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Abstract

IDENTIFICATION AND MOLECULAR DYNAMIC SIMULATION OF FLAVONOIDS FROM MEDITERRANEAN SPECIES OF OREGANO AGAINST THE ZIKA NS2B-NS3 PROTEASE

Anushikha Ghosh, Arka Sanyal and Sameer Sharma*

Abstract

Objective: The Zika virus (ZIKV), is an emerging infectious disease causing severe complications such as microcephaly in infants and Guillain–Barré syndrome in adults. There is no licensed vaccination or approved medicine to treat ZIKV infection. Therefore, extensive research is being carried out to find compounds that can be used effectively as therapeutic molecules to treat ZIKV infection. Oregano, a commonly found herb in the Mediterranean region, has been used predominantly for culinary purposes. The fact that the members of the Origanum species are a storehouse of various bioactive compounds gives us a solid reason to study compounds extracted from it for therapeutic purposes. Methods: In this study, were retrieved 20 Flavonoids found in various Origanum species belonging to the Mediterranean region from the PubChem database and pharmacological analysis using SwissADME and Molecular docking using AutoDock Vina 4.0. were carried out against the NS2B-NS3 protease since it serves as an effective drug target owing to its role in viral replication and immune evasion within the host. The best hit compound(s) were subjected to MD simulation at 100 ns using Desmond Schrodinger to analyze the molecule's stability. Results: We observed Cirsiliol as the best hit compound against the NS2B-NS3 complex with a binding affinity of -8.5 kcal/mol. It also showed good stability during MD simulation. Conclusion: We recommend the use of Cirsiliol for in vitro and in vivo studies for further investigation concerning the ZIKA virus.

Keywords: Oregano, Flavonoids, Molecular Docking, Molecular Dynamics Simulation, Zika Virus, Therapeutics.


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