5DAP:
reference: Structure of the Dioxygenase AsqJ: Mechanistic Insights into a One-Pot Multistep Quinolone Antibiotic Biosynthesis., Brauer A, Beck P, Hintermann L, Groll M, Angew Chem Int Ed Engl. 2015 Nov 10. doi: 10.1002/anie.201507835. PMID: 26553478

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).