2,4-Dihydroxy-1,4-benzoxazin-3-one-glucoside dioxygenase

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2,4-dihydroxy-1,4-benzoxazin-3-one-glucoside dioxygenase
Identifiers
EC number 1.14.20.2
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum

2,4-dihydroxy-1,4-benzoxazin-3-one-glucoside dioxygenase (EC 1.14.20.2, BX6 (gene), DIBOA-Glc dioxygenase) is an enzyme with systematic name (2R)-4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl beta-D-glucopyranoside:oxygen oxidoreductase (7-hydroxylating).[1] This enzyme catalyses the following chemical reaction

(2R)-4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl beta-D-glucopyranoside + 2-oxoglutarate + O2 (2R)-4,7-dihydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl beta-D-glucopyranoside + succinate + CO2 + H2O

The enzyme is involved in the biosynthesis of protective and allelophatic benzoxazinoids in some plants.

References[edit]

  1. ^ Jonczyk, R.; Schmidt, H.; Osterrieder, A.; Fiesselmann, A.; Schullehner, K.; Haslbeck, M.; Sicker, D.; Hofmann, D.; Yalpani, N.; Simmons, C.; Frey, M.; Gierl, A. (2008). "Elucidation of the final reactions of DIMBOA-glucoside biosynthesis in maize: characterization of Bx6 and Bx7". Plant Physiol. 146 (3): 1053–1063. doi:10.1104/pp.107.111237. PMC 2259038Freely accessible. PMID 18192444. 

External links[edit]