3EXU:
reference: Crystallographic and activity-based evidence for thumb flexibility and its relevance in glycoside hydrolase family 11 xylanases., Pollet A, Vandermarliere E, Lammertyn J, Strelkov SV, Delcour JA, Courtin CM, Proteins. 2009 Mar 31. PMID: 19422059

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