EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
2.4.1.240 | more |
involved in the biosynthesis of flavonol triglucosides |
Pisum sativum |
? |
- |
? |
2.4.1.240 | more |
one of three glucosyl transferases involved in the biosynthesis of flavonol-3-triglucosides |
Pisum sativum |
? |
- |
? |
2.4.1.240 | more |
glucosylation of kaempferol and quercetin in the 3-position to form the 3-O-triglucoside, reaction proceeds from the aglycone via the mono- and diglucoside intermediates, this reaction sequence is probably associated with three distinct enzyme activities |
Pisum sativum |
? |
- |
? |
2.4.1.240 | more |
no glucosylation of pelargonidin, naringenin, naringin and p-coumaric acid by the three flavonol:glucosyltransferases, not: ADP-glucose, GDP-glucose, kaempferol, kaempferol monoglucoside, quercetin-3-rutinoside |
Pisum sativum |
? |
- |
? |
2.4.1.240 | TDP-glucose + a flavonol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
3fold lower rate than with UDP-glucose as glucosyl donor |
Pisum sativum |
TDP + a flavonol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
? |
2.4.1.240 | UDP-glucose + a flavonol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
highly specific enzyme, specific for flavonol-3-O-diglucosides, 3fold higher rate than with TDP-glucose as glucosyl donor |
Pisum sativum |
UDP + a flavonol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
? |
2.4.1.240 | UDP-glucose + kaempferol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
Pisum sativum |
UDP + kaempferol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
? |
2.4.1.240 | UDP-glucose + kaempferol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
best substrate |
Pisum sativum |
UDP + kaempferol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
? |
2.4.1.240 | UDP-glucose + myricetin 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
32% of the activity with kaempferol 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
Pisum sativum |
UDP + myricetin 3-O-beta-D-glucosyl-(1-2)-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
? |
2.4.1.240 | UDP-glucose + quercetin 3-O-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
Pisum sativum |
UDP + quercetin 3-O-beta-D-glucosyl-(1-2)-beta-D-glucosyl-(1-2)-beta-D-glucoside |
- |
? |