4.3 Article

Identification of multi-targeting natural antiviral peptides to impede SARS-CoV-2 infection

期刊

STRUCTURAL CHEMISTRY
卷 34, 期 5, 页码 1743-1758

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SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11224-022-02113-9

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SARS-CoV-2; Antiviral peptides; Comparative modeling; Ab initio modeling; Broad-spectrum drug

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In this study, structure-based virtual screening was used to identify potential peptides targeting SARS-CoV-2. Two promising peptides were selected and evaluated through 3D modeling, docking analysis, and molecular dynamics simulations, suggesting their potential as broad-spectrum drugs for treating SARS-CoV-2.
SARS-CoV-2 and its variants cause serious health concerns throughout the world. The alarming increase in the daily number of cases has become a nightmare in many low-income countries; although some vaccines are available, their high cost and low vaccine production make them unreachable to ordinary people in developing countries. Other treatment strategies are required for novel therapeutic options. The peptide-based drug is one of the alternatives with low toxicity, more specificity, and ease of synthesis. Herein, we have applied structure-based virtual screening to identify potential peptides targeting the critical proteins of SARS-CoV-2. Non-toxic natural antiviral peptides were selected from the enormous number of peptides. Comparative modeling was applied to prepare a 3D structure of selected peptides. 3D models of the peptides were docked using the ClusPro docking server to determine their binding affinity and peptide-protein interaction. The high-scoring peptides were docked with other crucial proteins to analyze multiple targeting peptides. The two best peptides were subjected to MD simulations to validate the structure stability and evaluated RMSD, RMSF, Rg, SASA, and H-bonding from the trajectory analysis of 100 ns. The proposed lead peptides can be used as a broad-spectrum drug and potentially develop as a therapeutic to combat SARS-CoV-2, positively impacting the current pandemic.

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