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Literature summary extracted from

  • Li, J.; Baroja-Fernandez, E.; Bahaji, A.; Munoz, F.J.; Ovecka, M.; Montero, M.; Sesma, M.T.; Alonso-Casajus, N.; Almagro, G.; Sanchez-Lopez, A.M.; Hidalgo, M.; Zamarbide, M.; Pozueta-Romero, J.
    Enhancing sucrose synthase activity results in increased levels of starch and ADP-glucose in maize (Zea mays L.) seed endosperms (2013), Plant Cell Physiol., 54, 282-294.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.4.1.13 gene SUS4, recombinant ectopic expression of the enzyme in Zea mays seed endosperm. Transgenic developing seeds exhibit a significant increase in SuSy activity, the transgenic seeds accumulate 10-15% more starch at the mature stage and contain a higher amylose/amylopectin balance than wild-type maize seeds, while no significant changes are detected in the transgenic seeds in the content of soluble sugars, and in activities of starch metabolism-related enzymes when compared with wild-type seeds, overview Solanum tuberosum

Protein Variants

EC Number Protein Variants Comment Organism
2.4.1.13 additional information recombinant ectopic expression of the enzyme from Solanum tuberosum in Zea mays seed endosperm leads to transgenic developing seeds that exhibit a significant increase in SuSy activity. The transgenic seeds accumulate 10-15% more starch at the mature stage and contain a higher amylose/amylopectin balance than wild-type maize seeds, while no significant changes are detected in the transgenic seeds in the content of soluble sugars, and in activities of starch metabolism-related enzymes when compared with wild-type seeds, phenotype, overview. Enhancement of the enzyme activity does not affect the redox status of AGP Zea mays

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.4.1.13 cytosol
-
 Zea mays 5829
-
2.4.1.13 cytosol
-
 Solanum tuberosum 5829
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.4.1.13 ADP-glucose + D-fructose Zea mays
-
 ADP + sucrose
-
 r
2.4.1.13 ADP-glucose + D-fructose Solanum tuberosum
-
 ADP + sucrose
-
 r
2.4.1.13 NDP-glucose + D-fructose Zea mays
-
 NDP + sucrose
-
 r
2.4.1.13 NDP-glucose + D-fructose Solanum tuberosum
-
 NDP + sucrose
-
 r
2.4.1.13 UDP-glucose + D-fructose Zea mays
-
 UDP + sucrose
-
 r
2.4.1.13 UDP-glucose + D-fructose Solanum tuberosum
-
 UDP + sucrose
-
 r

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.13 Solanum tuberosum Q7Y078 gene StSUS4
-
2.4.1.13 Zea mays
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.13 endosperm
-
 Zea mays
-
2.4.1.13 seed
-
 Zea mays
-
2.4.1.13 tuber
-
 Solanum tuberosum
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.13 ADP-glucose + D-fructose
-
 Zea mays ADP + sucrose
-
 r
2.4.1.13 ADP-glucose + D-fructose
-
 Solanum tuberosum ADP + sucrose
-
 r
2.4.1.13 NDP-glucose + D-fructose
-
 Zea mays NDP + sucrose
-
 r
2.4.1.13 NDP-glucose + D-fructose
-
 Solanum tuberosum NDP + sucrose
-
 r
2.4.1.13 UDP-glucose + D-fructose
-
 Zea mays UDP + sucrose
-
 r
2.4.1.13 UDP-glucose + D-fructose
-
 Solanum tuberosum UDP + sucrose
-
 r

Synonyms

EC Number Synonyms Comment Organism
2.4.1.13 StSUS4
-
 Zea mays
2.4.1.13 StSUS4
-
 Solanum tuberosum
2.4.1.13 SuSy
-
 Zea mays
2.4.1.13 SuSy
-
 Solanum tuberosum

General Information

EC Number General Information Comment Organism
2.4.1.13 physiological function enhancing sucrose synthase activity results in increased levels of starch and ADP-glucose in maize seed endosperms Zea mays
2.4.1.13 physiological function sucrose synthase is a major determinant of sink strength that highly controls the channeling of incoming sucrose into starch and cell wall polysaccharides, the enzyme is involved in production of starch and ADP-glucose Solanum tuberosum