Table 1.

Kinetic and affinity constants

Ligand	rhIL-18			rmIL-18
	KOn, 104/Ms	KOff, 10−4/s	Kd, nM	KOn, 105/Ms	KOff, 10−4/s	Kd, nM
hIL-18BP	7.23  ±  0.08	0.31  ±  0.09	0.4  ±  0.1	2.0  ±  0.3	0.19  ±  0.08	0.09  ±  0.03
MC54L	9.7 ±  0.2	10  ±  1	10  ±  1	2.9  ±  0.6	20  ± 2	7.2  ±  0.9
MC53L	7  ±  1	1.5  ±  0.4	2.1  ±  0.7	4.2  ±  0.2	0.4  ±  0.3	0.9  ±  0.7