label: oxidized 2[4Fe-4S]-[ferredoxin] + L-homocysteine + H2O => L-aspartate 4-semialdehyde + reduced 2[4Fe-4S]-[ferredoxin] + hydrogen sulfide + 3 H(+)
label_lc: oxidized 2[4fe-4s]-[ferredoxin] + l-homocysteine + h2o => l-aspartate 4-semialdehyde + reduced 2[4fe-4s]-[ferredoxin] + hydrogen sulfide + 3 h(+)