rs566885717
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_001035.3(RYR2):c.1614G>A(p.Ala538Ala) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000807 in 1,611,520 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001035.3 splice_region, synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.1614G>A | p.Ala538Ala | splice_region_variant, synonymous_variant | Exon 17 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.1614G>A | splice_region_variant, non_coding_transcript_exon_variant | Exon 17 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000660292.2 | c.1614G>A | p.Ala538Ala | splice_region_variant, synonymous_variant | Exon 17 of 106 | ENSP00000499787.2 | ||||
RYR2 | ENST00000659194.3 | c.1614G>A | p.Ala538Ala | splice_region_variant, synonymous_variant | Exon 17 of 105 | ENSP00000499653.3 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 151760Hom.: 0 Cov.: 30
GnomAD3 exomes AF: 0.00000805 AC: 2AN: 248480Hom.: 0 AF XY: 0.00000742 AC XY: 1AN XY: 134830
GnomAD4 exome AF: 0.00000548 AC: 8AN: 1459642Hom.: 0 Cov.: 30 AF XY: 0.00000689 AC XY: 5AN XY: 726172
GnomAD4 genome AF: 0.0000329 AC: 5AN: 151878Hom.: 0 Cov.: 30 AF XY: 0.0000404 AC XY: 3AN XY: 74214
ClinVar
Submissions by phenotype
Catecholaminergic polymorphic ventricular tachycardia Uncertain:1
This synonymous variant does not change the amino acid sequence of the RYR2 protein. Splice site prediction tools suggest that this variant may impact RNA splicing. However, this prediction has not been confirmed in published RNA studies. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 2/248480 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 synonymous variant does not change the amino acid sequence of the RYR2 protein. Splice site prediction tools suggest that this variant may impact RNA splicing. However, this prediction has not been confirmed in published RNA studies. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 2/248480 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
This sequence change affects codon 538 of the RYR2 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the RYR2 protein. This variant is present in population databases (rs566885717, 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: 201218). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. -
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