The Enzyme Database

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Accepted name: nicotine 6-hydroxylase
Reaction: (S)-nicotine + acceptor + H2O = (S)-6-hydroxynicotine + reduced acceptor
For diagram of nicotine catabolism by arthrobacter, click here
Other name(s): nicotine oxidase; D-nicotine oxidase; nicotine:(acceptor) 6-oxidoreductase (hydroxylating); L-nicotine oxidase; nicotine dehydrogenase (incorrect)
Systematic name: nicotine:acceptor 6-oxidoreductase (hydroxylating)
Comments: A metalloprotein (FMN). The enzyme can act on both the naturally found (S)-enantiomer and the synthetic (R)-enantiomer of nicotine, with retention of configuration in both cases [4].
Links to other databases: BRENDA, EAWAG-BBD, EXPASY, KEGG, MetaCyc, CAS registry number: 37256-31-8
1.  Behrman, E.J. and Stanier, R.Y. The bacterial oxidation of nicotinic acid. J. Biol. Chem. 228 (1957) 923–945. [PMID: 13475371]
2.  Decker, K. and Bleeg, H. Induction and purification of stereospecific nicotine oxidizing enzymes from Arthrobacter oxidans. Biochim. Biophys. Acta 105 (1965) 313–324. [PMID: 5849820]
3.  Hochstein, L.I. and Dalton, B.P. The purification and properties of nicotine oxidase. Biochim. Biophys. Acta 139 (1967) 56–68. [DOI] [PMID: 4962139]
4.  Hochstein, L.I. and Rittenberg, S.C. The bacterial oxidation of nicotine. II. The isolation of the first oxidative product and its identification as (1)-6-hydroxynicotine. J. Biol. Chem. 234 (1959) 156–160. [PMID: 13610912]
[EC created 1972, modified 2023]

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