Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV000694432 | SCV000822878 | uncertain significance | Gastrointestinal stromal tumor; Paragangliomas 3 | 2018-05-22 | 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: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This sequence change replaces alanine with glycine at codon 66 of the SDHC protein (p.Ala66Gly). The alanine residue is moderately conserved and there is a small physicochemical difference between alanine and glycine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with SDHC-related disease. |
| Ambry Genetics | RCV004025195 | SCV005019718 | uncertain significance | Hereditary cancer-predisposing syndrome | 2023-12-22 | criteria provided, single submitter | clinical testing | The p.A66G variant (also known as c.197C>G), located in coding exon 4 of the SDHC gene, results from a C to G substitution at nucleotide position 197. The alanine at codon 66 is replaced by glycine, an amino acid with similar properties. This amino acid position is conserved. 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. |