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Information on EC 2.4.1.13 - sucrose synthase
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2.4.1.13 sucrose synthaseIUBMB Comments
Although UDP is generally considered to be the preferred nucleoside diphosphate for sucrose synthase, numerous studies have shown that ADP serves as an effective acceptor molecule to produce ADP-glucose [3-9]. Sucrose synthase has a dual role in producing both UDP-glucose (necessary for cell wall and glycoprotein biosynthesis) and ADP-glucose (necessary for starch biosynthesis) .
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Word Map
- 2.4.1.13
- invertase
- starch
- maize
-
sink
- cultivar
-
pyrophosphorylase
- grain
- endosperm
- crop
- seedling
- cellulose
- potato
- cotton
- tuber
- drought
- phloem
-
sucrose-phosphate
- fructokinase
- kernel
- hexoses
- hexokinase
- agpase
-
3.2.1.26
-
anthesis
- callose
- hirsutum
- sugarcane
-
photosynthate
- panicle
- fructans
-
granule-bound
-
gossypium
-
grain-filling
-
photoassimilate
- adpglucose
- spikelet
-
source-sink
-
boll
- saccharum
- synthesis
- stachyose
-
amyloplasts
- taproot
- agriculture
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
Synonyms
sucrose synthase, sucrose synthetase, susy1, mtsucs1, rsus3, sucrose synthase 1, psnsusy2, susy2, sucrose synthase 2, sucrose synthase 3, 
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
AcSuSy
CsSUS3
glucosyltransferase, uridine diphosphoglucose-fructose
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-
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SH1
SS1
StSUS4
sucrose synthase
sucrose synthase 1
sucrose synthase 3
sucrose synthetase
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sucrose-UDP glucosyltransferase
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-
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sucrose-uridine diphosphate glucosyltransferase
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-
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Sus
SUS1
SUS2
SUS3
sus4
SUS5
SUS6
SuSy
SuSy1
SuSy2
SuSyAc
SuSyDa
SuSyMr
SuSyNe
UDP-glucose-fructose glucosyltransferase
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UDP-glucose:D-fructose 2-alpha-D-glucosyltransferase
uridine diphosphoglucose-fructose glucosyltransferase
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SH1
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two isoforms of sucrose synthase(SH1 and SUS1) are encoded by the Shrunken1 (Sh1) and Sucrose synthase1 (Sus1)
Sus
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SUS1
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two isoforms of sucrose synthase(SH1 and SUS1) are encoded by the Shrunken1 (Sh1) and Sucrose synthase1 (Sus1)
SuSy
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UDP-glucose:D-fructose 2-alpha-D-glucosyltransferase
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-
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-
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
NDP-alpha-D-glucose + D-fructose = NDP + sucrose
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-
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hexosyl group transfer
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-
-
-
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PATHWAY SOURCE
PATHWAYS
BRENDA
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SYSTEMATIC NAME
IUBMB Comments
NDP-glucose:D-fructose 2-alpha-D-glucosyltransferase
Although UDP is generally considered to be the preferred nucleoside diphosphate for sucrose synthase, numerous studies have shown that ADP serves as an effective acceptor molecule to produce ADP-glucose [3-9]. Sucrose synthase has a dual role in producing both UDP-glucose (necessary for cell wall and glycoprotein biosynthesis) and ADP-glucose (necessary for starch biosynthesis) [10].
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CAS REGISTRY NUMBER
COMMENTARY
9030-05-1
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
sucrose + UDP
UDP-glucose + D-fructose
sucrose loaded into the phloem of a poplar leaf is used directly by sucrose synthase associated with various beta-glucan synthases in the stem for UDPglucose formation in the sink tissue, thereby conserving the high energy bond between glucose and fructose
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?
UDP-alpha-D-galactose + D-fructose
UDP + sucrose
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23% of the activity with UDP-alpha-D-glucose
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?
UDP-alpha-D-glucose + 1-deoxy-1-fluoro-fructose
?
the recombinant enzyme expressed in Escherichia coli shows 175% of the activity with D-fructose, 100% for the enzyme expressed in Sacchromyces cerevisiae
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-
?
UDP-alpha-D-glucose + D-fructose 6-phosphate
UDP + sucrose 6-phosphate
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sucrose synthase plays an important role in sugar metabolism during sucrose accumulation in the coffee fruit
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?
