Table 1.

Protein-ligand complexes examined in this study

	Protein	Ligands (n)
1	Serine/threonine-protein kinase Chk1	8
2	Acetylcholinesterase	1
3	Tyrosine phosphatase 1B	10
4	Beta-glucosidase A	14
5	Trypsin	37
6	Thrombin	17
7	Coagulation factor Xa	18
8	Urokinase-type plasminogen activator	9
9	Stromelysin-1	6
10	Thermolysin	11
11	Penicillin amidohydrolase	6
12	Carbonic anhydrase II	20
13	Scytalone dehydratase	5
14	HIV-1 protease	30
15	Endothiapepsin	6
16	Oligopeptide binding protein	28