EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
2.4.1.236 | more |
enzyme catalyzes the production of bitter flavanone-glucosides |
Citrus maxima |
? |
- |
? |
2.4.1.236 | more |
not: flavonoid 5-O-glucosides or aglycones, naringenin, hesperetin, quercetin, UDP-glucose, UDP-galactose, UDP-glucoronic acid |
Citrus maxima |
? |
- |
? |
2.4.1.236 | more |
the enzyyme specifically catalyzes rhamnosylation of flavanone-7-O-glucose and flavone-7-O-glucose substrates at position 2 of the glucose moiety |
Citrus maxima |
? |
- |
? |
2.4.1.236 | more |
the enzyme also catalyzes the rhamnosylation of diosmetin 7-O-glucoside at position 2 of the glucose moiety to give neodiosmin, but Cm1,2RhaT is specific for flavonoid-7-O-glucosides and utilizes no flavonoid-3-O-glucosides |
Citrus maxima |
? |
- |
? |
2.4.1.236 | more |
flavanone-7-O-glucosides are catalysed by 1,2-rhamnosyltransferase to form bitter flavanone-7-O-neohesperidosides, such as naringin, neohsperidin, neoeriocitrin and poncirin |
Citrus sinensis |
? |
- |
? |
2.4.1.236 | more |
Cm1,2RhaT has glycosyl transfer activity toward UDP-xylose as well as UDP-rhamnose, it is a branch-forming rhamnosyltransferase, substrate specificity of the recombinant enzyme, overview. No activity with quercetin-3-O-glucoside |
Citrus maxima |
? |
- |
? |
2.4.1.236 | more |
flavonoid-7-O-glucosides are the preferred substrate. The enzyme Cit1,2RhaT converts flavonoid-7-O-glucosides into bitter-tasting flavonoid-7-O-neohesperidoside |
Citrus reticulata x Citrus trifoliata |
? |
- |
- |
2.4.1.236 | UDP-beta-L-rhamnose + a flavanone 7-O-beta-D-glucoside |
- |
Citrus maxima |
UDP + a flavanone 7-O-[alpha-L-rhamnosyl-(1->2)-beta-D-glucoside] |
- |
? |
2.4.1.236 | UDP-beta-L-rhamnose + naringenin-7-O-glucoside |
- |
Citrus maxima |
UDP + naringenin 7-O-[alpha-L-rhamnosyl-(1->2)-beta-D-glucoside] |
- |
? |
2.4.1.236 | UDP-L-rhamnose + a flavanone 7-O-glucoside |
glucosylated flavanone is further rhamnosylated by a rhamnosyltransferase using UDP-rhamnose |
Citrus x paradisi |
UDP + a flavanone 7-O-[beta-L-rhamnosyl-(1-2)-beta-D-glucoside] |
- |
? |