2ZUT:
reference: The Crystal Structure of Galacto-N-biose/Lacto-N-biose I Phosphorylase: A LARGE DEFORMATION OF A TIM BARREL SCAFFOLD., Hidaka M, Nishimoto M, Kitaoka M, Wakagi T, Shoun H, Fushinobu S, J Biol Chem. 2009 Mar 13;284(11):7273-83. Epub 2009 Jan 5. PMID: 19124470

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