1XDI:
reference: Characterization of a new member of the flavoprotein disulfide reductase family of enzymes from mycobacterium tuberculosis., Argyrou A, Vetting MW, Blanchard JS, J Biol Chem 2004 Sep 29;. PMID: 15456792

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