3R6W:
reference: Activation of nitrofurazone by azoreductases: multiple activities in one enzyme., Ryan A, Kaplan E, Laurieri N, Lowe E, Sim E, Sci Rep. 2011;1:63. Epub 2011 Aug 12. PMID: 22355582

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