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In silico identification of novel SARS-COV-2 2'-O-methyltransferase (nsp16) inhibitors: structure-based virtual screening, molecular dynamics simulation and MM-PBSA approaches.
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- Author(s): El Hassab MA;El Hassab MA; Ibrahim TM; Ibrahim TM; Al-Rashood ST; Al-Rashood ST; Alharbi A; Alharbi A; Eskandrani RO; Eskandrani RO; Eldehna WM; Eldehna WM
- Source:
Journal of enzyme inhibition and medicinal chemistry [J Enzyme Inhib Med Chem] 2021 Dec; Vol. 36 (1), pp. 727-736.- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Taylor & Francis Country of Publication: England NLM ID: 101150203 Publication Model: Print Cited Medium: Internet ISSN: 1475-6374 (Electronic) Linking ISSN: 14756366 NLM ISO Abbreviation: J Enzyme Inhib Med Chem Subsets: MEDLINE
- Publication Information: Original Publication: Basingstoke, UK : Taylor & Francis, c2002-
- Subject Terms: Antiviral Agents/*chemistry ; Enzyme Inhibitors/*chemistry ; SARS-CoV-2/*enzymology ; Viral Nonstructural Proteins/*chemistry; Adenosine/analogs & derivatives ; Adenosine/chemistry ; Adenosine/metabolism ; Antiviral Agents/metabolism ; Binding Sites ; Crystallography, X-Ray ; Databases, Pharmaceutical ; Databases, Protein ; Drug Stability ; Enzyme Inhibitors/metabolism ; High-Throughput Screening Assays ; Humans ; Kinetics ; Methyltransferases ; Molecular Docking Simulation ; Molecular Dynamics Simulation ; Protein Binding ; Protein Conformation, alpha-Helical ; Protein Conformation, beta-Strand ; Protein Interaction Domains and Motifs ; SARS-CoV-2/chemistry ; Thermodynamics ; Viral Nonstructural Proteins/antagonists & inhibitors
- Abstract: The novel coronavirus disease COVID-19, caused by the virus SARS CoV-2, has exerted a significant unprecedented economic and medical crisis, in addition to its impact on the daily life and health care systems all over the world. Regrettably, no vaccines or drugs are currently available for this new critical emerging human disease. Joining the global fight against COVID-19, in this study we aim at identifying a potential novel inhibitor for SARS COV-2 2'-O-methyltransferase (nsp16) which is one of the most attractive targets in the virus life cycle, responsible for the viral RNA protection via a cap formation process. Firstly, nsp16 enzyme bound to Sinefungin was retrieved from the protein data bank (PDB ID: 6WKQ), then, a 3D pharmacophore model was constructed to be applied to screen 48 Million drug-like compounds of the Zinc database. This resulted in only 24 compounds which were subsequently docked into the enzyme. The best four score-ordered hits from the docking outcome exhibited better scores compared to Sinefungin. Finally, three molecular dynamics (MD) simulation experiments for 150 ns were carried out as a refinement step for our proposed approach. The MD and MM-PBSA outputs revealed compound 11 as the best potential nsp16 inhibitor herein identified, as it displayed a better stability and average binding free energy for the ligand-enzyme complex compared to Sinefungin.
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Clin Pharmacokinet. 2011 Apr;50(4):229-44. (PMID: 21348537) - Contributed Indexing: Keywords: 3D pharmacophore; COVID-19 therapies; MM-PBSA calculations; SARS COV-2 2′-O-methyltransferase (nsp16) Inhibitor; molecular dynamics
- Accession Number: 0 (Antiviral Agents)
0 (Enzyme Inhibitors)
0 (NSP16 protein, SARS-CoV-2)
0 (Viral Nonstructural Proteins)
EC 2.1.1.- (Methyltransferases)
K72T3FS567 (Adenosine)
W2U467CIIL (sinefungin) - Publication Date: Date Created: 20210309 Date Completed: 20210319 Latest Revision: 20211204
- Publication Date: 20240105
- Accession Number: PMC7946047
- Accession Number: 10.1080/14756366.2021.1885396
- Accession Number: 33685335
- Source:
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