6B2X:
reference: The crystal structure of the Yersinia pestis iron chaperone YiuA reveals a basic triad binding motif for the chelated metal., Radka CD, Chen D, DeLucas LJ, Aller SG, Acta Crystallogr D Struct Biol. 2017 Nov 1;73(Pt 11):921-939. doi:, 10.1107/S2059798317015236. Epub 2017 Oct 26. PMID: 29095164

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