Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV001945547 | SCV002189954 | uncertain significance | Aortic valve disease 2 | 2023-11-24 | criteria provided, single submitter | clinical testing | This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 204 of the SMAD6 protein (p.Gly204Ser). This variant is present in population databases (rs746951925, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with SMAD6-related conditions. ClinVar contains an entry for this variant (Variation ID: 1422137). 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 SMAD6 protein function with a negative predictive value of 80%. 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. |
| Ambry Genetics | RCV004044146 | SCV005023743 | uncertain significance | Inborn genetic diseases | 2024-01-29 | criteria provided, single submitter | clinical testing | The p.G204S variant (also known as c.610G>A), located in coding exon 1 of the SMAD6 gene, results from a G to A substitution at nucleotide position 610. The glycine at codon 204 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this alteration remains unclear. |