Reaction catalyzed by nitrite reductase (cytochrome; ammonia-forming) (1.7.2.2)
+
6
+
6
=
H2S
+
3
H2O
+
6
sulfite
+
6 ferrocytochrome c
+
6 H+
=
H2S
+
3 H2O
+
6 ferricytochrome c
