Nature volume 376, pages 775–778 (1995)Cite this article
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WE report the cloning of a novel gene (E5-1) encoded on chromosome 1 which has substantial nucleotide and amino-acid sequence similarity to the S182 gene on chromosome 14q24.3. Mutations, including three new missense mutations in the S182 gene, are associated with the AD3 subtype of early-onset familial Alzheimer's disease (AD)1. Both the E5-1 and the S182 proteins are predicted to be integral membrane proteins with seven membrane-spanning domains, and a large exposed loop between the sixth and seventh transmembrane domains. Analysis of the nucleotide sequence of the open reading frame (ORF) of the E5-1 gene led to the discovery of two missense substitutions at conserved amino-acid residues in affected members of pedigrees with a form of familial AD that has a later age of onset than the AD3 subtype (50–70 years versus 30–60 years for AD3). These observations imply that the E5-1 gene on chromosome 1 and the S182 gene on chromosome 14q24.3 are members of a family of genes (presenilins) with related functions, and indicates that mutations in conserved residues of E5-1 could also play a role in the genesis of AD. Our results also indicate that still other AD susceptibility genes exist.
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P. H. St George-Hyslop: To whom correspondence should be addressed
Centre for Research into Neurodegenerative Diseases, Departments of Medicine (Neurology) and Medical Biophysics, University of Toronto, Toronto
E. I. Rogaev, R. Sherrington, E. A. Rogaeva, G. Levesque, M. Ikeda, Y. Liang, H. Chi, C. Lin, K. Holman, T. Tsuda, P. E. Fraser & P. H. St George-Hyslop
Division of Neurology, Department of Medicine, The Toronto Hospital, Toronto, Ontario, M5S 1A8, Canada
E. I. Rogaev, R. Sherrington, E. A. Rogaeva, G. Levesque, M. Ikeda, Y. Liang, H. Chi, C. Lin, K. Holman, T. Tsuda, P. E. Fraser & P. H. St George-Hyslop
Research Institute, The Hospital for Sick Children, and Department of Molecular and Medical Genetics, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
L. Mar & J. M. Rommens
Department of Neurology and Psychiatry, University of Florence, viale Morgagni 85, Florence, Italy
S. Sorbi, B. Nacmias, S. Piacentini & L. Amaducci
Centre d'Etude Polymorphisme Humaine, 27 rue Juliette Dodu, 75010, Paris, France
I. Chumakov & D. Cohen
Department of Clinical Neuroscience (Geriatric Medicine), Huddinge Hospital, Karolinska Institute, 14186, Huddinge, Sweden
L. Lannfelt
Rogaev, E., Sherrington, R., Rogaeva, E. et al. Familial Alzheimer's disease in kindreds with missense mutations in a gene on chromosome 1 related to the Alzheimer's disease type 3 gene. Nature 376, 775–778 (1995). https://doi.org/10.1038/376775a0
Received: 07 August 1995
Accepted: 11 August 1995
Issue Date: 31 August 1995
DOI: https://doi.org/10.1038/376775a0
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