glycolate(out) + (S)-malate(in) => glycolate(in) + (S)-malate(out)
glycolate(out) + (s)-malate(in) => glycolate(in) + (s)-malate(out)
glycolate(out) + (S)-malate(in) => glycolate(in) + (S)-malate(out)
glycolate(out) + (s)-malate(in) => glycolate(in) + (s)-malate(out)