Accelerated Molecular Dynamics Simulations with the AMOEBA Polarizable Force Field on Graphics Processing Units. 2013

Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
Department of Pharmacology, University of California San Diego , La Jolla, California 92093 United States ; Center for Theoretical Biological Physics, La Jolla, California 92093 United States.

The accelerated molecular dynamics (aMD) method has recently been shown to enhance the sampling of biomolecules in molecular dynamics (MD) simulations, often by several orders of magnitude. Here, we describe an implementation of the aMD method for the OpenMM application layer that takes full advantage of graphics processing units (GPUs) computing. The aMD method is shown to work in combination with the AMOEBA polarizable force field (AMOEBA-aMD), allowing the simulation of long time-scale events with a polarizable force field. Benchmarks are provided to show that the AMOEBA-aMD method is efficiently implemented and produces accurate results in its standard parametrization. For the BPTI protein, we demonstrate that the protein structure described with AMOEBA remains stable even on the extended time scales accessed at high levels of accelerations. For the DNA repair metalloenzyme endonuclease IV, we show that the use of the AMOEBA force field is a significant improvement over fixed charged models for describing the enzyme active-site. The new AMOEBA-aMD method is publicly available (http://wiki.simtk.org/openmm/VirtualRepository) and promises to be interesting for studying complex systems that can benefit from both the use of a polarizable force field and enhanced sampling.

UI MeSH Term Description Entries

Related Publications

Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
February 2023, Journal of chemical theory and computation,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
June 2011, Molecular informatics,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
January 2021, Molecular simulation,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
March 2024, Journal of chemical theory and computation,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
May 2014, The Journal of chemical physics,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
March 2016, Journal of computational chemistry,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
August 2009, The journal of physical chemistry. B,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
July 2010, Journal of chemical theory and computation,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
January 2012, IEEE/ACM transactions on computational biology and bioinformatics,
Steffen Lindert, and Denis Bucher, and Peter Eastman, and Vijay Pande, and J Andrew McCammon
July 2022, Journal of computational chemistry,
Copied contents to your clipboard!