Incidental Mutation 'R8337:Chrna2'
ID 644690
Institutional Source Beutler Lab
Gene Symbol Chrna2
Ensembl Gene ENSMUSG00000022041
Gene Name cholinergic receptor nicotinic alpha 2 subunit
Synonyms Acra-2, Acra2
MMRRC Submission 067800-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R8337 (G1)
Quality Score 225.009
Status Validated
Chromosome 14
Chromosomal Location 66372488-66390397 bp(+) (GRCm39)
Type of Mutation nonsense
DNA Base Change (assembly) G to T at 66387017 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Stop codon at position 388 (E388*)
Ref Sequence ENSEMBL: ENSMUSP00000022620 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022620] [ENSMUST00000022622] [ENSMUST00000089250] [ENSMUST00000111121] [ENSMUST00000178730] [ENSMUST00000206455]
AlphaFold Q91X60
Predicted Effect probably null
Transcript: ENSMUST00000022620
AA Change: E388*
SMART Domains Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: E388*

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 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 null
Transcript: ENSMUST00000206455
AA Change: E388*
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.5%
  • 20x: 98.2%
Validation Efficiency 100% (55/55)
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
2310034C09Rik T C 16: 88,556,151 (GRCm39) Y122H probably damaging Het
Abhd14b T A 9: 106,327,240 (GRCm39) H7Q probably benign Het
Acod1 C T 14: 103,286,780 (GRCm39) R28W possibly damaging Het
Agap2 A G 10: 126,924,194 (GRCm39) T803A unknown Het
Angptl7 T C 4: 148,581,741 (GRCm39) E215G probably damaging Het
Ankrd34c T A 9: 89,611,951 (GRCm39) D130V probably damaging Het
BC028528 A G 3: 95,792,298 (GRCm39) V144A probably benign Het
Cab39l T C 14: 59,776,640 (GRCm39) F274L probably damaging Het
Cdsn T C 17: 35,866,415 (GRCm39) S315P possibly damaging Het
Celsr3 CGGGG CGGGGG 9: 108,718,471 (GRCm39) probably null Het
Cep97 A T 16: 55,735,394 (GRCm39) L540* probably null Het
Ckap4 A G 10: 84,364,460 (GRCm39) V201A probably damaging Het
Clec4b1 A G 6: 123,042,922 (GRCm39) K47R probably benign Het
Clvs2 A T 10: 33,404,484 (GRCm39) I244N possibly damaging Het
Cmtr1 G A 17: 29,893,151 (GRCm39) E57K probably benign Het
Cxxc1 T A 18: 74,353,910 (GRCm39) D565E possibly damaging Het
Dtx3l T A 16: 35,754,073 (GRCm39) M178L probably benign Het
Eml2 A G 7: 18,930,161 (GRCm39) D294G possibly damaging Het
Flt3 A G 5: 147,269,698 (GRCm39) probably null Het
Frs3 T A 17: 48,014,777 (GRCm39) L490Q probably damaging Het
Gm6882 G A 7: 21,161,559 (GRCm39) T103I possibly damaging Het
Gsdmd C T 15: 75,736,270 (GRCm39) T133I probably benign Het
Hhipl2 C A 1: 183,209,540 (GRCm39) C331* probably null Het
Ifnar1 C A 16: 91,302,224 (GRCm39) D566E possibly damaging Het
Ighv1-34 A T 12: 114,814,939 (GRCm39) N74K probably benign Het
Itk T C 11: 46,233,222 (GRCm39) probably null Het
Kdm7a T C 6: 39,122,461 (GRCm39) D801G probably benign Het
Marchf1 T C 8: 66,871,641 (GRCm39) L139P probably damaging Het
Metap1d T C 2: 71,345,982 (GRCm39) V181A probably damaging Het
Mfsd8 G A 3: 40,789,628 (GRCm39) R140C probably damaging Het
Mrps25 T C 6: 92,152,745 (GRCm39) T92A probably benign Het
Mucl3 T C 17: 35,948,486 (GRCm39) H371R possibly damaging Het
Ntng2 C A 2: 29,138,050 (GRCm39) M1I probably null Het
Or51b17 C T 7: 103,542,256 (GRCm39) G229R probably benign Het
Or51q1 A C 7: 103,628,581 (GRCm39) M61L probably damaging Het
Or8b57 T C 9: 40,003,695 (GRCm39) K189R probably benign Het
Pla2g12a A G 3: 129,672,465 (GRCm39) D33G probably damaging Het
Prlhr A G 19: 60,456,284 (GRCm39) V94A possibly damaging Het
Ralgapb T A 2: 158,292,192 (GRCm39) S793T probably benign Het
Rapgef6 T A 11: 54,522,127 (GRCm39) L455* probably null Het
Sbf2 T C 7: 110,040,669 (GRCm39) H386R probably benign Het
Sec23ip C A 7: 128,365,749 (GRCm39) N539K probably damaging Het
Shisa4 A G 1: 135,300,907 (GRCm39) L121P probably damaging Het
Slc28a2b C T 2: 122,355,617 (GRCm39) T603I probably benign Het
Stard9 T A 2: 120,510,306 (GRCm39) F296I probably damaging Het
Strn3 T C 12: 51,707,955 (GRCm39) K147E probably damaging Het
Taf5l T C 8: 124,724,841 (GRCm39) N326S probably benign Het
Tfb2m T A 1: 179,369,914 (GRCm39) I170L probably benign Het
Tfec T C 6: 16,845,422 (GRCm39) N79S possibly damaging Het
Tnn C T 1: 159,946,053 (GRCm39) G922R probably damaging Het
Tox3 T C 8: 91,074,507 (GRCm39) Y24C probably damaging Het
Vmn2r6 A T 3: 64,463,526 (GRCm39) L436* probably null Het
Vmn2r80 A G 10: 78,984,707 (GRCm39) I20V probably benign Het
Wdr97 T C 15: 76,245,684 (GRCm39) V1307A 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
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
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'- CGAGTACCTGCTCTTCACCATG -3'
(R):5'- ATCTCACTAGCCTGGGATGG -3'

Sequencing Primer
(F):5'- GTGATCACAGTCTTCGTGCTCAATG -3'
(R):5'- CACTAGCCTGGGATGGAGTCTTG -3'
Posted On 2020-09-02