Flavonol-3-O-glycoside xylosyltransferase

From Wikipedia, the free encyclopedia

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]

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.

[edit] References

• IUBMB entry for 2.4.2.35
• BRENDA references for 2.4.2.35 (Recommended.)
• PubMed references for 2.4.2.35
• PubMed Central references for 2.4.2.35
• Google Scholar references for 2.4.2.35
• 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. Natursforsch. C: Biosci. 37: 587–599. 
• Ishikura N and 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. 

[edit] External links

The CAS registry number for this enzyme class is 83380-90-9.

• IUBMB entry for 2.4.2.35

• KEGG entry for 2.4.2.35

• BRENDA entry for 2.4.2.35

• NiceZyme view of 2.4.2.35

• EC2PDB: PDB structures for 2.4.2.35

• PRIAM entry for 2.4.2.35

• PUMA2 entry for 2.4.2.35

• IntEnz: Integrated Enzyme entry for 2.4.2.35

• MetaCyc entry for 2.4.2.35

• Atomic-resolution structures of enzymes belonging to this class

[edit] Gene Ontology (GO) codes

• EGO entry for GO code 0047285: flavonol-3-O-glycoside xylosyltransferase

• AMIGO entry for GO code 0047285: flavonol-3-O-glycoside xylosyltransferase