3NZP:
reference: Structures of bacterial biosynthetic arginine decarboxylases., Forouhar F, Lew S, Seetharaman J, Xiao R, Acton TB, Montelione GT, Tong L, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2010 Dec 1;66(Pt, 12):1562-6. Epub 2010 Nov 16. PMID: 21139196

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