2ITF:
reference: Haem recognition by a Staphylococcus aureus NEAT domain., Grigg JC, Vermeiren CL, Heinrichs DE, Murphy ME, Mol Microbiol. 2007 Jan;63(1):139-49. PMID: 17229211

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