1-239907303-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001375978.1(CHRM3):​c.-19-130T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.221 in 640,720 control chromosomes in the GnomAD database, including 16,321 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.23 ( 4334 hom., cov: 32)
Exomes 𝑓: 0.22 ( 11987 hom. )

Consequence

CHRM3
NM_001375978.1 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.28
Variant links:
Genes affected
CHRM3 (HGNC:1952): (cholinergic receptor muscarinic 3) 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 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 3 controls smooth muscle contraction and its stimulation causes secretion of glandular tissue. Alternative promoter use and alternative splicing results in multiple transcript variants that have different tissue specificities. [provided by RefSeq, Dec 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 1-239907303-T-C is Benign according to our data. Variant chr1-239907303-T-C is described in ClinVar as [Benign]. Clinvar id is 1253741.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.365 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHRM3NM_001375978.1 linkuse as main transcriptc.-19-130T>C intron_variant ENST00000676153.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHRM3ENST00000676153.1 linkuse as main transcriptc.-19-130T>C intron_variant NM_001375978.1 P1

Frequencies

GnomAD3 genomes
AF:
0.234
AC:
35639
AN:
151994
Hom.:
4323
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.273
Gnomad AMI
AF:
0.172
Gnomad AMR
AF:
0.254
Gnomad ASJ
AF:
0.224
Gnomad EAS
AF:
0.379
Gnomad SAS
AF:
0.212
Gnomad FIN
AF:
0.220
Gnomad MID
AF:
0.250
Gnomad NFE
AF:
0.200
Gnomad OTH
AF:
0.251
GnomAD4 exome
AF:
0.216
AC:
105780
AN:
488608
Hom.:
11987
AF XY:
0.215
AC XY:
54983
AN XY:
255618
show subpopulations
Gnomad4 AFR exome
AF:
0.271
Gnomad4 AMR exome
AF:
0.276
Gnomad4 ASJ exome
AF:
0.222
Gnomad4 EAS exome
AF:
0.318
Gnomad4 SAS exome
AF:
0.199
Gnomad4 FIN exome
AF:
0.223
Gnomad4 NFE exome
AF:
0.200
Gnomad4 OTH exome
AF:
0.229
GnomAD4 genome
AF:
0.235
AC:
35683
AN:
152112
Hom.:
4334
Cov.:
32
AF XY:
0.234
AC XY:
17399
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.273
Gnomad4 AMR
AF:
0.254
Gnomad4 ASJ
AF:
0.224
Gnomad4 EAS
AF:
0.379
Gnomad4 SAS
AF:
0.212
Gnomad4 FIN
AF:
0.220
Gnomad4 NFE
AF:
0.201
Gnomad4 OTH
AF:
0.254
Alfa
AF:
0.226
Hom.:
1134
Bravo
AF:
0.242
Asia WGS
AF:
0.299
AC:
1038
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxNov 12, 2018This variant is associated with the following publications: (PMID: 17130513) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.79
DANN
Benign
0.24

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs3738435; hg19: chr1-240070603; COSMIC: COSV55086380; API