2.4.1.14: sucrose-phosphate synthase
This is an abbreviated version!
For detailed information about sucrose-phosphate synthase, go to the full flat file.
Word Map on EC 2.4.1.14
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2.4.1.14
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- 2.4.1.14
-
student
-
skill
- starch
-
social
-
anxiety
-
sintering
-
spark
-
post-traumatic
- invertase
-
stiff
-
physician
-
polystyrene
-
traumatic
-
school
-
senile
-
fear
-
emotional
-
session
-
services
-
faculty
-
tangles
-
microstructure
-
satisfaction
-
serrated
-
neurofibrillary
-
interpersonal
-
portray
-
undergraduate
-
colonoscopy
-
learner
-
anti-gad
-
curriculum
-
alloy
-
ceramics
-
raters
-
videotape
-
phobia
-
thematic
- hyperkalemia
-
transcranial
-
cronbach
-
trainees
-
empathy
-
patient-centered
-
self-assessment
-
postgraduate
-
examinees
-
first-year
-
sanitary
-
problem-solving
- biofuel production
- agriculture
- diagnostics
- analysis
Reaction
Synonyms
At5g20280, AtSPS, More, SPS, SPS A, SPS1, SPS11, Sps2, SPS4, SPS6, SPS8, SPSA, SpsB, SPSII, sucrose 6-phosphate synthase, sucrose phosphate synthase, sucrose phosphate synthase 4, sucrose phosphate synthase A, sucrose phosphate synthase B, sucrose phosphate synthetase, sucrose phosphate-uridine diphosphate glucosyltransferase, sucrose-P synthase, sucrose-phosphate synthase B, sucrosephosphate-UDP glucosyltransferase, UDP-glucose-fructose-phosphate glucosyltransferase, UDP-glucose:D-fructose-6-phosphate 2-alpha-D-glucosyltransferase, uridine diphosphoglucose-fructose phosphate glucosyltransferase
ECTree
2.4.1.14 sucrose-phosphate synthaseAdvanced search results
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results (Source Tissue
Source Tissue on EC 2.4.1.14 - sucrose-phosphate synthase
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SOURCE TISSUE 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
SOURCE
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maximal activity of SPS in illumination grown calli appears on the 14th day after the culture is transferred into a new medium. Very low activity in dark grown cells
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although the level of SPS mRNA and protein is lower in embryos than in leaf, enzymatic activity is higher
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the level of SPS transcript is 10fold lower in endosperm than in leaf but the level of SPS protein is comparable and the activity is 2fold higher
high expression level of genes SPS1F and SPS2F in maturing nectaries
isoform SPSA is expressed in the vasculature of all organs
additional information
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ethylene strongly stimulates SPS transcript accumulation, auxin and cold treatment only marginally increase the abundance of SPS mRNA level, while wounding negatively regulates SPS gene expression. SPS transcript level is distinctly increased by constant exposure to white light. Protein level, enzymatic activity of SPS and sucrose synthesis are substantially increased by ethylene and increased exposure to white light conditions as compared to other treatments
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activity of SPS is significantly higher in the upper internodes of high commercial cane sugar clones as compared with low commercial cane sugar clones in both populations, suggesting that this enzyme may have a key role in establishing metabolic and developmental processes necessary for high sugar accumulation during stem growth and maturation
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SPS activity and transcript expression is higher in mature internodes compared with immature internodes in all the studied cultivars
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enzyme activity in young intermodes of different cultivars, overview
determination of sucrose efflux from source leaves
young and mature, determination of sucrose efflux from source leaves
young and mature, isozyme AtSPSA1 is one of the major isoforms expressed in leaves. Determination of sucrose efflux from source leaves. AtSPSC constitutive expression is about 75% lower than that of AtSPSA1
young and mature, isozyme AtSPSC is one of the major isoforms expressed in leaves. Determination of sucrose efflux from source leaves. AtSPSC expression is about 75% lower than that of AtSPSA1
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5 resp. 35% of total leaf enzyme located in bundle sheath cells
high expression level of SPSB, leaves of plants inoculated with Sinorhizobium meliloti
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638626, 638634, 638636, 638637, 638638, 638639, 638640, 638641, 638643, 638645, 638646, 638647, 638649, 638651, 638652, 638657
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significant increases in SPS in the initial phase of dehydration. The next phase of dehydration is characterized by changes in metabolism coinciding with net hexose sugar phosphorylation. This phase is characterized by a further significant increase in sucrose accumulation, with increased rates of net sucrose accumulation and maximum rates of SPS activity measured under both saturating and limiting conditions. SPS protein is also increased
