NM_001035.3:c.13081G>A
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2
The NM_001035.3(RYR2):c.13081G>A(p.Glu4361Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000435 in 1,610,876 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. E4361Q) 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 -3 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.13081G>A | p.Glu4361Lys | missense_variant | Exon 90 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.*4173G>A | non_coding_transcript_exon_variant | Exon 89 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000609119.2 | n.*4173G>A | 3_prime_UTR_variant | Exon 89 of 104 | 5 | ENSP00000499659.2 |
Frequencies
GnomAD3 genomes AF: 0.0000132 AC: 2AN: 152054Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000404 AC: 1AN: 247476Hom.: 0 AF XY: 0.00000745 AC XY: 1AN XY: 134214
GnomAD4 exome AF: 0.00000343 AC: 5AN: 1458822Hom.: 0 Cov.: 33 AF XY: 0.00000552 AC XY: 4AN XY: 725190
GnomAD4 genome AF: 0.0000132 AC: 2AN: 152054Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74258
ClinVar
Submissions by phenotype
Ventricular arrhythmias due to cardiac ryanodine receptor calcium release deficiency syndrome Uncertain:1
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not provided Uncertain:1
The E4361K variant of uncertain significance in the RYR2 gene has notbeen published as pathogenic or been reported as benign to our knowledge. However, this variant hasbeen observed in one other unrelated individual referred for ARVC genetic testing at GeneDx. This variant is not observed in large population cohorts(Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The E4361Kvariant is a non-conservative amino acid substitution, which is likely to impact secondary proteinstructure as these residues differ in polarity, charge, size and/or other properties. This substitutionoccurs at a position that is conserved in mammal. Furthermore, the E4361K variant is located in oneof the three hot-spot regions of the RYR2 gene, where the majority of pathogenic missense variantsoccur (Medeiros-Domingo et al., 2009). However, in silico analysis is inconsistent in its predictions asto whether or not the variant is damaging to the protein structure/function. -
Catecholaminergic polymorphic ventricular tachycardia 1 Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 4361 of the RYR2 protein (p.Glu4361Lys). This variant is present in population databases (rs794728795, 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: 201343). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae 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. -
Cardiovascular phenotype Uncertain:1
The p.E4361K variant (also known as c.13081G>A), located in coding exon 90 of the RYR2 gene, results from a G to A substitution at nucleotide position 13081. The glutamic acid at codon 4361 is replaced by lysine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at