5B6I:
reference: Directed Evolution of a Fluorinase for Improved Fluorination Efficiency with a Non-native Substrate., Sun H, Yeo WL, Lim YH, Chew X, Smith DJ, Xue B, Chan KP, Robinson RC, Robins EG, Zhao H, Ang EL, Angew Chem Int Ed Engl. 2016 Oct 14. doi: 10.1002/anie.201606722. PMID: 27739177

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