Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV000815226 | SCV000955674 | uncertain significance | Mitochondrial complex II deficiency, nuclear type 1; Paragangliomas 5 | 2023-12-18 | criteria provided, single submitter | clinical testing | This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 374 of the SDHA protein (p.Glu374Asp). This variant is present in population databases (rs377283167, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with SDHA-related conditions. ClinVar contains an entry for this variant (Variation ID: 658404). 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 SDHA protein function with a negative predictive value of 95%. 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. |
Gene |
RCV001569248 | SCV001793288 | uncertain significance | not provided | 2020-09-04 | criteria provided, single submitter | clinical testing | Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge |
Ambry Genetics | RCV002433982 | SCV002749172 | uncertain significance | Hereditary cancer-predisposing syndrome | 2023-05-15 | criteria provided, single submitter | clinical testing | The p.E374D variant (also known as c.1122G>T), located in coding exon 9 of the SDHA gene, results from a G to T substitution at nucleotide position 1122. The glutamic acid at codon 374 is replaced by aspartic acid, an amino acid with highly 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. |