Sulfite reductase (ferredoxin)

Sulfite reductase (ferredoxin) (, ferredoxin-sulfite reductase) is an enzyme with systematic name hydrogen-sulfide:ferredoxin oxidoreductase. This enzyme catalises the following chemical reaction


 * hydrogen sulfide + 6 oxidized ferredoxin + 3 H2O $$\rightleftharpoons$$ sulfite + 6 reduced ferredoxin + 6 H+

This sulfite reductase is an iron protein.