Results 231 to 240 of about 369,643 (266)
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Thiamine derivatives bind messenger RNAs directly to regulate bacterial gene expression
Nature, 2002Although proteins fulfil most of the requirements that biology has for structural and functional components such as enzymes and receptors, RNA can also serve in these capacities. For example, RNA has sufficient structural plasticity to form ribozyme and receptor elements that exhibit considerable enzymatic power and binding specificity. Moreover, these
Wade, Winkler +2 more
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Regulation of bacterial gene expression in response to oxidative stress
1994Publisher Summary This chapter presents the approaches used to study the regulation of oxidative defense genes in Escherichia coli and Salmonella typhimurium . These general approaches should be useful in examining the response to oxidative stress in other organisms and in further elucidating the response in E. coli and S. typhimurium .
G, Storz, M B, Toledano
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Regulation of Bacterial Gene Expression
1989The total properties of any bacterium result from an interplay between its genome and its environment. The bacterium Escherichia coli carries approximately 3000 genes, but this total repertoire describes its potential properties and, in reality, only a small subset of this genetic information is expressed at any given moment. A primary influence of the
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DNA Supercoiling as a Regulator of Bacterial Gene Expression
1987Studies of gene expression have advanced to a stage at which we can ask quite detailed questions about the factors that influence transcription and the ways in which these factors interact with each other. Such factors include not only the specific proteins that bind to regulatory sites on DNA, but also more subtle aspects of DNA structure, such as ...
Martin Gellert, Rolf Menzel
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Bacterial Aminoacyl-tRNA Synthetases: Genes and Regulation of Expression
2014Aminoacyl-tRNA synthetases (AARS) form a class of essential enzymes whose main role is to ligate amino acids to tRNAs. This chapter reviews what is known about the AARS genes, their chromosomal localization, their organization, and the regulation of their expression.
Harald Putzer +2 more
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Oxygen intervention in the regulation of gene expression: the photosynthetic bacterial paradigm
Cellular and Molecular Life Sciences (CMLS), 2004The means by which oxygen intervenes in gene expression has been examined in considerable detail in the metabolically versatile bacterium Rhodobacter sphaeroides. Three regulatory systems are now known in this organism, which are used singly and in combination to modulate genes in response to changing oxygen availability.
J H, Zeilstra-Ryalls, S, Kaplan
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Bacterial lipases from Pseudomonas: Regulation of gene expression and mechanisms of secretion
Biochimie, 2000Lipases from Pseudomonas bacteria are widely used for a variety of biotechnological applications. Overexpression in heterologous hosts like Escherichia coli failed to produce enzymatically active lipase prompting to study the molecular mechanisms underlying the regulation of lipase gene expression and secretion. The prototype lipase from P.
F, Rosenau, K, Jaeger
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Search for Alternative RNA Secondary Structures Regulating Expression of Bacterial Genes
Molecular Biology, 2003Expression of many bacterial genes is regulated by formation of alternative secondary RNA structure within the leader mRNA sequence. Our algorithm designed to search for these structures (basing on analysis of one nucleotide sequence) was applied to analyze operons of amino acid biosynthesis in alpha- and gamma-proteobacteria.
E. V. Lyubetskaya +3 more
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Improved bacterial hosts for regulated expression of genes from λ, pL plasmid vectors
Gene, 1993The construction and use of a set of Escherichia coli strains with defective lambda prophages that facilitate expression of genes cloned in lambda pL-plasmid vectors is described. These bacteria allow high and regulated expression of such genes, whereas a kanamycin-resistance marker (KmR) on the prophage allows easy identification and genetic transfer ...
T A, Patterson +3 more
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[Progress in expression regulation of bacterial lipase genes--A review].
Wei sheng wu xue bao = Acta microbiologica Sinica, 2016Microbial lipases are major sources of commercial ones, which have been extensively used in a wide variety of industrial fields, such as foods, beverages, lipids, detergents, feeds, textiles, leathers, advanced materials, fine chemicals, medicines, cosmetics, papermaking, pollution treatment, and bioenergy.
Daiming, Zha, Yunjun, Yan
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