In Silico Identification of a Potent Arsenic Based Approved Drug Darinaparsin against SARS-CoV-2: Inhibitor of RNA Dependent RNA polymerase (RdRp) and Essential Proteases

Author(s):  
Trinath Chowdhury ◽  
Gourisankar Roymahapatra ◽  
Santi M. Mandal

Background: COVID-19 is a life threatening novel corona viral infection to our civilization and spreading rapidly. Terrific efforts are generous by the researchers to search for a drug to control SARS-CoV-2. Methods: Here, a series of arsenical derivatives were optimized and analyzed with in silico study to search the inhibitor of RNA dependent RNA polymerase (RdRp), the major replication factor of SARS-CoV-2. All the optimized derivatives were blindly docked with RdRp of SARS-CoV-2 using iGEMDOCK v2.1. Results: Based on the lower idock score in the catalytic pocket of RdRp, darinaparsin (-82.52 kcal/mol) revealed most effective among them. Darinaparsin strongly binds with both Nsp9 replicase protein (-8.77 kcal/mol) and Nsp15 endoribonuclease (-8.3 kcal/mol) of SARS-CoV-2 as confirmed from the AutoDock analysis. During infection, the ssRNA of SARS-CoV2 is translated into large polyproteins forming viral replication complex by specific proteases like 3CL protease and papain protease. This is also another target to control the virus infection where darinaparsin also perform the inhibitory role to proteases of 3CL protease (-7.69 kcal/mol) and papain protease (-8.43 kcal/mol). Conclusion: In host cell, the furin protease serves as a gateway to the viral entry and darinaparsin docked with furin protease which revealed a strong binding affinity. Thus, screening of potential arsenic drugs would help in providing the fast invitro to in-vivo analysis towards development of therapeutics against SARS-CoV-2.

Author(s):  
Pawan Kumar Doharey ◽  
Vishal Singh ◽  
Mallikarjuna Rao Gedda ◽  
Amaresh Kumar Sahoo ◽  
Pritish Kumar Varadwaj ◽  
...  

Author(s):  
Neetu Agrawal ◽  
Ahsas Goyal

: Due to the extremely contagious nature of SARS-COV-2, it presents a significant threat to humans worldwide. A plethora of studies are going on all over the world to discover the drug to fight SARS-COV-2. One of the most promising targets is RNA-dependent RNA polymerase (RdRp), responsible for viral RNA replication in host cells. Since RdRp is a viral enzyme with no host cell homologs, it allows the development of selective SARS-COV-2 RdRp inhibitors. A variety of studies used in silico approaches for virtual screening, molecular docking, and repurposing of already existing drugs and phytochemicals against SARS-COV-2 RdRp. This review focuses on collating compounds possessing the potential to inhibit SARS-COV-2 RdRp based on in silico studies to give medicinal chemists food for thought so that the existing drugs can be repurposed for the control and treatment of ongoing COVID-19 pandemic after performing in vitro and in vivo experiments.


Author(s):  
Brahmaiah Pendyala ◽  
Ankit Patras

<p>As novel corona virus (COVID-19) infections has spread throughout the world, world health organization (WHO) has announced COVID-19 as a pandemic infection. Henceforth investigators are conducting extensive research to find possible therapeutic agents against COVID-19. Main protease (Mpro) that plays an essential role in processing the polyproteins that are translated from the 2019-nCOV RNA and RNA-dependent RNA polymerase (RdRp) that catalyzes the replication of RNA from RNA template becomes as a potential targets for in silico screening of effective therapeutic compounds to COVID-19. In this study we used COVID-19 Docking Server to predict potential food bioactive compounds to inhibit Mpro and RdRp. The results showed that Phycocyanobilin, Riboflavin, Cyanidin, Daidzein, Genistein are potent inhibitor bioactive compounds to Mpro and RdRp in comparison to antiviral drugs. Though, further in vitro and/or in vivo research is required to validate the docking results. <br></p>


Author(s):  
Brahmaiah Pendyala ◽  
Ankit Patras

<p>As novel corona virus (COVID-19) infections has spread throughout the world, world health organization (WHO) has announced COVID-19 as a pandemic infection. Henceforth investigators are conducting extensive research to find possible therapeutic agents against COVID-19. Main protease (Mpro) that plays an essential role in processing the polyproteins that are translated from the 2019-nCOV RNA and RNA-dependent RNA polymerase (RdRp) that catalyzes the replication of RNA from RNA template becomes as a potential targets for in silico screening of effective therapeutic compounds to COVID-19. In this study we used COVID-19 Docking Server to predict potential food bioactive compounds to inhibit Mpro and RdRp. The results showed that Phycocyanobilin, Riboflavin, Cyanidin, Daidzein, Genistein are potent inhibitor bioactive compounds to Mpro and RdRp in comparison to antiviral drugs. Though, further in vitro and/or in vivo research is required to validate the docking results. <br></p>


Author(s):  
Brahmaiah Pendyala ◽  
Ankit Patras

<p>As novel corona virus (COVID-19) infections has spread throughout the world, world health organization (WHO) has announced COVID-19 as a pandemic infection. Henceforth investigators are conducting extensive research to find possible therapeutic agents against COVID-19. Main protease (Mpro) that plays an essential role in processing the polyproteins that are translated from the COVID-19 RNA becomes and RNA-dependent RNA polymerase (RdRp) that catalyzes the replication of RNA from RNA template as a potential targets for in silico screening of effective therapeutic compounds to COVID-19. In this study we used COVID-19 Docking Server to predict potential food bioactive compounds to inhibit Mpro and RdRp. The results showed that Phycocyanobilin, Riboflavin, Cyanidin, Daidzein, Genistein are potent inhibitor bioactive compounds to Mpro and RdRp in comparison to antiviral drugs. Though, further in vitro and/or in vivo research is required to validate the docking results. <br></p>


Author(s):  
Daiahun Thabah ◽  
Donkupar Syiem ◽  
Careen Liza Pakyntein ◽  
Sagnik Banerjee ◽  
Cynthia Erica Kharshiing ◽  
...  

Author(s):  
Antonio Wlisses da Silva ◽  
Maria Kueirislene A. Ferreira ◽  
Lucas Ramos Pereira ◽  
Emanuela L. Rebouças ◽  
Marnielle Rodrigues Coutinho ◽  
...  

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