3ML1:
reference: The Crystal Structure of Cupriavidus necator Nitrate Reductase in Oxidized and Partially Reduced States., Coelho C, Gonzalez PJ, Moura JJ, Moura I, Trincao J, Joao Romao M, J Mol Biol. 2011 Mar 23. PMID: 21419779

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