Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV000810668 | SCV000950895 | uncertain significance | DICER1-related tumor predisposition | 2019-07-18 | 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. 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 C25"). This variant has not been reported in the literature in individuals with DICER1-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces methionine with threonine at codon 1649 of the DICER1 protein (p.Met1649Thr). The methionine residue is highly conserved and there is a moderate physicochemical difference between methionine and threonine. |
| Ambry Genetics | RCV002345836 | SCV002646911 | uncertain significance | Hereditary cancer-predisposing syndrome | 2021-06-23 | criteria provided, single submitter | clinical testing | The p.M1649T variant (also known as c.4946T>C), located in coding exon 22 of the DICER1 gene, results from a T to C substitution at nucleotide position 4946. The methionine at codon 1649 is replaced by threonine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |