Senecionine N-oxygenase

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In enzymology, a senecionine N-oxygenase (EC 1.14.13.101) is an enzyme that catalyzes the chemical reaction

senecionine + NADPH + H⁺ + O₂ $\rightleftharpoons$ senecionine N-oxide + NADP⁺ + H₂O

The 4 substrates of this enzyme are senecionine, NADPH, H⁺, and O₂, whereas its 3 products are senecionine N-oxide, NADP⁺, and H₂O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derived from O2 with NADH or NADPH as one donor, and incorporation of one atom o oxygen into the other donor. The systematic name of this enzyme class is senecionine,NADPH:oxygen oxidoreductase (N-oxide-forming). Other names in common use include senecionine monooxygenase (N-oxide-forming), and SNO.

[edit] References

IUBMB entry for 1.14.13.101
BRENDA references for 1.14.13.101 (Recommended.)
PubMed references for 1.14.13.101
PubMed Central references for 1.14.13.101
Google Scholar references for 1.14.13.101
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Naumann C, Hartmann T, Ober D (2002). "Evolutionary recruitment of a flavin-dependent monooxygenase for the detoxification of host plant-acquired pyrrolizidine alkaloids in the alkaloid-defended arctiid moth Tyria jacobaeae". Proc. Natl. Acad. Sci. U. S. A. 99: 6085–90. doi:10.1073/pnas.082674499. PMID 11972041.