4D47:
reference: The crystal structure of Erwinia amylovora levansucrase provides a snapshot of the products of sucrose hydrolysis trapped into the active site., Wuerges J, Caputi L, Cianci M, Boivin S, Meijers R, Benini S, J Struct Biol. 2015 Jul 21. pii: S1047-8477(15)30035-6. doi:, 10.1016/j.jsb.2015.07.010. PMID: 26208466

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