2WNX:
reference: Structure of a family 3b' carbohydrate-binding module from the Cel9V glycoside hydrolase from Clostridium thermocellum: structural diversity and implications for carbohydrate binding., Petkun S, Jindou S, Shimon LJ, Rosenheck S, Bayer EA, Lamed R, Frolow F, Acta Crystallogr D Biol Crystallogr. 2010 Jan;66(Pt 1):33-43. Epub 2009, Dec 21. PMID: 20057047

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