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