rs143843083
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong
The NM_000540.3(RYR1):c.12449C>G(p.Ser4150Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,048 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. S4150L) 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 4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152232Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000796 AC: 2AN: 251110 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461698Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2AN XY: 727162 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152350Hom.: 0 Cov.: 32 AF XY: 0.0000268 AC XY: 2AN XY: 74500 show subpopulations
ClinVar
Submissions by phenotype
Malignant hyperthermia, susceptibility to, 1 Uncertain:1
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RYR1-related disorder Uncertain:1
This sequence change replaces serine, which is neutral and polar, with tryptophan, which is neutral and slightly polar, at codon 4150 of the RYR1 protein (p.Ser4150Trp). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 478172). 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 expected to disrupt RYR1 protein function with a positive 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at