Figure 4.

Competition of Ca²⁺ and Mg²⁺ with LCT1-dependent Cd²⁺ uptake. Cd²⁺ uptake rates were determined for INVSc1 controls (○) and LCT1-expressing cells (•) in the presence of different Mg²⁺ (A) and Ca²⁺ (B) concentrations. LCT1-dependent Cd²⁺ uptake (■) was determined by subtracting the rates of control cells from the rates of LCT1-expressing cells. Bars = SE; n = 4.