1SI1:
reference: Structural basis for iron binding and release by a novel class of periplasmic iron-binding proteins found in gram-negative pathogens., Shouldice SR, Skene RJ, Dougan DR, Snell G, McRee DE, Schryvers AB, Tari LW, J Bacteriol 2004 Jun;186(12):3903-10. PMID: 15175304

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