1SBZ:
reference: Crystal structure of a dodecameric FMN-dependent UbiX-like decarboxylase (Pad1) from Escherichia coli O157: H7., Rangarajan ES, Li Y, Iannuzzi P, Tocilj A, Hung LW, Matte A, Cygler M, Protein Sci 2004 Nov;13(11):3006-16. Epub 2004 Sep 30. PMID: 15459342

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