De novo PMP2 mutations in families with type 1 Charcot-Marie-Tooth disease

William W. Motley, Paulius Palaima, Sabrina W. Yum, Michael A. Gonzalez, Feifei Tao, Julia V. Wanschitz, Alleene V. Strickland, Wolfgang N. Löscher, Els De Vriendt, Stefan Koppi, Livija Medne, Andreas R. Janecke, Albena Jordanova, Stephan Zuchner, Steven S. Scherer

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

We performed whole exome sequencing on a patient with Charcot-Marie-Tooth disease type 1 and identified a de novo mutation in PMP2, the gene that encodes the myelin P2 protein. This mutation (p.Ile52Thr) was passed from the proband to his one affected son, and segregates with clinical and electrophysiological evidence of demyelinating neuropathy. We then screened a cohort of 136 European probands with uncharacterized genetic cause of Charcot-Marie-Tooth disease and identified another family with Charcot-Marie-Tooth disease type 1 that has a mutation affecting an adjacent amino acid (p.Thr51Pro), which segregates with disease. Our genetic and clinical findings in these kindred demonstrate that dominant PMP2 mutations cause Charcot-Marie-Tooth disease type 1.

Original languageEnglish (US)
Pages (from-to)1649-1656
Number of pages8
JournalBrain
Volume139
Issue number6
DOIs
StatePublished - 2016

Keywords

  • CMT, myelin P2 protein
  • Charcot-Marie-Tooth disease
  • PMP2
  • Peripheral neuropathy

ASJC Scopus subject areas

  • Clinical Neurology

Fingerprint Dive into the research topics of 'De novo PMP2 mutations in families with type 1 Charcot-Marie-Tooth disease'. Together they form a unique fingerprint.

Cite this