Sampling the complex energy landscape of a simple β-hairpin
- 1 October 2003
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 119 (13), 6403-6406
- https://doi.org/10.1063/1.1613642
Abstract
The folding trajectories of a 16-residue β-hairpin are studied using the activation–relaxation technique with a generic energymodel. From more than 70 trajectories, three folding pathways emerge. All involve a simultaneous optimization of the complete hydrophobic and hydrogen bondinginteractions. The first two follow closely those observed by previous theoretical studies, while the third can be described as a reptation move of one strand of the β-sheet with respect to the other. This reptation move indicates that non-native interactions can play a dominant role in the folding of secondary structures.Keywords
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