Total submissions: 4
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV000655551 | SCV000777482 | uncertain significance | RYR1-related disorder | 2022-08-26 | criteria provided, single submitter | clinical testing | This sequence change replaces glutamine, which is neutral and polar, with glutamic acid, which is acidic and polar, at codon 4108 of the RYR1 protein (p.Gln4108Glu). This variant is present in population databases (rs774414325, gnomAD 0.04%). 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: 544418). 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 not expected to disrupt 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. |
| Fulgent Genetics, |
RCV000764197 | SCV000895200 | uncertain significance | Central core myopathy; Malignant hyperthermia, susceptibility to, 1; Congenital multicore myopathy with external ophthalmoplegia; Congenital myopathy with fiber type disproportion | 2018-10-31 | criteria provided, single submitter | clinical testing | |
| All of Us Research Program, |
RCV004004145 | SCV004824631 | uncertain significance | Malignant hyperthermia, susceptibility to, 1 | 2023-12-13 | criteria provided, single submitter | clinical testing | This missense variant replaces glutamine with glutamic acid at codon 4108 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 12/249316 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. |
| Women's Health and Genetics/Laboratory Corporation of America, |
RCV004702260 | SCV005202670 | uncertain significance | not specified | 2024-07-10 | criteria provided, single submitter | clinical testing | Variant summary: RYR1 c.12322C>G (p.Gln4108Glu) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4.8e-05 in 249316 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in RYR1 causing Myopathy, RYR1-Associated, allowing no conclusion about variant significance. To our knowledge, no occurrence of c.12322C>G in individuals affected with Myopathy, RYR1-Associated and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 544418). Based on the evidence outlined above, the variant was classified as uncertain significance. |