rs112365440
Variant summary
Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2
The NM_001035.3(RYR2):c.9067+12C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00215 in 1,601,008 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001035.3 intron
Scores
Clinical Significance
Conservation
Publications
- arrhythmogenic right ventricular dysplasia 2Inheritance: AD Classification: DEFINITIVE, NO_KNOWN Submitted by: Laboratory for Molecular Medicine, Ambry Genetics
- catecholaminergic polymorphic ventricular tachycardiaInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
- catecholaminergic polymorphic ventricular tachycardia 1Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- hypertrophic cardiomyopathyInheritance: AD Classification: LIMITED Submitted by: ClinGen
- arrhythmogenic right ventricular cardiomyopathyInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -11 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RYR2 | ENST00000366574.7 | c.9067+12C>T | intron_variant | Intron 63 of 104 | 1 | NM_001035.3 | ENSP00000355533.2 | |||
| RYR2 | ENST00000661330.2 | c.9067+12C>T | intron_variant | Intron 63 of 105 | ENSP00000499393.2 | |||||
| RYR2 | ENST00000609119.2 | n.*102+6939C>T | intron_variant | Intron 61 of 103 | 5 | ENSP00000499659.2 |
Frequencies
GnomAD3 genomes AF: 0.00139 AC: 211AN: 151822Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.00147 AC: 352AN: 239310 AF XY: 0.00155 show subpopulations
GnomAD4 exome AF: 0.00223 AC: 3234AN: 1449068Hom.: 5 Cov.: 29 AF XY: 0.00215 AC XY: 1551AN XY: 720782 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00139 AC: 211AN: 151940Hom.: 0 Cov.: 31 AF XY: 0.00140 AC XY: 104AN XY: 74258 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:5
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c.9067+12C>T in intron 63 of RYR2: This variant is not expected to have clinical significance because it is not located within the splice consensus sequence. It has been identified in 0.3% (66/25344) of Finnish chromosomes by the Genome Agg regation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs112365440). -
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Variant summary: RYR2 c.9067+12C>T alters a conserved nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.0015 in 239310 control chromosomes. The observed variant frequency is approximately 43- fold the estimated maximal expected allele frequency for a pathogenic variant in RYR2 causing Catecholaminergic Polymorphic Ventricular Tachycardia phenotype (3.4e-05), strongly suggesting that the variant is benign. c.9067+12C>T has been reported in the literature in at least one individual affected with dilated cardiomyopathy (DCM, Pugh_2014). This report does not provide unequivocal conclusions about association of the variant with Catecholaminergic Polymorphic Ventricular Tachycardia. Co-occurrences with other pathogenic/ likely pathogenic variants have been reported (TTN c.69717_69718insC, p.Ser23240GlnfsX19,Pugh_2014 and KCNQ1 c.153C>G,p.Tyr51X, internal sample), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Three ClinVar submissions (evaluation after 2014) cite the variant as benign (n=2) and uncertain significance (n=1). Based on the evidence outlined above, the variant was classified as benign. -
not provided Benign:4
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Catecholaminergic polymorphic ventricular tachycardia 1 Benign:2
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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -
Arrhythmogenic right ventricular dysplasia 2 Uncertain:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at