In silico targeting SARS-CoV-2 spike protein and main protease by biochemical compounds. - GreenMedInfo Summary

: Since there is no general agreement on drug treatment of SARS-CoV-2, the search for a new drug capable of treating COVID-19 is of utmost priority. This study aims to dereplicate the chemical compounds of the methanol extract ofand, and assay the inhibitory effect of these compounds as well as the previously dereplicated components ofagainst SARS-CoV-2 in anstudy. A molecular networking (MN) technique was applied to find the chemical constituents of the extracts. Docking analysis was also used to find the binding affinity of dereplicated components from,, andto COV-2-SP and M. 57 compounds were dereplicated from the MeOH extracts ofandwhich include the class of polyphenols, flavonoids, coumarins, phenylpropanoids, anthocyanins, and dihydrochalcones. Molecular docking analysis indicated a high affinity of about 27 compounds from three mentioned plants against studied targets. kaempferol 3-O-rutinoside, neodiosmin, and querciturone with docking score values of -10.575, -10.208, and - 9.904 Kcal/mol and kvalues of 0.016606, 0.030921, and 0.051749, respectively were found to have the highest affinities against COV-2-SP. 2-phenylethyl beta-primeveroside, curcumin PE, and kaempferol 3-O-rutinoside also indicated the highest affinity against Mwith docking scores of -10.34, -10.126 and - 9.705 and kvalues of 0.024726, 0.035529, and 0.072494, respectively. MN can be successfully used for the dereplication of metabolites from plant extracts. In addition, thebinding energies introduced several inhibitors from,, andfor the treatment of SARS-CoV-2 disease.

Supplementary Information: The online version contains supplementary material available at 10.1007/s11756-021-00881-z.