, a phytochromobilin:ferredoxin oxidoreductase
is an enzyme
the chemical reaction
- (3Z)-phytochromobilin + oxidized ferredoxin biliverdin IXalpha + reduced ferredoxin
Thus, the two substrates of this enzyme are (3Z)-phytochromobilin and oxidized ferredoxin, whereas its two products are biliverdin IXalpha and reduced ferredoxin.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with an iron-sulfur protein as acceptor. The systematic name of this enzyme class is (3Z)-phytochromobilin:ferredoxin oxidoreductase. Other names in common use include HY2, PPhiB synthase, and phytochromobilin synthase. This enzyme participates in porphyrin and chlorophyll metabolism.
- Frankenberg N, Mukougawa K, Kohchi T, Lagarias JC "Functional genomic analysis of the HY2 family of ferredoxin-dependent bilin reductases from oxygenic photosynthetic organisms". Plant. Cell. 13 965–78.
- McDowell MT, Lagarias JC "Purification and biochemical properties of phytochromobilin synthase from etiolated oat seedlings". Plant. Physiol. 126 1546–54.
- Terry MJ, Wahleithner JA, Lagarias JC "Biosynthesis of the plant photoreceptor phytochrome". Arch. Biochem. Biophys. 306 1–15.
- The CAS registry number for this enzyme class is .
Gene Ontology (GO) codes