The Enzyme Database

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Accepted name: kaempferol 3-O-xylosyltransferase
Reaction: UDP-α-D-xylose + kaempferol = UDP + kaempferol 3-O-β-D-xyloside
For diagram of kaempferol biosynthesis, click here
Other name(s): F3XT; UDP-D-xylose:flavonol 3-O-xylosyltransferase; flavonol 3-O-xylosyltransferase
Systematic name: UDP-α-D-xylose:kaempferol 3-O-D-xylosyltransferase
Comments: The enzyme from the plant Euonymus alatus also catalyses the 3-O-D-xylosylation of other flavonols (e.g. quercetin, isorhamnetin, rhamnetin, myricetin, fisetin) with lower activity.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Ishikura, N. and Yang, Z.Q. UDP-D-xylose: flavonol 3-O-xylosyltransferase from young leaves of Euonymus alatus f. ciliato-dentatus. Z. Naturforsch. C: Biosci. 46 (1991) 1003–1010.
[EC created 2013]

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