Table 1. Molecular docking scores and residual amino acid interactions of Oxazole compounds (1-5) against heme-binding protein Hmu Y of Porphyromonas gingivalis (PDB ID: 3H8T).

Ligands	Docking scores/Affinity (kcal/mol)	H-bond	Amino Acid Residual interactions
			Hydrophobic/Pi-Cation	Van dar Waals
1	-10	Arg-79	Lys-204, Asp-81, Lys-151, Ala-157, Met-136	Arg-122, Thr-124, Leu-202, Lys-203, Gly-155
2	-11.3	Thr-148, Thr-124, Asp-81, Tyr-48, Met-136	His-166, His-134, Ala-157, Tyr-127, Tyr-80, Phe-164, Pro-171	Lys-151, Arg-79
3	-9.6	Lys-151	Tyr-80, Phe-164, Ala-157, Arg-79, His-134, Pro-171, Tyr-127	Leu-162, Thr-148, Asp-81, Thr-124, Met-136
4	-10	Lys-151	Pro-171, His-166, His-134, Met-136, Phe-164, Ala-157, Tyr-80	Met-129, Thr-124, Asp-81, Thr-148, Leu-162, Tyr-173
5	-9.4	Lys-151	Tyr-127, Pro-171, His-166, His-134, Ala-157, Tyr-80, Phe-164	Met-136, Met-129, Thr-124, Thr-148, Leu-162
Amoxicillin	-8.6	Tyr-173, Arg-79, Tyr-80, Asp-81	Pro-171	His-78, Ala-157, Lys-151, Thr-124, Tyr-48, Tyr-127, His-166, His-134, Met-129
Moxifloxacin	-8.6	Gln-154, Arg-122	His-134, Phe-164, Met-136, Pro171, Lys-204	Gly-155, Thr-124, Tyr-48, Tyr-80, His-166, Phe-156
Sulfanilamide	-6	Tyr-48, Thr-124, Asp-81	Arg-79	His-78, Arg-122, Lys-151, Tyr-80
Sulfamethoxazole	-8.1	Gly-155, Lys-151, Thr-124, Tyr-48,	Leu-162, Phe-164, Ala-157, Tyr-80	Asp-81, Arg-122, Arg-79, Tyr-127