3SXX:
reference: The precursor form of Hansenula polymorpha copper amine oxidase 1 in complex with CuI and CoII., Klema VJ, Johnson BJ, Klinman JP, Wilmot CM, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2012 May 1;68(Pt 5):501-10., doi: 10.1107/S1744309112012857. Epub 2012 Apr 20. PMID: 22691777

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