label: 6 oxidized [2Fe-2S]-[ferredoxin] + NH4(+) + 2 H2O <=> nitrite + 6 reduced [2Fe-2S]-[ferredoxin] + 8 H(+)
label_lc: 6 oxidized [2fe-2s]-[ferredoxin] + nh4(+) + 2 h2o <=> nitrite + 6 reduced [2fe-2s]-[ferredoxin] + 8 h(+)