6I1A:
reference: Rutinosidase from Aspergillus niger: crystal structure and insight into the enzymatic activity., Pachl P, Kapesova J, Brynda J, Biedermannova L, Pelantova H, Bojarova P, Kren V, Rezacova P, Kotik M, FEBS J. 2020 Jan 13. doi: 10.1111/febs.15208. PMID: 31943739

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