Incidental Mutation 'R1205:Chrna2'
ID 100439
Institutional Source Beutler Lab
Gene Symbol Chrna2
Ensembl Gene ENSMUSG00000022041
Gene Name cholinergic receptor nicotinic alpha 2 subunit
Synonyms Acra-2, Acra2
MMRRC Submission 039275-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1205 (G1)
Quality Score 225
Status Not validated
Chromosome 14
Chromosomal Location 66372488-66390397 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 66380812 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Alanine to Valine at position 27 (A27V)
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: A27V

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: A27V

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: A27V

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.1%
  • 10x: 95.6%
  • 20x: 90.9%
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: 40 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgrg6 T A 10: 14,310,083 (GRCm39) N774I probably damaging Het
Bpifc T A 10: 85,817,168 (GRCm39) D230V probably damaging Het
Duox1 C T 2: 122,158,406 (GRCm39) Q630* probably null Het
Dzip3 C T 16: 48,772,044 (GRCm39) G542R probably damaging Het
Epha3 ATGAACTGCT AT 16: 63,418,611 (GRCm39) probably null Het
Fnip1 G T 11: 54,393,132 (GRCm39) V523L possibly damaging Het
Hc T A 2: 34,893,536 (GRCm39) D1225V possibly damaging Het
Hnrnpu C T 1: 178,159,734 (GRCm39) probably benign Het
Ift172 C T 5: 31,443,136 (GRCm39) V125I probably benign Het
Kcnip2 T A 19: 45,783,422 (GRCm39) Q93L probably null Het
Kif27 A T 13: 58,492,019 (GRCm39) H373Q probably benign Het
Kl T C 5: 150,904,153 (GRCm39) S302P probably damaging Het
Lyst G A 13: 13,854,787 (GRCm39) V2386I probably benign Het
Map4k4 G A 1: 40,043,004 (GRCm39) A128T probably damaging Het
Marchf6 A C 15: 31,469,819 (GRCm39) M717R probably benign Het
Morc2b A G 17: 33,354,908 (GRCm39) Y955H probably damaging Het
Myo7b A G 18: 32,127,395 (GRCm39) S636P probably damaging Het
Neb T A 2: 52,112,996 (GRCm39) D4266V probably damaging Het
Nynrin G A 14: 56,091,646 (GRCm39) probably benign Het
Or1j18 G A 2: 36,624,767 (GRCm39) V145I probably benign Het
Or4c107 A T 2: 88,788,932 (GRCm39) I41L probably benign Het
Or5b104 T C 19: 13,072,899 (GRCm39) I38V probably benign Het
Pcdh9 A G 14: 94,123,501 (GRCm39) S890P probably benign Het
Pcnx1 G T 12: 82,003,017 (GRCm39) D1052Y probably damaging Het
Pibf1 G A 14: 99,338,639 (GRCm39) E52K probably damaging Het
Siglec1 T G 2: 130,922,384 (GRCm39) S564R possibly damaging Het
Sin3a T A 9: 57,026,459 (GRCm39) V1125E probably damaging Het
Slco4c1 G T 1: 96,795,613 (GRCm39) D148E probably damaging Het
Spag6l A T 16: 16,605,171 (GRCm39) L127Q probably damaging Het
Syne4 C A 7: 30,014,761 (GRCm39) T68N probably damaging Het
Tas2r134 A G 2: 51,517,998 (GRCm39) Y159C probably benign Het
Tasor A T 14: 27,183,275 (GRCm39) D578V probably damaging Het
Thoc2l T C 5: 104,668,079 (GRCm39) L867S probably benign Het
Tmem132a C A 19: 10,836,448 (GRCm39) R694L probably benign Het
Ttc28 C T 5: 111,433,635 (GRCm39) P2192L probably benign Het
Ttc34 T G 4: 154,946,671 (GRCm39) V857G probably benign Het
Ugt1a7c A T 1: 88,023,678 (GRCm39) H279L probably benign Het
Vmn1r32 G A 6: 66,530,539 (GRCm39) T79I probably benign Het
Vps13a A T 19: 16,617,905 (GRCm39) V2960D probably damaging Het
Wee2 G T 6: 40,420,875 (GRCm39) 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
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
R4080:Chrna2 UTSW 14 66,380,866 (GRCm39) missense probably benign 0.12
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'- CTGCGTTAAGCACCAATCTGCG -3'
(R):5'- TTCCTCAGGGTCACCCAATCACAG -3'

Sequencing Primer
(F):5'- ACCAATCTGCGTTAATCTATGGGG -3'
(R):5'- GTTTTAGACAACCTATGCTCTTGG -3'
Posted On 2014-01-15