γ-Secretase structure and activity are modified by alterations in its membrane localization and ambient environment.

Abstract excerpt

γ-Secretase cleaves type I transmembrane proteins in a hydrophobic membrane environment following ectodomain shedding. Mutations in PSEN genes, encoding the catalytic subunits of γ-secretase, presenilins, are the most common cause of familial Alzheimer's disease (ad). Pathogenic mutations in PSEN genes increase production of longer and neurotoxic amyloid-β (Aβ) by intramembrane cleavage of membrane-associated...

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