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10.1042/BCJ20210198

http://scihub22266oqcxt.onion/10.1042/BCJ20210198
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34198326!8286829!34198326
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suck abstract from ncbi


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pmid34198326      Biochem+J 2021 ; 478 (13): 2445-2464
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  • Identifying SARS-CoV-2 antiviral compounds by screening for small molecule inhibitors of nsp14/nsp10 exoribonuclease #MMPMID34198326
  • Canal B; McClure AW; Curran JF; Wu M; Ulferts R; Weissmann F; Zeng J; Bertolin AP; Milligan JC; Basu S; Drury LS; Deegan TD; Fujisawa R; Roberts EL; Basier C; Labib K; Beale R; Howell M; Diffley JFX
  • Biochem J 2021[Jul]; 478 (13): 2445-2464 PMID34198326show ga
  • SARS-CoV-2 is a coronavirus that emerged in 2019 and rapidly spread across the world causing a deadly pandemic with tremendous social and economic costs. Healthcare systems worldwide are under great pressure, and there is an urgent need for effective antiviral treatments. The only currently approved antiviral treatment for COVID-19 is remdesivir, an inhibitor of viral genome replication. SARS-CoV-2 proliferation relies on the enzymatic activities of the non-structural proteins (nsp), which makes them interesting targets for the development of new antiviral treatments. With the aim to identify novel SARS-CoV-2 antivirals, we have purified the exoribonuclease/methyltransferase (nsp14) and its cofactor (nsp10) and developed biochemical assays compatible with high-throughput approaches to screen for exoribonuclease inhibitors. We have screened a library of over 5000 commercial compounds and identified patulin and aurintricarboxylic acid (ATA) as inhibitors of nsp14 exoribonuclease in vitro. We found that patulin and ATA inhibit replication of SARS-CoV-2 in a VERO E6 cell-culture model. These two new antiviral compounds will be valuable tools for further coronavirus research as well as potentially contributing to new therapeutic opportunities for COVID-19.
  • |*Drug Evaluation, Preclinical[MESH]
  • |Animals[MESH]
  • |Antiviral Agents/*chemistry/*pharmacology[MESH]
  • |Aurintricarboxylic Acid/pharmacology[MESH]
  • |Chlorocebus aethiops[MESH]
  • |Enzyme Assays[MESH]
  • |Exoribonucleases/*antagonists & inhibitors/metabolism[MESH]
  • |Fluorescence[MESH]
  • |High-Throughput Screening Assays[MESH]
  • |Patulin/pharmacology[MESH]
  • |Reproducibility of Results[MESH]
  • |SARS-CoV-2/drug effects/*enzymology[MESH]
  • |Small Molecule Libraries/chemistry/*pharmacology[MESH]
  • |Vero Cells[MESH]
  • |Viral Nonstructural Proteins/*antagonists & inhibitors/metabolism[MESH]


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