Reaction catalyzed by assimilatory sulfite reductase (ferredoxin) (1.8.7.1)
hydrogen sulfide
+
6
oxidized ferredoxin [iron-sulfur] cluster
+
3
H2O
=
+
6
reduced ferredoxin [iron-sulfur] cluster
+
6
hydrogen sulfide
+
6 oxidized ferredoxin [iron-sulfur] cluster
+
3 H2O
=
sulfite
+
6 reduced ferredoxin [iron-sulfur] cluster
+
6 H+
