3IGM:
reference: Structural Determinants of DNA Binding by a P. falciparum ApiAP2 Transcriptional Regulator., Lindner SE, De Silva EK, Keck JL, Llinas M, J Mol Biol. 2010 Jan 22;395(3):558-567. Epub 2009 Nov 10. PMID: 19913037

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