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Information on EC 1.5.3.5 - (S)-6-hydroxynicotine oxidase

for references in articles please use BRENDA:EC1.5.3.5

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IUBMB Comments

A flavoprotein (FAD). The enzyme, which participates in nicotine degradation, is specific for the (S) isomer of 6-hydroxynicotine. The bacterium Arthrobacter nicotinovorans, in which this enzyme was originally discovered, has a different enzyme that catalyses a similar reaction with the less common (R)-isomer (cf. EC 1.5.3.6, (R)-6-hydroxynicotine oxidase).

The enzyme appears in viruses and cellular organisms

Synonyms
nica2, 6-hydroxy-l-nicotine oxidase, 6-hlno, 6hlno, l-6-hydroxynicotine oxidase, (s)-6-hydroxynicotine oxidase, flavoprotein nicotine oxidoreductase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
(S)-6-hydroxynicotine + H2O + O2 = 1-(6-hydroxypyridin-3-yl)-4-(methylamino)butan-1-one + H2O2
show the reaction diagram
(S)-6-hydroxynicotine + O2 = 5-(N-methyl-4,5-dihydro-1H-pyrrol-2-yl)pyridin-2-ol + H2O2
show the reaction diagram
(1a)
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5-(N-methyl-4,5-dihydro-1H-pyrrol-2-yl)pyridin-2-ol + H2O = 1-(6-hydroxypyridin-3-yl)-4-(methylamino)butan-1-one
show the reaction diagram
(1b), spontaneous
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