Cited by 29Protein Structure and DynamicsComputational Drug Discovery MethodsAdvanced Physical and Chemical Molecular Interactions

Differentiable molecular simulation can learn all the parameters in a coarse-grained force field for proteins

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Greener, Joe G., Jones, David T.·2021·PLOS ONE

Published version of a preprint

Abstract

Finding optimal parameters for force fields used in molecular simulation is a challenging and time-consuming task, partly due to the difficulty of tuning multiple parameters at once. Automatic differentiation presents a general solution: run a simulation, obtain gradients of a loss function with respect to all the parameters, and use these to improve the force field. This approach takes advantage of the deep learning revolution whilst retaining the interpretability and efficiency of existing force fields. We demonstrate that this is possible by parameterising a simple coarse-grained force field for proteins, based on training simulations of up to 2,000 steps learning to keep the native structure stable. The learned potential matches chemical knowledge and PDB data, can fold and reproduce the dynamics of small proteins, and shows ability in protein design and model scoring applications. Problems in applying differentiable molecular simulation to all-atom models of proteins are discussed along with possible solutions and the variety of available loss functions. The learned potential, simulation scripts and training code are made available at https://github.com/psipred/cgdms .

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  • The innovation in development and integration of MD simulations with deep learning can reproduce, interpret, predict, and generate data relating to the behavior of biological macromolecules.

    “The innovation in the development and integration of MD simulations with deep learning can reproduce, interpret, predict, and generate data relating to the behavior of biological macromolecules.”

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  1. [72]Schoenholz SS, Cubuk ED. JAX, M.D.: A Framework for Differentiable Physics. arXiv. 2019;1912.04232.

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Authors
Greener, J. G., & Jones, D. T.
Affiliations
University College London (GB)
Corresponding author
Greener, Joe G.
Venue
PLOS ONE
Published
2021-09-02
Volume
16
Issue
9
Pages
e0256990
ISSN
1932-6203 (ISSN-L)
OpenAlex
W3198230876
Cited by
29
References
101
Citations by year
2026: 1 · 2025: 9 · 2024: 6 · 2023: 7 · 2022: 4 · 2021: 2
FWCI
1.48
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • UCL Discovery (University College London) (submittedVersion)
Funders
H2020 European Research Council (695558)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Advanced Physical and Chemical Molecular Interactions
Keywords
force field optimization, coarse-grained force field, proteins, automatic differentiation, protein folding, protein design, model scoring, all-atom force field, loss functions
MeSH terms
Protein Conformation, alpha-Helical, Protein Conformation, beta-Strand, Deep Learning, Crystallization, Nuclear Energy, Proteins, Temperature, Protein Structure, Tertiary, Molecular Dynamics Simulation

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