Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV002421389 | SCV002680304 | uncertain significance | Inborn genetic diseases | 2021-08-14 | criteria provided, single submitter | clinical testing | The p.P272A variant (also known as c.814C>G), located in coding exon 1 of the SMAD6 gene, results from a C to G substitution at nucleotide position 814. The proline at codon 272 is replaced by alanine, an amino acid with highly similar properties. This amino acid position is conserved. 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. |
| Labcorp Genetics |
RCV003533201 | SCV004364446 | uncertain significance | Aortic valve disease 2 | 2023-04-19 | 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 SMAD6 protein function. ClinVar contains an entry for this variant (Variation ID: 1762184). This variant has not been reported in the literature in individuals affected with SMAD6-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces proline, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 272 of the SMAD6 protein (p.Pro272Ala). |