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Mechanisms of the self-assembly of EAK16-family peptides into fibrillar and globular structures: molecular dynamics simulations from nano- to micro-seconds

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Abstract

The self-assembly of EAK16-family peptides in a bulk solution was studied using a combination of all-atom and coarse-grained molecular dynamics simulations. In addition, specified concentrations of EAK16 peptides were induced to form fibrillary or globular assemblies in vitro. The results show that the combination of all-atom molecular dynamics simulations on the single- and double-chain levels and coarse-grained simulations on the many-chain level predicts the experimental observations reasonably well. At neutral pH conditions, EAK16-I and EAK16-II assemble into fibrillary structures, whereas EAK16-IV aggregates into globular assemblies. Mechanisms of the formation of fibrillar and globular assemblies are described using the simulation results.

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Correspondence to Hossein Fazli.

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Emamyari, S., Kargar, F., Sheikh-hasani, V. et al. Mechanisms of the self-assembly of EAK16-family peptides into fibrillar and globular structures: molecular dynamics simulations from nano- to micro-seconds. Eur Biophys J 44, 263–276 (2015). https://doi.org/10.1007/s00249-015-1024-y

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  • DOI: https://doi.org/10.1007/s00249-015-1024-y

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