EC |
2.4.1.253 |
Accepted name: |
baicalein 7-O-glucuronosyltransferase |
Reaction: |
UDP-D-glucuronate + baicalein = UDP + baicalin |
Glossary: |
baicalin = 5,6,7-trihydroxyflavone-7-O-β-D-glucuronate = 5,6-dihydroxy-4-oxo-2-phenyl-4H-chromen-7-yl β-D-glucupyranosiduronic acid
baicalein = 5,6,7-trihydroxyflavone = 5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one
wogonin = 5,7-dihydroxy-8-methoxyflavone = 5,7-dihydroxy-8-methoxy-2-phenyl-4H-chromen-4-one
scutellarein = 4,5,6,7-tetrahydroxyflavone-7-O-β-D-glucoronate = 5,6,7-trihydroxy-2-(4-hydroxyphenyl)chromen-4-one |
Other name(s): |
UBGAT |
Systematic name: |
UDP-D-glucuronate:5,6,7-trihydroxyflavone 7-O-glucuronosyltransferase |
Comments: |
The enzyme is specific for UDP-D-glucuronate as a sugar donor and flavones with substitution ortho- to the 7-OH group such as baicalein (6-OH), scutellarein (6-OH) and wogonin (8-OMe). |
References: |
1. |
Nagashima, S., Hirotani, M. and Yoshikawa, T. Purification and characterization of UDP-glucuronate: baicalein 7-O-glucuronosyltransferase from Scutellaria baicalensis Georgi. cell suspension cultures. Phytochemistry 53 (2000) 533–538. [PMID: 10724177] |
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[EC 2.4.1.253 created 2011] |
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