Table 2. Binding ability of ligands to mutant and wild-type CbuqPBP1.

Ligands	IC50 (µM)			Ki (µM)
	PBP1	H53A	F69A	PBP1	H53A	F69A
benzothiazole	13.426	–	10.538	9.822	–	7.305
dibutyl phthalate	16.889	–	20.04	12.355	–	13.893
cedrol	29.953	–	–	21.912	–	–