Total submissions: 1
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Invitae | RCV000529009 | SCV000658024 | uncertain significance | Charcot-Marie-Tooth disease type 4 | 2017-04-05 | criteria provided, single submitter | clinical testing | This sequence change replaces valine with glycine at codon 1374 of the PRX protein (p.Val1374Gly). The valine residue is moderately conserved and there is a moderate physicochemical difference between valine and glycine. This variant is present in population databases (rs773512610, ExAC 0.03%) but has not been reported in the literature in individuals with a PRX-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glycine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies. In summary, this variant is a rare missense change that is not predicted to affect protein function, and is found in the population at an appreciable frequency. This variant is not anticipated to cause disease; however, the available evidence is currently insufficient to prove that conclusively. Therefore, it has been classified as a Variant of Uncertain Significance. |