Palmitoylation of Amyloid Precursor Protein Regulates Amyloidogenic Processing in Lipid Rafts

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Palmitoylation of amyloid precursor protein regulates amyloidogenic processing in lipid rafts.

Brains of patients affected by Alzheimer's disease (AD) contain large deposits of aggregated amyloid β-protein (Aβ). Only a small fraction of the amyloid precursor protein (APP) gives rise to Aβ. Here, we report that ∼10% of APP undergoes a post-translational lipid modification called palmitoylation. We identified the palmitoylation sites in APP at Cys¹⁸⁶ and Cys¹⁸⁷. Surprisingly, point mutatio...

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Amyloidogenic Processing of APP in Lipid Rafts

Increased generation of amyloid peptide (A ) derived from amyloid precursor protein (APP) is the primary pathological characteristic of Alzheimer’s disease (AD). However, the sub cellular compartment in which APP undergoes cleavage by secretases to generate A is not precisely known. Compelling evidences suggest that amyloidogenic processing of APP occurs in lipid rafts. An indirect support for ...

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ژورنال

عنوان ژورنال: Journal of Neuroscience

سال: 2013

ISSN: 0270-6474,1529-2401

DOI: 10.1523/jneurosci.4704-12.2013