ClinVar Miner

Submissions for variant NM_000038.6(APC):c.556A>G (p.Arg186Gly)

dbSNP: rs1580379633
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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 RCV001024286 SCV001186271 uncertain significance Hereditary cancer-predisposing syndrome 2022-01-17 criteria provided, single submitter clinical testing The p.R186G variant (also known as c.556A>G), located in coding exon 5 of the APC gene, results from an A to G substitution at nucleotide position 556. The arginine at codon 186 is replaced by glycine, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Invitae RCV003769592 SCV001409120 uncertain significance Familial adenomatous polyposis 1 2022-11-25 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. 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 APC protein function. ClinVar contains an entry for this variant (Variation ID: 825834). This variant has not been reported in the literature in individuals affected with APC-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 186 of the APC protein (p.Arg186Gly).

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