2J1E:
reference: The interaction of a carbohydrate-binding module from a Clostridium perfringens N-acetyl-beta-hexosaminidase with its carbohydrate receptor., Ficko-Blean E, Boraston AB, J Biol Chem. 2006 Dec 8;281(49):37748-57. Epub 2006 Sep 21. PMID: 16990278

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