preferred_name: (R)-lactate(in) + H(+)(in) <=> (R)-lactate(out) + H(+)(out)
preferred_name_lc: (r)-lactate(in) + h(+)(in) <=> (r)-lactate(out) + h(+)(out)
label: (R)-lactate(in) + H(+)(in) <=> (R)-lactate(out) + H(+)(out)
label_lc: (r)-lactate(in) + h(+)(in) <=> (r)-lactate(out) + h(+)(out)