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  • Title: [Cloning, expression and functional analysis of the genes in TPS/TPP trehalose synthetic pathway of Meiothermus ruber].
    Author: Zhu Y, Tang Y, Xu H, Zhang J, Wei D, Xing L, Li M.
    Journal: Sheng Wu Gong Cheng Xue Bao; 2009 Mar; 25(3):399-405. PubMed ID: 19621581.
    Abstract:
    By constructing the genomic DNA library of Meiothermus ruber CBS-01, the genes of trehalose phosphate synthase (TPS) and trehalose phosphate phosphatase (TPP) involved in trehalose synthesis were cloned. The genes were cloned into the plasmid pET21a, and expressed in Escherichia coli Rosetta gami (DE3). The activities of these two purified enzymes were confirmed by thin layer chromatography (TLC). Meanwhile, we tested the cellular compatible solutes of M. ruber CBS-01 under different environmental pressure, and found that under hyperosmotic pressure, this strain can accumulate trhalose-6-phosphate, but not trehalose. These results can give more insight to future research in the roles of TPS/TPP and TreS pathway.
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