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Molecular Docking Analysis of Chloroquine and Hydroxychloroquine and Design of Anti-SARS-CoV2 Protease Inhibitor

Author

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  • Usman Abdulfatai
  • Adamu Uzairu
  • Gideon Adamu Shallangwa
  • Sani Uba

Abstract

In this present investigation, simulated molecular docking study of chloroquine and hydroxychloroquine compounds were investigated on the SARS-CoV2 enzyme to determine the types of amino acids responsible for the biochemical reaction at the binding site. A structure-based docking design technique was explored in designing a novel derivative of chloroquine for the treatment and management of new COVID 19 disease. To achieve this, the molecular docking simulation method was used to investigate the level of chloroquine and hydroxychloroquine (Drugs presently under clinical trial) interactions on SARS-CoV2 enzyme (a causative agent of COVID 19 disease). Chloroquine and hydroxychloroquine which has been debated as drugs for the management of COVID 19 were subjected to molecular docking analysis, and the binding energies generated were found to be -6.1 kcal/mol and -6.8 kcal/mol respectively. Moreover, novel 2-((4-((7-chloroquinolin-4 yl) amino)pentyl)((methylamino)methyl)amino) ethan-1-ol as an anti-SARS-CoV2 protease was designed through the structural modification of hydroxychloroquine. The binding energy of this drug candidate was found to be -6.9 kcal/mol. This novel drug was found to formed hydrogen and conventional interactions with the binding site of SARS-CoV2 protease through amino acids such as Glutamic acid (GLU166), Glycine (GLY143), Phenylalanine (PHE140), Asparagine (ASN142), Histidine (HIS163), His (HIS172, HIS41, HIS163), Leucine (LEU41, LEU27), Glycine (GLY143), Glutamine (GLN189), Methionine (MET49, MET165), Serine (SER 46), Cysteine (CYS145) and Threonine (THR25). With this binding energy, this new drug candidate could bind better to the human SARS-CoV2 protease’ binding site. This research provides a clue for other scientists on various ways of designing and identify the types of amino acids that may be responsible for biochemical action on SARS-CoV2 protease.

Suggested Citation

  • Usman Abdulfatai & Adamu Uzairu & Gideon Adamu Shallangwa & Sani Uba, 2020. "Molecular Docking Analysis of Chloroquine and Hydroxychloroquine and Design of Anti-SARS-CoV2 Protease Inhibitor," Modern Applied Science, Canadian Center of Science and Education, vol. 14(10), pages 1-52, October.
    • Handle: RePEc:ibn:masjnl:v:14:y:2020:i:10:p:52
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    References listed on IDEAS

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    1. Clotilde Chatre & François Roubille & Hélène Vernhet & Christian Jorgensen & Yves-Marie Pers, 2018. "Cardiac Complications Attributed to Chloroquine and Hydroxychloroquine: A Systematic Review of the Literature," Drug Safety, Springer, vol. 41(10), pages 919-931, October.
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    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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