ClinVar Miner

Submissions for variant NM_006218.4(PIK3CA):c.788A>G (p.Glu263Gly)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV002416574 SCV002676857 likely benign Inborn genetic diseases 2021-08-26 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Labcorp Genetics (formerly Invitae), Labcorp RCV003120964 SCV003788715 uncertain significance Cowden syndrome 2022-12-08 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: 1761031). This variant has not been reported in the literature in individuals affected with PIK3CA-related conditions. This variant is present in population databases (rs778573303, gnomAD 0.02%). This sequence change replaces glutamic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 263 of the PIK3CA protein (p.Glu263Gly).

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