Table 2.

Average binding energy between spike protein and ACE2 complex and the average RMSD values.

variants	Binding energy (kcal/mol)	RMSD (Å)
Wild type	−73.26 ± 7.46	7.66 ± 1.26 Å
Delta	−82.78 ± 8.84	7.19 ± 1.51 Å
Omicron	−128.35 ± 10.91	8.76 ± 1.16