|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions → Composite Reactions → Electron-Transfer-Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 22.214.171.124
In Pathway: nitrate reduction X (periplasmic, dissimilatory)
Note that this reaction equation differs from the official Enzyme Commission reaction equations for this EC number.
Reaction Locations: inner membrane (sensu Gram-negative Bacteria)
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.
Mass balance status: Balanced.
Enzyme Commission Primary Name: nitrate reductase
Enzyme Commission Synonyms: respiratory nitrate reductase, nitrate reductase (acceptor), nitrite:(acceptor) oxidoreductase
Enzyme Commission Summary:
This is the first reaction in the anaerobic pathway of denitrification. The nitrogen cycle on earth consists of dinitrogen fixation to NH4, oxidation to nitrate and denitrification to dinitrogen.
Rosso73: Rosso JP, Forget P, Pichinoty F (1973). "[Bacterial nitrate reductases. Solubilization, purification and properties of the enzyme A of Micrococcus halodenitrificans (author's transl)]." Biochim Biophys Acta 321(2);443-55. PMID: 4762405
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