4TVF:
reference: Cytochrome P450 OxyB Catalyzes the First Phenolic Coupling Step in Teicoplanin Biosynthesis., Haslinger K, Maximowitsch E, Brieke C, Koch A, Cryle MJ, Chembiochem. 2014 Oct 30. doi: 10.1002/cbic.201402441. PMID: 25358800

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