rs377030538
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2
The NM_001035.3(RYR2):c.3484G>A(p.Val1162Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000204 in 1,613,840 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. V1162V) has been classified as Likely benign.
Frequency
Consequence
NM_001035.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.3484G>A | p.Val1162Met | missense_variant | Exon 29 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.3484G>A | non_coding_transcript_exon_variant | Exon 29 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000660292.2 | c.3484G>A | p.Val1162Met | missense_variant | Exon 29 of 106 | ENSP00000499787.2 | ||||
RYR2 | ENST00000659194.3 | c.3484G>A | p.Val1162Met | missense_variant | Exon 29 of 105 | ENSP00000499653.3 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152160Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249158Hom.: 0 AF XY: 0.00000740 AC XY: 1AN XY: 135162
GnomAD4 exome AF: 0.0000205 AC: 30AN: 1461680Hom.: 0 Cov.: 32 AF XY: 0.0000124 AC XY: 9AN XY: 727118
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152160Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74334
ClinVar
Submissions by phenotype
Catecholaminergic polymorphic ventricular tachycardia 1 Uncertain:2
The p.Val1162Met variant in the RYR2 gene has not been previously reported in association with disease. This variant has been identified in 1/112942 European (non-Finnish) chromosomes by the Genome Aggregation Database (http://gnomad.broadinstitute.org/). This variant is present in ClinVar (Variation ID: 463596). The RYR2 gene has fewer missense variants in the general population than expected. A low rate of missense variation may suggest that this gene is intolerant to missense variation. Computational tools predict that this variant is neither deleterious nor benign; however, the accuracy of in silico algorithms is limited. These data were assessed using the ACMG/AMP variant interpretation guidelines. In summary, the significance of the p.Val1162Met variant is uncertain. Additional information is needed to resolve the significance of this variant. [ACMG evidence codes used: PM2; PP2] -
This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 1162 of the RYR2 protein (p.Val1162Met). This variant is present in population databases (rs377030538, gnomAD 0.0009%). 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: 463596). 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. -
Catecholaminergic polymorphic ventricular tachycardia Uncertain:1
This variant replaces valine with methionine at codon 1162 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 not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/249158 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
This variant replaces valine with methionine at codon 1162 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 not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/249158 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. -
Arrhythmogenic right ventricular cardiomyopathy Uncertain:1
Found in patient having exome sequencing for an unrelated indication. No known history of arrhythmogenic right ventricular dysplasia. This interpretation considers GERP score and allele frequency data, in addition to published reports of the variant in the literature, available at the time of review. -
Cardiovascular phenotype Uncertain:1
The p.V1162M variant (also known as c.3484G>A), located in coding exon 29 of the RYR2 gene, results from a G to A substitution at nucleotide position 3484. The valine at codon 1162 is replaced by methionine, an amino acid with highly similar properties. This variant has been reported in an individual(s) in a catecholaminergic polymorphic ventricular tachycardia (CPVT) cohort, but clinical details were limited (Hsu GC et al. J Formos Med Assoc, 2024 Aug:[ePub ahead of print]). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at