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10.1007/s12038-020-00102-w

http://scihub22266oqcxt.onion/10.1007/s12038-020-00102-w
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33184246!7561504!33184246
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suck abstract from ncbi


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pmid33184246      J+Biosci 2020 ; 45 (1): ä
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  • Identification of a repurposed drug as an inhibitor of Spike protein of human coronavirus SARS-CoV-2 by computational methods #MMPMID33184246
  • Unni S; Aouti S; Thiyagarajan S; Padmanabhan B
  • J Biosci 2020[]; 45 (1): ä PMID33184246show ga
  • Severe acute respiratory syndrome coronavirus (SARS-CoV-2) is an emerging new viral pathogen that causes severe respiratory disease. SARS-CoV-2 is responsible for the outbreak of COVID-19 pandemic worldwide. As there are no confirmed antiviral drugs or vaccines currently available for the treatment of COVID-19, discovering potent inhibitors or vaccines are urgently required for the benefit of humanity. The glycosylated Spike protein (S-protein) directly interacts with human angiotensin-converting enzyme 2 (ACE2) receptor through the receptor-binding domain (RBD) of S-protein. As the S-protein is exposed to the surface and is essential for entry into the host, the S-protein can be considered as a first-line therapeutic target for antiviral therapy and vaccine development. In silico screening, docking, and molecular dynamics simulation studies were performed to identify repurposing drugs using DrugBank and PubChem library against the RBD of S-protein. The study identified a laxative drug, Bisoxatin (DB09219), which is used for the treatment of constipation and preparation of the colon for surgical procedures. It binds nicely at the S-protein-ACE2 interface by making substantial pi-pi interactions with Tyr505 in the 'Site 1' hook region of RBD and hydrophilic interactions with Glu406, Ser494, and Thr500. Bisoxatin consistently binds to the protein throughout the 100 ns simulation. Taken together, we propose that the discovered molecule, Bisoxatin may be a promising repurposable drug molecule to develop new chemical libraries for inhibiting SARS-CoV-2 entry into the host.
  • |*Drug Repositioning[MESH]
  • |Antiviral Agents/chemistry/therapeutic use[MESH]
  • |Betacoronavirus/*drug effects[MESH]
  • |COVID-19[MESH]
  • |Coronavirus Infections/*drug therapy/virology[MESH]
  • |Humans[MESH]
  • |Laxatives/chemistry/therapeutic use[MESH]
  • |Molecular Dynamics Simulation[MESH]
  • |Oxazines/*pharmacology[MESH]
  • |Pandemics[MESH]
  • |Pneumonia, Viral/*drug therapy/virology[MESH]
  • |Protein Conformation[MESH]
  • |SARS-CoV-2[MESH]


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