6NOR:
reference: Crystal Structure of GenD2, an NAD-Dependent Oxidoreductase Involved in the Biosynthesis of Gentamicin., de Araujo NC, Bury PDS, Tavares MT, Huang F, Parise-Filho R, Leadlay P, Dias MVB, ACS Chem Biol. 2019 May 17;14(5):925-933. doi: 10.1021/acschembio.9b00115. Epub, 2019 Apr 30. PMID: 30995396

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