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10.1016/j.compbiolchem.2020.107376

http://scihub22266oqcxt.onion/10.1016/j.compbiolchem.2020.107376
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suck abstract from ncbi


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pmid32979815      Comput+Biol+Chem 2020 ; 89 (ä): 107376
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  • Identification of novel human USP2 inhibitor and its putative role in treatment of COVID-19 by inhibiting SARS-CoV-2 papain-like (PLpro) protease #MMPMID32979815
  • Mirza MU; Ahmad S; Abdullah I; Froeyen M
  • Comput Biol Chem 2020[Dec]; 89 (ä): 107376 PMID32979815show ga
  • Human ubiquitin carboxyl-terminal hydrolase-2 (USP2) inhibitors, such as thiopurine analogs, have been reported to inhibit SARS-CoV papain-like proteases (PLpro). The PLpro have significant functional implications in the innate immune response during SARS-CoV-2 infection and considered an important antiviral target. Both proteases share strikingly similar USP fold with right-handed thumb-palm-fingers structural scaffold and conserved catalytic triad Cys-His-Asp/Asn. In this urgency situation of COVID-19 outbreak, there is a lack of in-vitro facilities readily available to test SARS-CoV-2 inhibitors in whole-cell assays. Therefore, we adopted an alternate route to identify potential USP2 inhibitor through integrated in-silico efforts. After an extensive virtual screening protocol, the best compounds were selected and tested. The compound Z93 showed significant IC(50) value against Jurkat (9.67 muM) and MOTL-4 cells (11.8 muM). The binding mode of Z93 was extensively analyzed through molecular docking, followed by MD simulations, and molecular interactions were compared with SARS-CoV-2. The relative binding poses of Z93 fitted well in the binding site of both proteases and showed consensus pi-pi stacking and H-bond interactions with histidine and aspartate/asparagine residues of the catalytic triad. These results led us to speculate that compound Z93 might be the first potential chemical lead against SARS-CoV-2 PLpro, which warrants in-vitro evaluations.
  • |*COVID-19 Drug Treatment[MESH]
  • |Antiviral Agents/chemistry/*pharmacology[MESH]
  • |COVID-19/virology[MESH]
  • |Cell Line, Tumor[MESH]
  • |Coronavirus 3C Proteases/*antagonists & inhibitors/metabolism[MESH]
  • |Coronavirus Protease Inhibitors/chemistry/*pharmacology[MESH]
  • |Drug Evaluation, Preclinical[MESH]
  • |Humans[MESH]
  • |Jurkat Cells[MESH]
  • |Models, Molecular[MESH]
  • |Molecular Structure[MESH]
  • |SARS-CoV-2/*drug effects/*enzymology[MESH]


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