Protochlorophyllide reductase

In enzymology, a protochlorophyllide reductase is an enzyme that catalyzes the chemical reaction


 * chlorophyllide a + NADP+ $$\rightleftharpoons$$ protochlorophyllide + NADPH + H+

Thus, the two substrates of this enzyme are chlorophyllide a and NADP+, whereas its 3 products are protochlorophyllide, NADPH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is chlorophyllide-a:NADP+ 7,8-oxidoreductase. Other names in common use include NADPH2-protochlorophyllide oxidoreductase, NADPH-protochlorophyllide oxidoreductase, NADPH-protochlorophyllide reductase, protochlorophyllide oxidoreductase, and protochlorophyllide photooxidoreductase. This enzyme participates in porphyrin and chlorophyll metabolism.