ENZYME entry: EC 2.4.1.202

Accepted Name
2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-D- glucosyltransferase.
Alternative Name(s)
DIMBOA glucosyltransferase.
Reaction catalysed
  • UDP-alpha-D-glucose + 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one <=> UDP + (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl beta-D-glucopyranoside
  • UDP-alpha-D-glucose + 2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one <=> UDP + (2R)-4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl beta-D-glucopyranoside
Comment(s)
  • The enzyme is involved in the detoxification of the benzoxazinoids DIBOA (2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one) and DIMBOA (2,4- dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one) which are stored as the respective non-toxic glucosides in the vacuoles in some plants, most commonly from the family of Poaceae (grasses).
  • Benzoxazinoids are known to exhibit antimicrobial, antifeedant, and antiinsecticidal effects and are involved in the interaction of plants with other plants, insects, or microorganisms.
Cross-references
BRENDA2.4.1.202
EC2PDB2.4.1.202
ExplorEnz2.4.1.202
PRIAM enzyme-specific profiles2.4.1.202
KEGG Ligand Database for Enzyme Nomenclature2.4.1.202
IUBMB Enzyme Nomenclature2.4.1.202
IntEnz2.4.1.202
MEDLINEFind literature relating to 2.4.1.202
MetaCyc2.4.1.202
UniProtKB/Swiss-Prot
Q8W2B7, BX8_MAIZE;  B4G072, BX9_MAIZE;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.4.1.-
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