ExplorEnz: EC 1.7.2.7

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1.7.2.7

Accepted name:

hydrazine synthase

Reaction:

hydrazine + H₂O + 3 ferricytochrome c = nitric oxide + ammonium + 3 ferrocytochrome c

Glossary:

nitric oxide = nitrogen monoxide = NO

Other name(s):

HZS

Systematic name:

hydrazine:ferricytochrome-c oxidoreductase

Comments:

The enzyme, characterized from anaerobic ammonia oxidizers (anammox bacteria), is one of only a few enzymes that are known to form an N-N bond (other examples include EC 1.7.1.14, nitric oxide reductase [NAD(P)⁺, nitrous oxide-forming] and EC 4.8.1.1, L-piperazate synthase). The enzyme from the bacterium Candidatus Kuenenia stuttgartiensis is a dimer of heterotrimers and contains multiple c-type cytochromes.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc, PDB

References:

1.	Kartal, B., Maalcke, W.J., de Almeida, N.M., Cirpus, I., Gloerich, J., Geerts, W., Op den Camp, H.J., Harhangi, H.R., Janssen-Megens, E.M., Francoijs, K.J., Stunnenberg, H.G., Keltjens, J.T., Jetten, M.S. and Strous, M. Molecular mechanism of anaerobic ammonium oxidation. Nature 479 (2011) 127–130. [DOI] [PMID: 21964329]
2.	Dietl, A., Ferousi, C., Maalcke, W.J., Menzel, A., de Vries, S., Keltjens, J.T., Jetten, M.S., Kartal, B. and Barends, T.R. The inner workings of the hydrazine synthase multiprotein complex. Nature 527 (2015) 394–397. [DOI] [PMID: 26479033]

[EC 1.7.2.7 created 2016, modified 2021]