The Enzyme Database

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EC 1.14.13.148     
Accepted name: trimethylamine monooxygenase
Reaction: N,N,N-trimethylamine + NADPH + H+ + O2 = N,N,N-trimethylamine N-oxide + NADP+ + H2O
Other name(s): flavin-containing monooxygenase 3; FMO3; tmm (gene name)
Systematic name: N,N,N-trimethylamine,NADPH:oxygen oxidoreductase (N-oxide-forming)
Comments: A flavoprotein. The bacterial enzyme enables bacteria to use trimethylamine as the sole source of carbon and energy [1,4]. The mammalian enzyme is involved in detoxification of trimethylamine. Mutations in the human enzyme cause the inheritable disease known as trimethylaminuria (fish odor syndrome) [2,3].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Large, P.J., Boulton, C.A. and Crabbe, M.J. The reduced nicotinamide-adenine dinucleotide phosphate- and oxygen-dependent N-oxygenation of trimethylamine by Pseudomonas aminovorans. Biochem. J. 128 (1972) 137P–138P. [PMID: 4404764]
2.  Dolphin, C.T., Riley, J.H., Smith, R.L., Shephard, E.A. and Phillips, I.R. Structural organization of the human flavin-containing monooxygenase 3 gene (FMO3), the favored candidate for fish-odor syndrome, determined directly from genomic DNA. Genomics 46 (1997) 260–267. [DOI] [PMID: 9417913]
3.  Treacy, E.P., Akerman, B.R., Chow, L.M., Youil, R., Bibeau, C., Lin, J., Bruce, A.G., Knight, M., Danks, D.M., Cashman, J.R. and Forrest, S.M. Mutations of the flavin-containing monooxygenase gene (FMO3) cause trimethylaminuria, a defect in detoxication. Hum. Mol. Genet. 7 (1998) 839–845. [DOI] [PMID: 9536088]
4.  Chen, Y., Patel, N.A., Crombie, A., Scrivens, J.H. and Murrell, J.C. Bacterial flavin-containing monooxygenase is trimethylamine monooxygenase. Proc. Natl. Acad. Sci. USA 108 (2011) 17791–17796. [DOI] [PMID: 22006322]
[EC 1.14.13.148 created 2012]
 
 


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