Figures & data
Table 1. Best molecular docking results of selected compounds against the target proteins and their interactions.
Figure 1. Genistein interactions with SARS-CoV-2 main protease, visualized in UCSF Chimera. Genistein formed six hydrogen bonds with amino acids: Cys44, Met49, Cys145, Glu166, Arg188 and Gln189.
![Figure 1. Genistein interactions with SARS-CoV-2 main protease, visualized in UCSF Chimera. Genistein formed six hydrogen bonds with amino acids: Cys44, Met49, Cys145, Glu166, Arg188 and Gln189.](/cms/asset/fe5e2f42-028b-4dbe-a493-7e1f40510f0b/tbeq_a_2222196_f0001_c.jpg)
Figure 2. Hesperidin interactions with SARS-CoV-2 main protease, visualized in UCSF Chimera. Hesperidin formed seven hydrogen bonds with amino acids: Thr26, Asn142, Cys145, His164, Glu166 and Gln189.
![Figure 2. Hesperidin interactions with SARS-CoV-2 main protease, visualized in UCSF Chimera. Hesperidin formed seven hydrogen bonds with amino acids: Thr26, Asn142, Cys145, His164, Glu166 and Gln189.](/cms/asset/fb36cd67-036b-4591-88b2-f6e586d612db/tbeq_a_2222196_f0002_c.jpg)
Figure 3. Hesperidin interactions with SARS-CoV-2 papain-like protease, visualized in UCSF Chimera. Hesperidin formed 11 hydrogen bonds with amino acids: Ile23, Asn37, Ala38, Asn40, Lys44, Gly48, Ala50, Gly51 and Ala129.
![Figure 3. Hesperidin interactions with SARS-CoV-2 papain-like protease, visualized in UCSF Chimera. Hesperidin formed 11 hydrogen bonds with amino acids: Ile23, Asn37, Ala38, Asn40, Lys44, Gly48, Ala50, Gly51 and Ala129.](/cms/asset/6ac6e046-672c-443b-8a63-40f2a92db081/tbeq_a_2222196_f0003_c.jpg)
Figure 4. Luteolin interactions with SARS-CoV-2 papain-like protease, visualized in UCSF Chimera. Luteolin formed five hydrogen bonds with amino acids: His45, Gly46, Val49, Ala50 and Ser128.
![Figure 4. Luteolin interactions with SARS-CoV-2 papain-like protease, visualized in UCSF Chimera. Luteolin formed five hydrogen bonds with amino acids: His45, Gly46, Val49, Ala50 and Ser128.](/cms/asset/aa3be183-c1a3-48d2-ad79-dcccd0766314/tbeq_a_2222196_f0004_c.jpg)
Figure 5. Hesperidin interactions with SARS-CoV-2 RNA-dependent RNA polymerase, visualized in UCSF Chimera. Hesperidin formed 10 hydrogen bonds with amino acids: Lys551, Tyr619, Arg624, Thr680, Asp760, Asp761 and Cys813.
![Figure 5. Hesperidin interactions with SARS-CoV-2 RNA-dependent RNA polymerase, visualized in UCSF Chimera. Hesperidin formed 10 hydrogen bonds with amino acids: Lys551, Tyr619, Arg624, Thr680, Asp760, Asp761 and Cys813.](/cms/asset/9fb9e8b5-92fa-4a22-bba5-a97e9e9339da/tbeq_a_2222196_f0005_c.jpg)
Figure 6. Quercetin interactions with SARS-CoV-2 RNA-dependent RNA polymerase, visualized in UCSF Chimera. Quercetin formed seven hydrogen bonds with amino acids: Arg553, Lys621, Cys622, Asp623 and Ser682.
![Figure 6. Quercetin interactions with SARS-CoV-2 RNA-dependent RNA polymerase, visualized in UCSF Chimera. Quercetin formed seven hydrogen bonds with amino acids: Arg553, Lys621, Cys622, Asp623 and Ser682.](/cms/asset/89789dbe-eedf-47b4-a464-cf6fbcaf7dff/tbeq_a_2222196_f0006_c.jpg)
Figure 7. Hesperidin interactions with SARS-CoV-2 spike glycoprotein, visualized in UCSF Chimera. Hesperidin formed five hydrogen bonds with amino acids: Arg408, Phe490, Leu492, Gln498 and Tyr505.
![Figure 7. Hesperidin interactions with SARS-CoV-2 spike glycoprotein, visualized in UCSF Chimera. Hesperidin formed five hydrogen bonds with amino acids: Arg408, Phe490, Leu492, Gln498 and Tyr505.](/cms/asset/9a28184a-2490-4f85-a665-9716353fc2fb/tbeq_a_2222196_f0007_c.jpg)
Figure 8. Fisetin interactions with SARS-CoV-2 spike glycoprotein, visualized in UCSF Chimera. Fisetin formed four hydrogen bonds with amino acids: Arg403, Gly496, Gln498 and Tyr505.
![Figure 8. Fisetin interactions with SARS-CoV-2 spike glycoprotein, visualized in UCSF Chimera. Fisetin formed four hydrogen bonds with amino acids: Arg403, Gly496, Gln498 and Tyr505.](/cms/asset/5163f59b-cfe2-4822-bcaf-c696c4252217/tbeq_a_2222196_f0008_c.jpg)
Supplemental Material
Download PDF (69.9 KB)Data availability
The datasets generated and/or analysed during the current study are available in the RCSB Protein Data Bank [https://www.rcsb.org/] and PubChem database repository [https://pubchem.ncbi.nlm.nih.gov/].
The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.