Late onset axonal Charcot-Marie-Tooth phenotype caused by a novel myelin protein zero mutation

J Neurol Neurosurg Psychiatry. 2006 Apr;77(4):534-7. doi: 10.1136/jnnp.2005.073437.

Abstract

A late onset axonal Charcot-Marie-Tooth phenotype is described, resulting from a novel mutation in the myelin protein zero (MPZ) gene. Comparative computer modelling of the three dimensional structure of the MPZ protein predicts that this mutation does not cause a significant structural change. The primary axonal disease process in these patients points to a function of MPZ in maintenance of the myelinated axons, apart from securing stability of the myelin layer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Age of Onset
  • Aged
  • Axons / pathology*
  • Biopsy
  • Charcot-Marie-Tooth Disease / epidemiology
  • Charcot-Marie-Tooth Disease / genetics*
  • Charcot-Marie-Tooth Disease / pathology*
  • Cohort Studies
  • Connexins / genetics
  • DNA Mutational Analysis
  • Demyelinating Diseases / pathology
  • Female
  • Gap Junction beta-1 Protein
  • Humans
  • Intracellular Signaling Peptides and Proteins / genetics*
  • Male
  • Median Nerve / physiopathology
  • Middle Aged
  • Myelin P0 Protein / genetics*
  • Myelin Proteins / genetics
  • Neural Conduction / physiology
  • Pedigree
  • Phenotype
  • Phosphoproteins / genetics*
  • Point Mutation
  • Polymorphism, Single-Stranded Conformational
  • Sural Nerve / pathology
  • Sural Nerve / physiopathology
  • Ulnar Nerve / physiopathology

Substances

  • Connexins
  • Intracellular Signaling Peptides and Proteins
  • MPZL1 protein, human
  • Myelin P0 Protein
  • Myelin Proteins
  • PMP22 protein, human
  • Phosphoproteins