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Selected favorable vdW and Electrostatic interactions between residues at the RBD/ACE2 binding interface. The x-axis is the interaction energies (Energy in kcal/mol), while y-axis reflects the selected pairs of residues at the RBD/ACE2 interface. a) and b) Depiction of vdW and electrostatic interaction energies, respectively, associated with each structure (wild type (magenta), T478K mutated structure (red), L452R (black), and structures with double mutations (blue).
