Toxic fibrillar oligomers of amyloid- have cross- structure

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Toxic fibrillar oligomers of amyloid-β have cross-β structure.

Although amyloid fibers are found in neurodegenerative diseases, evidence points to soluble oligomers of amyloid-forming proteins as the cytotoxic species. Here, we establish that our preparation of toxic amyloid-β(1-42) (Abeta42) fibrillar oligomers (TABFOs) shares with mature amyloid fibrils the cross-β structure, in which adjacent β-sheets adhere by interpenetration of protein side chains. W...

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Hall mark in Alzheimer’s Disease (AD) is the aggregation of amyloid-b (Ab) peptide into oligomers and fibrils. Nowadays, the soluble oligomers are believed to be the most neurotoxic species, probably the causative agents in AD. Amyloid-beta fibrils on the other hand may serve as reservoirs for small toxic oligomers. While it is well known from experiment, that the aggregation process is modulat...

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Department of Chemistry, Ulsan Nationa (UNIST), Ulsan 44919, Republic of Korea. E Department of Chemistry, Pohang Universit Pohang 37673, Republic of Korea Department of Chemistry, Research Institu Seoul 02841, Republic of Korea. E-mail: hug Graduate School of Medical Life Science, Kanagawa 230-0045, Japan † Electronic supplementary information Fig. S1–S18 and Tables S1 and S2. See DO ‡ These a...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2012

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.1203193109