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. 2018 Jan 23;8:1463. doi: 10.1038/s41598-018-19873-2

Figure 1.

Figure 1

Determination of the relative Cu(I)-binding affinity of de-coppering drugs in competition with Cu1Cox17. Fractional occupancy of Cu(I)-binding sites in Cox17 at different concentrations of PA (a), TR (b), BAL (c), DMS (d) and TTM (e) in a metal competition experiment. Conditions: Cox17 1 μM; 20 mM ammonium acetate, pH = 7.3, DTT 50 μM; T = 25 °C. Results of duplicate experiments are presented with different symbols. The solid line shows the fitting curve with hyperbolic equation (y = P1*(1 − [x/(P2 + x)]) + P3), where P2 = C50.