Protochlorophyllide reductase

From Wikipedia, the free encyclopedia

In enzymology, a protochlorophyllide reductase (EC 1.3.1.33) is an enzyme that catalyzes the chemical reaction

chlorophyllide a + NADP⁺ 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.

[edit] References

• IUBMB entry for 1.3.1.33
• BRENDA references for 1.3.1.33 (Recommended.)
• PubMed references for 1.3.1.33
• PubMed Central references for 1.3.1.33
• Google Scholar references for 1.3.1.33
• Apel K, Santel HJ, Redlinger TE, Falk H (1980). "The protochlorophyllide holochrome of barley (Hordeum vulgare L.) Isolation and characterization of the NADPH:protochlorophyllide oxidoreductase". Eur. J. Biochem. 111: 251–8. PMID 7439188. 
• Griffiths WT (1978). "Reconstitution of chlorophyllide formation by isolated etioplast membranes". Biochem. J. 174: 681–92. PMID 31865. 

[edit] External links

The CAS registry number for this enzyme class is 68518-04-7.

• IUBMB entry for 1.3.1.33

• KEGG entry for 1.3.1.33

• BRENDA entry for 1.3.1.33

• NiceZyme view of 1.3.1.33

• EC2PDB: PDB structures for 1.3.1.33

• PRIAM entry for 1.3.1.33

• PUMA2 entry for 1.3.1.33

• IntEnz: Integrated Enzyme entry for 1.3.1.33

• MetaCyc entry for 1.3.1.33

• Atomic-resolution structures of enzymes belonging to this class

[edit] Gene Ontology (GO) codes

• EGO entry for GO code 0016630: protochlorophyllide reductase

• AMIGO entry for GO code 0016630: protochlorophyllide reductase