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10.1038/s41467-021-20900-6

http://scihub22266oqcxt.onion/10.1038/s41467-021-20900-6
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33510133!7843602!33510133
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suck abstract from ncbi


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pmid33510133      Nat+Commun 2021 ; 12 (1): 668
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  • A small molecule compound with an indole moiety inhibits the main protease of SARS-CoV-2 and blocks virus replication #MMPMID33510133
  • Hattori SI; Higashi-Kuwata N; Hayashi H; Allu SR; Raghavaiah J; Bulut H; Das D; Anson BJ; Lendy EK; Takamatsu Y; Takamune N; Kishimoto N; Murayama K; Hasegawa K; Li M; Davis DA; Kodama EN; Yarchoan R; Wlodawer A; Misumi S; Mesecar AD; Ghosh AK; Mitsuya H
  • Nat Commun 2021[Jan]; 12 (1): 668 PMID33510133show ga
  • Except remdesivir, no specific antivirals for SARS-CoV-2 infection are currently available. Here, we characterize two small-molecule-compounds, named GRL-1720 and 5h, containing an indoline and indole moiety, respectively, which target the SARS-CoV-2 main protease (M(pro)). We use VeroE6 cell-based assays with RNA-qPCR, cytopathic assays, and immunocytochemistry and show both compounds to block the infectivity of SARS-CoV-2 with EC(50) values of 15 +/- 4 and 4.2 +/- 0.7 muM for GRL-1720 and 5h, respectively. Remdesivir permitted viral breakthrough at high concentrations; however, compound 5h completely blocks SARS-CoV-2 infection in vitro without viral breakthrough or detectable cytotoxicity. Combination of 5h and remdesivir exhibits synergism against SARS-CoV-2. Additional X-ray structural analysis show that 5h forms a covalent bond with M(pro) and makes polar interactions with multiple active site amino acid residues. The present data suggest that 5h might serve as a lead M(pro) inhibitor for the development of therapeutics for SARS-CoV-2 infection.
  • |*COVID-19 Drug Treatment[MESH]
  • |Adenosine Monophosphate/analogs & derivatives/pharmacology[MESH]
  • |Alanine/analogs & derivatives/pharmacology[MESH]
  • |Animals[MESH]
  • |Antiviral Agents/pharmacology[MESH]
  • |Cell Line[MESH]
  • |Chlorocebus aethiops[MESH]
  • |Coronavirus Protease Inhibitors/*pharmacology[MESH]
  • |Humans[MESH]
  • |Indoles/pharmacology[MESH]
  • |Pyridines/pharmacology[MESH]
  • |SARS-CoV-2/*drug effects[MESH]
  • |Vero Cells[MESH]


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