Mutations in the peripheral myelin genes and associated genes in inherited peripheral neuropathies.

Abstract

The peripheral myelin protein 22 gene (PMP22), the myelin protein zero gene (MPZ, P0), and the connexin 32 gene (Cx32, GJB1) code for membrane proteins expressed in Schwann cells of the peripheral nervous system (PNS). The early growth response 2 gene (EGR2) encodes a transcription factor that may control myelination in the PNS. Mutations in the respective genes, located on human chromosomes 17p11.2, 1q22-q23, Xq13.1, and 10q21.1-q22.1, are associated with several inherited peripheral neuropathies. To date, a genetic defect in one of these genes has been identified in over 1,000 unrelated patients manifesting a wide range of phenotypes, i.e., Charcot-Marie-Tooth disease type 1 (CMT1) and type 2 (CMT2), Dejerine-Sottas syndrome (DSS), hereditary neuropathy with liability to pressure palsies (HNPP), and congenital hypomyelination (CH). This large number of genetically defined patients provides an exceptional opportunity to examine the correlation between phenotype and genotype.

• Authors: E Nelis, N Haites, C Van Broeckhoven
• Journal: Human mutation (Hum Mutat) Vol. 13 Issue 1 Pg. 11-28 ( 1999) ISSN: 1059-7794 [Print] United States
• PMID: 9888385 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)

Chemical References

• Connexins
• Immediate-Early Proteins
• Myelin P0 Protein
• Myelin Proteins
• PMP22 protein, human

Topics

• Charcot-Marie-Tooth Disease (genetics)
• Connexins (genetics)
• Genotype
• Hereditary Sensory and Motor Neuropathy (genetics)
• Humans
• Immediate-Early Proteins (genetics)
• Myelin P0 Protein (genetics)
• Myelin Proteins (genetics)
• Phenotype
• Gap Junction beta-1 Protein