Table 1. Docking results of all the 5 sterols against COX-1 and -2 receptors.

Receptor with PDB IDs	Ligand	Binding affinity (kcal/mol)	RMSD(Å)	No. of H-bonds	Amino acid residues forming H-bonds
COX-1 (3N8Z)	Comp. 1	-7.64	1.28	3	ASP-135, ASP-158
	Comp. 2	-6.36	1.43	1	GLU-326
	Comp. 3	-7.79	1.09	1	ASP-158
	Comp. 4	-7.85	1.08	0	None
	Comp. 5	-6.44	1.69	1	LEU-115
COX-2 (5F1A)	Comp. 1	-8.49	0.88	2	GLY-225, TYR-373
	Comp. 2	-8.33	1.82	2	ASN-375
	Comp. 3	-8.72	1.06	1	GLY-225
	Comp. 4	-9.02	1.43	1	GLY-225
	Comp. 5	-6.97	1.83	2	ARG-120, GLU-524