2YDP:
reference: alpha-L-Arabinofuranosylated pyrrolidines as arabinanase inhibitors., Goddard-Borger ED, Carapito R, Jeltsch JM, Phalip V, Stick RV, Varrot A, Chem Commun (Camb). 2011 Sep 14;47(34):9684-6. Epub 2011 Jul 20. PMID: 21773614

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