melibiose(out) + Li(+)(out) => melibiose(in) + Li(+)(in)
melibiose(out) + li(+)(out) => melibiose(in) + li(+)(in)
melibiose(out) + Li(+)(out) => melibiose(in) + Li(+)(in)
melibiose(out) + li(+)(out) => melibiose(in) + li(+)(in)