Ferredoxin-nitrate reductase
From Wikipedia, the free encyclopedia
In enzymology, a ferredoxin---nitrate reductase (EC 1.7.7.2) is an enzyme that catalyzes the chemical reaction
- nitrite + H2O + 2 oxidized ferredoxin nitrate + 2 reduced ferredoxin + 2 H+
The 3 substrates of this enzyme are nitrite, H2O, and oxidized ferredoxin, whereas its 3 products are nitrate, reduced ferredoxin, and H+.
This enzyme belongs to the family of oxidoreductases, specifically those acting on other nitrogenous compounds as donors with an iron-sulfur protein as acceptor. The systematic name of this enzyme class is nitrite:ferredoxin oxidoreductase. Other names in common use include assimilatory nitrate reductase, nitrate (ferredoxin) reductase, and assimilatory ferredoxin-nitrate reductase. This enzyme participates in nitrogen metabolism. It has 4 cofactors: iron, Sulfur, Molybdenum, and Iron-sulfur.
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[edit] Structural studies
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1PFD.
[edit] References
- IUBMB entry for 1.7.7.2
- BRENDA references for 1.7.7.2 (Recommended.)
- PubMed references for 1.7.7.2
- PubMed Central references for 1.7.7.2
- Google Scholar references for 1.7.7.2
- Mikami B and Ida S (1984). "Purification and properties of ferrodoxin-nitrate reductase from the cyanobacterium Plectonema borganum". Biochim. Biophys. Acta 791: 294–304.
[edit] External links
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- The CAS registry number for this enzyme class is 60382-69-6.