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2.4.1.13: sucrose synthase

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

Word Map on EC 2.4.1.13

Reaction

NDP-alpha-D-glucose
+
D-fructose
=
NDP
 +
sucrose

Synonyms

AcSuSy, CaSUS1, CaSUS2, CsSUS3, glucosyltransferase, uridine diphosphoglucose-fructose, GmSuSy, LjSUS3, Msus1, MtSucS1, mtSUS, PsnSuSy2, RSuS3, SBSS1, SBSS2, SH1, SS1, SS2, StSUS4, sucrose synthase, sucrose synthase 1, sucrose synthase 2, sucrose synthase 3, sucrose synthase 4, sucrose synthetase, sucrose-UDP glucosyltransferase, sucrose-uridine diphosphate glucosyltransferase, Sus, SUS-SH1, SUS1, SUS2, SUS3, sus4, SUS5, SUS6, SuSy, SuSy1, SuSy2, SuSy3, SuSy4, SuSy5, SuSy6, SuSyAc, SuSyDa, SuSyI, SuSyII, SuSyMr, SuSyNe, UDP-D-Glc:D-Fru 2-alpha-glucosyltransferase, UDP-glucose-fructose glucosyltransferase, UDP-glucose:D-fructose 2-alpha-D-glucosyltransferase, uridine diphosphoglucose-fructose glucosyltransferase

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.13 sucrose synthase

Activating Compound

Activating Compound on EC 2.4.1.13 - sucrose synthase

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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
abscisic acid
-
as well as treatments like spikelet thinning, leaf cutting increase enzyme expression and enzyme activity during rice grain filling
actin
-
activity of SuSy2 in breakdown direction is stimulated by 60%
allantoin
-
activation, sucrose synthesis
Ca2+
-
only for sucrose synthesis
fructose 2,6-bisphosphate
-
stimulates SuSy2 in presence of actin
Mn2+
-
2-4fold activation of sucrose synthesis, inhibition of cleavage
nitrate
-
50% activation at 3-5 mM, exogenous nitrate at 14.2 mM absorbed in the form of KNO3 and Ca(NO3)2 during 10-20 days exponentially activates the enzyme in the roots by 22-100% as compared with plants grown on nitrogen-free medium. Under low light, nitrate can not activate sucrose synthase
NO3
-
20.8% increase of activity at 2 mM
spermine
-
0.07 mM spermine treatment significantly increases the enzyme activity at 15 and 35 days after post anthesis
sucrose
-
exogenous, as well as treatments like spikelet thinning, leaf cutting increase enzyme expression and enzyme activity during rice grain filling
UDP-D-xylose
-
activation of epicotyl and cotyledon isozymes
additional information
-