Supercomputer-Based Ensemble Docking Drug Discovery Pipeline with Application to Covid-19.

Supercomputer-Based Ensemble Docking Drug Discovery Pipeline with Application to Covid-19.
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DOI:
10.1021/acs.jcim.0c01010
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发表时间:
2020-12-28
影响因子:
5.6
通讯作者:
Zanetti-Polzi L
Zanetti-Polzi L
中科院分区:
化学2区
文献类型:
--
作者:
Acharya A;Agarwal R;Baker MB;Baudry J;Bhowmik D;Boehm S;Byler KG;Chen SY;Coates L;Cooper CJ;Demerdash O;Daidone I;Eblen JD;Ellingson S;Forli S;Glaser J;Gumbart JC;Gunnels J;Hernandez O;Irle S;Kneller DW;Kovalevsky A;Larkin J;Lawrence TJ;LeGrand S;Liu SH;Mitchell JC;Park G;Parks JM;Pavlova A;Petridis L;Poole D;Pouchard L;Ramanathan A;Rogers DM;Santos-Martins D;Scheinberg A;Sedova A;Shen Y;Smith JC;Smith MD;Soto C;Tsaris A;Thavappiragasam M;Tillack AF;Vermaas JV;Vuong VQ;Yin J;Yoo S;Zahran M;Zanetti-Polzi L

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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 ten configurations of each of the 24 SARS-CoV-2 systems using AutoDock Vina. We also demonstrate that, using Autodock-GPU on Summit, it is possible to perform exhaustive docking of one billion compounds in under 24 hours. Finally, we discuss preliminary results and planned improvements to the pipeline, including the use of quantum mechanical (QM), machine learning, and artifical intelligence (AI) methods to cluster MD trajectories and rescore docking poses.
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