Site 2 of the Yersinia pestis substrate-binding protein YfeA is a dynamic surface metal-binding site

Periplasmic chelated iron-binding protein YfeA

32% PEG 4000, 20 mM Bis-Tris propane, pH 6.3, 50 mM sodium chloride, 0.05%(w/v) sodium azide, 10 mM manganese chloride

crystallographic oligomer but monomer in solution