| EC |
1.7.2.4 |
| 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, KEGG, MetaCyc, PDB, CAS registry number: 55576-44-8 |
| References: |
| 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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| [EC 1.7.2.4 created 1989 as EC 1.7.99.6, modified 1999, transferred 2011 to EC 1.7.2.4] |
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