The Enzyme Database

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Accepted name: coenzyme F420H2 oxidase
Reaction: 2 reduced coenzyme F420 + O2 = 2 oxidized coenzyme F420 + 2 H2O
For diagram of coenzyme F420 biosynthesis, click here
Glossary: oxidized coenzyme F420 = N-(N-{O-[5-(8-hydroxy-2,4-dioxo-2,3,4,10-tetrahydropyrimido[4,5-b]quinolin-10-yl)-5-deoxy-L-ribityl-1-phospho]-(S)-lactyl}-γ-L-glutamyl)-L-glutamate
Other name(s): FprA
Systematic name: reduced coenzyme F420:oxygen oxidoreductase
Comments: The enzyme contains FMN and a binuclear iron center. The enzyme from the archaeon Methanothermobacter marburgensis is Si-face specific with respect to C-5 of coenzyme F420 [2].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Seedorf, H., Dreisbach, A., Hedderich, R., Shima, S. and Thauer, R.K. F420H2 oxidase (FprA) from Methanobrevibacter arboriphilus, a coenzyme F420-dependent enzyme involved in O2 detoxification. Arch. Microbiol. 182 (2004) 126–137. [DOI] [PMID: 15340796]
2.  Seedorf, H., Kahnt, J., Pierik, A.J. and Thauer, R.K. Si-face stereospecificity at C5 of coenzyme F420 for F420H2 oxidase from methanogenic Archaea as determined by mass spectrometry. FEBS J. 272 (2005) 5337–5342. [DOI] [PMID: 16218963]
3.  Seedorf, H., Hagemeier, C.H., Shima, S., Thauer, R.K., Warkentin, E. and Ermler, U. Structure of coenzyme F420H2 oxidase (FprA), a di-iron flavoprotein from methanogenic Archaea catalyzing the reduction of O2 to H2O. FEBS J. 274 (2007) 1588–1599. [DOI] [PMID: 17480207]
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