Identification of novel EIF2B mutations in Chinese patients with vanishing white matter disease.
Beijing, China. In J Hum Genet, 2009
Mutations were identified exclusively in EIF2B5 and EIF2B3 in these patients, with six novel mutations, including five missense mutations (EIF2B5: c.185A>T, p.D62V; c.1004G>C, p.C335S; c.1126A>G, p.N376D; EIF2B3: c.140G>A, p.G47E; c.1037T>C, p.I346T) and one deletion leading to amino-acid deletion (EIF2B5: c.1827-1838del, p.S610-D613del).
Genetic and clinical heterogeneity in eIF2B-related disorder.
Washington, D.C., United States. In J Child Neurol, 2008
Study reports 9 novel mutations in EIF2B genes in 8 patients, increasing number of known mutations to more than 120. Using homology modeling, analyzed the impact of novel mutations on the 5 subunits of eIF2B protein (alpha, beta, gamma, delta, epsilon)
Investigation of the PARK10 gene in Parkinson disease.
Durham, United States. In Ann Hum Genet, 2007
Two recent association mapping studies in Parkinson disease (PD) reported three candidate genes for the PARK10 locus: EIF2B3 as a modifier of age-at-onset of PD (min P= 0.0004) and HIVEP3 as a PD risk gene (P < or = 0.006) (Oliveira et al. 2005); and LOC200008 (CDCP2) identified by the whole genome association (WGA) study of PD of Maraganore et al. (2005).
The spectrum of mutations for the diagnosis of vanishing white matter disease.
Siena, Italy. In Neurol Sci, 2006
Vanishing white matter disease (VWM; MIM #603896), also known as childhood ataxia with central nervous system hypomyelination (CACH) syndrome, is an autosomal recessive transmitted leukoencephalopathy related to mutations in each of the 5 genes (EIF2B1, EIF2B2, EIF2B3, EIF2B4 and EIF2B5) encoding for the 5 subunits of eukaryotic translation initiation factor 2B (eIF2B), essential for protein synthesis.
Identification of risk and age-at-onset genes on chromosome 1p in Parkinson disease.
Durham, United States. In Am J Hum Genet, 2005
Using the overall data set of 267 multiplex families, we identified six associated genes in the region, but further screening of a subset of 83 families linked to the chromosome 1 locus identified only two genes significantly associated with AAO in PD: the gamma subunit of the translation initiation factor EIF2B gene (EIF2B3), which was more significant in the linked subset and the ubiquitin-specific protease 24 gene (USP24).
Identification of ten novel mutations in patients with eIF2B-related disorders.
Göttingen, Germany. In Hum Mutat, 2005
In this study 15 well-characterised patients with the classical form of leukoencephalopathy with vanishing white matter (VWM) or with phenotypic variants like ovarioleukodystrophy were investigated for mutations in the genes EIF2B1, EIF2B2, EIF2B3, EIF2B4, and EIF2B5 encoding eIF2B.
Childhood Ataxia with Central Nervous System Hypomyelination/Vanishing White Matter
Seattle, United States. In Unknown Journal, 2003
DIAGNOSIS/TESTING: The diagnosis of CACH/VWM can be made with confidence in individuals with typical clinical findings, characteristic abnormalities on cranial MRI, and identifiable mutations in one of five genes (EIF2B1, EIF2B2, EIF2B3, EIF2B4, EIF2B5), encoding the five subunits of the eukaryotic translation initiation factor 2B (eIF2B).