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Molecular Docking Identification for the efficacy of Some Zinc Complexes with Chloroquine and Hydroxychloroquine against Main Protease of COVID-19

Hussein et al., Journal of Molecular Structure, doi:10.1016/j.molstruc.2021.129979
Jan 2021  
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HCQ for COVID-19
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4,100+ studies for 60+ treatments. c19hcq.org
Molecular dynamics analysis recommending Zn (CQ) Cl2(H2O) and Zn (HCQ) Cl2(H2O) as potential inhibitors for COVID-19 Mpro. Zn (HCQ) Cl2(H2O) exhibited a strong binding to the main protease receptor, forming eight hydrogen bonds.
Hussein et al., 25 Jan 2021, peer-reviewed, 2 authors.
In Silico studies are an important part of preclinical research, however results may be very different in vivo.
This PaperHCQAll
Molecular docking identification for the efficacy of some zinc complexes with chloroquine and hydroxychloroquine against main protease of COVID-19
R K Hussein, H M Elkhair
Journal of Molecular Structure, doi:10.1016/j.molstruc.2021.129979
Vast amount of research has been recently conducted to discover drugs for efficacious treatment of corona virus disease 2019 . The ambiguity about using Chloroquine/ Hydroxychloroquine to treat this illness was a springboard towards new methods for improving the adequacy of these drugs. The effective treatment of COVID-19 using Zinc complexes as add-on to Chloroquine/ Hydroxychloroquine has received major attention in this context. The current studies have shed a light on molecular docking and molecular dynamics methodologies as powerful techniques in establishing therapeutic strategies to combat COVID-19 pandemic. We are proposing some zinc compounds coordination to Chloroquine/ Hydroxychloroquine in order to enhance their activity. The molecular docking calculations showed that Zn(QC)Cl2(H2O) has the least binding energy -7.70 Kcal /mol then Zn(HQC)Cl2(H2O) -7.54 Kcal /mol. The recorded hydrogen bonds were recognized in the strongest range of H Bond category distances. Identification of binding site interactions revealed that the interaction of Zn(QC)Cl2(H2O)with the protease of COVID-19 results in three hydrogen bonds, while Zn(HQC)Cl2(H2O) exhibited a strong binding to the main protease receptor by forming eight hydrogen bonds. The dynamic behavior of the proposed complexes was revealed by molecular dynamics simulations. The outcomes obtained from Molecular dynamics calculations approved the stability of Mpro-Zn(CQ/HCQ)Cl2H2O systems. These findings recommend Zn (CQ) Cl2H2O and Zn (HCQ) Cl2H2O as potential inhibitors for COVID-19 Mpro.
Declaration of Competing Interest I have no conflicts of interest to disclose. CRediT
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