rs201131315
Variant summary
Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PP2PP3BP6BS1BS2
The NM_001035.3(RYR2):c.2711A>G(p.Tyr904Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000956 in 1,610,920 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. Y904Y) has been classified as Likely benign.
Frequency
Consequence
NM_001035.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -7 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.2711A>G | p.Tyr904Cys | missense_variant | Exon 23 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.2711A>G | non_coding_transcript_exon_variant | Exon 23 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000660292.2 | c.2711A>G | p.Tyr904Cys | missense_variant | Exon 23 of 106 | ENSP00000499787.2 | ||||
RYR2 | ENST00000659194.3 | c.2711A>G | p.Tyr904Cys | missense_variant | Exon 23 of 105 | ENSP00000499653.3 |
Frequencies
GnomAD3 genomes AF: 0.000164 AC: 25AN: 152214Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000145 AC: 36AN: 248642Hom.: 0 AF XY: 0.000126 AC XY: 17AN XY: 134906
GnomAD4 exome AF: 0.0000884 AC: 129AN: 1458706Hom.: 0 Cov.: 29 AF XY: 0.0000758 AC XY: 55AN XY: 725872
GnomAD4 genome AF: 0.000164 AC: 25AN: 152214Hom.: 0 Cov.: 33 AF XY: 0.000148 AC XY: 11AN XY: 74360
ClinVar
Submissions by phenotype
not provided Uncertain:3Benign:1
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RYR2: BS2 -
Identified in an individual with a sudden cardiac arrest who later received a heart transplant and an individual with facioscapulohumeral muscular dystrophy and hypertrophic cardiomyopathy in the published literature; however, both individuals harbored additional cardiogenetic variants that may explain their phenotypes (Cuenca et al., 2016; Lima et al., 2017); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; 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); This variant is associated with the following publications: (PMID: 23861362, 26899768, 28697927, 19926015, 28404607) -
The RYR2 c.2711A>G; p.Tyr904Cys variant (rs201131315) is reported in the literature in an individual affected with arrhythmogenic right ventricular cardiomyopathy (Forleo 2017). This variant was also found in an individual with hypertrophic cardiomyopathy that had other cardiac disease-related variants that may contribute to the phenotype (Lima da Silva 2018). The p.Tyr904Cys variant is reported in ClinVar (Variation ID: 179436) and is found in the general population with an overall allele frequency of 0.0146% (41/280,054 alleles) in the Genome Aggregation Database. Computational analyses predict that this variant is deleterious (REVEL: 0.956). Due to limited information, the clinical significance of this variant is uncertain at this time. References: Forleo C et al. Targeted next-generation sequencing detects novel gene-phenotype associations and expands the mutational spectrum in cardiomyopathies. PLoS One. 2017 Jul 27;12(7):e0181842. PMID: 28750076. Lima da Silva G et al. A Unique Case of Type-1 Facioscapulohumeral Muscular Dystrophy and Sarcomeric Hypertrophic Cardiomyopathy. Rev Esp Cardiol (Engl Ed). 2018 Sep;71(9):765-766. English, Spanish. PMID: 28697927. -
not specified Uncertain:1
The Tyr904Cys variant in RYR2 has not been previously reported in individuals wi th cardiomyopathy but has been identified in 0.1% (2/1500) chromosomes by the Cl inSeq Project (Ng 2013 and dbSNP rs201131315). Computational analyses (amino aci d biochemical properties, conservation, SIFT, AlignGVGD, PolyPhen-2) suggest tha t the Tyr904Cys variant may impact the protein, though this information is not p redictive enough to determine pathogenicity. Additional information is needed to fully assess its clinical significance. -
Cardiomyopathy Benign:1
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Catecholaminergic polymorphic ventricular tachycardia 1 Benign:1
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RYR2-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Cardiovascular phenotype Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at