3EJS:
reference: Structural Investigation of the Binding of 5-Substituted Swainsonine Analogues to Golgi alpha-Mannosidase II., Kuntz DA, Nakayama S, Shea K, Hori H, Uto Y, Nagasawa H, Rose DR, Chembiochem. 2010 Mar 5;11(5):673-680. PMID: 20209559

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