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Comparative Docking Studies on Curcumin with COVID-19 Proteins

Suravajhala et al., MDPI AG, doi:10.20944/preprints202005.0439.v3
Jun 2020  
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Curcumin for COVID-19
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In Silico study showing high binding affinity for the SARS-CoV-2 nucleocapsid and nsp10 proteins with curcumin. Authors propose curcumin for COVID-19 drug development.
In Silico studies predict inhibition of SARS-CoV-2 with curcumin or metabolites via binding to the spike Note A, Nag, Moschovou, Kandeil, Singh (B), Boseila (and specifically the receptor binding domain Note B, Kant, Srivastava, Eleraky), Mpro Note C, Moschovou, Kandeil, Srivastava, Naderi Beni, Rajagopal, Rampogu, Sekiou, Singh, Winih Kinasih, Thapa, Bahun, Eleraky, Boseila, RNA-dependent RNA polymerase Note D, Singh (C), Eleraky, ACE2 Note E, Singh (B), Thapa, Alkafaas, nucleocapsid Note F, Hidayah, Suravajhala, and nsp10 Note G, Suravajhala proteins. In Vitro studies demonstrate inhibition of the spike Note A, Mohd Abd Razak (and specifically the receptor binding domain Note B, Goc (B)), Mpro Note C, Bahun, Guijarro-Real, Mohd Abd Razak, Wu, ACE2 Note E, Goc (B), and TMPRSS2 Note H, Goc (B) proteins. In Vitro studies demonstrate efficacy in Calu-3 Note I, Bormann, A549 Note J, Mohd Abd Razak, 293T Note K, Zhang, HEK293-hACE2 Note L, Nittayananta, Wu, 293T/hACE2/TMPRSS2 Note M, Septisetyani, and Vero E6 Note N, Bormann, Eleraky, Kandeil, Leka, Mohd Abd Razak, Nittayananta, Singh, Teshima, Marín-Palma cells. Curcumin is predicted to inhibit the interaction between the SARS-CoV-2 spike protein receptor binding domain and the human ACE2 receptor for the delta and omicron variants Kant, decreases pro-inflammatory cytokines induced by SARS-CoV-2 in peripheral blood mononuclear cells Marín-Palma, and alleviates SARS-CoV-2 spike protein-induced mitochondrial membrane damage and oxidative stress Zhang.
Study covers ivermectin and curcumin.
Suravajhala et al., 7 Jun 2020, preprint, 8 authors. Contact: (corresponding author),
In Silico studies are an important part of preclinical research, however results may be very different in vivo.
This PaperCurcuminAll
Comparative Docking Studies on Curcumin with COVID-19 Proteins
Renuka Suravajhala, Abhinav Parashar, Babita Malik, Viswanathan Arun Nagaraj, Govindarajan Padmanaban, P B Kavi Kishor, Rathnagiri Polavarapu, Prashanth Suravajhala
Highlights 1. Our findings confirm the role of Q163 aminoacid site for potential tethered site or target which is in agreement with ivermectin, the best possible and known drug. 2. We have employed a rigorous strategy in screening the docking complexes from a majority of hypothetical genes or orphan open reading frames, structural and non-structural proteins. 3. We believe that the findings presented in our paper will appeal to researchers working on COVID-19, particularly those interested to characteristically screen docking complexes.
Author contributions: GP, PBK and RP ideated the project. RS and AP jointly analysed the structures and modelled the docking complexes. PS performeddid the protein interaction analyses. AP and RS wrote the first draft with PS, PBK, BM and RP. GP, PBK, PS, VAN and RP proofread the manuscript. Competing interests: None
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