期刊
CHEMICAL SCIENCE
卷 9, 期 10, 页码 2791-2796出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7sc04542e
关键词
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资金
- Euronanomed ENMII JTC [2011-ERA-002-01-Dia-Amyl]
- French National Research Agency (ANR) [ANR-12-RPIB]
- FRM [DBS2013112844]
- European Research Council under the European Union [320659]
Heterogeneity and polymorphism are generic features of amyloid fibers with some important effects on the related disease development. We report here the characterization, by charge detection mass spectrometry, of amyloid fibers made of three polypeptides involved in neurodegenerative diseases: A beta(1-42) peptide, tau and alpha-synuclein. Beside the mass of individual fibers, this technique enables to characterize the heterogeneity and the polymorphism of the population. In the case of A beta(1-42) peptide and tau protein, several coexisting species could be distinguished and characterized. In the case of alpha-synuclein, we show how the polymorphism affects the mass and charge distributions.
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