A computer-simulated mechanism of familial Alzheimer's disease: Mutations enhance thermal dynamics and favor looser substrate-binding to γ-secretase.

Abstract excerpt

The 4-subunit intramembrane protease complex γ-secretase cleaves many substrates including fragments of the β-amyloid precursor protein (APP), leading to formation of Aβ peptides, and Notch. Mutations in APP and the catalytic subunit of γ-secretase, presenilin, cause familial Alzheimer's disease (fAD). Mutations are assumed to change the substrate-binding and cleavage and thereby the Aβ formed. Whereas a...

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