alexa A coarse-grained protein force field for folding and structure prediction.
Psychiatry

Psychiatry

Clinical Depression

Author(s): Maupetit J, Tuffery P, Derreumaux P

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Abstract We have revisited the protein coarse-grained optimized potential for efficient structure prediction (OPEP). The training and validation sets consist of 13 and 16 protein targets. Because optimization depends on details of how the ensemble of decoys is sampled, trial conformations are generated by molecular dynamics, threading, greedy, and Monte Carlo simulations, or taken from publicly available databases. The OPEP parameters are varied by a genetic algorithm using a scoring function which requires that the native structure has the lowest energy, and the native-like structures have energy higher than the native structure but lower than the remote conformations. Overall, we find that OPEP correctly identifies 24 native or native-like states for 29 targets and has very similar capability to the all-atom discrete optimized protein energy model (DOPE), found recently to outperform five currently used energy models. (c) 2007 Wiley-Liss, Inc. This article was published in Proteins and referenced in Clinical Depression

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