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

From HandWiki
Short description: Class of enzymes
2-Hydroxy-1,4-benzoxazin-3-one monooxygenase
Identifiers
EC number1.14.13.140
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

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 [math]\displaystyle{ \rightleftharpoons }[/math] 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. "Maize microsomal benzoxazinone N-monooxygenase". Plant Physiology 95 (3): 792–6. March 1991. doi:10.1104/pp.95.3.792. PMID 16668055. 
  2. "Cytochrome P450 monooxygenases of DIBOA biosynthesis: specificity and conservation among grasses". Phytochemistry 50 (6): 925–30. March 1999. doi:10.1016/s0031-9422(98)00318-5. PMID 10385992. 

External links