rs200797340
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM5BP4_ModerateBP6
The NM_000540.3(RYR1):c.9148G>A(p.Val3050Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000992 in 1,613,694 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V3050D) has been classified as Likely pathogenic.
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: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000151 AC: 23AN: 151860Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000147 AC: 37AN: 251348 AF XY: 0.000155 show subpopulations
GnomAD4 exome AF: 0.0000944 AC: 138AN: 1461716Hom.: 1 Cov.: 32 AF XY: 0.0000935 AC XY: 68AN XY: 727190 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000145 AC: 22AN: 151978Hom.: 0 Cov.: 32 AF XY: 0.000135 AC XY: 10AN XY: 74284 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:3
RYR1: PP4 -
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Observed in an individual with centronuclear myopathy through a neuromuscular disorders next-generation sequencing panel (Gonzalez-Quereda et al., 2020); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 32403337, 12668474) -
Malignant hyperthermia, susceptibility to, 1 Uncertain:1
This missense variant replaces valine with isoleucine at codon 3050 of the RYR1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with autosomal dominant malignant hyperthermia in the literature, although it is has been observed in individuals affected with other condition(s) (PMID: 32403337). This variant has been identified in 39/282718 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. -
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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RYR1-related disorder Benign:1
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Malignant hyperthermia of anesthesia Benign:1
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Multiminicore myopathy Benign:1
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Neuromuscular disease, congenital, with uniform type 1 fiber Benign:1
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Central core myopathy Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at