6C3C:
reference: Snapshots of the Catalytic Cycle of an O2, Pyridoxal Phosphate-Dependent Hydroxylase., Hedges JB, Kuatsjah E, Du YL, Eltis LD, Ryan KS, ACS Chem Biol. 2018 Feb 28. doi: 10.1021/acschembio.8b00039. PMID: 29466666

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