rs747933306

Positions:

chr1-237708918-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP2PP3BS2

The NM_001035.3(RYR2):c.9962C>T(p.Pro3321Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,611,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. P3321P) has been classified as Likely benign.

Frequency

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

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

RYR2
NM_001035.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 4.12

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 -2 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.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.84

BS2

High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RYR2	NM_001035.3 linkuse as main transcript	c.9962C>T	p.Pro3321Leu	missense_variant	69/105	ENST00000366574.7	NP_001026.2	Q92736-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
RYR2	ENST00000366574.7 linkuse as main transcript	c.9962C>T	p.Pro3321Leu	missense_variant	69/105	1	NM_001035.3	ENSP00000355533.2	Q92736-1
RYR2	ENST00000609119.2 linkuse as main transcript	n.*997C>T		non_coding_transcript_exon_variant	67/104	5		ENSP00000499659.2	A0A590UK06
RYR2	ENST00000609119.2 linkuse as main transcript	n.*997C>T		3_prime_UTR_variant	67/104	5		ENSP00000499659.2	A0A590UK06

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152022

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:

0.0000122

AC:

AN:

246898

Hom.:

AF XY:

0.00000746

AC XY:

AN XY:

133962

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000329

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000896

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000110

AC:

AN:

1459570

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726056

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152022

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74242

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

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Mar 11, 2015

The p.Pro3321Leu variant in RYR2 has not been previously reported in individuals with cardiomyopathy, but has been identified in 1/14986 South Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org). Com putational prediction tools and conservation analysis suggest that this variant may impact the protein, though this information is not predictive enough to dete rmine pathogenicity. In summary, the clinical significance of the p.Pro3321Leu v ariant is uncertain. -

Catecholaminergic polymorphic ventricular tachycardia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Nov 02, 2023

Variant of Uncertain Significance due to insufficient evidence: This missense variant is located in the cytoplasmic domain of the RYR2 protein. Computational prediction tools and conservation analyses suggest that this variant may have deleterious impact on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant nor has this variant been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 3/243966 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Available evidence is insufficient to determine the pathogenicity of this variant conclusively. -

Cardiomyopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Jul 21, 2023

This variant is located in the RYR2 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, 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 3/246898 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. -

Catecholaminergic polymorphic ventricular tachycardia 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

May 25, 2023

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. 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 expected to disrupt RYR2 protein function. ClinVar contains an entry for this variant (Variation ID: 229229). This variant has not been reported in the literature in individuals affected with RYR2-related conditions. This variant is present in population databases (rs747933306, gnomAD 0.003%). This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 3321 of the RYR2 protein (p.Pro3321Leu). -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 15, 2024

The p.P3321L variant (also known as c.9962C>T), located in coding exon 69 of the RYR2 gene, results from a C to T substitution at nucleotide position 9962. The proline at codon 3321 is replaced by leucine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.74

BayesDel_addAF

Benign

-0.036

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.95

D;D

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

1.0

D;D

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.84

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.9

M;.

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-9.4

D;.

REVEL

Uncertain

0.51

Sift

Pathogenic

0.0

D;.

Polyphen

1.0

D;.

Vest4

0.85

MutPred

0.48

Loss of loop (P = 0.0112);.;

MVP

0.65

MPC

1.0

ClinPred

1.0

GERP RS

5.7

Varity_R

0.84

gMVP

0.77

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