FIGURE 4.
GuHCl-induced unfolding of T. thermophilus TtCuA at different values of pH at 20°C. (A) Oxidized holo-protein (46.2 μM) at pH 3.5 (▪), pH 4 (•), pH 4.5 (▴), pH 5 (○), pH 5.5 (♦), pH 6 (▾), and pH 7 (▸). (B) Reduced holo-protein (12.2 μM) at pH 4.5 (▪), pH 5 (•), pH 5.5 (▴), pH 6 (▾), and pH 7 (♦). (C) Apo TtCuA (16 μM) at pH 3.5 (▪), pH 4 (•), pH 4.5 (▾), pH 5 (▴), and pH 6 (♦).
