label: 1,4,5,6-tetrahydro-6-oxonicotinate + oxidized 2[4Fe-4S]-[ferredoxin] <=> 6-hydroxynicotinate + reduced 2[4Fe-4S]-[ferredoxin] + 2 H(+)
label_lc: 1,4,5,6-tetrahydro-6-oxonicotinate + oxidized 2[4fe-4s]-[ferredoxin] <=> 6-hydroxynicotinate + reduced 2[4fe-4s]-[ferredoxin] + 2 h(+)