rs773211015
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_000540.3(RYR1):c.2107G>A(p.Gly703Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,613,862 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. G703D) has been classified as Uncertain significance.
Frequency
Consequence
NM_000540.3 missense
Scores
Clinical Significance
Conservation
Publications
- malignant hyperthermia, susceptibility to, 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp, Ambry Genetics
- congenital multicore myopathy with external ophthalmoplegiaInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
- RYR1-related myopathyInheritance: AR, AD Classification: DEFINITIVE Submitted by: ClinGen
- central core myopathyInheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
- King-Denborough syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- malignant hyperthermia of anesthesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- autosomal recessive centronuclear myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- benign Samaritan congenital myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- congenital myopathy with myasthenic-like onsetInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- lethal multiple pterygium syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RYR1 | NM_000540.3 | c.2107G>A | p.Gly703Ser | missense_variant | Exon 18 of 106 | ENST00000359596.8 | NP_000531.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RYR1 | ENST00000359596.8 | c.2107G>A | p.Gly703Ser | missense_variant | Exon 18 of 106 | 5 | NM_000540.3 | ENSP00000352608.2 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152158Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000160 AC: 4AN: 249374 AF XY: 0.0000148 show subpopulations
GnomAD4 exome AF: 0.0000116 AC: 17AN: 1461704Hom.: 0 Cov.: 33 AF XY: 0.0000151 AC XY: 11AN XY: 727158 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152158Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1AN XY: 74344 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
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The G703S variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The G703S variant is not observed at a significant frequency in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The G703S variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. This substitution occurs at a position that is conserved across species. In silico analysis predicts this variant is probably damaging to the protein structure/function. In summary, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -
Inborn genetic diseases Uncertain:1
The c.2107G>A (p.G703S) alteration is located in exon 18 (coding exon 18) of the RYR1 gene. This alteration results from a G to A substitution at nucleotide position 2107, causing the glycine (G) at amino acid position 703 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
RYR1-related disorder Uncertain:1
This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 703 of the RYR1 protein (p.Gly703Ser). This variant is present in population databases (rs773211015, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with RYR1-related conditions. ClinVar contains an entry for this variant (Variation ID: 452190). 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 RYR1 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. -
Congenital myopathy with fiber type disproportion;C1840365:King Denborough syndrome;C1850674:Congenital multicore myopathy with external ophthalmoplegia;C2930980:Malignant hyperthermia, susceptibility to, 1;C5830701:Central core myopathy Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at