FIG. 5.

Competitive inhibition of citrate transport in RSO vesicles. Initial rates of [1,5-¹⁴C]citrate uptake were determined in the presence of 1 mM concentrations of the competing substrates. The bars represent the initial rates of uptake in the absence and presence of competing substrates. Shown are the averages and standard deviations (error bars) of the results of two independent experiments.