Total submissions: 4
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV003534615 | SCV000821374 | uncertain significance | Familial adenomatous polyposis 1 | 2023-05-09 | 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: 572183). This variant has not been reported in the literature in individuals affected with APC-related conditions. This variant is present in population databases (rs770768719, gnomAD 0.006%). This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 273 of the APC protein (p.Thr273Ala). |
Color Diagnostics, |
RCV001184707 | SCV001350743 | uncertain significance | Hereditary cancer-predisposing syndrome | 2021-07-16 | criteria provided, single submitter | clinical testing | This missense variant replaces threonine with alanine at codon 273 of the APC protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 2/250928 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. |
Sema4, |
RCV001184707 | SCV002531626 | uncertain significance | Hereditary cancer-predisposing syndrome | 2021-04-30 | criteria provided, single submitter | curation | |
Ambry Genetics | RCV001184707 | SCV002680456 | uncertain significance | Hereditary cancer-predisposing syndrome | 2022-11-04 | criteria provided, single submitter | clinical testing | The p.T273A variant (also known as c.817A>G), located in coding exon 7 of the APC gene, results from an A to G substitution at nucleotide position 817. The threonine at codon 273 is replaced by alanine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |