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