期刊
HUMAN MUTATION
卷 30, 期 5, 页码 715-723出版社
WILEY
DOI: 10.1002/humu.20954
关键词
epilepsy; neurodegeneration; locus heterogeneity; meta-analysis; inclusion bodies; EPM2A; NHLRC1
Lafora discase (LD) is in autosomal recessive and fatal form of progressive myoclonus epilepsy. LD patients manifest myoclonus and tonic-clonic seizures, visual hallucinations, and progressive neurologic deterioration beginning at 12 to 15 years of age. The two genes known to be associated with LD are EPM2A and NHLRC1. Mutations in at least one other as yet unknown gene also cause LD. The EMP2A encodes a protein phosphatase and NHLRC1 encodes an ubiquitin ligase. These two proteins interact with each other and, as a complex, are thought to regulate critical neuronal functions. Nearly 100 distinct mutations have been discovered in the two genes in over 200 independent LD families. Nearly half of them are missense mutations, and the deletion mutations account for one-quarter. Several reports have provided functional data for the mutant proteins and a few also provide genotype-phenotype correlations. In this review we provide an update on the spectrum of EPM2A and NHLRC1 mutations, and discuss their distribution in the patient population, genotype-phenotype correlations, and oil the possible effect of disease imitations on the Cellular functions of LD proteins. Hum Mutat 30:715-723, 2009. (C) 2009 Wiley-Liss, Inc.
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