Table 2.

Binding thermodynamics from ITC.

Ligand	Kd (10−3 M)	ΔH° (kJ/mol)	−TΔS° (kJ/mol)	ΔG° (kJ/mol)
Urocanate	0.28 ± 0.01	11.6 ± 0.2	−31.2 ± 0.2	−19.6 ± 0.1
ImP	1.08 ± 0.03	8.2 ± 0.2	−24.5 ± 0.2	−16.3 ± 0.1
Urocanate–ImP		3.4 ± 0.3	−6.7 ± 0.3	−3.3 ± 0.1

Data are presented as fitted values +/− SD.