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The chemical reactions and pathways involving various organic and inorganic nitrogenous compounds; includes nitrogen fixation, nitrification, denitrification, assimilatory/dissimilatory nitrate reduction and the interconversion of nitrogenous organic matter and ammonium. The metabolic process by which ammonia (NH3) is oxidized to nitrite (NO2) in the presence of oxygen; enzymatic reactions convert ammonia to hydrazine, and hydrazine to nitrite. The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation. The chemical reactions and pathways involving small molecules, any monomeric molecule of small relative molecular mass. The chemical reactions and pathways by which ammonia or ammonium is converted to molecular nitrogen or another nitrogen compound, with accompanying loss of electrons. The oxidation of ammonium (NH4) to nitrogen (N2) in the absence of oxygen, using nitrite (NO2) as the electron acceptor. It is suggested that hydroxylamine and ammonium are combined to yield hydrazine, which is subsequently oxidized to N2. The metabolic process by which ammonia (NH3) is oxidized to nitrite (NO2) in the presence of oxygen. Hydroxylamine is produced enzymatically, and, in the presence of pyruvate, forms pyruvic oxime in a spontaneous, non-enzymatic reaction; pyruvic oxime is then converted to nitrite.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: ammonia oxidation
Acc: GO:0019329
Aspect: Biological Process
Desc: The chemical reactions and pathways by which ammonia or ammonium is converted to molecular nitrogen or another nitrogen compound, with accompanying loss of electrons.
Proteins in PDR annotated with:
   This term: 1 [Search]
   Term or descendants: 1 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0019329 - ammonia oxidation (interactive image map)
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