rs727504134

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001035.3(RYR2):​c.8416C>A​(p.Arg2806Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,986 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. R2806C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

RYR2
NM_001035.3 missense

Scores

2
8
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.17

Publications

0 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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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.
BP4
Computational evidence support a benign effect (MetaRNN=0.40729073).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR2NM_001035.3 linkc.8416C>A p.Arg2806Ser missense_variant Exon 56 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.8416C>A p.Arg2806Ser missense_variant Exon 56 of 105 1 NM_001035.3 ENSP00000355533.2 Q92736-1
RYR2ENST00000661330.2 linkc.8416C>A p.Arg2806Ser missense_variant Exon 56 of 106 ENSP00000499393.2 A0A590UJF6
RYR2ENST00000609119.2 linkn.8416C>A non_coding_transcript_exon_variant Exon 56 of 104 5 ENSP00000499659.2 A0A590UK06

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151986
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1291412
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
631448
African (AFR)
AF:
0.00
AC:
0
AN:
28398
American (AMR)
AF:
0.00
AC:
0
AN:
26060
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22056
East Asian (EAS)
AF:
0.00
AC:
0
AN:
33112
South Asian (SAS)
AF:
0.00
AC:
0
AN:
55134
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45452
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5234
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1023196
Other (OTH)
AF:
0.00
AC:
0
AN:
52770
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151986
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74228
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000242
AC:
1
AN:
41372
American (AMR)
AF:
0.00
AC:
0
AN:
15246
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10548
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.225
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:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Jan 02, 2014
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Catecholaminergic polymorphic ventricular tachycardia 1 Uncertain:1
Sep 11, 2022
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 serine, which is neutral and polar, at codon 2806 of the RYR2 protein (p.Arg2806Ser). This variant is not present in population databases (gnomAD no frequency). 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: 167630). 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
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.58
D;T
Eigen
Benign
-0.056
Eigen_PC
Benign
0.14
FATHMM_MKL
Benign
0.35
N
LIST_S2
Uncertain
0.90
D;D
M_CAP
Uncertain
0.094
D
MetaRNN
Benign
0.41
T;T
MetaSVM
Uncertain
0.34
D
MutationAssessor
Benign
1.9
L;.
PhyloP100
2.2
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-2.4
N;.
REVEL
Uncertain
0.55
Sift
Benign
0.25
T;.
Polyphen
0.15
B;.
Vest4
0.68
MutPred
0.47
Gain of loop (P = 0.0166);.;
MVP
0.83
MPC
0.64
ClinPred
0.92
D
GERP RS
5.5
Varity_R
0.24
gMVP
0.61
Mutation Taster
=38/62
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: rs727504134; hg19: chr1-237824227; API