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Your query returned 3 entries. Printable version
EC | 2.1.1.241 | ||||||||||||
Accepted name: | 2,4,7-trihydroxy-1,4-benzoxazin-3-one-glucoside 7-O-methyltransferase | ||||||||||||
Reaction: | S-adenosyl-L-methionine + (2R)-4,7-dihydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside = S-adenosyl-L-homocysteine + (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside | ||||||||||||
For diagram of benzoxazinone biosynthesis, click here | |||||||||||||
Glossary: | (2R)-4,7-dihydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside = TRIMBOA β-D-glucoside (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside = DIMBOA β-D-glucoside |
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Other name(s): | BX7 (gene name); OMT BX7 | ||||||||||||
Systematic name: | S-adenosyl-L-methionine:(2R)-4,7-dihydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside 7-O-methyltransferase | ||||||||||||
Comments: | The enzyme is involved in the biosynthesis of the protective and allelophatic benzoxazinoid DIMBOA [(2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin] in some plants, most commonly from the family of Poaceae (grasses). | ||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||||||
References: |
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EC | 2.4.1.202 | ||||||||||||
Accepted name: | 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-D-glucosyltransferase | ||||||||||||
Reaction: | (1) UDP-α-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 β-D-glucopyranoside (2) UDP-α-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 β-D-glucopyranoside |
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For diagram of benzoxazinone biosynthesis, click here | |||||||||||||
Glossary: | 2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one = DIBOA 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one = DIMBOA (2R)-4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside = DIBOA β-D-glucoside (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside = DIMBOA β-D-glucoside |
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Other name(s): | uridine diphosphoglucose-2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-glucosyltransferase; BX8; BX9; benzoxazinoid glucosyltransferase; DIMBOA glucosyltransferase | ||||||||||||
Systematic name: | UDP-α-D-glucose:2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-β-D-glucosyltransferase | ||||||||||||
Comments: | 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. | ||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 122544-56-3 | ||||||||||||
References: |
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EC | 3.2.1.182 | ||||||||||||
Accepted name: | 4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl glucoside β-D-glucosidase | ||||||||||||
Reaction: | (1) (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside + H2O =
2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one + D-glucose (2) (2R)-4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside + H2O = 2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one + D-glucose |
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Glossary: | DIMBOA glucoside = (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside DIBOA glucoside = (2R)-4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside |
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Other name(s): | DIMBOAGlc hydrolase; DIMBOA glucosidase | ||||||||||||
Systematic name: | (2R)-4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl β-D-glucopyranoside β-D-glucosidase | ||||||||||||
Comments: | The enzyme from Triticum aestivum (wheat) has a higher affinity for DIMBOA glucoside than DIBOA glucoside. With Secale cereale (rye) the preference is reversed. | ||||||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||||||||
References: |
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