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Literature summary for 2.4.1.13 extracted from

  • Angeles-Nunez, J.G.; Tiessen, A.
    Arabidopsis sucrose synthase 2 and 3 modulate metabolic homeostasis and direct carbon towards starch synthesis in developing seeds (2010), Planta, 232, 701-718.
    View publication on PubMed

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana Q00917 isoform Sus2
-
Arabidopsis thaliana Q9M111 isoform Sus3
-

Source Tissue

Source Tissue Comment Organism Textmining
seed
-
Arabidopsis thaliana
-

General Information

General Information Comment Organism
physiological function isoform Sus2 knockout mutant shows 30-50% less sucrose synthase activity than wild-type and therefore accumulates 40% more sucrose and 50% less fructose at 15 days after flowering. Mutation does not affect the hexose phosphate pool, but leads to 30-70% less starch in embryo and seed coat. Lipid content is are 55% higher at 9-15 days after flowering. Final seed size and composition are unaltered due to an earlier cessation of growth, thus giving rise to an apparent silent phenotype of mature mutant seeds Arabidopsis thaliana
physiological function isoform Sus3 knockout mutant shows 30-50% less sucrose synthase activity than wild-type and therefore accumulates 40% more sucrose and 50% less fructose at 15 days after flowering. Mutation does not affect the hexose phosphate pool, but leads to 30-70% less starch in embryo and seed coat. Lipid content is are 55% higher at 9-15 days after flowering. Final seed size and composition are unaltered due to an earlier cessation of growth, thus giving rise to an apparent silent phenotype of mature mutant seeds Arabidopsis thaliana