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2.4.1.210: limonoid glucosyltransferase

This is an abbreviated version!
For detailed information about limonoid glucosyltransferase, go to the full flat file.

Word Map on EC 2.4.1.210

Reaction

UDP-glucose
+
limonin
+
H2O
=
glucosyl-limonin
+
UDP

Synonyms

CitLGT-1, CitLGT-2, CrLGT, cuGT, LGT, LGTase, limonoid glucosyltransferase, limonoid GTase, limonoid UDP glucosyltransferase, limonoid UDP-glucosyltransferase, SLLGT, UDP-D-glucose:limonoid glucosyltransferase, UDP-glucose:limonoid glucosyltransferase

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.210 limonoid glucosyltransferase

Inhibitors

Inhibitors on EC 2.4.1.210 - limonoid glucosyltransferase

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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1-ethyl-3-(3-dimethylaminopropyl) carbodiimide
-
modifies tryptophan residues
3-nitro-L-tyrosine ethylester
-
modifies tryptophan residues
Ca2+
-
10 mM, 13% inhibition
citraconic anhydride
diethyl dicarbonate
-
1 mM, 76% inhibition
diethyldicarbonate
-
modifies histidine residues and inactivates the enzyme, pseudo first order kinetics. When the histidine modification is reversed by hydroxylamine treatment, 79% of the activity is restored
EDTA
-
1 mM, complete inactivation
Mg2+
-
10 mM, 22% inhibition
N-bromosuccinimide
-
modifies tryptophan residues and inactivates the enzyme, loss of LGTase activity by NBS treatment is partially protected by pre-incubating the enzyme with excess limonin
additional information
-
inactivation of the enzyme following modification of carboxyl and imidazole moieties is a consequence of a loss in substrate binding and catalysis in the glucosyltransfer reaction. No inhibition by serine modifiying diisopropyl fluorophosphate and cysteine modifying 4-chloromercuribenzoate and iodoacetamide
-