2RGV:
reference: Structural and functional characterization of 2-oxo-histidine in oxidized PerR protein., Traore DA, El Ghazouani A, Jacquamet L, Borel F, Ferrer JL, Lascoux D, Ravanat JL, Jaquinod M, Blondin G, Caux-Thang C, Duarte V, Latour JM, Nat Chem Biol. 2009 Jan;5(1):53-9. Epub 2008 Dec 14. PMID: 19079268

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