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Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Chem+Sci 2020 ; 11 (44): 12036-12046 Nephropedia Template TP
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Unveiling the molecular mechanism of SARS-CoV-2 main protease inhibition from 137 crystal structures using algebraic topology and deep learning #MMPMID34123218
Nguyen DD; Gao K; Chen J; Wang R; Wei GW
Chem Sci 2020[Sep]; 11 (44): 12036-12046 PMID34123218show ga
Currently, there is neither effective antiviral drugs nor vaccine for coronavirus disease 2019 (COVID-19) caused by acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Due to its high conservativeness and low similarity with human genes, SARS-CoV-2 main protease (M(pro)) is one of the most favorable drug targets. However, the current understanding of the molecular mechanism of M(pro) inhibition is limited by the lack of reliable binding affinity ranking and prediction of existing structures of M(pro)-inhibitor complexes. This work integrates mathematics (i.e., algebraic topology) and deep learning (MathDL) to provide a reliable ranking of the binding affinities of 137 SARS-CoV-2 M(pro) inhibitor structures. We reveal that Gly143 residue in M(pro) is the most attractive site to form hydrogen bonds, followed by Glu166, Cys145, and His163. We also identify 71 targeted covalent bonding inhibitors. MathDL was validated on the PDBbind v2016 core set benchmark and a carefully curated SARS-CoV-2 inhibitor dataset to ensure the reliability of the present binding affinity prediction. The present binding affinity ranking, interaction analysis, and fragment decomposition offer a foundation for future drug discovery efforts.