Incidental Mutation 'R4236:Chrnb3'
ID 321125
Institutional Source Beutler Lab
Gene Symbol Chrnb3
Ensembl Gene ENSMUSG00000031492
Gene Name cholinergic receptor, nicotinic, beta polypeptide 3
Synonyms Acrb3, 5730417K16Rik
MMRRC Submission 041053-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.081) question?
Stock # R4236 (G1)
Quality Score 225
Status Validated
Chromosome 8
Chromosomal Location 27858739-27889758 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 27884021 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Methionine at position 253 (L253M)
Ref Sequence ENSEMBL: ENSMUSP00000147672 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000060943] [ENSMUST00000079463] [ENSMUST00000211104]
AlphaFold Q8BMN3
Predicted Effect probably damaging
Transcript: ENSMUST00000060943
AA Change: L253M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000052297
Gene: ENSMUSG00000031492
AA Change: L253M

DomainStartEndE-ValueType
Pfam:Neur_chan_LBD 35 239 2.3e-75 PFAM
Pfam:Neur_chan_memb 246 452 1.9e-65 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000079463
AA Change: L238M

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000078428
Gene: ENSMUSG00000031492
AA Change: L238M

DomainStartEndE-ValueType
Pfam:Neur_chan_LBD 35 224 1.3e-57 PFAM
Pfam:Neur_chan_memb 231 374 4.3e-48 PFAM
Pfam:Neur_chan_memb 349 437 9.7e-15 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000211104
AA Change: L253M

