging 1.00
PIT1430001:Chrna2 UTSW 14 66,387,186 (GRCm39) missense probably benign 0.01
R0511:Chrna2 UTSW 14 66,386,553 (GRCm39) missense probably damaging 1.00
R0631:Chrna2 UTSW 14 66,386,757 (GRCm39) missense probably benign 0.45
R1205:Chrna2 UTSW 14 66,380,812 (GRCm39) missense probably benign 0.00
R1485:Chrna2 UTSW 14 66,380,812 (GRCm39) missense probably benign 0.00
R1487:Chrna2 UTSW 14 66,380,812 (GRCm39) missense probably benign 0.00
R1513:Chrna2 UTSW 14 66,380,878 (GRCm39) missense probably benign 0.13
R2023:Chrna2 UTSW 14 66,379,677 (GRCm39) missense probably benign 0.25
R2094:Chrna2 UTSW 14 66,386,912 (GRCm39) missense possibly damaging 0.65
R2964:Chrna2 UTSW 14 66,386,817 (GRCm39) missense possibly damaging 0.82
R2966:Chrna2 UTSW 14 66,386,817 (GRCm39) missense possibly damaging 0.82
R3118:Chrna2 UTSW 14 66,388,442 (GRCm39) missense probably damaging 0.98
R3931:Chrna2 UTSW 14 66,387,216 (GRCm39) missense probably benign 0.26
R3979:Chrna2 UTSW 14 66,386,402 (GRCm39) missense probably damaging 1.00
R3983:Chrna2 UTSW 14 66,386,906 (GRCm39) missense probably benign 0.00
R4080:Chrna2 UTSW 14 66,380,873 (GRCm39) nonsense probably null
R4508:Chrna2 UTSW 14 66,383,902 (GRCm39) missense probably damaging 1.00
R4661:Chrna2 UTSW 14 66,386,292 (GRCm39) missense probably damaging 1.00
R4726:Chrna2 UTSW 14 66,386,345 (GRCm39) missense possibly damaging 0.85
R5349:Chrna2 UTSW 14 66,380,956 (GRCm39) missense probably damaging 0.99
R5787:Chrna2 UTSW 14 66,386,457 (GRCm39) missense probably benign 0.16
R6967:Chrna2 UTSW 14 66,388,398 (GRCm39) critical splice acceptor site probably null
R7218:Chrna2 UTSW 14 66,381,320 (GRCm39) splice site probably null
R7274:Chrna2 UTSW 14 66,386,675 (GRCm39) missense probably benign 0.03
R7565:Chrna2 UTSW 14 66,388,484 (GRCm39) missense probably benign
R7965:Chrna2 UTSW 14 66,388,525 (GRCm39) makesense probably null
R8337:Chrna2 UTSW 14 66,387,017 (GRCm39) nonsense probably null
R8955:Chrna2 UTSW 14 66,379,681 (GRCm39) missense probably benign 0.43
R9017:Chrna2 UTSW 14 66,386,282 (GRCm39) missense probably benign 0.40
Z1176:Chrna2 UTSW 14 66,386,753 (GRCm39) missense probably damaging 1.00
Z1177:Chrna2 UTSW 14 66,388,476 (GRCm39) missense probably null 1.00
Predicted Primers PCR Primer
(F):5'- ATGTATGTAACCCCTGTACTGAG -3'
(R):5'- AGAAGGGCTGAGCTGAATCC -3'

Sequencing Primer
(F):5'- GTAACCCCTGTACTGAGGCTACATG -3'
(R):5'- GCTGAGCTGAATCCAAGGAG -3'
Posted On 2015-05-15