PREFMD: a web server for protein structure refinement via molecular dynamics simulations

Summary: Refinement of protein structure models is a long‐standing problem in structural bioinformatics. Molecular dynamics‐based methods have emerged as an avenue to achieve consistent refinement. The PREFMD web server implements an optimized protocol based on the method successfully tested in CASP11. Validation with recent CASP refinement targets shows consistent and more significant improvement in global structure accuracy over other state‐of‐the‐art servers. Availability and implementation: PREFMD is freely available as a web server at http://feiglab.org/prefmd. Scripts for running PREFMD as a stand‐alone package are available at https://github.com/feiglab/prefmd.git. Contact: feig@msu.edu Supplementary information: Supplementary data are available at Bioinformatics online.

[1]  Michael Feig,et al.  MMTSB Tool Set: enhanced sampling and multiscale modeling methods for applications in structural biology. , 2004, Journal of molecular graphics & modelling.

[2]  Yang Zhang,et al.  Atomic-level protein structure refinement using fragment-guided molecular dynamics conformation sampling. , 2011, Structure.

[3]  Hong-Bin Shen,et al.  Template‐based protein structure prediction in CASP11 and retrospect of I‐TASSER in the last decade , 2016, Proteins.

[4]  Vahid Mirjalili,et al.  Protein Structure Refinement through Structure Selection and Averaging from Molecular Dynamics Ensembles. , 2013, Journal of chemical theory and computation.

[5]  Christodoulos A Floudas,et al.  Princeton_TIGRESS: Protein geometry refinement using simulations and support vector machines , 2014, Proteins.

[6]  Diwakar Shukla,et al.  OpenMM 4: A Reusable, Extensible, Hardware Independent Library for High Performance Molecular Simulation. , 2013, Journal of chemical theory and computation.

[7]  Chaok Seok,et al.  GalaxyRefine: protein structure refinement driven by side-chain repacking , 2013, Nucleic Acids Res..

[8]  Vahid Mirjalili,et al.  Protein structure refinement via molecular‐dynamics simulations: What works and what does not? , 2016, Proteins.

[9]  Roland L Dunbrack,et al.  Assessment of refinement of template‐based models in CASP11 , 2016, Proteins.

[10]  Yang Zhang Progress and challenges in protein structure prediction. , 2008, Current opinion in structural biology.

[11]  Claudio N. Cavasotto,et al.  Homology modeling in drug discovery: current trends and applications. , 2009, Drug discovery today.

[12]  Michael Feig,et al.  Local Protein Structure Refinement via Molecular Dynamics Simulations with locPREFMD , 2016, J. Chem. Inf. Model..

[13]  Michael Levitt,et al.  KoBaMIN: a knowledge-based minimization web server for protein structure refinement , 2012, Nucleic Acids Res..

[14]  Keehyoung Joo,et al.  Template based protein structure modeling by global optimization in CASP11 , 2016, Proteins.

[15]  David T Jones,et al.  Evaluation of predictions in the CASP10 model refinement category , 2013, Proteins.

[16]  B. L. de Groot,et al.  CHARMM36m: an improved force field for folded and intrinsically disordered proteins , 2016, Nature Methods.

[17]  Michael Feig,et al.  Computational protein structure refinement: almost there, yet still so far to go , 2017, Wiley interdisciplinary reviews. Computational molecular science.

[18]  Jianpeng Ma,et al.  CHARMM: The biomolecular simulation program , 2009, J. Comput. Chem..