2MWJ:
reference: O-Glycosylation Effects on Family 1 Carbohydrate-Binding Module Solution Structures., Happs RM, Guan X, Resch MG, Davis MF, Beckham GT, Tan Z, Crowley MF, FEBS J. 2015 Aug 26. doi: 10.1111/febs.13500. PMID: 26307003

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