Amyloidosis of Alzheimer's Aβ peptides:: solid-state nuclear magnetic resonance, electron paramagnetic resonance, transmission electron microscopy, scanning transmission electron microscopy and atomic force microscopy studies

被引:60
作者
Antzutkin, ON [1 ]
机构
[1] Lulea Univ Technol, Div Chem, S-97187 Lulea, Sweden
关键词
Alzheimer's A beta-peptides; solid-state NMR; electron paramagnetic resonance; transmission electron microscopy; scanning transmission electron microscopy; atomic force microscopy;
D O I
10.1002/mrc.1341
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Aggregation cascade for Alzheimer's amyloid-beta peptides, its relevance to neurotoxicity in the course of Alzheimer's disease and experimental methods useful for these studies are discussed. Details of the solid-phase peptide synthesis and sample preparation procedures for Alzheimer's beta-amyloid fibrils are given. Recent progress in obtaining structural constraints on Abeta-fibrils from solid-state NMR and scanning transmission electron microscopy (STEM) data is discussed. Polymorphism of amyloid fibrils and oligomers of the 'Arctic' mutant of Abeta(1-40) was studied by H-1,C-13 solid-state NMR, transmission electron microscopy (TEM) and atomic force microscopy (AFM), and a real-time aggregation of different polymorphs of the peptide was observed with the aid of in situ AFM. Recent results on binding of Cu(II) ions and Al-citrate and Al-ATP complexes to amyloid fibrils, as studied by electron paramagnetic resonance (EPR) and solid-state Al-27 NMR techniques, are also presented. Copyright (C) 2004 John Wiley Sons, Ltd.
引用
收藏
页码:231 / 246
页数:16
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