Total submissions: 4
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Wong Mito Lab, |
RCV000758433 | SCV000887138 | uncertain significance | Progressive sclerosing poliodystrophy | 2018-10-01 | criteria provided, single submitter | clinical testing | The NM_002693.2:c.1084C>G (NP_002684.1:p.Leu362Val) [GRCH38: NC_000015.10:g.89328771G>C] variant in POLG gene is interpretated to be a Uncertain Significance based on ACMG guidelines (PMID: 25741868). This variant meets the following evidence codes reported in the ACMG-guideline. BP2:The variant is observed in trans/cis with a dominant variant. PM2:This variant is absent in key population databases. Based on the evidence criteria codes applied, the variant is suggested to be Uncertain Significance. |
| Illumina Laboratory Services, |
RCV001119512 | SCV001277923 | uncertain significance | POLG-Related Spectrum Disorders | 2018-01-13 | criteria provided, single submitter | clinical testing | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. |
| Labcorp Genetics |
RCV000758433 | SCV001421210 | uncertain significance | Progressive sclerosing poliodystrophy | 2022-11-01 | 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 362 of the POLG protein (p.Leu362Val). This variant is present in population databases (rs763248358, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with POLG-related conditions. ClinVar contains an entry for this variant (Variation ID: 619404). 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 expected to disrupt POLG 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. |
| Gene |
RCV001578158 | SCV001805697 | uncertain significance | not provided | 2018-12-14 | criteria provided, single submitter | clinical testing | Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge |