chr7-137015568-C-A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_001006630.2(CHRM2):​c.703C>A​(p.Leu235Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000149 in 1,612,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

CHRM2
NM_001006630.2 missense

Scores

6
12

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.70

Publications

1 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 -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0077776313).
BP6
Variant 7-137015568-C-A is Benign according to our data. Variant chr7-137015568-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 422877.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001006630.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHRM2
NM_001006630.2
MANE Select
c.703C>Ap.Leu235Met
missense
Exon 4 of 4NP_001006631.1P08172
CHRM2
NM_000739.3
c.703C>Ap.Leu235Met
missense
Exon 4 of 4NP_000730.1P08172
CHRM2
NM_001006626.3
c.703C>Ap.Leu235Met
missense
Exon 5 of 5NP_001006627.1A4D1Q0

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHRM2
ENST00000680005.1
MANE Select
c.703C>Ap.Leu235Met
missense
Exon 4 of 4ENSP00000505686.1P08172
CHRM2
ENST00000320658.9
TSL:1
c.703C>Ap.Leu235Met
missense
Exon 3 of 3ENSP00000319984.5P08172
CHRM2
ENST00000401861.1
TSL:1
c.703C>Ap.Leu235Met
missense
Exon 5 of 5ENSP00000384401.1P08172

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
151870
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00409
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000301
AC:
75
AN:
249576
AF XY:
0.000311
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00403
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000151
AC:
220
AN:
1460890
Hom.:
0
Cov.:
31
AF XY:
0.000143
AC XY:
104
AN XY:
726760
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33434
American (AMR)
AF:
0.0000224
AC:
1
AN:
44610
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.00535
AC:
211
AN:
39476
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53342
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111572
Other (OTH)
AF:
0.000116
AC:
7
AN:
60334
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
18
36
55
73
91
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000138
AC:
21
AN:
151986
Hom.:
0
Cov.:
32
AF XY:
0.000135
AC XY:
10
AN XY:
74274
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41500
American (AMR)
AF:
0.00
AC:
0
AN:
15234
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00410
AC:
21
AN:
5122
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4808
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67936
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000148
Hom.:
0
Bravo
AF:
0.000302
ExAC
AF:
0.000297
AC:
36
Asia WGS
AF:
0.000867
AC:
3
AN:
3476

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
1
Dilated Cardiomyopathy, Dominant (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
20
DANN
Uncertain
0.98
DEOGEN2
Benign
0.067
T
Eigen
Uncertain
0.26
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.0078
T
MetaSVM
Benign
-0.69
T
MutationAssessor
Uncertain
2.4
M
PhyloP100
1.7
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
0.090
N
REVEL
Benign
0.14
Sift
Benign
0.11
T
Sift4G
Benign
0.12
T
Polyphen
0.76
P
Vest4
0.24
MVP
0.86
MPC
1.2
ClinPred
0.11
T
GERP RS
3.6
Varity_R
0.13
gMVP
0.20
Mutation Taster
=90/10
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: rs138886480; hg19: chr7-136700315; API