rs371498385
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_000540.3(RYR1):c.3389G>A(p.Arg1130His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,614,052 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. R1130G) 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
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000592 AC: 9AN: 152074Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000557 AC: 14AN: 251332 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000280 AC: 41AN: 1461860Hom.: 0 Cov.: 31 AF XY: 0.0000316 AC XY: 23AN XY: 727238 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000723 AC: 11AN: 152192Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74406 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
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RYR1-related disorder Uncertain:1
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1130 of the RYR1 protein (p.Arg1130His). This variant is present in population databases (rs371498385, gnomAD 0.02%). This missense change has been observed in individual(s) with clinical features of congenital myopathy (Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 590513). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on RYR1 protein function. 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. -
Central core myopathy Uncertain:1
The missense variant c.3389G>A (p.Arg1130His) in RYR1 gene has not been reported previously as a pathogenic variant nor as a benign variant, to our knowledge. This variant has been reported to the ClinVar database as Uncertain Significance. The p.Arg1130His variant is novel (not in any individuals) in 1000 Genomes and allele frequency of 0.005660% is reported in gnomAD. The amino acid Arg at position 1130 is changed to a His changing protein sequence and it might alter its composition and physico-chemical properties. The amino acid change p.Arg1130His in RYR1 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as 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