rs779640835
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PP2PP3_ModerateBS2
The NM_001035.3(RYR2):c.3371C>A(p.Pro1124Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,798 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. P1124L) has been classified as Uncertain significance.
Frequency
Consequence
NM_001035.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.3371C>A | p.Pro1124Gln | missense_variant | Exon 28 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.3371C>A | non_coding_transcript_exon_variant | Exon 28 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000660292.2 | c.3371C>A | p.Pro1124Gln | missense_variant | Exon 28 of 106 | ENSP00000499787.2 | ||||
RYR2 | ENST00000659194.3 | c.3371C>A | p.Pro1124Gln | missense_variant | Exon 28 of 105 | ENSP00000499653.3 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152126Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249216Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135206
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461672Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727122
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152126Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74308
ClinVar
Submissions by phenotype
Catecholaminergic polymorphic ventricular tachycardia Uncertain:1
This missense variant replaces proline with glutamine at codon 1124 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 RYR2-related disorders in the literature. This variant has been identified in 1/249216 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. -
not provided Uncertain:1
Has not been previously published as pathogenic or benign to our knowledge; Not observed at a significant frequency in large population cohorts (Lek et al., 2016); 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) -
Catecholaminergic polymorphic ventricular tachycardia 1 Uncertain:1
This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 1124 of the RYR2 protein (p.Pro1124Gln). This variant is present in population databases (no rsID available, 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: 1019959). 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:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at