preferred_name: malonate(in) + Na(+)(in) <=> malonate(out) + Na(+)(out)
preferred_name_lc: malonate(in) + na(+)(in) <=> malonate(out) + na(+)(out)
label: malonate(in) + Na(+)(in) <=> malonate(out) + Na(+)(out)
label_lc: malonate(in) + na(+)(in) <=> malonate(out) + na(+)(out)