Fig. 2.

Showing the 3D interaction of SARS-CoV-2 spike protein (in rainbow color with ribbon pattern) with a (Doxorubicin), c (Exemestane) and e (Gatifloxacin). b (Doxorubicin), d (Exemestane), and f (Gatifloxacin) showing 2D graphical representation amino acid residues involved in hydrophobic interaction (shown by different color in a sphere) and different color dotted line showing different types of bonding including hydrogen bonds formation during drug and spike protein interaction. All drug compounds shown by grey color in the center with stick pattern. 3D and 2D graphics were generated by Discovery Studio Visualizer 2020.