| 1SP9: reference: The crystal structures of Zea mays and Arabidopsis 4-hydroxyphenylpyruvate dioxygenase., Fritze IM, Linden L, Freigang J, Auerbach G, Huber R, Steinbacher S, Plant Physiol 2004 Apr;134(4):1388-400. PMID: 15084729 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).