1YKJ:
reference: Removal of a methyl group causes global changes in p-hydroxybenzoate hydroxylase., Cole LJ, Gatti DL, Entsch B, Ballou DP, Biochemistry 2005 Jun 7;44(22):8047-58. PMID: 15924424

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