Sucrose synthase

Figure 5 Model of phosphorus (P) deficiency-induced physiological changes associated with the release of P-mobilizing root exudates in cluster roots of white lupin. Solid lines indicate stimulation and dotted lines inhibition of biochemical reaction sequences or mclaholic pathways in response to P deliciency. For a detailed description see Sec. 4.1. Abbreviations SS = sucrose synthase FK = fructokinase PGM = phosphoglueomutase PEP = phosphoenol pyruvate PE PC = PEP-carboxylase MDH = malate dehydrogenase ME = malic enzyme CS = citrate synthase PDC = pyruvate decarboxylase ALDH — alcohol dehydrogenase E-4-P = erythrosc-4-phosphate DAMP = dihydraxyaceConephos-phate APase = acid phosphatase.

GEIGENBERGER, P., STITT, M., Sucrose synthase catalyses a readily reversible reaction in vivo in developing potato tubers and other plant systems, Planta, 1991,189, 329-339. 

ZRENNER, R., SALANOUBAT, M., SONNEWALD, U., WILLMITZER, L., Evidence of the crucial role of sucrose synthase for sink strength using transgenic potato plants (Solanum tuberosum L.), Plant J., 1995, 7, 97-107. 

Exploring and Broadening the Biocatalytic Properties of Recombinant Sucrose Synthase 1 for the Synthesis of Sucrose Analogues... 

Scheme 2.2.6.1 The reversible reaction of the Leloir glycosyltransferase sucrose synthase (EC 2.4.1.13) 1 sucrose 2 UDP-Gic 3 D-fructose.

Characteristics of Recombinant Sucrose Synthase 1 (SuSy1) Expressed in Saccharomyces cerevisiae... 

Scheme 2.2.6.2 Utilization of recombinant sucrose synthase 1 for carbohydrate engineering.

Fig. 2.2.6.1 Ketoses tested as acceptor substrates of recombinant sucrose synthase 1 expressed in yeast.

Fig. 2.2.6.S Identified acceptor substrates of recombinant sucrose synthase 1 expressed in E. coli. The aldoses are depicted in their furanose conformations based on the conclusion that SuSyl from E. coli accepts D-fructofuranose preferentially.

Sucrose Synthase 1 Mutants Expressed in S. cerevisiae and . coli... 

The UDP-glucose used for cellulose synthesis is generated from sucrose produced during photosynthesis, by the reaction catalyzed by sucrose synthase (named for the reverse reaction) ... 

In one proposed model, cellulose synthase spans the plasma membrane and uses cytosolic UDP-glucose as the precursor for extracellular cellulose synthesis. In another, a membrane-bound form of sucrose synthase forms a complex with cellulose synthase, feeding UDP-glucose from sucrose directly into cell wall synthesis (Fig. 20-32). 

Thummler, F. Verma, D.P.S. (1987). Nodulin 100 of soybean is the subunit of sucrose synthase regulated by the availability of free heme in nodules. Journal of Biological Chemistry 262, 14730-6. 

Yang, N.-S. Russell, D. (1990). Maize sucrose synthase-1 promoter directs phloem cell-specific expression of GUS-gene in transgenic tobacco plants. Proceedings of the National Academy of Sciences (USA) 87, 4144-8. 

Sucrose synthase Wheat Increase of activity Calderon Pontis, 1985... 

Calderon, P. Pontis, H.G. (1985). Increase of sucrose synthase activity in wheat plants after a chilling shock. Plant Science 42,173-6. 

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