1UWW:
reference: X-ray crystal structure of a non-crystalline cellulose-specific carbohydrate-binding module: CBM28., Jamal S, Nurizzo D, Boraston AB, Davies GJ, J Mol Biol 2004 May 28;339(2):253-8. PMID: 15136030

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