The Enzyme Database

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EC 1.6.3.3     
Accepted name: NADH oxidase (H2O2-forming)
Reaction: NADH + H+ + O2 = NAD+ + H2O2
Other name(s): NOX-1; H2O2-forming NADH oxidase
Systematic name: NADH:oxygen oxidoreductase (H2O2-forming)
Comments: A flavoprotein (FAD). The bacterium Streptococcus mutans contains two distinct NADH oxidases, a H2O2-forming enzyme and a H2O-forming enzyme (cf. EC 1.6.3.4, NADH oxidase (H2O-forming)) [1]. The enzymes from the anaerobic archaea Methanocaldococcus jannaschii [6] and Pyrococcus furiosus [3] also produce low amounts of H2O. Unlike EC 1.6.3.1 (NAD(P)H oxidase) it has no activity towards NADPH.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Higuchi, M., Shimada, M., Yamamoto, Y., Hayashi, T., Koga, T. and Kamio, Y. Identification of two distinct NADH oxidases corresponding to H2O2-forming oxidase and H2O-forming oxidase induced in Streptococcus mutans. J. Gen. Microbiol. 139 (1993) 2343–2351. [PMID: 8254304]
2.  Ward, D.E., Donnelly, C.J., Mullendore, M.E., van der Oost, J., de Vos, W.M. and Crane, E.J., 3rd. The NADH oxidase from Pyrococcus furiosus. Implications for the protection of anaerobic hyperthermophiles against oxidative stress. Eur. J. Biochem. 268 (2001) 5816–5823. [PMID: 11722568]
3.  Kengen, S.W., van der Oost, J. and de Vos, W.M. Molecular characterization of H2O2-forming NADH oxidases from Archaeoglobus fulgidus. Eur. J. Biochem. 270 (2003) 2885–2894. [PMID: 12823559]
4.  Yang, X. and Ma, K. Characterization of an exceedingly active NADH oxidase from the anaerobic hyperthermophilic bacterium Thermotoga maritima. J. Bacteriol. 189 (2007) 3312–3317. [PMID: 17293421]
5.  Hirano, J., Miyamoto, K. and Ohta, H. Purification and characterization of thermostable H2O2-forming NADH oxidase from 2-phenylethanol-assimilating Brevibacterium sp. KU1309. Appl. Microbiol. Biotechnol. 80 (2008) 71–78. [PMID: 18521590]
6.  Case, C.L., Rodriguez, J.R. and Mukhopadhyay, B. Characterization of an NADH oxidase of the flavin-dependent disulfide reductase family from Methanocaldococcus jannaschii. Microbiology 155 (2009) 69–79. [PMID: 19118348]
[EC 1.6.3.3 created 2013]
 
 


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