Table 1.

Number of the active compounds for each target used in this study

Target	MW Cutoff	No. Actives	No. Selected	Range RB (Mean)	Theoretical Maximum of Enrich Factor
Thrombin	200–600	847	646	4–29 (12.4)	16.47
ER	200–600	134	105	3–17 (8.5)	96.23
COX-2	200–600	698	695	0–17 (4.0)	15.39
Random database	200–600		10000	0–35 (4.5)