4G1V:
reference: Active site analysis of yeast flavohemoglobin based on its structure with a small ligand or econazole., Hammi EE, Warkentin E, Demmer U, Marzouki NM, Ermler U, Baciou L, FEBS J. 2012 Oct 25. doi: 10.1111/febs.12043. PMID: 23095020

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