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26 April 2024

» pubmed » pmid8650548

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G protein-mediated neuronal DNA fragmentation induced by familial Alzheimer's disease-associated mutants of APP
T Yamatsuji ; T Matsui ; T Okamoto ; K Komatsuzaki ; S Takeda ; H Fukumoto ; T Iwatsubo ; N Suzuki ; A Asami-Odaka ; S Irel ; T B Kinane ; U Giambarella ; I Nishimoto ;
Date:	31 May 1996
Journal:	Science, 272 (5266), 1349-52
Abstract:	Missense mutations in the 695-amino acid form of the amyloid precursor protein (APP695) cosegregate with disease phenotype in families with dominantly inherited Alzheimer’s disease. These mutations convert valine at position 642 to isoleucine, phenylalanine, or glycine. Expression of these mutant proteins, but not of normal APP695, was shown to induce nucleosomal DNA fragmentation in neuronal cells. Induction of DNA fragmentation required the cytoplasmic domain of the mutants and appeared to be mediated by heterotrimeric guanosine triphosphate-binding proteins (G proteins).
Source:	PubMed, pmid8650548
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