Incidental Mutation 'R2094:Chrna2'
ID 231993
Institutional Source Beutler Lab
Gene Symbol Chrna2
Ensembl Gene ENSMUSG00000022041
Gene Name cholinergic receptor nicotinic alpha 2 subunit
Synonyms Acra-2, Acra2
MMRRC Submission 040098-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R2094 (G1)
Quality Score 225
Status Validated
Chromosome 14
Chromosomal Location 66372488-66390397 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 66386912 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Tryptophan at position 353 (R353W)
Ref Sequence ENSEMBL: ENSMUSP00000145896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022620] [ENSMUST00000022622] [ENSMUST00000089250] [ENSMUST00000111121] [ENSMUST00000178730] [ENSMUST00000206455]
AlphaFold Q91X60
Predicted Effect possibly damaging
Transcript: ENSMUST00000022620
AA Change: R353W

PolyPhen 2 Score 0.647 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: R353W

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 possibly damaging
Transcript: ENSMUST00000206455
AA Change: R353W

PolyPhen 2 Score 0.647 (Sensitivity: 0.87; Specificity: 0.91)
Meta Mutation Damage Score 0.6732 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.4%
Validation Efficiency 100% (56/56)
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: 54 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A130010J15Rik A G 1: 192,857,154 (GRCm39) I169V probably benign Het
Arrdc5 A G 17: 56,604,856 (GRCm39) S144P probably benign Het
Astn1 A G 1: 158,495,179 (GRCm39) M92V probably benign Het
Atg5 A G 10: 44,195,544 (GRCm39) I189M probably damaging Het
Atmin A G 8: 117,684,277 (GRCm39) T646A probably damaging Het
Atp1a2 G A 1: 172,115,000 (GRCm39) R262W probably damaging Het
Atp6v1g2 A G 17: 35,455,785 (GRCm39) K16E probably damaging Het
Bex6 G A 16: 32,005,278 (GRCm39) E29K possibly damaging Het
Casd1 A G 6: 4,608,705 (GRCm39) Y101C probably damaging Het
Ccdc168 A C 1: 44,098,890 (GRCm39) I736S probably benign Het
Cdx1 T C 18: 61,168,984 (GRCm39) D70G possibly damaging Het
Cebpz T C 17: 79,242,983 (GRCm39) T224A probably benign Het
Cep170b T C 12: 112,702,164 (GRCm39) V319A possibly damaging Het
Chst5 A T 8: 112,617,176 (GRCm39) V148E probably benign Het
Clhc1 T A 11: 29,507,771 (GRCm39) W162R probably benign Het
Csmd1 T A 8: 16,129,992 (GRCm39) Q1710L probably damaging Het
Ddb1 A C 19: 10,590,300 (GRCm39) M276L probably benign Het
Dot1l C T 10: 80,621,712 (GRCm39) R455C probably damaging Het
Dync2h1 A G 9: 7,148,735 (GRCm39) V903A probably benign Het
Eno1b T C 18: 48,180,542 (GRCm39) V240A possibly damaging Het
Erich1 T G 8: 14,140,527 (GRCm39) probably benign Het
Ermp1 A C 19: 29,617,328 (GRCm39) S227A probably benign Het
Etv1 C A 12: 38,885,115 (GRCm39) P143Q probably null Het
Gimap8 A T 6: 48,627,502 (GRCm39) I159F probably benign Het
Gpr4 G A 7: 18,956,503 (GRCm39) V142M possibly damaging Het
Gucy1a1 C T 3: 82,020,639 (GRCm39) C86Y probably benign Het
Ifngr2 T G 16: 91,358,667 (GRCm39) probably null Het
Insrr A T 3: 87,710,488 (GRCm39) N398I probably damaging Het
Iws1 A G 18: 32,217,719 (GRCm39) E441G probably damaging Het
Larp7-ps A G 4: 92,079,893 (GRCm39) S32P probably damaging Het
Megf10 A T 18: 57,414,785 (GRCm39) K732* probably null Het
Mprip T A 11: 59,640,334 (GRCm39) probably benign Het
Mrgprb8 T C 7: 48,038,953 (GRCm39) V208A probably benign Het
Msc G C 1: 14,825,908 (GRCm39) P22R probably benign Het
Opcml G A 9: 28,812,886 (GRCm39) E193K probably damaging Het
Or4k15b A T 14: 50,272,171 (GRCm39) S230T probably damaging Het
Oxsr1 A C 9: 119,123,560 (GRCm39) H71Q probably benign Het
Pkp2 T A 16: 16,064,831 (GRCm39) W452R probably damaging Het
Prrc2b C T 2: 32,072,582 (GRCm39) T20I probably damaging Het
Rasgrp3 T C 17: 75,810,136 (GRCm39) S279P probably damaging Het
Rtl1 T A 12: 109,557,831 (GRCm39) D1336V unknown Het
Serpina3m G T 12: 104,355,529 (GRCm39) K65N probably benign Het
Serpine2 A G 1: 79,788,411 (GRCm39) V182A probably damaging Het
Slc10a1 A G 12: 81,002,822 (GRCm39) V272A possibly damaging Het
Slc25a29 A T 12: 108,793,358 (GRCm39) N73K probably damaging Het
Slit1 G A 19: 41,594,819 (GRCm39) R1184W probably damaging Het
Srrm2 T C 17: 24,031,403 (GRCm39) probably benign Het
Stk11ip A G 1: 75,502,165 (GRCm39) probably benign Het
Tcerg1 A G 18: 42,697,210 (GRCm39) K767R possibly damaging Het
Tmem82 T C 4: 141,343,598 (GRCm39) K224R probably benign Het
Tmprss11g A G 5: 86,647,415 (GRCm39) L41S probably damaging Het
Trim42 T C 9: 97,248,150 (GRCm39) N182S probably benign Het
Ttn T C 2: 76,660,432 (GRCm39) T7430A probably benign Het
Wwp1 T C 4: 19,650,390 (GRCm39) T259A 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
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'- AGATCACGCTGTGCATCTCG -3'
(R):5'- AGGCCTGCACACATACATATG -3'

Sequencing Primer
(F):5'- TGCTGCTCATCACAGAAATTATCC -3'
(R):5'- AGGCCTGCACACATACATATGTTTTC -3'
Posted On 2014-09-18