rs118192113
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP2PP3_Strong
The NM_000540.3(RYR1):c.212C>A(p.Ser71Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★★).
Frequency
Genomes: not found (cov: 31)
Consequence
RYR1
NM_000540.3 missense
NM_000540.3 missense
Scores
9
6
2
Clinical Significance
Conservation
PhyloP100: 7.84
Genes affected
RYR1 (HGNC:10483): (ryanodine receptor 1) This gene encodes a ryanodine receptor found in skeletal muscle. The encoded protein functions as a calcium release channel in the sarcoplasmic reticulum but also serves to connect the sarcoplasmic reticulum and transverse tubule. Mutations in this gene are associated with malignant hyperthermia susceptibility, central core disease, and minicore myopathy with external ophthalmoplegia. Alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, RYR1
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.971
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
RYR1 | NM_000540.3 | c.212C>A | p.Ser71Tyr | missense_variant | 3/106 | ENST00000359596.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
RYR1 | ENST00000359596.8 | c.212C>A | p.Ser71Tyr | missense_variant | 3/106 | 5 | NM_000540.3 | A2 | |
RYR1 | ENST00000355481.8 | c.212C>A | p.Ser71Tyr | missense_variant | 3/105 | 1 | P4 | ||
RYR1 | ENST00000599547.6 | c.212C>A | p.Ser71Tyr | missense_variant, NMD_transcript_variant | 3/80 | 2 |
Frequencies
GnomAD3 genomes ? Cov.: 31
GnomAD3 genomes
?
Cov.:
31
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome ? Cov.: 31
GnomAD4 genome
?
Cov.:
31
ClinVar
Significance: Uncertain significance
Submissions summary: Pathogenic:2Uncertain:3Other:1
Revision: reviewed by expert panel
LINK: link
Submissions by phenotype
Malignant hyperthermia, susceptibility to, 1 Uncertain:2
Uncertain significance, reviewed by expert panel | curation | ClinGen Malignant Hyperthermia Susceptibility Variant Curation Expert Panel, ClinGen | Apr 06, 2023 | This pathogenicity assessment is relevant only for malignant hyperthermia susceptibility (MHS) inherited in an autosomal dominant pattern. Variants in RYR1 can also cause other myopathies inherited in an autosomal dominant pattern or in an autosomal recessive pattern. Some of these disorders may predispose individuals to malignant hyperthermia. RYR1 variants may also contribute to a malignant hyperthermia reaction in combination with other genetic and non-genetic factors and the clinician needs to consider such factors in making management decisions. This sequence variant predicts a substitution of serine with tyrosine at codon 71 of the RYR1 protein, p.(Ser71Tyr). This variant was not present in a large population database (gnomAD) at the time this variant was interpreted. This variant has been reported in the literature in individuals with autosomal recessive myopathies. It has also been described in individuals that were noted to be MHS but without a clear history of an MH reaction. These cases did not meet the criteria for PS4 according to the ClinGen RYR1 VCEP for MHS, (PMID:16835904, PMID:16940308, PMID:17365175). Functional studies published for this variant test the variant in trans with other variants and these studies were not considered for PS3/BS3, (PMID:16940308). This variant resides in a region of RYR1 considered to be a hotspot for pathogenic variants that contribute to MHS, PM1 (PMID:21118704). A REVEL score >0.85 (0.937) supports a pathogenic status for this variant, PP3_Moderate. This variant has been classified as a Variant of Unknown Significance. Criteria implemented: PM1, PP3_Moderate. - |
Uncertain significance, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Feb 24, 2023 | - - |
not provided Uncertain:1Other:1
Uncertain significance, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Jun 22, 2015 | - - |
not provided, no classification provided | literature only | Leiden Muscular Dystrophy (RYR1) | - | - - |
Central core myopathy Pathogenic:1
Pathogenic, no assertion criteria provided | curation | GeneReviews | May 11, 2010 | - - |
RYR1-related disorder Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Mar 24, 2023 | In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. Experimental studies have shown that this missense change affects RYR1 function (PMID: 16940308). 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. ClinVar contains an entry for this variant (Variation ID: 65993). This missense change has been observed in individual(s) with dominant malignant hyperthermia (PMID: 16835904). This variant has been reported in individual(s) with recessive myopathies (PMID: 16940308, 30611313); however, the role of the variant in this condition is currently unclear. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces serine, which is neutral and polar, with tyrosine, which is neutral and polar, at codon 71 of the RYR1 protein (p.Ser71Tyr). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Uncertain
Dann
Benign
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Pathogenic
D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D
MetaSVM
Pathogenic
D
MutationAssessor
Uncertain
M;M
MutationTaster
Benign
D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D
REVEL
Pathogenic
Sift
Uncertain
D;D
Polyphen
D;D
Vest4
MutPred
Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);
MVP
MPC
1.2
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at