Table 2. Interaction Kinetic Constants between SB202190 and Different Proteins.

	Ka/M–1 s–1	Kd/s–1	KD/M
Abl1	6.4 × 101	3.5 × 10–3	1.6 × 10–5
Abl1 Y253F	5.7 × 101	1.8 × 10–3	3.2 × 10–5
p38-α	2.9 × 103	1.3 × 10–4	4.3 × 10–8