title: [Cloning, expression and functional analysis of the genes in TPS/TPP trehalose synthetic pathway of Meiothermus ruber].
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.
authors.affiliation: Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Department of Microbiology, Nankai University, Tianjin 300071, China.
authors.forename: Yueming
authors.initials: Y
authors.lastname: Zhu
authors.forename: Yichen
authors.initials: Y
authors.lastname: Tang
authors.forename: Hengyi
authors.initials: H
authors.lastname: Xu
authors.forename: Juan
authors.initials: J
authors.lastname: Zhang
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Wei
authors.forename: Laijun
authors.initials: L
authors.lastname: Xing
authors.forename: Mingchun
authors.initials: M
authors.lastname: Li
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics* / Q000378:metabolism; D003001:Cloning, Molecular; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism; D005964:Glucosyltransferases / Q000235:genetics* / Q000378:metabolism; D010744:Phosphoric Monoester Hydrolases / Q000235:genetics* / Q000378:metabolism; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D013824:Thermus / Q000201:enzymology / Q000235:genetics*; D014199:Trehalose / Q000096:biosynthesis*
chemical_list: D001426:Bacterial Proteins; D011993:Recombinant Fusion Proteins; D014199:Trehalose; D005964:Glucosyltransferases; C023180:trehalose-6-phosphate synthase; C023178:trehalose-phosphatase; D010744:Phosphoric Monoester Hydrolases