UDP-alpha-D-glucose + D-glucose
?
the recombinant enzyme expressed in Sacchromyces cerevisiae shows 2% of the activity with D-fructose, no activity with the enzyme expressed in Escherichia coli
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-
?
UDP-alpha-D-glucose + D-lyxose
?
the recombinant enzyme expressed in Escherichia coli shows 150% of the activity with D-fructose, 48% for the enzyme expressed in Sacchromyces cerevisiae
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?
UDP-alpha-D-glucose + D-mannose
?
the recombinant enzyme expressed in Escherichia coli shows 75% of the activity with D-fructose, 40% for the enzyme expressed in Sacchromyces cerevisiae
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-
?
UDP-alpha-D-glucose + D-ribose
?
the recombinant enzyme expressed in Sacchromyces cerevisiae shows 7% of the activity with D-fructose, no activity with the enzyme expressed in Escherichia coli
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-
?
UDP-alpha-D-glucose + D-ribulose
?
the recombinant enzyme expressed in Escherichia coli shows 24% of the activity with D-fructose, no activity with enzyme expressed in Sacchromyces cerevisiae
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-
?
UDP-alpha-D-glucose + D-tagatose
?
the recombinant enzyme expressed in Escherichia coli shows 43% of the activity with D-fructose, no activity with the enzyme expressed in Sacchromyces cerevisiae
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-
?
UDP-alpha-D-glucose + D-talose
?
the recombinant enzyme expressed in Sacchromyces cerevisiae shows 117% of the activity with D-fructose, no activity with the enzyme expressed in Escherichia coli
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?
UDP-alpha-D-glucose + L-arabinose
?
the recombinant enzyme expressed in Escherichia coli shows 490% of the activity with D-fructose, 36% for the enzyme expressed in Sacchromyces cerevisiae
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?
UDP-alpha-D-glucose + L-galactose
?
the recombinant enzyme expressed in Sacchromyces cerevisiae shows 2% of the activity with D-fructose, no activity with the enzyme expressed in Escherichia coli
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?
UDP-alpha-D-glucose + L-glucose
?
the recombinant enzyme expressed in Escherichia coli shows 34% of the activity with D-fructose, no activity with the enzyme expressed in Sacchromyces cerevisiae
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?
UDP-alpha-D-glucose + L-mannose
?
the recombinant enzyme expressed in Escherichia coli shows 59% of the activity with D-fructose, 8% for the enzyme expressed in Sacchromyces cerevisiae
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?
UDP-alpha-D-glucose + L-rhamnose
?
the recombinant enzyme expressed in Escherichia coli shows 52% of the activity with D-fructose, no activity with the enzyme expressed in Sacchromyces cerevisiae
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?
UDP-alpha-D-glucose + L-sorbose
?
the recombinant enzyme expressed in Escherichia coli shows 96% of the activity with D-fructose, 55% for the enzyme expressed in Sacchromyces cerevisiae
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?
UDP-alpha-D-glucuronic acid + D-fructose
?
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32% of the activity with UDP-alpha-D-glucose
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?
UDP-alpha-D-xylose + D-fructose
?
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39% of the activity with UDP-alpha-D-glucose
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?
UDP-N-acetyl-alpha-D-galactosamine + D-fructose
UDP + beta-D-fructofuranosyl 2-(acetylamino)-2-deoxy-alpha-D-galactopyranoside
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23% of the activity with UDP-alpha-D-glucose
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?
UDP-N-acetyl-alpha-D-glucosamine + D-fructose
UDP + 2-acetamido-2-deoxy-D-glucopyranosyl-beta-D-fructofuranoside
ADP + sucrose
ADP-alpha-D-glucose + D-fructose
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r
ADP + sucrose
ADP-glucose + D-fructose
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sucrose synthase catalyzes the de novo production of ADPglucose linked to starch biosynthesis in heterotrophic tissues of plants
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r
ADP + sucrose
ADP-glucose + D-fructose
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sucrose synthase catalyzes the de novo production of ADPglucose linked to starch biosynthesis in heterotrophic tissues of plants
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r
ADP + sucrose
ADP-glucose + D-fructose
ADP-glucose produced by SuSy is linked to starch biosynthesis. SuSy exerts a strong control on the starch biosynthetic process and controls the production of ADP-glucose accumulating in source leaves
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?