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significant increases in SPS in the initial phase of dehydration. The next phase of dehydration is characterized by changes in metabolism coinciding with net hexose sugar phosphorylation. This phase is characterized by a further significant increase in sucrose accumulation, with increased rates of net sucrose accumulation and maximum rates of SPS activity measured under both saturating and limiting conditions. SPS protein is also increased
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SPS activity increases during slow dehydration, being stimulated by 30% when net CO2 assimilation declines by 40%. SPS activity of stressed leaves kept 4 h in air containing 5% CO2 or 2 d after rewatering is slightly increased or unchanged, respectively. SPS activity of well-hydrated leaves is hardly affected by low CO2. Increased SPS activity is mimicked, in nonstressed leaves, by a rapid dehydration within 4 h and by abscisic acid fed through the transpiration stream. Increase in SPS activity could be linked to ABA-based signalling during a drought stress
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although the level of SPS mRNA and protein is lower in embryos than in leaf, enzymatic activity is higher
high expression level of SPSA, nodules of plants inoculated with Sinorhizobium meliloti
isoform SPSA is expressed in the N2-fixing zone in the nodules
expression only in the vascular system of the siliques, including the funiculi
additional information
AtSPSA1 is most abundant in all tissues tested
additional information
AtSPSA1 is most abundant in all tissues tested
additional information
AtSPSA1 is most abundant in all tissues tested
additional information
AtSPSA1 is most abundant in all tissues tested
additional information
isozyme AtSPSB shows by far the lowest expression of all isozymes in all organs analysed
additional information
isozyme AtSPSB shows by far the lowest expression of all isozymes in all organs analysed
additional information
isozyme AtSPSB shows by far the lowest expression of all isozymes in all organs analysed
additional information
isozyme AtSPSB shows by far the lowest expression of all isozymes in all organs analysed
additional information
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isozyme AtSPSB shows by far the lowest expression of all isozymes in all organs analysed
additional information
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differential pattern of starch degradation and sucrose synthesis during ripening in banana cultivars. SPS activity during postharvest ripening correlates with the differential sucrose metabolism pattern in three cultivars
additional information
tissue specificity and diurnal change in gene expression of the sucrose phosphate synthase gene family, overview. Isozyme comparison: gene SPS1 is preferentially expressed in source tissues, whereas genes SPS2, SPS6, and SPS8 are expressed equally in source and sink tissues, mRNA levels of SPS1, SPS8, and SPS11 are considerably higher in seeds than in shoots and roots
additional information
tissue specificity and diurnal change in gene expression of the sucrose phosphate synthase gene family, overview. Isozyme comparison: gene SPS1 is preferentially expressed in source tissues, whereas genes SPS2, SPS6, and SPS8 are expressed equally in source and sink tissues, mRNA levels of SPS1, SPS8, and SPS11 are considerably higher in seeds than in shoots and roots
additional information
tissue specificity and diurnal change in gene expression of the sucrose phosphate synthase gene family, overview. Isozyme comparison: gene SPS1 is preferentially expressed in source tissues, whereas genes SPS2, SPS6, and SPS8 are expressed equally in source and sink tissues, mRNA levels of SPS1, SPS8, and SPS11 are considerably higher in seeds than in shoots and roots
additional information
tissue specificity and diurnal change in gene expression of the sucrose phosphate synthase gene family, overview. Isozyme comparison: gene SPS1 is preferentially expressed in source tissues, whereas genes SPS2, SPS6, and SPS8 are expressed equally in source and sink tissues, mRNA levels of SPS1, SPS8, and SPS11 are considerably higher in seeds than in shoots and roots
additional information
tissue specificity and diurnal change in gene expression of the sucrose phosphate synthase gene family, overview. Isozyme comparison: gene SPS1 is preferentially expressed in source tissues, whereas genes SPS2, SPS6, and SPS8 are expressed equally in source and sink tissues, mRNA levels of SPS1, SPS8, and SPS11 are considerably higher in seeds than in shoots and roots
additional information
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high sugar cultivars showed increased transcript expression and enzyme activity of SPS compared to low sugar cultivars at all developmental stages
additional information
tissue specific semi-quantitative RT-PCR enzyme expression analysis
