Total submissions: 1
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Labcorp Genetics |
RCV000803129 | SCV000942990 | uncertain significance | Long QT syndrome | 2022-08-16 | criteria provided, single submitter | clinical testing | 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. ClinVar contains an entry for this variant (Variation ID: 648410). This variant has not been reported in the literature in individuals affected with KCNH2-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.005%). This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 243 of the KCNH2 protein (p.Ser243Arg). |