Total submissions: 1
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV001337201 | SCV001530792 | uncertain significance | Episodic kinesigenic dyskinesia | 2023-10-12 | criteria provided, single submitter | clinical testing | This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 308 of the PRRT2 protein (p.Arg308Gly). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with paroxysmal kinesigenic dyskinesia (PMID: 35083789). ClinVar contains an entry for this variant (Variation ID: 1034471). 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 expected to disrupt PRRT2 protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. |