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10.1038/s41467-021-23313-7

http://scihub22266oqcxt.onion/10.1038/s41467-021-23313-7
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34031399!8144557!34031399
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suck abstract from ncbi


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pmid34031399      Nat+Commun 2021 ; 12 (1): 3061
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  • Inhibition mechanism of SARS-CoV-2 main protease by ebselen and its derivatives #MMPMID34031399
  • Amporndanai K; Meng X; Shang W; Jin Z; Rogers M; Zhao Y; Rao Z; Liu ZJ; Yang H; Zhang L; O'Neill PM; Samar Hasnain S
  • Nat Commun 2021[May]; 12 (1): 3061 PMID34031399show ga
  • The SARS-CoV-2 pandemic has triggered global efforts to develop therapeutics. The main protease of SARS-CoV-2 (M(pro)), critical for viral replication, is a key target for therapeutic development. An organoselenium drug called ebselen has been demonstrated to have potent M(pro) inhibition and antiviral activity. We have examined the binding modes of ebselen and its derivative in M(pro) via high resolution co-crystallography and investigated their chemical reactivity via mass spectrometry. Stronger M(pro) inhibition than ebselen and potent ability to rescue infected cells were observed for a number of derivatives. A free selenium atom bound with cysteine of catalytic dyad has been revealed in crystallographic structures of M(pro) with ebselen and MR6-31-2 suggesting hydrolysis of the enzyme bound organoselenium covalent adduct and formation of a phenolic by-product, confirmed by mass spectrometry. The target engagement with selenation mechanism of inhibition suggests wider therapeutic applications of these compounds against SARS-CoV-2 and other zoonotic beta-corona viruses.
  • |Antiviral Agents/pharmacology[MESH]
  • |Azoles/chemistry/*pharmacology[MESH]
  • |Catalytic Domain[MESH]
  • |Coronavirus 3C Proteases/*antagonists & inhibitors/metabolism[MESH]
  • |Crystallography, X-Ray[MESH]
  • |Cysteine/chemistry[MESH]
  • |Hydrolysis[MESH]
  • |Isoindoles[MESH]
  • |Models, Molecular[MESH]
  • |Organoselenium Compounds/chemistry/*pharmacology[MESH]
  • |Protease Inhibitors/chemistry/pharmacology[MESH]
  • |Reference Standards[MESH]
  • |SARS-CoV-2/drug effects/*enzymology[MESH]
  • |Salicylanilides/chemistry/pharmacology[MESH]


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