Incidental Mutation 'R6716:Chrm2'
ID 529396
Institutional Source Beutler Lab
Gene Symbol Chrm2
Ensembl Gene ENSMUSG00000045613
Gene Name cholinergic receptor, muscarinic 2, cardiac
Synonyms muscarinic acetylcholine receptor 2, M2, AChR M2, Chrm-2
MMRRC Submission 044834-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.073) question?
Stock # R6716 (G1)
Quality Score 225.009
Status Not validated
Chromosome 6
Chromosomal Location 36365019-36505349 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 36501370 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Asparagine at position 409 (I409N)
Ref Sequence ENSEMBL: ENSMUSP00000130874 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000172278]
AlphaFold Q9ERZ4
Predicted Effect probably damaging
Transcript: ENSMUST00000172278
AA Change: I409N

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000130874
Gene: ENSMUSG00000045613
AA Change: I409N

DomainStartEndE-ValueType
Pfam:7tm_1 40 440 2.5e-75 PFAM
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.3%
  • 20x: 95.4%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The muscarinic cholinergic receptors belong to a larger family of G protein-coupled receptors. The functional diversity of these receptors is defined by the binding of acetylcholine to these receptors and includes cellular responses such as adenylate cyclase inhibition, phosphoinositide degeneration, and potassium channel mediation. Muscarinic receptors influence many effects of acetylcholine in the central and peripheral nervous system. The muscarinic cholinergic receptor 2 is involved in mediation of bradycardia and a decrease in cardiac contractility. Multiple alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous mutants have slightly decreased body weight (5%) compared to wild-type animals and are resistant to the tremorogenic, analgesic, and hypothermic responses to oxotremorine. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 19 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Bmp7 C T 2: 172,714,682 (GRCm39) A376T probably damaging Het
Bnip2 T C 9: 69,910,943 (GRCm39) I296T probably damaging Het
Fat3 T A 9: 15,830,565 (GRCm39) T4310S probably benign Het
Kdm2a A G 19: 4,379,130 (GRCm39) S122P probably damaging Het
Krt20 T C 11: 99,322,754 (GRCm39) T294A possibly damaging Het
Macf1 C T 4: 123,402,231 (GRCm39) S635N probably damaging Het
Nphs2 A G 1: 156,148,637 (GRCm39) S242G probably benign Het
Prss23 A C 7: 89,159,055 (GRCm39) I338S probably damaging Het
Rab11fip3 G T 17: 26,210,031 (GRCm39) S1028R probably damaging Het
Rlig1 T G 10: 100,409,478 (GRCm39) I312L probably benign Het
Sec23a C T 12: 59,015,609 (GRCm39) G711D probably benign Het
Slc50a1 T C 3: 89,177,214 (GRCm39) T68A probably damaging Het
Sphkap C T 1: 83,339,949 (GRCm39) probably null Het
Tas2r122 A T 6: 132,688,860 (GRCm39) I11N probably damaging Het
Tpr C T 1: 150,290,516 (GRCm39) R782C probably damaging Het
Vps13c T C 9: 67,858,749 (GRCm39) L2733P probably benign Het
Vtn C T 11: 78,391,052 (GRCm39) R211C probably damaging Het
Xrcc1 T C 7: 24,266,571 (GRCm39) probably null Het
Zc2hc1b T C 10: 13,047,027 (GRCm39) D28G probably damaging Het
Other mutations in Chrm2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00264:Chrm2 APN 6 36,500,326 (GRCm39) missense probably damaging 1.00
IGL00495:Chrm2 APN 6 36,500,355 (GRCm39) missense possibly damaging 0.61
IGL01011:Chrm2 APN 6 36,501,373 (GRCm39) missense probably benign 0.41
IGL01482:Chrm2 APN 6 36,500,692 (GRCm39) missense possibly damaging 0.95
R0101:Chrm2 UTSW 6 36,501,430 (GRCm39) missense probably damaging 1.00
R0390:Chrm2 UTSW 6 36,501,046 (GRCm39) missense probably benign 0.06
R0539:Chrm2 UTSW 6 36,500,641 (GRCm39) missense possibly damaging 0.69
R0972:Chrm2 UTSW 6 36,501,401 (GRCm39) missense possibly damaging 0.56
R2106:Chrm2 UTSW 6 36,500,382 (GRCm39) missense probably damaging 1.00
R3552:Chrm2 UTSW 6 36,500,745 (GRCm39) missense probably damaging 1.00
R4431:Chrm2 UTSW 6 36,501,097 (GRCm39) missense probably benign
R4910:Chrm2 UTSW 6 36,501,168 (GRCm39) missense probably benign 0.19
R5358:Chrm2 UTSW 6 36,500,290 (GRCm39) missense probably damaging 1.00
R5846:Chrm2 UTSW 6 36,500,385 (GRCm39) missense probably damaging 0.98
R6108:Chrm2 UTSW 6 36,500,230 (GRCm39) missense probably damaging 1.00
R6418:Chrm2 UTSW 6 36,500,674 (GRCm39) missense probably damaging 1.00
R6628:Chrm2 UTSW 6 36,500,292 (GRCm39) missense probably damaging 1.00
R6677:Chrm2 UTSW 6 36,501,027 (GRCm39) missense probably damaging 0.99
R7658:Chrm2 UTSW 6 36,500,184 (GRCm39) missense probably benign 0.00
R8004:Chrm2 UTSW 6 36,500,221 (GRCm39) missense probably damaging 1.00
R8185:Chrm2 UTSW 6 36,500,824 (GRCm39) missense probably benign 0.00
R8277:Chrm2 UTSW 6 36,500,211 (GRCm39) missense probably benign 0.31
R8557:Chrm2 UTSW 6 36,501,010 (GRCm39) missense probably benign
R9395:Chrm2 UTSW 6 36,501,196 (GRCm39) missense possibly damaging 0.50
R9441:Chrm2 UTSW 6 36,500,955 (GRCm39) missense probably benign 0.04
Z1177:Chrm2 UTSW 6 36,501,542 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AAAGGGTGACGCATGCACAC -3'
(R):5'- ACCTTGTAGCGCCTATGTTC -3'

Sequencing Primer
(F):5'- CCACAGTAGAACTAGTGGGATCGTC -3'
(R):5'- AGCGCCTATGTTCTTGTAATGACAC -3'
Posted On 2018-08-01