chr7-137015979-C-G

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001006630.2(CHRM2):​c.1114C>G​(p.Pro372Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00102 in 1,613,088 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 3 hom. )

Consequence

CHRM2
NM_001006630.2 missense

Scores

1
2
16

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 5.91

Publications

5 publications found
Variant links:
Genes affected
CHRM2 (HGNC:1951): (cholinergic receptor muscarinic 2) 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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008100629).
BP6
Variant 7-137015979-C-G is Benign according to our data. Variant chr7-137015979-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 227247.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHRM2NM_001006630.2 linkc.1114C>G p.Pro372Ala missense_variant Exon 4 of 4 ENST00000680005.1 NP_001006631.1 P08172A4D1Q0Q6SL56Q86SJ1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CHRM2ENST00000680005.1 linkc.1114C>G p.Pro372Ala missense_variant Exon 4 of 4 NM_001006630.2 ENSP00000505686.1 P08172

Frequencies

GnomAD3 genomes
AF:
0.000724
AC:
110
AN:
151870
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00179
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00122
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00105
AC:
263
AN:
250604
AF XY:
0.000967
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad FIN exome
AF:
0.00305
Gnomad NFE exome
AF:
0.00160
Gnomad OTH exome
AF:
0.000654
GnomAD4 exome
AF:
0.00105
AC:
1531
AN:
1461100
Hom.:
3
Cov.:
31
AF XY:
0.00102
AC XY:
741
AN XY:
726866
show subpopulations
African (AFR)
AF:
0.0000898
AC:
3
AN:
33420
American (AMR)
AF:
0.000157
AC:
7
AN:
44666
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26116
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39648
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86228
European-Finnish (FIN)
AF:
0.00285
AC:
152
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00119
AC:
1320
AN:
1111510
Other (OTH)
AF:
0.000779
AC:
47
AN:
60342
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
101
202
302
403
504
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
46
92
138
184
230
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000724
AC:
110
AN:
151988
Hom.:
0
Cov.:
32
AF XY:
0.000552
AC XY:
41
AN XY:
74260
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41522
American (AMR)
AF:
0.000131
AC:
2
AN:
15240
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5122
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.00179
AC:
19
AN:
10592
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00122
AC:
83
AN:
67916
Other (OTH)
AF:
0.000473
AC:
1
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00103
Hom.:
0
Bravo
AF:
0.000578
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00163
AC:
14
ExAC
AF:
0.00126
AC:
153
EpiCase
AF:
0.00126
EpiControl
AF:
0.000949

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Jan 31, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

p.Pro372Ala in exon 5 of CHRM2: This variant is not expected to have clinical si gnificance because it has been identified in 0.4% (28/6608) of Finnish chromosom es and 0.2% (118/66644) of European chromosomes by the Exome Aggregation Consort ium (ExAC, http://exac.broadinstitute.org; dbSNP rs138806839). -

Dilated Cardiomyopathy, Dominant Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Dec 14, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 23408450) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
20
DANN
Benign
0.86
DEOGEN2
Benign
0.086
T;T;T;T
Eigen
Benign
0.0024
Eigen_PC
Benign
0.21
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.88
.;.;.;D
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.0081
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
2.0
M;M;M;M
PhyloP100
5.9
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.43
N;N;N;N
REVEL
Benign
0.085
Sift
Benign
0.72
T;T;T;T
Sift4G
Benign
0.65
T;T;T;T
Polyphen
0.0020
B;B;B;B
Vest4
0.19
MVP
0.71
MPC
0.56
ClinPred
0.022
T
GERP RS
5.7
Varity_R
0.084
gMVP
0.62
Mutation Taster
=58/42
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs138806839; hg19: chr7-136700726; API