Flavonol-3-O-glycoside xylosyltransferase

In enzymology, a flavonol-3-O-glycoside xylosyltransferase (EC 2.4.2.35) is an enzyme that catalyzes the chemical reaction

UDP-D-xylose + a flavonol 3-O-glycoside UDP + a flavonol 3-[-D-xylosyl-(1->2)-beta-D-glycoside]
flavonol-3-O-glycoside xylosyltransferase
Identifiers
EC number2.4.2.35
CAS number83380-90-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

Thus, the two substrates of this enzyme are UDP-D-xylose and flavonol 3-O-glycoside, whereas its two products are UDP and [[flavonol 3-[-D-xylosyl-(1->2)-beta-D-glycoside]]].

This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is UDP-D-xylose:flavonol-3-O-glycoside 2-O-beta-D-xylosyltransferase.

References

    • Wiermann R (1982). "Formation of flavonol 3-O-diglycosides and flavonol 3-O-triglycosides by enzyme extracts from anthers of Tulipa cv apeldoorn - characterization and activity of 3 different O-glycosyltransferases during anther development". Z. Naturforsch. C. 37: 587–599.
    • Ishikura N, Yang ZQ (1991). "UDP-D-xylose: flavonol 3-O-xylosyltransferase from young leaves of Euonymus alatus f. ciliato-dentatus". Z. Naturforsch. C: Biosci. 46: 1003–1010.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.