KEGG   ENZYME: 2.4.1.234
Entry
EC 2.4.1.234                Enzyme                                 

Name
kaempferol 3-O-galactosyltransferase;
F3GalTase;
UDP-galactose:kaempferol 3-O-beta-D-galactosyltransferase
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
Sysname
UDP-alpha-D-galactose:kaempferol 3-O-beta-D-galactosyltransferase
Reaction(IUBMB)
UDP-alpha-D-galactose + kaempferol = UDP + kaempferol 3-O-beta-D-galactoside [RN:R06808]
Reaction(KEGG)
R06808
Substrate
UDP-alpha-D-galactose [CPD:C00052];
kaempferol [CPD:C05903]
Product
UDP [CPD:C00015];
kaempferol 3-O-beta-D-galactoside [CPD:C12626]
Comment
Acts on the endogenous flavonols kaempferol and quercetin, to a lesser extent on myricetin and fisetin, and weakly on galangin and isorhamnetin. The reaction can occur equally well in both directions.
History
EC 2.4.1.234 created 2004
Pathway
ec00944  Flavone and flavonol biosynthesis
ec01110  Biosynthesis of secondary metabolites
Orthology
K13269  kaempferol 3-O-beta-D-galactosyltransferase
Genes
PVY: 116113033 116144065
PDUL: 117616120 117632458
SLY: 101268117
SOT: 102580477
ITR: 115998400
CSIN: 114285765 114285775 114289234 114306129
Reference
1  [PMID:10567367]
  Authors
Miller KD, Guyon V, Evans JN, Shuttleworth WA, Taylor LP
  Title
Purification, cloning, and heterologous expression of a catalytically efficient flavonol 3-O-galactosyltransferase expressed in the male gametophyte of Petunia hybrida.
  Journal
J Biol Chem 274:34011-9 (1999)
DOI:10.1074/jbc.274.48.34011
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 2.4.1.234
IUBMB Enzyme Nomenclature: 2.4.1.234
ExPASy - ENZYME nomenclature database: 2.4.1.234
BRENDA, the Enzyme Database: 2.4.1.234

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