L-dopa(out) + L-phenylalanine(in) => L-dopa(in) + L-phenylalanine(out)
l-dopa(out) + l-phenylalanine(in) => l-dopa(in) + l-phenylalanine(out)
L-dopa(out) + L-phenylalanine(in) => L-dopa(in) + L-phenylalanine(out)
l-dopa(out) + l-phenylalanine(in) => l-dopa(in) + l-phenylalanine(out)