MM/GBSA results for all the complexes including vdW, electrostatic and the total binding energy. All the energies are given in kcal mol⁻¹.

Complexes names	vdW	Electrostatic	SA	GB	Total
C1-RBD	−51.25	−28.14	−16.32	35.33	−60.38
C2-RBD	−36.72	−20.51	−6.55	22.34	−41.44
C3-RBD	−31.85	−17.48	−13.52	26.63	−36.22
C4-RBD	−45.77	−23.75	−11.36	36.58	−44.30