Recent progress in understanding Alzheimer's β-amyloid structures.
Recent progress in understanding Alzheimer's β-amyloid structures.
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DOI:
10.1016/j.tibs.2011.02.002
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发表时间:
2011-06
影响因子:
13.8
通讯作者:
Grigorieff, Nikolaus
中科院分区:
文献类型:
--
作者:
Faendrich, Marcus;Schmidt, Matthias;Grigorieff, Nikolaus
The formation of amyloid fibrils, protofibrils and oligomers from the β-amyloid (Aβ) peptide represents a hallmark of Alzheimer’s disease. Aβ peptide-derived assemblies might be crucial for disease onset, but determining their atomic structures has proven to be a major challenge. Progress over the last five years has yielded substantial new data obtained with improved methodologies including electron cryo-microscopy and NMR. It is now possible to resolve the global fibril topology and the cross-β sheet organization within protofilaments, and to identify residues that are critical for stabilizing secondary structural elements and peptide conformations within specific assemblies. These data have significantly enhanced our understanding of the mechanism of Aβ aggregation and illuminated the possible relevance of specific conformers for neurodegenerative pathologies.
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