1WU4:
reference: Structural Basis for the Specificity of the Reducing End Xylose-releasing Exo-oligoxylanase from Bacillus halodurans C-125., Fushinobu S, Hidaka M, Honda Y, Wakagi T, Shoun H, Kitaoka M, J Biol Chem 2005 Apr 29;280(17):17180-6. Epub 2005 Feb 17. PMID: 15718242

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