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(A) Docking results of WG-9 and the N-terminal region of tACE and (B) WG-9 and the C-terminal region of tACE. All interactions in the active site have been simplified. Hydrophobic, polar, and acidic residues of ACE are represented by green, violet, and red rings, respectively. Green arrows show hydrogen bands from donor atom to acceptor. ACE = angiotensin-converting enzyme.
