label: oxidized [4Fe-4S]/[3Fe-4S]-[ferredoxin] + NADH => reduced [4Fe-4S]/[3Fe-4S]-[ferredoxin] + NAD(+) + H(+)
label_lc: oxidized [4fe-4s]/[3fe-4s]-[ferredoxin] + nadh => reduced [4fe-4s]/[3fe-4s]-[ferredoxin] + nad(+) + h(+)