5N08:
reference: Crystal structures of the NO sensor NsrR reveal how its iron-sulfur cluster modulates DNA binding., Volbeda A, Dodd EL, Darnault C, Crack JC, Renoux O, Hutchings MI, Le Brun NE, Fontecilla-Camps JC, Nat Commun. 2017 Apr 20;8:15052. doi: 10.1038/ncomms15052. PMID: 28425466

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