Information on EC 2.4.1.104 - o-dihydroxycoumarin 7-O-glucosyltransferase

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EC Tree 2 Transferases 2.4 Glycosyltransferases 2.4.1 Hexosyltransferases 2.4.1.104 o-dihydroxycoumarin 7-O-glucosyltransferase

IUBMB Comments

Converts the aglycone daphetin into daphnin and, more slowly, esculetin into cichoriin, umbelliferone into skimmin, hydrangetin into hydrangin and scopoletin into scopolin.

The expected taxonomic range for this enzyme is: Nicotiana tabacum

2.4.1.104
cyclodextrins
starch
glucanotransferase
glycosyltransferase
cyclization
macerans
circulans
2.4.1.19
transglycosylation
paenibacillus
cyclomaltodextrin
beta-cyclodextrins
alkalophilic
gamma-cyclodextrins
alpha-cyclodextrin
disproportionation
beta-cd
maltodextrins
gamma-cds
acarbose
amylose
maltogenic
thermosulfurigenes
alpha-cd
maltohexaose
thermoanaerobacter
alpha-amylases
thermoanaerobacterium
firmus
maltooligosaccharides
starch-degrading
starch-binding
alpha-1,4-glucans

Reaction Schemes

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UDP-glucose

7,8-dihydroxycoumarin

UDP

daphnin

Synonyms
cgtase, more

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SYNONYM

ORGANISM

UNIPROT

COMMENTARY

LITERATURE

CGTase

glucosyltransferase, uridine diphosphoglucose-o-dihydroxycoumarin 7-O-

UDP-glucose:o-dihydroxycoumarin glucosyltransferase

UDPglucose:7,8-dihydroxycoumarin 7-O-beta-D-glucosyltransferase

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REACTION

REACTION DIAGRAM

COMMENTARY

ORGANISM

UNIPROT

LITERATURE

UDP-glucose + 7,8-dihydroxycoumarin = UDP + daphnin

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REACTION TYPE

ORGANISM

UNIPROT

COMMENTARY

LITERATURE

hexosyl group transfer

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PATHWAY SOURCE

PATHWAYS

MetaCyc

cichoriin interconversion, daphnin interconversion

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SYSTEMATIC NAME

IUBMB Comments

UDP-glucose:7,8-dihydroxycoumarin 7-O-beta-D-glucosyltransferase

Converts the aglycone daphetin into daphnin and, more slowly, esculetin into cichoriin, umbelliferone into skimmin, hydrangetin into hydrangin and scopoletin into scopolin.

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CAS REGISTRY NUMBER

COMMENTARY

74114-37-7

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SUBSTRATE

PRODUCT

REACTION DIAGRAM

ORGANISM

UNIPROT

LITERATURE

COMMENTARY

Reversibility
r=reversible
ir=irreversible
?=not specified

UDP-alpha-D-glucose + kaempferol

UDP + kaempferol 7-O-beta-D-glucoside