rs955065308

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 5P and 4B. PP2PP3_StrongBS2

The NM_001035.3(RYR2):​c.2216G>A​(p.Arg739His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000056 in 1,607,282 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R739C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

RYR2
NM_001035.3 missense

Scores

1
12
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.99

Publications

7 publications found
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 Gene-Disease associations (from GenCC):
  • arrhythmogenic right ventricular dysplasia 2
    Inheritance: AD Classification: DEFINITIVE, NO_KNOWN Submitted by: Laboratory for Molecular Medicine, Ambry Genetics
  • catecholaminergic polymorphic ventricular tachycardia
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
  • catecholaminergic polymorphic ventricular tachycardia 1
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • arrhythmogenic right ventricular cardiomyopathy
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 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, catecholaminergic polymorphic ventricular tachycardia 1, catecholaminergic polymorphic ventricular tachycardia, arrhythmogenic right ventricular dysplasia 2, arrhythmogenic right ventricular cardiomyopathy.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.955
BS2
High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR2NM_001035.3 linkc.2216G>A p.Arg739His missense_variant Exon 21 of 105 ENST00000366574.7 NP_001026.2 Q92736-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RYR2ENST00000366574.7 linkc.2216G>A p.Arg739His missense_variant Exon 21 of 105 1 NM_001035.3 ENSP00000355533.2 Q92736-1
RYR2ENST00000661330.2 linkc.2216G>A p.Arg739His missense_variant Exon 21 of 106 ENSP00000499393.2 A0A590UJF6
RYR2ENST00000609119.2 linkn.2216G>A non_coding_transcript_exon_variant Exon 21 of 104 5 ENSP00000499659.2 A0A590UK06

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152010
Hom.:
0
Cov.:
32
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:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000403
AC:
1
AN:
247952
AF XY:
0.00000743
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000481
AC:
7
AN:
1455272
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
722796
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33358
American (AMR)
AF:
0.00
AC:
0
AN:
44558
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25972
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39568
South Asian (SAS)
AF:
0.0000117
AC:
1
AN:
85794
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53282
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.00000542
AC:
6
AN:
1106888
Other (OTH)
AF:
0.00
AC:
0
AN:
60112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.439
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152010
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41350
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.0000944
AC:
1
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Catecholaminergic polymorphic ventricular tachycardia Uncertain:1
Dec 01, 2023
All of Us Research Program, National Institutes of Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces arginine with histidine at codon 739 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 been reported in an individual affected with catecholaminergic polymorphic ventricular tachycardia or exercise-induced long QT syndrome (PMID: 19926015). This variant has also been detected in an individual affected with catecholaminergic polymorphic ventricular tachycardia (PMID: 29453246). This variant has been identified in 1/247952 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
Sep 25, 2023
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces arginine with histidine at codon 739 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 been reported in an individual affected with catecholaminergic polymorphic ventricular tachycardia or exercise-induced long QT syndrome (PMID: 19926015). This variant has also been detected in an individual affected with catecholaminergic polymorphic ventricular tachycardia (PMID: 29453246). This variant has been identified in 1/247952 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
Oct 29, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 739 of the RYR2 protein (p.Arg739His). This variant is present in population databases (no rsID available, gnomAD 0.003%). This missense change has been observed in individual(s) with RYR2-related conditions (PMID: 19926015, 32152366). ClinVar contains an entry for this variant (Variation ID: 532387). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt RYR2 protein function with a negative predictive value of 95%. 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
0.31
BayesDel_addAF
Uncertain
0.038
T
BayesDel_noAF
Uncertain
-0.080
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D;T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.081
D
MetaRNN
Pathogenic
0.95
D;D
MetaSVM
Benign
-0.45
T
MutationAssessor
Uncertain
2.2
M;.
PhyloP100
8.0
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-4.0
D;.
REVEL
Uncertain
0.48
Sift
Benign
0.045
D;.
Polyphen
0.99
D;.
Vest4
0.92
MutPred
0.85
Gain of disorder (P = 0.1089);.;
MVP
0.79
MPC
0.85
ClinPred
0.99
D
GERP RS
4.8
Varity_R
0.24
gMVP
0.47
Mutation Taster
=19/81
disease causing

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

Other links and lift over

dbSNP: rs955065308; hg19: chr1-237664023; COSMIC: COSV63716501; API