ClinVar Miner

Submissions for variant NM_002693.3(POLG):c.158A>C (p.Gln53Pro)

dbSNP: rs527965158
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Wong Mito Lab, Molecular and Human Genetics, Baylor College of Medicine RCV000758286 SCV000886940 uncertain significance Progressive sclerosing poliodystrophy 2018-10-01 criteria provided, single submitter clinical testing The NM_002693.2:c.158A>C (NP_002684.1:p.Gln53Pro) [GRCH38: NC_000015.10:g.89333597T>G] 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. PM2:This variant is absent in key population databases. BP4:Computational evidence/predictors indicate no impact on the POLG structure, function, or protein-protein interaction. Based on the evidence criteria codes applied, the variant is suggested to be Uncertain Significance.
Labcorp Genetics (formerly Invitae), Labcorp RCV000758286 SCV004267226 uncertain significance Progressive sclerosing poliodystrophy 2022-06-18 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 missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 619316). This variant has not been reported in the literature in individuals affected with POLG-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces glutamine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 53 of the POLG protein (p.Gln53Pro).

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