rs149760466

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BS1_SupportingBS2

The NM_001035.3(RYR2):c.3596A>G(p.Asp1199Gly) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000186 in 1,613,408 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

RYR2
NM_001035.3 missense, splice_region

Scores

Splicing: ADA: 0.3523

Clinical Significance

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

Conservation

PhyloP100: 6.25

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 -4 ACMG points.

PP2

Missense variant in the RYR2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 195 curated pathogenic missense variants (we use a threshold of 10). The gene has 55 curated benign missense variants. Gene score misZ: 5.7809 (above the threshold of 3.09). Trascript score misZ: 6.4158 (above the threshold of 3.09). GenCC associations: The gene is linked to hypertrophic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, catecholaminergic polymorphic ventricular tachycardia 1, arrhythmogenic right ventricular dysplasia 2, catecholaminergic polymorphic ventricular tachycardia.

BS1

Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.0000198 (29/1461186) while in subpopulation NFE AF= 0.0000252 (28/1111632). AF 95% confidence interval is 0.0000175. There are 0 homozygotes in gnomad4_exome. There are 16 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR2	NM_001035.3 link	c.3596A>G	p.Asp1199Gly	missense_variant, splice_region_variant	Exon 29 of 105	ENST00000366574.7	NP_001026.2	Q92736-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RYR2	ENST00000366574.7 link	c.3596A>G	p.Asp1199Gly	missense_variant, splice_region_variant	Exon 29 of 105	1	NM_001035.3	ENSP00000355533.2	Q92736-1
RYR2	ENST00000609119.2 link	n.3596A>G		splice_region_variant, non_coding_transcript_exon_variant	Exon 29 of 104	5		ENSP00000499659.2	A0A590UK06
RYR2	ENST00000660292.2 link	c.3596A>G	p.Asp1199Gly	missense_variant, splice_region_variant	Exon 29 of 106			ENSP00000499787.2	A0A590UKB7
RYR2	ENST00000659194.3 link	c.3596A>G	p.Asp1199Gly	missense_variant, splice_region_variant	Exon 29 of 105			ENSP00000499653.3	A0A590UJZ8

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000403

AC:

AN:

247946

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134506

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:

0.00000890

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1461186

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

726810

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:

0.0000252

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152222

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74430

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:2

Jan 17, 2025

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: RYR2 c.3596A>G (p.Asp1199Gly) results in a non-conservative amino acid change located in the Ryanodine receptor, SPRY domain 2 of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 4e-06 in 247946 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.3596A>G has been reported in the literature in individuals affected with Cardiomyopathy (examples: Pugh_2014, Walsh_2016). These report(s) do not provide unequivocal conclusions about association of the variant with Cardiomyopathy. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 24503780, 27532257). ClinVar contains an entry for this variant (Variation ID: 43773). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Sep 20, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The Asp1199Gly variant in RYR2 has not been previously reported in any other ind ividuals with cardiomyopathy, but has been identified in 1/196 Italian chromosom es by the 1000 Genomes Project (dbSNP rs149760466). Computational analyses (bio chemical amino acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) do not provide strong support for or against an impact to the protein. This varian t is located in the last three bases of the exon, which is part of the 5? splice region. Computational tools do not suggest an impact to splicing, though this i nformation is not predictive enough to rule out pathogenicity. In summary, addit ional information is needed to fully assess the clinical significance of this va riant. -

Catecholaminergic polymorphic ventricular tachycardia

Uncertain:1

Jun 28, 2023

All of Us Research Program, National Institutes of Health

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Catecholaminergic polymorphic ventricular tachycardia 1

Uncertain:1

Nov 26, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 1199 of the RYR2 protein (p.Asp1199Gly). This variant is present in population databases (rs149760466, gnomAD 0.0009%). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 27532257). ClinVar contains an entry for this variant (Variation ID: 43773). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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

0.11

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Uncertain

0.040

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.78

D;T

Eigen

Benign

-0.098

Eigen_PC

Benign

0.075

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.073

MetaRNN

Uncertain

0.46

T;T

MetaSVM

Benign

-0.88

MutationAssessor

Benign

0.88

L;.

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-4.0

D;D

REVEL

Uncertain

0.35

Sift

Uncertain

0.026

D;T

Polyphen

0.0020

B;.

Vest4

0.62

MVP

0.94

MPC

1.1

ClinPred

0.73

GERP RS

6.2

Varity_R

0.44

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.35

dbscSNV1_RF

Benign

0.48

SpliceAI score (max)

0.010

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