rs114303476
Variant summary
Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2
The NM_001035.3(RYR2):c.14481C>A(p.Ile4827Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00066 in 1,613,708 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. I4827I) has been classified as Likely benign.
Frequency
Consequence
NM_001035.3 synonymous
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Benign. Variant got -19 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.14481C>A | p.Ile4827Ile | synonymous_variant | Exon 101 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.*5573C>A | non_coding_transcript_exon_variant | Exon 100 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000609119.2 | n.*5573C>A | 3_prime_UTR_variant | Exon 100 of 104 | 5 | ENSP00000499659.2 |
Frequencies
GnomAD3 genomes AF: 0.00295 AC: 449AN: 152020Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000971 AC: 242AN: 249190Hom.: 3 AF XY: 0.000865 AC XY: 117AN XY: 135186
GnomAD4 exome AF: 0.000420 AC: 614AN: 1461572Hom.: 6 Cov.: 31 AF XY: 0.000414 AC XY: 301AN XY: 727076
GnomAD4 genome AF: 0.00296 AC: 451AN: 152136Hom.: 0 Cov.: 32 AF XY: 0.00304 AC XY: 226AN XY: 74360
ClinVar
Submissions by phenotype
not specified Benign:6
- -
p.Ile4827Ile in exon 101 of RYR2: This variant is not expected to have clinical significance because it does not alter an amino acid residue, is not located wit hin the splice consensus sequence, and has been identified in 0.9% (86/9800) of African chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broad institute.org; dbSNP rs114303476). -
- -
- -
Variant summary: RYR2 c.14481C>A alters a non-conserved nucleotide resulting in a synonymous change. 5/5 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 0.0011 in 277088 control chromosomes, predominantly within the African subpopulation at a frequency of 0.0093 in the gnomAD database, including 1 homozygote. The observed variant frequency within African control individuals in the gnomAD database is approximately 155-fold above the estimated maximal expected allele frequency for a pathogenic variant in RYR2 causing Arrhythmia phenotype (6e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African origin. To our knowledge, no occurrence of c.14481C>A in individuals affected with Arrhythmia and no experimental evidence demonstrating its impact on protein function have been reported. Four ClinVar submissions from other clinical diagnostic laboratories (evaluation after 2014) cite the variant as "benign." Based on the evidence outlined above, the variant was classified as benign. -
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Benign:4
- -
- -
RYR2: BP4, BP7, BS1 -
- -
Cardiomyopathy Benign:2
- -
- -
Catecholaminergic polymorphic ventricular tachycardia 1 Benign:2
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. -
- -
Catecholaminergic polymorphic ventricular tachycardia Benign:1
- -
Catecholaminergic polymorphic ventricular tachycardia 1;C1832931:Arrhythmogenic right ventricular dysplasia 2;C5542154:Ventricular arrhythmias due to cardiac ryanodine receptor calcium release deficiency syndrome Benign:1
- -
RYR2-related disorder Benign:1
This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Arrhythmogenic right ventricular dysplasia 2 Benign: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). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Cardiovascular phenotype Benign:1
This alteration is classified as 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