D-lysine(in) + L-ornithine(out) <=> D-lysine(out) + L-ornithine(in)
d-lysine(in) + l-ornithine(out) <=> d-lysine(out) + l-ornithine(in)
D-lysine(in) + L-ornithine(out) <=> D-lysine(out) + L-ornithine(in)
d-lysine(in) + l-ornithine(out) <=> d-lysine(out) + l-ornithine(in)