Incidental Mutation 'R3931:Chrna2'
ID 308480
Institutional Source Beutler Lab
Gene Symbol Chrna2
Ensembl Gene ENSMUSG00000022041
Gene Name cholinergic receptor nicotinic alpha 2 subunit
Synonyms Acra-2, Acra2
MMRRC Submission 040918-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R3931 (G1)
Quality Score 225
Status Validated
Chromosome 14
Chromosomal Location 66372488-66390397 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 66387216 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Glycine at position 454 (E454G)
Ref Sequence ENSEMBL: ENSMUSP00000145896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022620] [ENSMUST00000022622] [ENSMUST00000089250] [ENSMUST00000111121] [ENSMUST00000178730] [ENSMUST00000206455]
AlphaFold Q91X60
Predicted Effect probably benign
Transcript: ENSMUST00000022620
AA Change: E454G

PolyPhen 2 Score 0.260 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: E454G

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: ENSMUST00000022622
SMART Domains Protein: ENSMUSP00000022622
Gene: ENSMUSG00000059456

DomainStartEndE-ValueType
B41 35 265 1.33e-45 SMART
TyrKc 425 679 1.46e-139 SMART
low complexity region 713 726 N/A INTRINSIC
Pfam:Focal_AT 870 1008 1.7e-67 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000089250
SMART Domains Protein: ENSMUSP00000086661
Gene: ENSMUSG00000059456

DomainStartEndE-ValueType
B41 35 265 1.33e-45 SMART
TyrKc 425 679 1.46e-139 SMART
low complexity region 713 726 N/A INTRINSIC
Pfam:Focal_AT 828 966 2e-68 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000111121
SMART Domains Protein: ENSMUSP00000106750
Gene: ENSMUSG00000059456

DomainStartEndE-ValueType
B41 35 265 1.33e-45 SMART
TyrKc 425 679 1.46e-139 SMART
low complexity region 713 726 N/A INTRINSIC
Pfam:Focal_AT 866 1004 1.1e-67 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000136216
Predicted Effect probably benign
Transcript: ENSMUST00000154865
SMART Domains Protein: ENSMUSP00000122683
Gene: ENSMUSG00000059456

DomainStartEndE-ValueType
Pfam:Pkinase_Tyr 1 83 8.5e-27 PFAM
low complexity region 117 130 N/A INTRINSIC
Pfam:Focal_AT 243 375 5e-57 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000178730
SMART Domains Protein: ENSMUSP00000137008
Gene: ENSMUSG00000059456

DomainStartEndE-ValueType
B41 35 265 1.33e-45 SMART
TyrKc 425 679 1.46e-139 SMART
low complexity region 713 726 N/A INTRINSIC
Pfam:Focal_AT 870 1002 2.1e-55 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000206455
AA Change: E454G

PolyPhen 2 Score 0.260 (Sensitivity: 0.91; Specificity: 0.88)
Meta Mutation Damage Score 0.2512 question?
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.7%
  • 10x: 97.3%
  • 20x: 94.8%
Validation Efficiency 100% (30/30)
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: 28 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A730049H05Rik A C 6: 92,811,420 (GRCm39) probably benign Het
Cbarp A G 10: 79,971,348 (GRCm39) L159P probably damaging Het
Ccnd2 A G 6: 127,107,422 (GRCm39) I249T probably damaging Het
Cerk G T 15: 86,039,311 (GRCm39) C193* probably null Het
Clnk T C 5: 38,925,412 (GRCm39) T130A probably benign Het
Dcbld2 T C 16: 58,285,701 (GRCm39) L620P probably damaging Het
Dhx29 T A 13: 113,095,499 (GRCm39) V942E probably damaging Het
Dnah17 C T 11: 117,971,675 (GRCm39) probably benign Het
Dnai1 G A 4: 41,604,229 (GRCm39) C212Y probably damaging Het
Dpep1 A G 8: 123,925,518 (GRCm39) D57G possibly damaging Het
Gfm2 G A 13: 97,311,532 (GRCm39) V701I probably benign Het
Grm1 C T 10: 10,595,622 (GRCm39) A669T probably benign Het
Hsd3b3 C T 3: 98,649,492 (GRCm39) G277D probably damaging Het
Hsf5 A G 11: 87,522,508 (GRCm39) Y367C probably damaging Het
Kirrel1 C T 3: 86,996,458 (GRCm39) M380I probably null Het
Lipo4 C T 19: 33,480,619 (GRCm39) V250I probably benign Het
Lrrc14 T C 15: 76,597,765 (GRCm39) V165A probably benign Het
Map3k9 A G 12: 81,819,691 (GRCm39) F188L probably damaging Het
Mpo A G 11: 87,691,866 (GRCm39) Y433C probably damaging Het
Nsd2 A G 5: 34,003,461 (GRCm39) K185E probably benign Het
Or6n2 T A 1: 173,897,147 (GRCm39) F94L probably damaging Het
Oxct1 T A 15: 4,066,601 (GRCm39) N72K possibly damaging Het
Ptpn12 A G 5: 21,206,321 (GRCm39) I324T probably benign Het
Sez6 T C 11: 77,867,708 (GRCm39) I875T probably damaging Het
Tpr T A 1: 150,311,655 (GRCm39) V1811E probably damaging Het
Trpc4 A G 3: 54,225,516 (GRCm39) D871G probably damaging Het
Upf2 A G 2: 6,051,821 (GRCm39) E1161G unknown Het
Zp2 T C 7: 119,731,580 (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
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
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'- TGGAGACCAACATGGATGC -3'
(R):5'- GAGGGTGACTGGTCCTTACAAG -3'

Sequencing Primer
(F):5'- AGACCAACATGGATGCTGAAG -3'
(R):5'- TGACTGGTCCTTACAAGAAGAAG -3'
Posted On 2015-04-17