5E9O:
reference: Structural basis for cellulose binding by the type A carbohydrate-binding module 64 of Spirochaeta thermophila., Schiefner A, Angelov A, Liebl W, Skerra A, Proteins. 2016 Feb 12. doi: 10.1002/prot.25010. PMID: 26868291

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