label: 4 reduced [4Fe-4S]-[ferredoxin] + a carboxylate + sulfite + 6 H(+) => an aliphatic sulfonate + 4 oxidized [4Fe-4S]-[ferredoxin] + 2 H2O
label_lc: 4 reduced [4fe-4s]-[ferredoxin] + a carboxylate + sulfite + 6 h(+) => an aliphatic sulfonate + 4 oxidized [4fe-4s]-[ferredoxin] + 2 h2o