ClinVar Miner

Submissions for variant NM_000530.8(MPZ):c.335T>C (p.Ile112Thr)

dbSNP: rs1553259662
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000525582 SCV000636246 likely pathogenic Charcot-Marie-Tooth disease, type I 2017-06-28 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has been reported in several individuals affected with Charcot Marie Tooth disease type 1 (PMID: 9452099, 21256749, 26310628, 9888385). This variant is not present in population databases (ExAC no frequency). This sequence change replaces isoleucine with threonine at codon 112 of the MPZ protein (p.Ile112Thr). The isoleucine residue is highly conserved and there is a moderate physicochemical difference between isoleucine and threonine.
Inherited Neuropathy Consortium RCV000789483 SCV000928839 uncertain significance Charcot-Marie-Tooth disease no assertion criteria provided literature only

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