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Nature. 1991 Oct 31;353(6347):844-6.

Early-onset Alzheimer's disease caused by mutations at codon 717 of the beta-amyloid precursor protein gene.

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1
Department of Biochemistry, St Mary's Hospital Medical School, Imperial College, London, UK.

Abstract

A mutation at codon 717 of the beta-amyloid precursor protein gene has been found to cosegregate with familial Alzheimer's disease in a single family. This mutation has been reported in a further five out of approximately 100 families multiply affected by Alzheimer's disease. We have identified another family, F19, in which we have detected linkage between the beta-amyloid precursor protein gene and Alzheimer's disease. Direct sequencing of exon 17 in affected individuals from this family has revealed a base change producing a Val----Gly substitution, also at codon 717. The occurrence of a second allelic variant at codon 717 linked to the Alzheimer's phenotype supports the hypothesis that they are pathogenic mutations.

PMID:
1944558
DOI:
10.1038/353844a0
[Indexed for MEDLINE]
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