1OD8:
reference: A xylobiose-derived isofagomine lactam glycosidase inhibitor binds as its amide tautomer., Gloster T, Williams SJ, Tarling CA, Roberts S, Dupont C, Jodoin P, Shareck F, Withers SG, Davies GJ, Chem Commun (Camb). 2003 Apr 21;(8):944-5. PMID: 12744311

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