ClinVar Miner

Submissions for variant NM_000304.4(PMP22):c.448G>T (p.Gly150Cys) (rs104894624)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
EGL Genetic Diagnostics, Eurofins Clinical Diagnostics RCV000594940 SCV000703278 uncertain significance not provided 2016-12-01 criteria provided, single submitter clinical testing
Invitae RCV001221866 SCV001393934 likely pathogenic Charcot-Marie-Tooth disease, type I 2019-06-05 criteria provided, single submitter clinical testing This sequence change replaces glycine with cysteine at codon 150 of the PMP22 protein (p.Gly150Cys). The glycine residue is highly conserved and there is a large physicochemical difference between glycine and cysteine. This variant is not present in population databases (ExAC no frequency). This variant has been observed to segregate with Dejerine-Sottas disease in a family (PMID: 9544841). ClinVar contains an entry for this variant (Variation ID: 8439). This variant has been reported to affect PMP22 protein function (PMID: 12901701). This variant disrupts the p.Gly150 amino acid residue in PMP22. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 8995589, 26102530, 18795802, 25385046, 10078969, 15474367, 9425015, 15537650, 10982389, 26392352). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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.
OMIM RCV000008954 SCV000029164 pathogenic Dejerine-Sottas syndrome, autosomal dominant 1998-03-01 no assertion criteria provided literature only

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