1TXR:
reference: Spectroscopic and X-ray Crystallographic Characterization of Bestatin Bound to the Aminopeptidase from Aeromonas (Vibrio) proteolytica(,)., Stamper CC, Bienvenue DL, Bennett B, Ringe D, Petsko GA, Holz RC, Biochemistry 2004 Aug 3;43(30):9620-9628. PMID: 15274616

This OCA Structure page
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