Fig. 2. (a) The number of different metalloprotein–ligand complexes that contain different metal ions. (b) The distributions of binding affinity and seven basic ligand physicochemical properties (molecular weight, no. of atoms, polar surface area, log P, HB donor, HB acceptor, and rotatable bond) for the 3079 metalloproteins–ligand complexes. (c) The RMSD distributions given by the three docking tools including Glide SP (left panel), PLANTS (middle panel) and AutoDock Vina (right panel) for the metalloproteins–ligand complexes. (d) The number of successfully redocked complexes given by each docking tool. (e) The cumulative success rate curves with the increasing RMSD given by different docking tools. (f) The success rates for the three docking tools under a RMSD threshold of 2 Å. (g) The scoring power given by different docking tools for the successfully redocked samples.