preferred_name: succinate(in) + 3 Na(+)(in) => succinate(out) + 3 Na(+)(out)
preferred_name_lc: succinate(in) + 3 na(+)(in) => succinate(out) + 3 na(+)(out)
label: succinate(in) + 3 Na(+)(in) => succinate(out) + 3 Na(+)(out)
label_lc: succinate(in) + 3 na(+)(in) => succinate(out) + 3 na(+)(out)