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Table 2 Spike protein binding free energies of top-scoring phytocompounds

From: Compounds of Citrus medica and Zingiber officinale for COVID-19 inhibition: in silico evidence for cues from Ayurveda

Compound name

H bonds

Interacting residues

Binding free energy

Rhoifolin

5

TYR453, SER494, TYR495, THR500

− 58.43

Naringin

5

TYR453, SER494, TYR499, THR500

− 44.48

Neoesperidin

5

TYR453, SER494, GLY494, GLY504

− 60.95

Apigenin 6,8-di-C-glucoside

5

TYR449, TYR453, GLY496, GLY504

− 37.87

Adenine

2

TYR495, GLY496

− 24.18

Hesperidin

2

GLY496, TYR505

− 59.47

6-Gingerol

4

TYR453, SER494, GLY496, TYR505

− 38.60

Xanthin

1

TYR453

− 18.26