Sulfite reductase (NADPH) Wikipedia
Sulfite reductase (NADPH) (EC 18.104.22.168, sulfite (reduced nicotinamide adenine dinucleotide phosphate) reductase, NADPH-sulfite reductase, NADPH-dependent sulfite reductase, H2S-NADP oxidoreductase, sulfite reductase (NADPH2)) is an enzyme with systematic name hydrogen-sulfide:NADP+ oxidoreductase. This enzyme catalises the following chemical reaction
hydrogen sulfide + 3 NADP+
+ 3 H2
sulfite + 3 NADPH + 3 H+
Sulfite reductase is an iron flavoprotein (FAD and FMN).