Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV001021338 | SCV001182942 | uncertain significance | Hereditary cancer-predisposing syndrome | 2019-08-29 | criteria provided, single submitter | clinical testing | The p.N1293T variant (also known as c.3878A>C), located in coding exon 20 of the DICER1 gene, results from an A to C substitution at nucleotide position 3878. The asparagine at codon 1293 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 tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |
| Invitae | RCV001044923 | SCV001208747 | uncertain significance | DICER1-related tumor predisposition | 2023-09-13 | 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 DICER1 protein function. ClinVar contains an entry for this variant (Variation ID: 824327). This variant has not been reported in the literature in individuals affected with DICER1-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.01%). This sequence change replaces asparagine, which is neutral and polar, with threonine, which is neutral and polar, at codon 1293 of the DICER1 protein (p.Asn1293Thr). |