L-leucine(in) + L-phenylalanine(out) = L-leucine(out) + L-phenylalanine(in)
l-leucine(in) + l-phenylalanine(out) = l-leucine(out) + l-phenylalanine(in)
L-leucine(in) + L-phenylalanine(out) = L-leucine(out) + L-phenylalanine(in)
l-leucine(in) + l-phenylalanine(out) = l-leucine(out) + l-phenylalanine(in)