Protein aggregation: kinetics versus thermodynamics.
Protein aggregation: kinetics versus thermodynamics.
复制标题
蛋白质聚集:动力学与热力学。
DOI:
10.1021/jp302797c
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
S. Auer
中科院分区:
文献类型:
--
作者:
Piero Ricchiuto;A. Brukhno;S. Auer
In this study, we address the questions of how important is the kinetics in protein aggregation, and what are the intrinsic properties of proteins that cause this behavior. On the basis of our recent quantitative calculation of the equilibrium phase diagram of natively folded α-helical and β-sheet forming peptides, we perform molecular dynamics simulations to demonstrate how the aggregation mechanism and end product depend on the temperature, concentration, and starting point in the phase diagram. The results obtained show that there are severe differences between the thermodynamically predicted and the kinetically obtained aggregate structures. The observed differences help to rationalize the suggestion that monomeric proteins in their native functional structure can be metastable with respect to the amyloid state, and that the native fold is a special property that protects them from aggregation.
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作者:
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通讯作者:
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影响因子:
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作者:
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作者:
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DOI:
10.1073/pnas.93.3.1125
发表时间:
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影响因子:
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作者:
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通讯作者:
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作者:
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通讯作者:
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