ClinVar Miner

Submissions for variant NM_181882.2(PRX):c.2164A>G (p.Met722Val) (rs376309142)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000425384 SCV000530630 likely benign not specified 2016-08-03 criteria provided, single submitter clinical testing This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
Invitae RCV000811458 SCV000951725 uncertain significance Charcot-Marie-Tooth disease type 4 2018-10-22 criteria provided, single submitter clinical testing This sequence change replaces methionine with valine at codon 722 of the PRX protein (p.Met722Val). The methionine residue is weakly conserved and there is a small physicochemical difference between methionine and valine. This variant is present in population databases (rs376309142, ExAC 0.008%). This variant has not been reported in the literature in individuals with PRX-related disease. ClinVar contains an entry for this variant (Variation ID: 388340). 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 valine 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 and their clinical significance is uncertain. 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.

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