phosphoenolpyruvate(out) + citrate(in) => phosphoenolpyruvate(in) + citrate(out)
phosphoenolpyruvate(out) + citrate(in) => phosphoenolpyruvate(in) + citrate(out)
phosphoenolpyruvate(out) + citrate(in) => phosphoenolpyruvate(in) + citrate(out)
phosphoenolpyruvate(out) + citrate(in) => phosphoenolpyruvate(in) + citrate(out)