Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV000694218 | SCV000822652 | uncertain significance | Tuberous sclerosis 2 | 2023-08-29 | criteria provided, single submitter | clinical testing | This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 419 of the TSC2 protein (p.Pro419Leu). This variant is present in population databases (no rsID available, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with TSC2-related conditions. ClinVar contains an entry for this variant (Variation ID: 572759). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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 | RCV002422515 | SCV002677064 | uncertain significance | Hereditary cancer-predisposing syndrome | 2021-06-07 | criteria provided, single submitter | clinical testing | The p.P419L variant (also known as c.1256C>T), located in coding exon 11 of the TSC2 gene, results from a C to T substitution at nucleotide position 1256. The proline at codon 419 is replaced by leucine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. 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. |
Gene |
RCV003236834 | SCV003935548 | uncertain significance | not provided | 2022-12-22 | criteria provided, single submitter | clinical testing | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; A different missense change at this residue (p.(P419S)) has been reported in ClinVar; Has not been previously published as pathogenic or benign to our knowledge |