5HSA:
reference: Crystal Structure of Alcohol Oxidase from Pichia pastoris., Koch C, Neumann P, Valerius O, Feussner I, Ficner R, PLoS One. 2016 Feb 23;11(2):e0149846. doi: 10.1371/journal.pone.0149846., eCollection 2016. PMID: 26905908

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