2-Hydroxy-1,4-benzoxazin-3-one monooxygenase

Class of enzymes
2-Hydroxy-1,4-benzoxazin-3-one monooxygenase
Identifiers
EC no.1.14.13.140
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BRENDABRENDA entry
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2-Hydroxy-1,4-benzoxazin-3-one monooxygenase (EC 1.14.13.140, BX5 (gene), CYP71C3 (gene)) is an enzyme with systematic name 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one,NAD(P)H:oxygen oxidoreductase (N-hydroxylating).[1][2] This enzyme catalyses the following chemical reaction

2-hydroxy-2H-1,4-benzoxazin-3(4H)-one + NAD(P)H + H+ + O2 {\displaystyle \rightleftharpoons } 2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one + NAD(P)+ + H2O

2-Hydroxy-1,4-benzoxazin-3-one monooxygenase is involved in the biosynthesis of protective and allelopathic benzoxazinoids in some plants.

References

  1. ^ Bailey BA, Larson RL (March 1991). "Maize microsomal benzoxazinone N-monooxygenase". Plant Physiology. 95 (3): 792–6. doi:10.1104/pp.95.3.792. PMC 1077607. PMID 16668055.
  2. ^ Glawischnig E, Grün S, Frey M, Gierl A (March 1999). "Cytochrome P450 monooxygenases of DIBOA biosynthesis: specificity and conservation among grasses". Phytochemistry. 50 (6): 925–30. doi:10.1016/s0031-9422(98)00318-5. PMID 10385992.

External links

  • 2-hydroxy-1,4-benzoxazin-3-one+monooxygenase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
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Oxidoreductases: dioxygenases, including steroid hydroxylases (EC 1.14)
1.14.11: 2-oxoglutarate1.14.13: NADH or NADPH1.14.14: reduced flavin or flavoprotein1.14.15: reduced iron–sulfur protein1.14.16: reduced pteridine (BH4 dependent)1.14.17: reduced ascorbate1.14.18-19: other1.14.99 - miscellaneous
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