Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV001211193 | SCV001382720 | uncertain significance | Lethal congenital glycogen storage disease of heart | 2024-04-22 | criteria provided, single submitter | clinical testing | This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 231 of the PRKAG2 protein (p.Leu231Val). This variant is present in population databases (rs745772277, gnomAD 0.001%). This variant has not been reported in the literature in individuals affected with PRKAG2-related conditions. ClinVar contains an entry for this variant (Variation ID: 941410). 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 PRKAG2 protein function with a negative predictive value of 95%. 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. |
| Ambry Genetics | RCV002375160 | SCV002668199 | uncertain significance | Cardiovascular phenotype | 2022-07-08 | criteria provided, single submitter | clinical testing | The p.L231V variant (also known as c.691C>G), located in coding exon 5 of the PRKAG2 gene, results from a C to G substitution at nucleotide position 691. The leucine at codon 231 is replaced by valine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |