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. 2020 Nov 13:1–16. doi: 10.1080/07391102.2020.1846624

Table 1.

The values of binding affinity (kcal/mol) of molecular docking between various targets of SARS-CoV-2 and all selected phyto-compounds with comparison to reference compounds.

Sr. No. Ligand Source Plant PubChem ID Chemical Group Binding affinity (kcal/mol)
6M71
(RNA polymerase)
6LU7
(Main Protease/3CLpro)
1 Andrographolide Andrographis paniculata 5318517 Diterpenoid −6.3 6.5
2 Hydro andrographolide 72191643 Diterpenoid −6.3 6.1
3 Iso andrographolide 101563021 Diterpenoid −6.3 6.1
4 Neo andrographolide 9848024 Diterpenoid −7.0 6.5
5 Oxo andrographolide 101593061 Diterpenoid −7.1 6.9
6 Mulberroside A Morus alba 6443484 Phenols 9.1 6.4
7 Mulberroside C 190453 Phenols 8.1 6.3
8 Mulberroside E 10030502 Phenols 9.0 7.0
9 Mulberroside F 60208818 Phenols 8.8 6.7
10 Mimusopic acid Mimusops elengi 6712545 Triterpene −6.5 6.2
11 Glycyrrhizin Glycyrrhiza glabara 46783814 Triterpenoid −7.1 −5.3
12 Curcumin Curcuma longa 969516 Phenols −7.0 −5.2
13 Nimbidinin Azardirachta indica 101306757 Triterpene −7.1 −5.7
14 Nimbolide 86287562 Triterpene 7.8 −5.3
15 Emblicanin A Phyllanthus emblica 119058016 Tannins 9.2 −5.7
16 Emblicanin B 119058017 Tannins −7.8 −3.9
17 Punigluconin 44631480 Tannins 8.7 6.5
18 Chebulic acid Terminalia chebula 12302892 Phenols −6.3 6.5
19 Arjunolic acid Terminalia arjuna 73641 Triterpenoid −7.3 −5.4
20 Anolignan A Terminalia bellerica 72391 Lignan −7.0 6.5
21 Anolignan B 72388 Lignan −6.0 6.5
22 Anolignan C 454714 Lignan −6.0 6.5
23 Remdesivir (RdRp) 121304016   7.5 −5.1
24 Thymoquinone 10281   −5.6 −5.1
25 Hydroxychloroquine 3652   −5.2 −5.7
26 Favipiravir 492405   −5.2  
27 Darunavir(Main Protease/3CLpro) 213039   5.9
28 Nelfinavir 64143   −5.8

Bold values signifies higher binding affinity as compared to reference drug.