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Induction of the Escherichia coli yijE gene expression by cystine. 2015

Kaneyoshi Yamamoto, and Gen Nonaka, and Takahiro Ozawa, and Kazuhiro Takumi, and Akira Ishihama
a Department of Frontier Bioscience and Research Center for Micro-Nano Technology , Hosei University , Koganei , Japan.

Cystine is formed from two molecules of the cysteine under oxidized conditions, but is reversibly converted to cysteine by reduction. Growth of Escherichia coli is retarded in the presence of excess cystine. Transcriptome analysis showed 11 up-regulated and 26 down-regulated genes upon exposure to excess cystine. The reporter assay confirmed regulation by cystine of the expression of one up-regulated membrane gene, yijE, and two down-regulated membrane genes, yhdT and yihN. In order to identify the as yet unidentified gene encoding cystine efflux transporter, the putative cystine efflux candidate, yijE gene, was over-expressed. Expression of the yijE gene suppressed the slow growth of E. coli in the presence of high concentration of extracellular cystine. In good agreement, the knock-out of yijE gene increased the sensibility to cystine. These observations altogether imply that the yijE gene is involved in response to cystine in E. coli.

UI MeSH Term Description Entries
D008565 Membrane Proteins Proteins which are found in membranes including cellular and intracellular membranes. They consist of two types, peripheral and integral proteins. They include most membrane-associated enzymes, antigenic proteins, transport proteins, and drug, hormone, and lectin receptors. Cell Membrane Protein,Cell Membrane Proteins,Cell Surface Protein,Cell Surface Proteins,Integral Membrane Proteins,Membrane-Associated Protein,Surface Protein,Surface Proteins,Integral Membrane Protein,Membrane Protein,Membrane-Associated Proteins,Membrane Associated Protein,Membrane Associated Proteins,Membrane Protein, Cell,Membrane Protein, Integral,Membrane Proteins, Integral,Protein, Cell Membrane,Protein, Cell Surface,Protein, Integral Membrane,Protein, Membrane,Protein, Membrane-Associated,Protein, Surface,Proteins, Cell Membrane,Proteins, Cell Surface,Proteins, Integral Membrane,Proteins, Membrane,Proteins, Membrane-Associated,Proteins, Surface,Surface Protein, Cell
D003553 Cystine A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine. Copper Cystinate,L-Cystine,L Cystine
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D015533 Transcriptional Activation Processes that stimulate the GENETIC TRANSCRIPTION of a gene or set of genes. Gene Activation,Genetic Induction,Transactivation,Induction, Genetic,Trans-Activation, Genetic,Transcription Activation,Activation, Gene,Activation, Transcription,Activation, Transcriptional,Genetic Trans-Activation,Trans Activation, Genetic
D055786 Gene Knockout Techniques Techniques to alter a gene sequence that result in an inactivated gene, or one in which the expression can be inactivated at a chosen time during development to study the loss of function of a gene. Gene Knock-Out Techniques,Gene Knock Out,Gene Knock Out Techniques,Gene Knockout,Gene Knock Outs,Gene Knock-Out Technique,Gene Knockout Technique,Gene Knockouts,Knock Out, Gene,Knock Outs, Gene,Knock-Out Technique, Gene,Knock-Out Techniques, Gene,Knockout Technique, Gene,Knockout Techniques, Gene,Knockout, Gene,Knockouts, Gene,Out, Gene Knock,Outs, Gene Knock,Technique, Gene Knock-Out,Technique, Gene Knockout,Techniques, Gene Knock-Out,Techniques, Gene Knockout
D017930 Genes, Reporter Genes whose expression is easily detectable and therefore used to study promoter activity at many positions in a target genome. In recombinant DNA technology, these genes may be attached to a promoter region of interest. Reporter Genes,Gene, Reporter,Reporter Gene
D020869 Gene Expression Profiling The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell. Gene Expression Analysis,Gene Expression Pattern Analysis,Transcript Expression Analysis,Transcriptome Profiling,Transcriptomics,mRNA Differential Display,Gene Expression Monitoring,Transcriptome Analysis,Analyses, Gene Expression,Analyses, Transcript Expression,Analyses, Transcriptome,Analysis, Gene Expression,Analysis, Transcript Expression,Analysis, Transcriptome,Differential Display, mRNA,Differential Displays, mRNA,Expression Analyses, Gene,Expression Analysis, Gene,Gene Expression Analyses,Gene Expression Monitorings,Gene Expression Profilings,Monitoring, Gene Expression,Monitorings, Gene Expression,Profiling, Gene Expression,Profiling, Transcriptome,Profilings, Gene Expression,Profilings, Transcriptome,Transcript Expression Analyses,Transcriptome Analyses,Transcriptome Profilings,mRNA Differential Displays
D029968 Escherichia coli Proteins Proteins obtained from ESCHERICHIA COLI. E coli Proteins

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