3PE9:
reference: Structure and function of the Clostridium thermocellum cellobiohydrolase A X1-module repeat: enhancement through stabilization of the CbhA complex., Brunecky R, Alahuhta M, Bomble YJ, Xu Q, Baker JO, Ding SY, Himmel ME, Lunin VV, Acta Crystallogr D Biol Crystallogr. 2012 Mar;68(Pt 3):292-9. Epub 2012 Feb 14. PMID: 22349231

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