1UAS:
reference: Crystal structure of rice alpha-galactosidase complexed with D-galactose., Fujimoto Z, Kaneko S, Momma M, Kobayashi H, Mizuno H, J Biol Chem 2003 May 30;278(22):20313-8. PMID: 12657636

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