1-237660889-G-A

Position:

chr1-237660889-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 1P and 7B. PP2BP4_ModerateBP6BS2

The ENST00000366574.7(RYR2):c.8378G>A(p.Arg2793Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000345 in 1,537,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2793W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

RYR2
ENST00000366574.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:3

Conservation

PhyloP100: 3.85

Variant links:

Genes affected

RYR2 (HGNC:10484): (ryanodine receptor 2) This gene encodes a ryanodine receptor found in cardiac muscle sarcoplasmic reticulum. The encoded protein is one of the components of a calcium channel, composed of a tetramer of the ryanodine receptor proteins and a tetramer of FK506 binding protein 1B proteins, that supplies calcium to cardiac muscle. Mutations in this gene are associated with stress-induced polymorphic ventricular tachycardia and arrhythmogenic right ventricular dysplasia. [provided by RefSeq, Jul 2008]

RYR2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), RYR2. . Gene score misZ 5.7809 (greater than the threshold 3.09). Trascript score misZ 6.4158 (greater than threshold 3.09). GenCC has associacion of gene with hypertrophic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, catecholaminergic polymorphic ventricular tachycardia 1, arrhythmogenic right ventricular dysplasia 2, catecholaminergic polymorphic ventricular tachycardia.

BP4

Computational evidence support a benign effect (MetaRNN=0.1433869).

BP6

Variant 1-237660889-G-A is Benign according to our data. Variant chr1-237660889-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 201391.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3}.

BS2

High AC in GnomAd4 at 21 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RYR2	NM_001035.3 linkuse as main transcript	c.8378G>A	p.Arg2793Gln	missense_variant	56/105	ENST00000366574.7	NP_001026.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RYR2	ENST00000366574.7 linkuse as main transcript	c.8378G>A	p.Arg2793Gln	missense_variant	56/105	1	NM_001035.3	ENSP00000355533	P1	Q92736-1
RYR2	ENST00000660292.2 linkuse as main transcript	c.8378G>A	p.Arg2793Gln	missense_variant	56/106			ENSP00000499787
RYR2	ENST00000659194.3 linkuse as main transcript	c.8378G>A	p.Arg2793Gln	missense_variant	56/105			ENSP00000499653
RYR2	ENST00000609119.2 linkuse as main transcript	c.8378G>A	p.Arg2793Gln	missense_variant, NMD_transcript_variant	56/104	5		ENSP00000499659

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000435

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000327

AC:

AN:

153128

Hom.:

AF XY:

0.0000247

AC XY:

AN XY:

81026

show subpopulations

Gnomad AFR exome

AF:

0.000519

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000954

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000231

AC:

AN:

1385662

Hom.:

Cov.:

AF XY:

0.0000205

AC XY:

AN XY:

683108

show subpopulations

Gnomad4 AFR exome

AF:

0.000545

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000130

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000103

Gnomad4 OTH exome

AF:

0.0000349

GnomAD4 genome

AF:

0.000138

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74388

show subpopulations

Gnomad4 AFR

AF:

0.000434

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000986

Hom.:

Bravo

AF:

0.000159

ExAC

AF:

0.0000287

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Catecholaminergic polymorphic ventricular tachycardia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Feb 05, 2024

This missense variant replaces arginine with glutamine at codon 2793 of the RYR2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with RYR2-related disorders in the literature. This variant has been identified in 5/153128 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Cardiomyopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Apr 28, 2023

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Sep 18, 2014

p.Arg2793Gln (CGG>CAG): c.8378 G>A in exon 56 of the RYR2 gene (NM_001035.2). The R2793Q variant has not been published as a mutation, nor has it been reported as a benign polymorphism to our knowledge. The R2793Q variant was not observed in approximately 4,600 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The R2793Q variant is a semi-conservative amino acid substitution, which may impact secondary protein structure as these residues differ in some properties. This substitution occurs at a position that is conserved within mammals. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. However, missense mutations in nearby residues have not been reported, indicating this region of the protein may tolerate change. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic mutation or a rare benign variant. The variant is found in CARDIOMYOPATHY, ARRHYTHMIA panel(s). -

Catecholaminergic polymorphic ventricular tachycardia 1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 28, 2024

- -

RYR2-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 26, 2023

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 12, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.54

D;T

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Uncertain

0.77

LIST_S2

Pathogenic

0.97

D;D

M_CAP

Benign

0.058

MetaRNN

Benign

0.14

T;T

MetaSVM

Uncertain

0.40

MutationAssessor

Benign

1.3

L;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-2.2

N;.

REVEL

Uncertain

0.31

Sift

Benign

0.060

T;.

Polyphen

0.98

D;.

Vest4

0.30

MVP

0.87

MPC

0.45

ClinPred

0.074

GERP RS

5.5

Varity_R

0.16

gMVP

0.31

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over