Mutagenetix > Incidental Mutation

Incidental Mutation 'R2023:Chrna2'

220185

Institutional Source

Beutler Lab

Gene Symbol

Chrna2

Ensembl Gene

ENSMUSG00000022041

Gene Name

cholinergic receptor nicotinic alpha 2 subunit

Synonyms

Acra-2, Acra2

MMRRC Submission

040032-MU

Accession Numbers

Essential gene?

Non essential (E-score: 0.000) question?

Stock #

R2023 (G1)

Quality Score

225

Status

Validated

Chromosome

Chromosomal Location

66372488-66390397 bp(+) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

T to A at 66379677 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Histidine to Glutamine at position 5 (H5Q)

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: H5Q

PolyPhen 2 Score 0.250 (Sensitivity: 0.91; Specificity: 0.88)

SMART Domains

Protein: ENSMUSP00000022620
Gene: ENSMUSG00000022041
AA Change: H5Q

Domain	Start	End	E-Value	Type
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: H5Q

PolyPhen 2 Score 0.250 (Sensitivity: 0.91; Specificity: 0.88)

Meta Mutation Damage Score

0.0898

Coding Region Coverage

1x: 99.2%
3x: 98.4%
10x: 96.5%
20x: 92.4%

Validation Efficiency

97% (60/62)

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: 60 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
9930111J21Rik1	A	G	11: 48,839,247 (GRCm39)	S447P	possibly damaging	Het
9930111J21Rik2	A	G	11: 48,911,144 (GRCm39)	F430L	probably benign	Het
Acap2	A	G	16: 30,938,233 (GRCm39)	V297A	probably damaging	Het
Adam3	G	A	8: 25,179,479 (GRCm39)	R613C	possibly damaging	Het
Akt1	C	T	12: 112,626,071 (GRCm39)	R67Q	probably benign	Het
Ambp	T	C	4: 63,069,702 (GRCm39)	Y108C	probably damaging	Het
Apob	A	G	12: 8,061,090 (GRCm39)	I3158V	probably benign	Het
Bank1	T	C	3: 136,031,679 (GRCm39)	T8A	probably benign	Het
Casp8ap2	T	C	4: 32,644,560 (GRCm39)	V1211A	probably benign	Het
Ccdc88a	G	T	11: 29,413,546 (GRCm39)	E695*	probably null	Het
Cep68	A	C	11: 20,189,888 (GRCm39)	S375A	probably benign	Het
Cfap44	A	G	16: 44,236,375 (GRCm39)	I417V	probably benign	Het
Cog7	A	T	7: 121,536,193 (GRCm39)	I549K	probably damaging	Het
Col28a1	C	A	6: 8,083,783 (GRCm39)	S558I	possibly damaging	Het
Cyp4f14	A	G	17: 33,125,505 (GRCm39)	I385T	probably damaging	Het
Dynlt4	A	G	4: 116,985,504 (GRCm39)	E109G	possibly damaging	Het
Erap1	T	A	13: 74,814,627 (GRCm39)	V451E	probably benign	Het
Frem1	G	T	4: 82,831,795 (GRCm39)	T1988K	probably benign	Het
Gm10277	TC	T	11: 77,676,828 (GRCm39)		probably null	Het
Gm5616	A	G	9: 48,361,928 (GRCm39)		noncoding transcript	Het
Gm5709	T	C	3: 59,543,142 (GRCm39)		noncoding transcript	Het
Hjurp	GT	GTT	1: 88,194,246 (GRCm39)		probably null	Het
Hsd11b1	T	C	1: 192,922,686 (GRCm39)	T124A	probably benign	Het
Itpr3	T	A	17: 27,321,785 (GRCm39)	M1054K	possibly damaging	Het
Kars1	T	C	8: 112,728,484 (GRCm39)	N200S	probably benign	Het
Kdm2a	C	A	19: 4,372,492 (GRCm39)	R951L	probably damaging	Het
Ldhd	T	A	8: 112,356,578 (GRCm39)	H61L	probably damaging	Het
Macf1	G	T	4: 123,366,523 (GRCm39)	A2746E	probably damaging	Het
Micall2	A	G	5: 139,703,266 (GRCm39)	V190A	possibly damaging	Het
Mis18bp1	A	T	12: 65,195,883 (GRCm39)	V627E	probably damaging	Het
Muc4	A	T	16: 32,574,054 (GRCm39)	T711S	probably benign	Het
Notch4	T	C	17: 34,806,502 (GRCm39)	L1813P	probably damaging	Het
Nox3	A	G	17: 3,744,296 (GRCm39)		probably benign	Het
Or4b1d	G	T	2: 89,969,200 (GRCm39)	C94*	probably null	Het
Or5p63	A	G	7: 107,811,049 (GRCm39)	L229P	probably damaging	Het
Or6c1b	T	A	10: 129,273,451 (GRCm39)	Y257N	probably damaging	Het
Osbpl2	C	A	2: 179,791,969 (GRCm39)		probably null	Het
Pamr1	T	A	2: 102,464,880 (GRCm39)	M343K	probably benign	Het
Pcdh15	T	G	10: 74,467,025 (GRCm39)	S1684A	possibly damaging	Het
Pgr	T	A	9: 8,958,399 (GRCm39)	V802D	probably damaging	Het
Pgs1	A	G	11: 117,893,228 (GRCm39)	E55G	probably benign	Het
Pkd2	T	A	5: 104,614,744 (GRCm39)		probably null	Het
Ppp3r2	T	C	4: 49,681,723 (GRCm39)	I76V	probably benign	Het
Ptprd	C	T	4: 75,875,341 (GRCm39)	E1240K	probably damaging	Het
Recql5	G	A	11: 115,784,466 (GRCm39)	T878I	probably benign	Het
Rnf17	A	G	14: 56,669,036 (GRCm39)	D233G	possibly damaging	Het
Sectm1a	A	G	11: 120,960,408 (GRCm39)		probably benign	Het
Smo	A	G	6: 29,754,715 (GRCm39)	N262D	possibly damaging	Het
Srcin1	A	G	11: 97,416,872 (GRCm39)	S931P	probably benign	Het
Tcof1	C	T	18: 60,966,605 (GRCm39)	G329R	probably damaging	Het
Thsd7a	G	A	6: 12,327,535 (GRCm39)	H1446Y	probably benign	Het
Tlr11	A	G	14: 50,600,026 (GRCm39)	T671A	probably damaging	Het
Tmem171	C	A	13: 98,828,733 (GRCm39)	W139L	probably damaging	Het
Vmn2r101	C	T	17: 19,810,368 (GRCm39)	R385*	probably null	Het
Vps13c	A	T	9: 67,843,567 (GRCm39)		probably benign	Het
Wdr87-ps	G	T	7: 29,230,959 (GRCm39)		noncoding transcript	Het
Zfp287	A	C	11: 62,605,808 (GRCm39)	Y366*	probably null	Het
Zfp456	A	T	13: 67,514,616 (GRCm39)	C363*	probably null	Het
Zfp523	A	G	17: 28,419,978 (GRCm39)		probably benign	Het
Zfp667	A	C	7: 6,308,416 (GRCm39)	K361N	possibly damaging	Het

Other mutations in Chrna2

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH 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
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'- TAGGTGCCCCATAAACCAGG -3'
(R):5'- CAGCCAATGACCTTAAGTGCC -3'

Sequencing Primer
(F):5'- AGGCCCATTGACAGCCATTTTC -3'
(R):5'- CCCCTGTACCCTTGAGAATGATATG -3'

Posted On

2014-08-25