rs543307

Variant names:

• chr1-239764310-T-C
• rs543307
• NM_001375978.1:c.-146-62942T>C

Your query was ambiguous. Multiple possible variants found:

• chr1-239764310-T-C
• chr1-239764310-T-G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001375978.1(CHRM3):​c.-146-62942T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.704 in 151,990 control chromosomes in the GnomAD database, including 38,099 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.70 (38099 hom., cov: 31)
• Consequence: CHRM3 NM_001375978.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.645
• Publications: 3 publications found

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]

CHRM3-AS2 (HGNC:43725): (CHRM3 antisense RNA 2)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.747 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001375978.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHRM3	NM_001375978.1	MANE Select	c.-146-62942T>C		intron	N/A	NP_001362907.1	P20309
	CHRM3	NM_000740.4		c.-146-62942T>C		intron	N/A	NP_000731.1	P20309
	CHRM3	NM_001347716.2		c.-375-62543T>C		intron	N/A	NP_001334645.1	P20309

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHRM3	ENST00000676153.1	MANE Select	c.-146-62942T>C		intron	N/A	ENSP00000502667.1	P20309
	CHRM3	ENST00000255380.8	TSL:1	c.-146-62942T>C		intron	N/A	ENSP00000255380.4	P20309
	CHRM3	ENST00000615928.5	TSL:5	c.-146-62942T>C		intron	N/A	ENSP00000482377.1	P20309

Frequencies

GnomAD3 genomes AF: 0.705 AC: 107014 AN: 151872 Hom.: 38091 Cov.: 31

Gnomad AFR AF: 0.658

Gnomad AMI AF: 0.763

Gnomad AMR AF: 0.719

Gnomad ASJ AF: 0.753

Gnomad EAS AF: 0.447

Gnomad SAS AF: 0.689

Gnomad FIN AF: 0.661

Gnomad MID AF: 0.740

Gnomad NFE AF: 0.752

Gnomad OTH AF: 0.742

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.704 AC: 107065 AN: 151990 Hom.: 38099 Cov.: 31 AF XY: 0.699 AC XY: 51878 AN XY: 74256

African (AFR) AF: 0.658 AC: 27285 AN: 41452

American (AMR) AF: 0.718 AC: 10979 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.753 AC: 2610 AN: 3466

East Asian (EAS) AF: 0.447 AC: 2306 AN: 5154

South Asian (SAS) AF: 0.689 AC: 3313 AN: 4808

European-Finnish (FIN) AF: 0.661 AC: 6953 AN: 10522

Middle Eastern (MID) AF: 0.721 AC: 209 AN: 290

European-Non Finnish (NFE) AF: 0.752 AC: 51157 AN: 67990

Other (OTH) AF: 0.737 AC: 1559 AN: 2114

Alfa AF: 0.742 Hom.: 30222

Bravo AF: 0.703

Asia WGS AF: 0.612 AC: 2132 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	0.28
DANN	Benign	0.43
PhyloP100		-0.65
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs543307; hg19: chr1-239927610;