Computing Ligands Bound to Proteins Using MELD-Accelerated MD

J Chem Theory Comput. 2020 Oct 13;16(10):6377-6382. doi: 10.1021/acs.jctc.0c00543. Epub 2020 Sep 23.

Abstract

Predicting the poses of small-molecule ligands in protein binding sites is often done by virtual screening algorithms such as DOCK. In principle, molecular dynamics (MD) using atomistic force fields could give better free-energy-based pose selection, but MD is computationally expensive. Here, we ask if modeling employing limited data (MELD)-accelerated MD (MELD × MD) can pick out the best DOCK poses taken as input. We study 30 different ligand-protein pairs. MELD × MD finds native poses, based on best free energies, in 23 out of the 30 cases, 20 of which were previously known DOCK failures. We conclude that MELD × MD can add value for predicting accurate poses of small molecules bound to proteins.

MeSH terms

  • Ligands
  • Molecular Dynamics Simulation*
  • Proteins / chemistry*

Substances

  • Ligands
  • Proteins