Table 1.

Receptor-ligand based pharmacophore models and their distinct features.

Model No	Number of Features	Feature Set *	Selectivity
Model 1	5	HBD, HBD, HyP, HyP, HBA	9.84
Model 2	5	HBD, HyP, HyP, HBA, HBA	8.93
Model 3	5	HBD, HyP, HyP, HyP, HBA	8.93
Model 4	4	HBD, HBD, HyP, HBA	8.33
Model 5	4	HBD, HBD, HyP, HBA	8.33
Model 6	4	HBD, HBD, HyP, HyP	8.33
Model 7	5	HBA, HBA, HyP, HyP, HyP	8.01
Model 8	4	HBD, HBA, HyP, HyP	7.41
Model 9	4	HBD, HBA, HyP, HyP	7.41
Model 10	4	HBD, HBA, HyP, HyP	7.41

* HBD, hydrogen bond donor; HBA, hydrogen bond acceptor; HyP, hydrophobic.