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Cruzain inhibitors aligned within the binding site of the X-ray structure of cruzain (PDB 3KKU, resolution of 1.28 Å). (A) View of the entire 3D structure of cruzain with the aligned compounds. (B) Magnification of the active site of the enzyme and aligned compounds. The structure of cruzain is depicted as a cartoon, and the inhibitors are represented as sticks.
