ClinVar Miner

Submissions for variant NM_000540.3(RYR1):c.2989C>T (p.Arg997Ter)

dbSNP: rs758925580
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
PreventionGenetics, part of Exact Sciences RCV000721483 SCV000852555 pathogenic not provided 2019-04-24 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV001385700 SCV001585659 pathogenic RYR1-related disorder 2022-02-03 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 201146). This premature translational stop signal has been observed in individual(s) with congenital myopathy with fiber-type disproportion (PMID: 28357410, 31127727). 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 sequence change creates a premature translational stop signal (p.Arg997*) in the RYR1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in RYR1 are known to be pathogenic (PMID: 20583297, 20839240, 23919265, 28818389).
Revvity Omics, Revvity RCV000721483 SCV002019935 pathogenic not provided 2019-10-21 criteria provided, single submitter clinical testing
All of Us Research Program, National Institutes of Health RCV003996722 SCV004826640 uncertain significance Malignant hyperthermia, susceptibility to, 1 2023-12-18 criteria provided, single submitter clinical testing This variant changes 1 nucleotide in exon 24 of the RYR1 gene, creating a premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. This variant has not been reported in individuals affected with autosomal dominant malignant hyperthermia in the literature, although it is associated with other phenotype(s) (ClinVar variation ID: 201146). This variant has been identified in 1/249108 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of RYR1 function due to truncation variants is not an established disease mechanism for autosomal dominant malignant hyperthermia, although it is associated with other phenotype(s) (clinicalgenome.org; ClinVar variation ID: 201146). Due to insufficient evidence, this variant is classified as a Variant of Uncertain Significance for autosomal dominant malignant hyperthermia.

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