4GJJ:
reference: Structure of l-rhamnose isomerase in complex with l-rhamnopyranose demonstrates the sugar-ring opening mechanism and the role of a substrate sub-binding site., Yoshida H, Yoshihara A, Teraoka M, Yamashita S, Izumori K, Kamitori S, FEBS Open Bio. 2012 Dec 7;3:35-40. doi: 10.1016/j.fob.2012.11.008. Print 2013. PMID: 23772372

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