ClinVar Miner

Submissions for variant NM_000540.3(RYR1):c.5009G>A (p.Arg1670His)

gnomAD frequency: 0.00001  dbSNP: rs1248039154
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000595041 SCV000706344 uncertain significance not provided 2017-02-08 criteria provided, single submitter clinical testing
Invitae RCV000806473 SCV000946476 uncertain significance RYR1-related disorder 2022-07-26 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1670 of the RYR1 protein (p.Arg1670His). This variant is present in population databases (no rsID available, gnomAD 0.007%). 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: 500414). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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.
Fulgent Genetics, Fulgent Genetics RCV002483623 SCV002781195 uncertain significance Central core myopathy; Malignant hyperthermia, susceptibility to, 1; Congenital multicore myopathy with external ophthalmoplegia; Congenital myopathy with fiber type disproportion; King Denborough syndrome 2021-07-20 criteria provided, single submitter clinical testing
All of Us Research Program, National Institutes of Health RCV004002462 SCV004838867 uncertain significance Malignant hyperthermia, susceptibility to, 1 2023-10-02 criteria provided, single submitter clinical testing This missense variant replaces arginine with histidine at codon 1670 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 RYR1-related disorders in the literature. This variant has been identified in 2/245942 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.

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