Fig. 5: Interactions at Ca²⁺ binding site 3.

Ca²⁺ is shown as either purple or green spheres, water molecules as red spheres and H-bonds as broken lines. a Closeup of Ca²⁺ binding site 3 in TG3 without Z-DON (PDB ID 8OXW). b Comparison of TG3 with and without Z-DON. c Closeup of Ca²⁺ binding site 3 in TG3 with Z-DON bound (PDB ID 8OXX).