ClinVar Miner

Submissions for variant NM_006218.4(PIK3CA):c.3203A>T (p.Asn1068Ile)

dbSNP: rs1725284914
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001217513 SCV001389356 uncertain significance Cowden syndrome 2019-03-29 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This sequence change replaces asparagine with isoleucine at codon 1068 of the PIK3CA protein (p.Asn1068Ile). The asparagine residue is highly conserved and there is a large physicochemical difference between asparagine and isoleucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with PIK3CA-related conditions. 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.

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