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- W2066972166 abstract "Presenilins (PSs) are catalytic components of the γ-secretase proteolytic complexes that produce Aβ and cell signaling peptides. γ-Secretase substrates are mostly membrane-bound peptides derived following proteolytic cleavage of the extracellular domain of type I transmembrane proteins. Recent work reveals that γ-secretase substrate processing is regulated by proteins termed γ-secretase substrate recruiting factors (γSSRFs) that bridge substrates to γ-secretase complexes. These factors constitute novel targets for pharmacological control of specific γ-secretase products, such as Aβ and signaling peptides. PS familial Alzheimer's disease (FAD) mutants cause a loss of γ-secretase cleavage function at epsilon sites of substrates thus inhibiting production of cell signaling peptides while promoting accumulation of uncleaved toxic substrates. Importantly, γ-secretase inhibitors may cause toxicity in vivo by similar mechanisms. Here we review novel mechanisms that control γ-secretase substrate selection and cleavage and examine their relevance to AD." @default.
- W2066972166 created "2016-06-24" @default.
- W2066972166 creator A5002908788 @default.
- W2066972166 creator A5051640439 @default.
- W2066972166 creator A5056187285 @default.
- W2066972166 date "2012-08-01" @default.
- W2066972166 modified "2023-10-05" @default.
- W2066972166 title "Cellular mechanisms of γ-secretase substrate selection, processing and toxicity" @default.
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