1U2K:
reference: Structure of the C-terminal domain of the catalase-peroxidase KatG from Escherichia coli., Carpena X, Melik-Adamyan W, Loewen PC, Fita I, Acta Crystallogr D Biol Crystallogr 2004 Oct;60(Pt 10):1824-32. Epub 2004, Sep 23. PMID: 15388929

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