3MHU:
reference: Novel insights for dihydroorotate dehydrogenase class 1A inhibitors discovery., Cheleski J, Rocha JR, Pinheiro MP, Wiggers HJ, da Silva AB, Nonato MC, Montanari CA, Eur J Med Chem. 2010 Dec;45(12):5899-909. Epub 2010 Oct 7. PMID: 20965617

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