Catalytic residues are shown in ball-and-stick representation: Ser158 in orange, Asp340 in pink and His392 in purple. Chymostatin is shown in grey in ball-and-stick representation.
Catalytic residues are shown in ball-and-stick representation: His149 in purple, Asp171 in pink and Ser253 in orange. Chymostatin A is shown in grey in ball-and-stick representation.
Catalytic residues are shown in ball-and-stick representation: Asp174 in pink, His209 in purple and Ser513 in orange. The structural magnesium atoms are shown as green CPK spheres. The structural calcium atoms are shown as yellow CPK spheres. The bound inhibitor, chymostatin, is shown in grey ball-and-stick representation.
