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. 2011 Nov 2;17(3):331–343. doi: 10.1007/s00775-011-0855-y

Fig. 4.

Fig. 4

a UV difference spectra of 30 μM HpSlyD with addition of 0.25–5 molar equiv of Ni2+. The titration curve plotted with ΔA 333 is shown in the inset. b Metal binding affinity of HpSlyD determined by equilibrium dialysis: Ni2+ (circles) and Zn2+ (squares)