Computational guided drug repurposing for targeting 2'-O-ribose methyltransferase of SARS-CoV-2

Copyright © 2020 Elsevier Inc. All rights reserved..

AIMS: The recent outbreak of pandemic severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has led the world towards a global health emergency. Currently, no proper medicine or effective treatment strategies are available; therefore, repurposing of FDA approved drugs may play an important role in overcoming the situation.

MATERIALS AND METHODS: The SARS-CoV-2 genome encodes for 2-O-methyltransferase (2'OMTase), which plays a key role in methylation of viral RNA for evading host immune system. In the present study, the protein sequence of 2'OMTase of SARS-CoV-2 was analyzed, and its structure was modeled by a comparative modeling approach and validated. The library of 3000 drugs was screened against the active site of 2'OMTase followed by re-docking analysis. The apo and ligand-bound 2'OMTase were further validated and analyzed by using molecular dynamics simulation.

KEY FINDINGS: The modeled structure displayed the conserved characteristic fold of class I MTase family. The quality assessment analysis by SAVES server reveals that the modeled structure follows protein folding rules and of excellent quality. The docking analysis displayed that the active site of 2'OMTase accommodates an array of drugs, which includes alkaloids, antivirals, cardiac glycosides, anticancer, steroids, and other drugs. The redocking and MD simulation analysis of the best 5 FDA approved drugs reveals that these drugs form a stable conformation with the 2'OMTase.

SIGNIFICANCE: The results suggested that these drugs may be used as potential inhibitors for 2'OMTase for combating the SARS-CoV-2 infection.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:259

Enthalten in:

Life sciences - 259(2020) vom: 15. Okt., Seite 118169

Sprache:

Englisch

Beteiligte Personen:

Sharma, Kedar [VerfasserIn]
Morla, Sudhir [VerfasserIn]
Goyal, Arun [VerfasserIn]
Kumar, Sachin [VerfasserIn]

Links:

Volltext

Themen:

2-O-methyltransferase
Antiviral Agents
Cap II RNA(nucleoside-2'-)methyltransferase
EC 2.1.1.-
Enzyme Inhibitors
FDA approved drugs
Journal Article
Methyltransferases
Repurposing
SARS-CoV-2
Virtual screening

Anmerkungen:

Date Completed 19.10.2020

Date Revised 15.11.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.lfs.2020.118169

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM31313829X