Sucrose synthase 

Sucrose synthase belongs to glycosyltransferases and is a reversible catalyst present in plants, which catalyzes the conversion of sucrose into fructose and UDP-G or ADP-G. Sucrose synthase localizes to the cytoplasm, plasma membrane, cell wall, vacuole and mitochondria of plants. Sucrose synthase regulates sugar metabolism, supports the development of taproots, fruits, seeds and vascular tissues, drives the synthesis of starch, cellulose and callose, and enhances nitrogen fixation capacity. Sucrose synthase mediates signal transduction in plant meristems. Sucrose synthase is associated with plant growth, anaerobic stress tolerance, as well as shoot apical meristem and leaf morphology; overexpression of this enzyme promotes plant growth, increases xylem size, and elevates cellulose and starch contents^[1][2].

Sucrose synthase promotes starch synthesis and accumulation in maize endosperm and potato tubers; overexpression of this enzyme increases starch and glucose contents in potato tubers, while inhibition of its activity reduces starch contents in maize seeds and potato tubers^[1][2].
Sucrose synthase activity promotes cotton fiber development/elongation, and increases cellulose content and xylem cell wall thickness in tobacco^[1].
Sucrose synthase activity enhances the waterlogging stress tolerance of cucumber and barley plants^[1].
Sucrose synthase catalyzes the reversible cleavage/synthesis of sucrose, and its activity preference is pH-dependent; its function requires specific GT-B domain residues, and it is regulated by phosphorylation and trehalose 6-phosphate^[2].
Sucrose synthase located in phloem is essential for callose deposition in Arabidopsis thaliana. Root-expressed sucrose synthase (AtSUS1, AtSUS4) improves submergence tolerance; overexpression of sucrose synthase accelerates plant growth, raises biomass accumulation and triggers early flowering, and induces dichotomous branching via boosting meristematic cell proliferation^[2].
Sucrose synthase overexpression elevates wood cellulose content, cell wall thickness and wood density in Populus species and facilitates total carbon deposition into wood cell walls; heterologous expression of poplar xylem sucrose synthase in tobacco raises cellulose content and xylem cell wall thickness^[2].
Sucrose synthase promotes seed weight gain and starch accumulation in pea embryos; despite normal nodule development and normal nitrogenase protein levels, this enzyme is essential for nitrogen fixation in nodules^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

9030-05-1

Liquid

[Sucrose synthase]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Li J, et al. Sucrose synthase: An enzyme with multiple roles in plant physiology. J Plant Physiol. 2024;303:154352.

  [2]. Stein O, et al. An Overview of Sucrose Synthases in Plants. Front Plant Sci. 2019;10:95. Published 2019 Feb 8.