1E5N:
reference: X-ray crystallographic study of xylopentaose binding to Pseudomonas fluorescens xylanase A., Leggio LL, Jenkins J, Harris GW, Pickersgill RW, Proteins 2000 Nov 15;41(3):362-73. PMID: 11025547

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