3FMW:
reference: Crystal structure of Baeyer-Villiger monooxygenase MtmOIV, the key enzyme of the mithramycin biosynthetic pathway ., Beam MP, Bosserman MA, Noinaj N, Wehenkel M, Rohr J, Biochemistry. 2009 Jun 2;48(21):4476-87. PMID: 19364090

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