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
Meta Mutation Damage Score 0.2889 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.4%
  • 20x: 95.5%
Validation Efficiency 96% (49/51)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The nicotinic acetylcholine receptors (nAChRs) are members of a superfamily of ligand-gated ion channels that mediate fast signal transmission at synapses. The nAChRs are (hetero)pentamers composed of homologous subunits. The subunits that make up the muscle and neuronal forms of nAChRs are encoded by separate genes and have different primary structure. There are several subtypes of neuronal nAChRs that vary based on which homologous subunits are arranged around the central channel. They are classified as alpha-subunits if, like muscle alpha-1 (MIM 100690), they have a pair of adjacent cysteines as part of the presumed acetylcholine binding site. Subunits lacking these cysteine residues are classified as beta-subunits (Groot Kormelink and Luyten, 1997 [PubMed 9009220]). Elliott et al. (1996) [PubMed 8906617] stated that the proposed structure for each subunit is a conserved N-terminal extracellular domain followed by 3 conserved transmembrane domains, a variable cytoplasmic loop, a fourth conserved transmembrane domain, and a short C-terminal extracellular region.[supplied by OMIM, Apr 2010]
PHENOTYPE: Mice homozygous for disruptions in this gene display hyperactivity and reflex abnormalities but were otherwise phenotypically normal. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 46 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930567H17Rik C T X: 69,438,135 (GRCm39) A53T probably benign Het
Abca13 A T 11: 9,206,205 (GRCm39) K168N probably damaging Het
Ajuba T C 14: 54,806,983 (GRCm39) R490G probably damaging Het
Akap6 T A 12: 53,186,454 (GRCm39) N1289K probably damaging Het
Ankfy1 G A 11: 72,605,310 (GRCm39) probably null Het
Arhgap21 A G 2: 20,891,948 (GRCm39) V161A probably damaging Het
Arhgef18 T C 8: 3,500,317 (GRCm39) I541T possibly damaging Het
Atg14 T C 14: 47,788,802 (GRCm39) K184E probably benign Het
Casp8 T C 1: 58,883,929 (GRCm39) V432A probably damaging Het
Cela1 T C 15: 100,580,794 (GRCm39) Y91C probably damaging Het
Col24a1 G T 3: 145,230,037 (GRCm39) G1493* probably null Het
Dnah7a C T 1: 53,486,524 (GRCm39) E3346K probably benign Het
Dock5 A T 14: 67,993,941 (GRCm39) S1845T probably benign Het
Dtx3 A G 10: 127,029,058 (GRCm39) I60T possibly damaging Het
Eif1ad8 A T 12: 87,563,935 (GRCm39) D90V probably damaging Het
F2rl1 A G 13: 95,649,796 (GRCm39) L362P probably damaging Het
Gal3st2c T C 1: 93,936,463 (GRCm39) F136S probably damaging Het
Gm26678 T C 3: 54,540,504 (GRCm39) noncoding transcript Het
Impg1 A G 9: 80,252,611 (GRCm39) L523P probably damaging Het
Ip6k2 G A 9: 108,682,847 (GRCm39) R319Q probably benign Het
Klhl23 T C 2: 69,654,516 (GRCm39) F129L probably damaging Het
Krt71 T C 15: 101,643,129 (GRCm39) T460A probably benign Het
Madd C T 2: 90,997,373 (GRCm39) R746Q probably benign Het
Med12l T G 3: 59,164,644 (GRCm39) probably null Het
Mrps30 T C 13: 118,523,376 (GRCm39) D132G probably damaging Het
Myh6 T G 14: 55,197,819 (GRCm39) M440L probably benign Het
Myh7 T A 14: 55,228,575 (GRCm39) S205C probably benign Het
Nxpe4 A T 9: 48,310,137 (GRCm39) T467S probably damaging Het
Or13a20 T C 7: 140,232,653 (GRCm39) Y254H probably damaging Het
Or1e17 A G 11: 73,831,182 (GRCm39) T37A possibly damaging Het
Or7g30 T A 9: 19,352,886 (GRCm39) L226I probably damaging Het
Pcdh7 G A 5: 57,876,631 (GRCm39) G62D possibly damaging Het
Pde3b A G 7: 114,120,923 (GRCm39) T683A possibly damaging Het
Plcb2 A T 2: 118,540,047 (GRCm39) L1082Q probably damaging Het
Rin2 C T 2: 145,702,366 (GRCm39) T354I probably benign Het
Rufy4 T C 1: 74,186,822 (GRCm39) C537R probably damaging Het
Skint11 C A 4: 114,101,856 (GRCm39) Q99K probably benign Het
Slc6a6 T C 6: 91,718,257 (GRCm39) V357A probably damaging Het
Slitrk6 T C 14: 110,987,580 (GRCm39) E709G probably benign Het
Spc24 T C 9: 21,667,498 (GRCm39) probably null Het
Tas2r140 A T 6: 133,031,915 (GRCm39) V281D probably damaging Het
Tfcp2l1 G A 1: 118,589,795 (GRCm39) R285H probably benign Het
Tmem132d A G 5: 128,509,389 (GRCm39) S14P possibly damaging Het
Tulp2 A G 7: 45,171,298 (GRCm39) K360E probably damaging Het
Vmn1r60 A G 7: 5,547,803 (GRCm39) V99A probably benign Het
Zfp599 T A 9: 22,161,041 (GRCm39) K375* probably null Het
Other mutations in Chrnb3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00227:Chrnb3 APN 8 27,875,129 (GRCm39) missense probably benign 0.13
IGL01655:Chrnb3 APN 8 27,884,202 (GRCm39) missense probably damaging 1.00
IGL02124:Chrnb3 APN 8 27,886,832 (GRCm39) unclassified probably benign
IGL02403:Chrnb3 APN 8 27,883,836 (GRCm39) missense probably damaging 1.00
IGL02474:Chrnb3 APN 8 27,883,397 (GRCm39) missense probably damaging 1.00
IGL02903:Chrnb3 APN 8 27,876,834 (GRCm39) missense probably damaging 0.96
R0178:Chrnb3 UTSW 8 27,883,392 (GRCm39) missense probably damaging 1.00
R0736:Chrnb3 UTSW 8 27,875,078 (GRCm39) missense probably benign 0.00
R1695:Chrnb3 UTSW 8 27,883,728 (GRCm39) missense probably damaging 1.00
R2051:Chrnb3 UTSW 8 27,876,839 (GRCm39) missense probably damaging 1.00
R2091:Chrnb3 UTSW 8 27,884,262 (GRCm39) missense probably damaging 1.00
R2313:Chrnb3 UTSW 8 27,883,809 (GRCm39) missense probably damaging 1.00
R3020:Chrnb3 UTSW 8 27,886,812 (GRCm39) missense probably benign
R3981:Chrnb3 UTSW 8 27,884,034 (GRCm39) missense probably damaging 1.00
R4276:Chrnb3 UTSW 8 27,883,779 (GRCm39) missense probably damaging 1.00
R4422:Chrnb3 UTSW 8 27,886,761 (GRCm39) missense possibly damaging 0.84
R4515:Chrnb3 UTSW 8 27,875,118 (GRCm39) missense probably damaging 1.00
R4688:Chrnb3 UTSW 8 27,884,147 (GRCm39) missense probably damaging 1.00
R4931:Chrnb3 UTSW 8 27,884,258 (GRCm39) missense probably damaging 0.99
R5164:Chrnb3 UTSW 8 27,884,160 (GRCm39) missense probably damaging 1.00
R6333:Chrnb3 UTSW 8 27,883,355 (GRCm39) missense probably damaging 0.96
R6454:Chrnb3 UTSW 8 27,883,403 (GRCm39) missense probably damaging 1.00
R7070:Chrnb3 UTSW 8 27,883,989 (GRCm39) missense probably damaging 1.00
R8060:Chrnb3 UTSW 8 27,884,588 (GRCm39) missense unknown
R8156:Chrnb3 UTSW 8 27,883,682 (GRCm39) missense probably benign 0.13
R8421:Chrnb3 UTSW 8 27,886,718 (GRCm39) missense probably damaging 1.00
R8884:Chrnb3 UTSW 8 27,883,946 (GRCm39) missense possibly damaging 0.90
R9244:Chrnb3 UTSW 8 27,884,594 (GRCm39) missense unknown
R9459:Chrnb3 UTSW 8 27,883,884 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- CCATGGTCGACCTCATTCTG -3'
(R):5'- CGTGACAATAATAGACAGCGTG -3'

Sequencing Primer
(F):5'- ATGGTCGACCTCATTCTGATCAATG -3'
(R):5'- AGACAGCGTGACAAATATCATAATG -3'
Posted On 2015-06-12