rs1424386

Positions:

• chr7-136895738-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001006630.2(CHRM2):​c.-125+26320G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.645 in 151,980 control chromosomes in the GnomAD database, including 32,279 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 0.64 (32279 hom., cov: 32)
• Consequence: CHRM2 NM_001006630.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.360

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]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.754 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHRM2	NM_001006630.2	c.-125+26320G>A		intron_variant		ENST00000680005.1	NP_001006631.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CHRM2	ENST00000680005.1	c.-125+26320G>A		intron_variant			NM_001006630.2	ENSP00000505686	P1
	ENST00000586239.5	n.274-109847C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.645 AC: 97918 AN: 151862 Hom.: 32224 Cov.: 32

Gnomad AFR AF: 0.761

Gnomad AMI AF: 0.558

Gnomad AMR AF: 0.514

Gnomad ASJ AF: 0.628

Gnomad EAS AF: 0.450

Gnomad SAS AF: 0.521

Gnomad FIN AF: 0.657

Gnomad MID AF: 0.579

Gnomad NFE AF: 0.628

Gnomad OTH AF: 0.637

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

GnomAD4 genome AF: 0.645 AC: 98022 AN: 151980 Hom.: 32279 Cov.: 32 AF XY: 0.642 AC XY: 47665 AN XY: 74272

Gnomad4 AFR AF: 0.761

Gnomad4 AMR AF: 0.513

Gnomad4 ASJ AF: 0.628

Gnomad4 EAS AF: 0.450

Gnomad4 SAS AF: 0.521

Gnomad4 FIN AF: 0.657

Gnomad4 NFE AF: 0.628

Gnomad4 OTH AF: 0.640

Alfa AF: 0.627 Hom.: 12113

Bravo AF: 0.636

Asia WGS AF: 0.525 AC: 1825 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	0.48
DANN	Benign	0.63

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

Other links and lift over

dbSNP: rs1424386; hg19: chr7-136580485;