2XQX:
reference: Structural analysis of a putative family 32 carbohydrate-binding module from the Streptococcus pneumoniae enzyme EndoD., Abbott DW, Boraston A, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Apr 1;67(Pt 4):429-33., Epub 2011 Mar 24. PMID: 21505233

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