3MHX:
reference: Structure of Stenotrophomonas maltophilia FeoA complexed with zinc: a unique prokaryotic SH3-domain protein that possibly acts as a bacterial ferrous iron-transport activating factor., Su YC, Chin KH, Hung HC, Shen GH, Wang AH, Chou SH, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2010 Jun 1;66(Pt, 6):636-42. Epub 2010 May 25. PMID: 20516589

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