ClinVar Miner

Submissions for variant NM_000530.8(MPZ):c.200G>C (p.Arg67Pro)

dbSNP: rs201720099
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001856237 SCV002288439 likely pathogenic Charcot-Marie-Tooth disease, type I 2022-11-15 criteria provided, single submitter clinical testing In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. This variant disrupts the p.Arg67 amino acid residue in MPZ. Other variant(s) that disrupt this residue have been observed in individuals with MPZ-related conditions (Invitae), which suggests that this may be a clinically significant amino acid residue. 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 MPZ protein function. ClinVar contains an entry for this variant (Variation ID: 637325). This missense change has been observed in individual(s) with autosomal dominant Charcot-Marie-Tooth disease (PMID: 15642860). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 67 of the MPZ protein (p.Arg67Pro).
Inherited Neuropathy Consortium RCV000789443 SCV000928799 uncertain significance Charcot-Marie-Tooth disease no assertion criteria provided literature only

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