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. 2022 Jun 8;10:892093. doi: 10.3389/fchem.2022.892093

TABLE 2.

Contribution of individual energy component in the binding of SARS-CoV-2 WT, Delta, and Omicron with the human ACE2 receptor.

Complex vdW kcal/mol Electrostatic kcal/mol EGB kcal/mol Esurf kcal/mol ΔG solvated kcal/mol ΔG binding kcal/mol
WT RBD-ACE2 -79.99 -1,330.09 1,394.96 -15.38 1,379.58 -26.62
Delta RBD-ACE2 -85.60 -1,669.66 1738.70 -12.65 1726.05 -29.21
Omicron RBD-ACE2 -102.59 -1980.67 2044.90 -14.13 2030.76 -52.50