EC |
2.4.1.191 |
Accepted name: |
luteolin-7-O-diglucuronide 4′-O-glucuronosyltransferase |
Reaction: |
UDP-α-D-glucuronate + luteolin 7-O-[β-D-glucuronosyl-(1→2)-β-D-glucuronide] = UDP + luteolin 7-O-[β-D-glucuronosyl-(1→2)-β-D-glucuronide]-4′-O-β-D-glucuronide |
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For diagram of luteolin derivatives biosynthesis, click here |
Other name(s): |
uridine diphosphoglucuronate-luteolin 7-O-diglucuronide glucuronosyltransferase; UDP-glucuronate:luteolin 7-O-diglucuronide-glucuronosyltransferase; UDPglucuronate:luteolin 7-O-diglucuronide-4′-O-glucuronosyl-transferase; LDT; UDP-glucuronate:luteolin-7-O-β-D-diglucuronide 4′-O-glucuronosyltransferase |
Systematic name: |
UDP-α-D-glucuronate:luteolin-7-O-β-D-diglucuronide 4′-O-glucuronosyltransferase (configuration-inverting) |
Comments: |
The enzyme participates in the biosynthesis of luteolin triglucuronide, the major flavone found in the photosynthetically-active mesophyll of the primary leaves of Secale cereale (rye). |
Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 115490-50-1 |
References: |
1. |
Schulz, M. and Weissenböck, G. 3 specific UDP-glucuronate-flavone-glucuronosyl-transferases from primary leaves of Secale cereale. Phytochemistry 27 (1988) 1261–1267. |
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[EC 2.4.1.191 created 1992, modified 2011] |
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