Incidental Mutation 'R3118:Chrna2'
ID 263137
Institutional Source Beutler Lab
Gene Symbol Chrna2
Ensembl Gene ENSMUSG00000022041
Gene Name cholinergic receptor nicotinic alpha 2 subunit
Synonyms Acra-2, Acra2
MMRRC Submission 040591-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R3118 (G1)
Quality Score 225
Status Not validated
Chromosome 14
Chromosomal Location 66372488-66390397 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 66388442 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 486 (I486V)
Ref Sequence ENSEMBL: ENSMUSP00000145896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022620] [ENSMUST00000022622] [ENSMUST00000089250] [ENSMUST00000111121] [ENSMUST00000178730] [ENSMUST00000206455]
AlphaFold Q91X60
Predicted Effect probably damaging
Transcript: ENSMUST00000022620
AA Change: I486V

PolyPhen 2 Score 0.979 (Sensitivity: 0.75; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: I486V

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 damaging
Transcript: ENSMUST00000206455
AA Change: I486V

PolyPhen 2 Score 0.979 (Sensitivity: 0.75; Specificity: 0.96)
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.4%
  • 20x: 95.5%
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: 28 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamts6 T G 13: 104,450,787 (GRCm39) D323E possibly damaging Het
Ccdc125 T C 13: 100,826,827 (GRCm39) V228A possibly damaging Het
Cpxm1 T C 2: 130,235,493 (GRCm39) T500A possibly damaging Het
Crebbp G A 16: 3,927,062 (GRCm39) R628C probably damaging Het
Cxcl1 T A 5: 91,039,454 (GRCm39) probably null Het
Dab1 G A 4: 104,537,266 (GRCm39) probably null Het
Ddx11 T A 17: 66,456,272 (GRCm39) M751K probably damaging Het
Ece1 A G 4: 137,675,855 (GRCm39) T410A probably benign Het
Eml5 C T 12: 98,831,753 (GRCm39) V402I probably damaging Het
Fam241b A T 10: 61,944,635 (GRCm39) *121R probably null Het
Fras1 G A 5: 96,919,571 (GRCm39) A3595T probably damaging Het
Gpr149 A G 3: 62,502,443 (GRCm39) V471A probably benign Het
Lemd3 A G 10: 120,783,156 (GRCm39) S557P probably benign Het
Mkrn3 CGGCATTGGCACTGGCATTGGCACTGGCATTGGCA CGGCATTGGCACTGGCATTGGCA 7: 62,068,962 (GRCm39) probably benign Het
Mmp7 T C 9: 7,697,693 (GRCm39) Y243H probably benign Het
Obscn T C 11: 59,022,472 (GRCm39) R758G possibly damaging Het
Pak6 T C 2: 118,520,222 (GRCm39) V71A probably damaging Het
Pira2 T A 7: 3,844,676 (GRCm39) R452* probably null Het
Plxna1 A G 6: 89,333,958 (GRCm39) S224P possibly damaging Het
Prpf39 T C 12: 65,104,651 (GRCm39) V572A possibly damaging Het
Prss12 A T 3: 123,298,976 (GRCm39) T583S possibly damaging Het
Rgs10 T C 7: 128,004,955 (GRCm39) E65G probably damaging Het
Rnf19a T A 15: 36,242,045 (GRCm39) K665* probably null Het
Rufy4 T C 1: 74,186,822 (GRCm39) C537R probably damaging Het
Tbx15 T C 3: 99,259,470 (GRCm39) I447T probably damaging Het
Tmem135 A G 7: 88,797,005 (GRCm39) S364P probably benign Het
Ugt1a9 T C 1: 87,998,562 (GRCm39) V4A probably benign Het
Zfp595 T C 13: 67,468,963 (GRCm39) I95M 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
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'- ATGTGTGGGATAACCTTGGC -3'
(R):5'- TGAAGTCCAGGCTAGATCAGGG -3'

Sequencing Primer
(F):5'- GGGATAACCTTGGCTTTGCAAGC -3'
(R):5'- TCAGGGGCCTCGTAGAAACATC -3'
Posted On 2015-02-05