학술논문
Gene dosage sensitivity of a novel mutation in the intracellular domain of P0 associated with Charcot-Marie-Tooth disease type 1B
Document Type
Article
Author
Source
Subject
*CHARCOT-Marie-Tooth disease
*GENETIC mutation
*CHROMATOGRAPHIC analysis
*PERONEAL nerve diseases
*
*
*
Language
ISSN
0960-8966
Abstract
Abstract: Autosomal dominant Charcot-Marie-Tooth disease type 1B (CMT1B) is caused by heterozygous mutations in the extracellular domain of P0. Here, we investigated clinically, electrophysiologically and pathologically a pedigree with a novel mutation in the intracellular domain of P0 (P0ic). The mutational analysis included denaturing high performance liquid chromatography (DHPLC) and nucleotide sequencing. Two patients from subsequent generations were homozygous for an Asp195Tyr mutation in the intracellular domain of P0 (P0ic), whereas two healthy individuals with minimal electrophysiological changes were heterozygous for the same mutation. The authors conclude that mutations of P0ic may undergo a gene dosage effect manifesting semidominant inheritance. [Copyright &y& Elsevier]