1-237655896-A-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_001035.3(RYR2):c.8041A>T(p.Met2681Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000453 in 1,611,582 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M2681V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

RYR2
NM_001035.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 3.79

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 -5 ACMG points.

PP2

Missense variant where missense usually causes diseases, RYR2

BP4

Computational evidence support a benign effect (MetaRNN=0.13783103).

BS2

High AC in GnomAdExome at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR2	NM_001035.3 linkuse as main transcript	c.8041A>T	p.Met2681Leu	missense_variant	53/105	ENST00000366574.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR2	ENST00000366574.7 linkuse as main transcript	c.8041A>T	p.Met2681Leu	missense_variant	53/105	1	NM_001035.3	P1	Q92736-1
RYR2	ENST00000660292.2 linkuse as main transcript	c.8041A>T	p.Met2681Leu	missense_variant	53/106
RYR2	ENST00000659194.3 linkuse as main transcript	c.8041A>T	p.Met2681Leu	missense_variant	53/105
RYR2	ENST00000609119.2 linkuse as main transcript	c.8041A>T	p.Met2681Leu	missense_variant, NMD_transcript_variant	53/104	5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000326

AC:

AN:

245374

Hom.:

AF XY:

0.0000376

AC XY:

AN XY:

132988

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000719

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000480

AC:

AN:

1459490

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

725778

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000558

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74280

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

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

Nov 30, 2023

This variant is located in 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 cardiovascular disorders in the literature. This variant has been identified in 10/276760 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

Feb 16, 2022

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jan 21, 2019

A variant of uncertain significance has been identified in the RYR2 gene. The M2681L variant has not been published as pathogenic or been reported as benign to our knowledge. It has been observed in one other individual referred for arrhythmia genetic testing at GeneDx, although no segregation data are available. This variant is observed in 6/125002 (0.005%) alleles from individuals of Non-Finnish European ancestry, 1/18660 (0.005%) alleles from individuals of East Asian ancestry, and 1/23660 (0.004%) alleles from individuals of African ancestry, in large population cohorts (Lek et al., 2016). The M2681L variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. Additionally, this substitution occurs at a position where amino acids with similar properties to methionine (M) are tolerated across species, and leucine (L) is the wild-type residue at this position in at least one non-mammalian species. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. Furthermore, M2681L is not located in one of the three hot-spot regions of the RYR2 gene, where the majority of pathogenic missense variants occur (Medeiros-Domingo et al., 2009). -

Catecholaminergic polymorphic ventricular tachycardia 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Apr 09, 2022

This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 2681 of the RYR2 protein (p.Met2681Leu). This variant is present in population databases (rs768547151, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with RYR2-related conditions. ClinVar contains an entry for this variant (Variation ID: 201284). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RYR2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.0025

BayesDel_noAF

Uncertain

-0.060

Cadd

Benign

Dann

Benign

0.66

DEOGEN2

Benign

0.35

T;T

Eigen

Benign

-0.22

Eigen_PC

Benign

0.050

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.66

T;T

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.14

T;T

MetaSVM

Uncertain

-0.027

MutationAssessor

Benign

0.12

N;.

MutationTaster

Benign

0.96

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-0.17

N;.

REVEL

Uncertain

0.35

Sift

Benign

0.61

T;.

Polyphen

0.18

B;.

Vest4

0.42

MutPred

0.24

Loss of catalytic residue at M2681 (P = 0.0189);.;

MVP

0.54

MPC

0.37

ClinPred

0.12

GERP RS

6.0

Varity_R

0.21

gMVP

0.38

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