id author title date pages extension mime words sentences flesch summary cache txt cord-030535-8o7rzb98 Zhang, Sheng Structure-Based Drug Design of an Inhibitor of the SARS-CoV-2 (COVID-19) Main Protease Using Free Software: A Tutorial for Students and Scientists 2020-08-12 .txt text/plain 2718 178 59 The tutorial begins with the X-ray crystallographic structure of the main protease (Mpro) of the SARS coronavirus (SARS-CoV) bound to a peptide substrate and then uses the UCSF Chimera software to modify the substrate to create a cyclic peptide inhibitor within the Mpro active site. In this tutorial, we will use the X-ray crystallographic structure of the homologous SARS-CoV M pro bound to a protein substrate to recapitulate the design of a cyclic peptide inhibitor of the SARS-CoV-2 M pro . 8 We will first use the molecular modeling software UCSF Chimera to visualize the X-ray crystallographic structure of the SARS-CoV M pro bound to the protein substrate. In structure-based drug design, we would typically now synthesize the cyclic peptide inhibitor and evaluate its activity experimentally through studying its ability to block the cleavage of a fluorogenic peptide substrate by SARS-CoV-2 M pro . ./cache/cord-030535-8o7rzb98.txt ./txt/cord-030535-8o7rzb98.txt