Resumen
We present a supercomputer-driven pipeline for in silico drug discovery using enhanced sampling molecular dynamics (MD) and ensemble docking. Ensemble docking makes use of MD results by docking compound databases into representative protein binding-site conformations, thus taking into account the dynamic properties of the binding sites. We also describe preliminary results obtained for 24 systems involving eight proteins of the proteome of SARS-CoV-2. The MD involves temperature replica exchange enhanced sampling, making use of massively parallel supercomputing to quickly sample the configurational space of protein drug targets. Using the Summit supercomputer at the Oak Ridge National Laboratory, more than 1 ms of enhanced sampling MD can be generated per day. We have ensemble docked repurposing databases to 10 configurations of each of the 24 SARS-CoV-2 systems using AutoDock Vina. Comparison to experiment demonstrates remarkably high hit rates for the top scoring tranches of compounds identified by our ensemble approach. We also demonstrate that, using Autodock-GPU on Summit, it is possible to perform exhaustive docking of one billion compounds in under 24 h. Finally, we discuss preliminary results and planned improvements to the pipeline, including the use of quantum mechanical (QM), machine learning, and artificial intelligence (AI) methods to cluster MD trajectories and rescore docking poses.
| Idioma original | English |
|---|---|
| Páginas (desde-hasta) | 5832-5852 |
| Número de páginas | 21 |
| Publicación | Journal of Chemical Information and Modeling |
| Volumen | 60 |
| N.º | 12 |
| DOI | |
| Estado | Published - dic 28 2020 |
Nota bibliográfica
Publisher Copyright:© 2020 American Chemical Society. All rights reserved.
Financiación
This work was made possible in part by a grant of high-performance computing resources and technical support from the Alabama Supercomputer Authority to J.B. and K.B. J.C.G. was supported by the National Institute of Health under Grant No. NIH R01-AI148740. C.J.C. was supported by a National Science Foundation Graduate Research Fellowship under Grant No. 2017219379. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725 and National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. This research was supported by the Cancer Research Informatics Shared Resource Facility of the University of Kentucky Markey Cancer Center (P30CA177558) and the University of Kentucky’s Center for Computational Sciences (CCS) high-performance computing resources. Computer time on Summit was granted by the HPC Covid-19 Consortium. This work was made possible in part by a grant of high-performance computing resources and technical support from the Alabama Supercomputer Authority to J.B. and K.B. J.C.G. was supported by the National Institute of Health under Grant No. NIH R01-AI148740. C.J.C. was supported by a National Science Foundation Graduate Research Fellowship under Grant No. 2017219379. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725 and National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. This research was supported by the Cancer Research Informatics Shared Resource Facility of the University of Kentucky Markey Cancer Center (P30CA177558) and the University of Kentucky's Center for Computational Sciences (CCS) high-performance computing resources. Computer time on Summit was granted by the HPC Covid-19 Consortium.
| Financiadores | Número del financiador |
|---|---|
| National Energy Research Scientific Computing Center | |
| University of Kentucky | |
| National Institutes of Health (NIH) | |
| Office of Science Programs | |
| HPC Covid-19 Consortium | |
| National Science Foundation Arctic Social Science Program | 2017219379 |
| University of Kentucky Markey Comprehensive Cancer Center | P30CA177558 |
| U.S. Department of Energy | DE-AC05-00OR22725, DE-AC02-05CH11231 |
| National Institute of Allergy and Infectious F32-AI286447 Cydney N. Johnson Diseases National Institute of Allergy and Infectious R01AI168214 Jason W. Rosch Diseases National Institute of Allergy and Infectious P30 Cydney N. Johnson Diseases National Institute of Allergy and Infectious R00-AI166116 Christopher D. Radka Diseases National Institute of Allergy and Infectious T32-AI106700 Cydney N. Johnson Diseases National Institute of Allergy and Infectious R01AI192221 Jason W. Rosch Diseases National Inst... | R01AI148740 |
| National Childhood Cancer Registry – National Cancer Institute | P30CA177558 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Computer Science Applications
- Library and Information Sciences
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