The Enzyme Database

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Accepted name: nitrous-oxide reductase
Reaction: nitrogen + H2O + 2 ferricytochrome c = nitrous oxide + 2 ferrocytochrome c + 2 H+
Other name(s): nitrous oxide reductase; N2O reductase; nitrogen:(acceptor) oxidoreductase (N2O-forming)
Systematic name: nitrogen:cytochrome c oxidoreductase (N2O-forming)
Comments: The reaction is observed only in the direction of nitrous oxide reduction. Contains the mixed-valent dinuclear CuA species at the electron entry site of the enzyme, and the tetranuclear Cu-Z centre in the active site. In Paracoccus pantotrophus, the electron donor is cytochrome c552.
Links to other databases: BRENDA, EAWAG-BBD, EXPASY, Gene, KEGG, MetaCyc, PDB, CAS registry number: 55576-44-8
1.  Coyle, C.L., Zumft, W.G., Kroneck, P.M.H., Körner, H. and Jakob, W. Nitrous oxide reductase from denitrifying Pseudomonas perfectomarina. Purification and properties of a novel multicopper enzyme. Eur. J. Biochem. 153 (1985) 459–467. [DOI] [PMID: 3000778]
2.  Zumft, W.G. and Kroneck, P.M. Respiratory transformation of nitrous oxide (N2O) to dinitrogen by bacteria and archaea. Adv. Microb. Physiol. 52 (2007) 107–227. [DOI] [PMID: 17027372]
3.  Dell'Acqua, S., Pauleta, S.R., Paes de Sousa, P.M., Monzani, E., Casella, L., Moura, J.J. and Moura, I. A new CuZ active form in the catalytic reduction of N2O by nitrous oxide reductase from Pseudomonas nautica. J. Biol. Inorg. Chem. 15 (2010) 967–976. [DOI] [PMID: 20422435]
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