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Jang IC, Oh SJ, Seo JS, Choi WB, Song SI, Kim CH, Kim YS, Seo HS, Choi YD, Nahm BH, Kim JK: Expression of a bifunctional fusion of the Escherichia coli genes for trehalose-6-phosphate synthase and trehalose-6-phosphate phosphatase in transgenic rice plants increases trehalose accumulation and abiotic stress tolerance without stunting growth. Plant Physiol 2003, 131:516-524.
Purification, characterization, sequencing and molecular cloning of a novel cysteine methyltransferase that regulates trehalose-6-phosphate synthase from Saccharomyces cerevisiae, Shinjinee Sengupta, Shakri Banerjee, Sagar Lahiri, Trina Dutta, Tarun K. Dhar and Anil K. Ghosh; Biochimica et Biophysica Acta – General subjects, 1840 (2014) 1861–1871.
Trehalose serves multiple functions, as a storage carbohydrate that serves as a fuel for flight and as a cryopro-tectant, protecting insects from damage during overwintering in cold climes. The hemolymph level of trehalose plays an important role in regulating carbohydrate intake and maintaining nutritional home-ostasis. Levels of trehalose in the hemolymph are maintained by a complex interaction of nutrient intake and metabolism. Trehalose is synthesized in the fat body from two glycolytic intermediates, glucose-1-phosphate and glucose-6-phosphate. The reactions are catalyzed by trehalose-6-phosphate synthase.
metallireducens may protect themselves from desiccation by making trehalose from glucose storage polymers via maltooligose in three steps catalyzed by an alpha-amylase domain protein (Gmet_3469 = GSU2361), maltooligosyltrehalose synthase (Gmet_3468 = GSU2360, 35% identical to the Rhizobium leguminosarum enzyme ), and maltooligosyltrehalose trehalohydrolase (Gmet_3467 = GSU2358, 44% identical to the Arthrobacter strain Q36 enzyme ). G. sulfurreducens, P. propionicus and G. lovleyi may also make trehalose from glucose-6-phosphate by the sequential action of trehalose-6-phosphate synthase.