preferred_name: (S)-lactate(in) + H(+)(in) => (S)-lactate(out) + H(+)(out)
preferred_name_lc: (s)-lactate(in) + h(+)(in) => (s)-lactate(out) + h(+)(out)
label: (S)-lactate(in) + H(+)(in) => (S)-lactate(out) + H(+)(out)
label_lc: (s)-lactate(in) + h(+)(in) => (s)-lactate(out) + h(+)(out)