KEGG   ENZYME: 2.4.1.239Help
Entry
EC 2.4.1.239                Enzyme                                 

Name
flavonol-3-O-glucoside glucosyltransferase;
UDP-glucose:flavonol-3-O-glucoside 2''-O-beta-D-glucosyltransferase
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
UDP-glucose:flavonol-3-O-beta-D-glucoside 2''-O-beta-D-glucosyltransferase
Reaction(IUBMB)
UDP-glucose + a flavonol 3-O-beta-D-glucoside = UDP + a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside [RN:R07339]
Reaction(KEGG)
Substrate
UDP-glucose [CPD:C00029];
flavonol 3-O-beta-D-glucoside [CPD:C03946]
Product
UDP [CPD:C00015];
flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside [CPD:C15581]
Comment
One of three specific glucosyltransferases in pea (Pisum sativum) that successively add a beta-D-glucosyl group first to O-3 of kaempferol, and then to O-2 of the previously added glucosyl group giving the 3-O-sophoroside and then the 3-O-sophorotrioside (see also EC 2.4.1.91, flavonol 3-O-glucosyltransferase and EC 2.4.1.240, flavonol-3-O-glycoside glucosyltransferase). TDP-glucose can replace UDP-glucose as the glucose donor but the reaction proceeds more slowly.
History
EC 2.4.1.239 created 2004
Pathway
ec00944  Flavone and flavonol biosynthesis
Orthology
K22794  flavonol-3-O-glucoside/galactoside glucosyltransferase
Genes
CIT: 102622417
CIC: CICLE_v10017784mg
TCC: 18596764
GRA: 105767875 105772155 105772168 105773680 105773681 105774497
GHI: 107887946 107917231 107937274 107960223 107960224 107961071
DZI: 111308706
EGR: 104424969 104424971
GMX: 100780270 100787444(FG3) 100791363 100807403 100807938 100808439 100813643 100820538
PVU: PHAVU_005G093300g PHAVU_005G0935000 PHAVU_005G0935001 PHAVU_005G093600g PHAVU_006G050000g PHAVU_011G115700g PHAVU_011G128700g PHAVU_011G136400g PHAVU_011G136700g PHAVU_011G138500g PHAVU_011G138600g
VRA: 106755140 106778549 106778553 106778555 106778578 106779200 106780203
CAM: 101494200(UGT79B27) 101505166 101505479(UGT79B24) 101505816 101506461(UGT79B23) 101506787(UGT79B26) 101515694(UGT79B21)
LJA: Lj0g3v0121779.1(Lj0g3v0121779.1) Lj0g3v0140079.1(Lj0g3v0140079.1) Lj0g3v0171009.1(Lj0g3v0171009.1) Lj0g3v0185919.1(Lj0g3v0185919.1) Lj0g3v0185929.1(Lj0g3v0185929.1) Lj0g3v0326519.1(Lj0g3v0326519.1) Lj0g3v0326529.1(Lj0g3v0326529.1) Lj0g3v0361719.1(Lj0g3v0361719.1) Lj0g3v0361729.1(Lj0g3v0361729.1) Lj0g3v0361739.1(Lj0g3v0361739.1) Lj3g3v1528060.1(Lj3g3v1528060.1) Lj3g3v1528070.1(Lj3g3v1528070.1) Lj3g3v1528100.1(Lj3g3v1528100.1)
PPER: 18779862
PMUM: 103343492
PAVI: 110770403
ZJU: 107410158
RCU: 8259168
JCU: 105650147
HBR: 110654844
NTA: 107800382
SIND: 105175588
 » show all
Taxonomy
Reference
1  [PMID:6462109]
  Authors
Jourdan PS, Mansell RL.
  Title
Isolation and partial characterization of three glucosyl transferases involved in the biosynthesis of flavonol triglucosides in Pisum sativum L.
  Journal
Arch Biochem Biophys 213:434-43 (1982)
DOI:10.1016/0003-9861(82)90569-0
Other DBs
ExplorEnz - The Enzyme Database: 2.4.1.239
IUBMB Enzyme Nomenclature: 2.4.1.239
ExPASy - ENZYME nomenclature database: 2.4.1.239
BRENDA, the Enzyme Database: 2.4.1.239

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