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COVID-19 Repurposed Therapeutics Targeting the Viral Protease and Spike-protein:ACE2 Interface using MD-based Pharmacophore and Consensus Virtual Screening

preprint
submitted on 07.05.2020, 14:45 and posted on 08.05.2020, 08:55 by Brady Garabato, Federico Falchi, Andrea Cavalli

Molecular dynamics (MD) and enhanced sampling MD was performed for 100 ns on the biological assembly of the COVID-19 protease (6LU7), and a template of the COVID-19 S-protein:ACE2 receptor interface (99.88% coverage of 6M0J; model03, swissmodel). Apo-site pharmacophores of the resulting structural clusters were used to mine the FDA database (8700 compounds), and a multi-target library was developed from MD-based hits in high affinity sites across 100 ns. Consensus hits from high throughput docking in crystal structures 5R82, 6LU7 and 6Y2F (protease), and 6VW1 (S-protein:ACE2) were also added, and the resulting libraries were re-docked into MD sites to collect potential COVID-19 re-purposed therapeutics by estimated binding energies.

History

Email Address of Submitting Author

brady.garabato@iit.it

Institution

Istituto Italiano di Tecnologia (IIT)

Country

Italy

ORCID For Submitting Author

0000-0002-1180-3824

Declaration of Conflict of Interest

None

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