5JQU:
reference: An Evolved Orthogonal Enzyme/Cofactor Pair., Reynolds EW, McHenry MW, Cannac F, Gober JG, Snow CD, Brustad EM, J Am Chem Soc. 2016 Sep 28;138(38):12451-8. doi: 10.1021/jacs.6b05847. Epub 2016 , Sep 16. PMID: 27575374

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