Download or read book Single nucleotide Resolution View of Gene Expression in Escherichia Coli K 12 Under Various Physiological Conditions written by James P. Creecy and published by . This book was released on 2015 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulation of Gene Expression in Escherichia coli written by E. C. C. Lin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date guide focuses on the understanding of key regulatory mechanisms governing gene expression in Escherichia coli. Studies of E. coli not only provide the first models of gene regulation, but research continues to yield different control mechanisms.
Download or read book Differential Gene Expression by Two Strains of Escherichia Coli K12 and an Environmental Isolate in Response to Temperature and Nutrient Stress Using Microarrays written by Charmaine Wetherell and published by . This book was released on 2009 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study we evaluated the use of microarray technology in Bacterial SourceTracking (BST), with the intent of identifying candidate genes to be used to differentiate between closely related strains of Escherichia coli. We anticipate that genes differentially expressed in response to stress by both a laboratory strain and environmental isolate could be used as marker genes on a microarray in BST. Using microarrays we characterized the transcriptional response of E. coli K12 MG1655 (K12), maintained for about 80 years in an artificial environment versus E. coli 43(C)-4A or E43, a strain recently isolated from the natural environment. The responses were to a temperature decrease from 37?C to 21?C, and to growth in a diluted LB broth (dLB). Overall we found that there were more genes differentially expressed between the strains than either strain's response to the stresses. At the 4-fold threshold, at reduced temperature there were only 26 genes differentially regulated by K12 and 9 by E43,respectively. In K12 the functions of some differentially expressed genes were linked to the general stress response and biofilm formation. A few genes differentially expressed by E43 were involved in the stress response. Similarly, in response to dLB there were 46 and 11 genes differentially expressed by K12 and E43 respectively. While it appeared that genes differentially expressed by K12 were involved in dealing with nutrient deficiencies, the genes differentially expressed by E43 did not show a similar pattern. Of these genes, none were obvious candidate genes for a microarray to be used in BST. However, we did find that 169, 286 and 254 genes were differentially expressed between K12 and E43 at 37?C, 21?C, and in dLB, respectively. Many of these genes were differentially expressed under all 3 growth conditions. Several of the genes differentially expressed between the strains were in the O-antigen-lipopolysaccharide gene family and are genes that could potentially be used on a microarray in BST. We found that E43, isolated from the natural environment, did not respond to the growth conditions in the same way as the model strain, E. coli K12, indicating that strains of E. coli isolated from the natural environment may not be identical to the model strain K12. It is suggested that other strains isolated from the natural environment be investigated. Such studies could also reveal genes differentially expressed between the strains that could be used on a microarray for use in BST.
Download or read book Transcriptional Regulation of the Escherichia Coli K 12 Grx Gene written by Weiyin Shen and published by . This book was released on 1997 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Differential Gene Expression by Two Strains of Escherichia Coli K12 and an Environmental Isolate in Response to Temperature and Nutrient Stress Using Microarrays written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study we evaluated the use of microarray technology in Bacterial Source Tracking (BST), with the intent of identifying candidate genes to be used to differentiate between closely related strains of Escherichia coli. We anticipate that genes differentially expressed in response to stress by both a laboratory strain and environmental isolate could be used as marker genes on a microarray in BST. Using microarrays we characterized the transcriptional response of E. coli K12 MG1655 (K12), maintained for about 80 years in an artificial environment versus E. coli 43(C)-4A or E43, a strain recently isolated from the natural environment. The responses were to a temperature decrease from 37C to 21C, and to growth in a diluted LB broth (dLB). Overall we found that there were more genes differentially expressed between the strains than either strain's response to the stresses. At the 4-fold threshold, at reduced temperature there were only 26 genes differentially regulated by K12 and 9 by E43, respectively. In K12 the functions of some differentially expressed genes were linked to the general stress response and biofilm formation. A few genes differentially expressed by E43 were involved in the stress response. Similarly, in response to dLB there were 46 and 11 genes differentially expressed by K12 and E43 respectively. While it appeared that genes differentially expressed by K12 were involved in dealing with nutrient deficiencies, the genes differentially expressed by E43 did not show a similar pattern. Of these genes, none were obvious candidate genes for a microarray to be used in BST. However, we did find that 169, 286 and 254 genes were differentially expressed between K12 and E43 at 37C, 21C, and in dLB, respectively. Many of these genes were differentially expressed under all 3 growth conditions. Several of the genes differentially expressed between the strains were in the O-antigen-lipopolysaccharide gene family and are genes that could potentially be used on a.
Download or read book DNA Topology written by Andrew D. Bates and published by Oxford University Press, USA. This book was released on 2005 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A key aspect of DNA is its ability to form a variety of structures, this book explains the origins and importance of such structures"--Provided by publisher.
Download or read book Studies on the physiological role of the dnaZ gene in Escherichia coli K 12 written by Herman Chu and published by . This book was released on 1976 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress Induced Mutagenesis written by David Mittelman and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of stress-induced mutagenesis has changed ideas about mutation and evolution, and revealed mutagenic programs that differ from standard spontaneous mutagenesis in rapidly proliferating cells. The stress-induced mutations occur during growth-limiting stress, and can include adaptive mutations that allow growth in the otherwise growth-limiting environment. The stress responses increase mutagenesis specifically when cells are maladapted to their environments, i.e. are stressed, potentially accelerating evolution then. The mutation mechanism also includes temporary suspension of post-synthesis mismatch repair, resembling mutagenesis characteristic of some cancers. Stress-induced mutation mechanisms may provide important models for genome instability underlying some cancers and genetic diseases, resistance to chemotherapeutic and antibiotic drugs, pathogenicity of microbes, and many other important evolutionary processes. This book covers pathways of stress-induced mutagenesis in all systems. The principle focus is mammalian systems, but much of what is known of these pathways comes from non-mammalian systems.
Download or read book Studies on the Nucleotide Sequence and Expression of the Photoreactivation PHR Gene of Escherichia Coli K 12 written by Matthew Charles Lorence and published by . This book was released on 1985 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bacterial Biofilms written by Tony Romeo and published by Springer Science & Business Media. This book was released on 2008-02-26 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the biological world, bacteria thrive predominantly in surface-attached, matrix-enclosed, multicellular communities or biofilms, as opposed to isolated planktonic cells. This choice of lifestyle is not trivial, as it involves major shifts in the use of genetic information and cellular energy, and has profound consequences for bacterial physiology and survival. Growth within a biofilm can thwart immune function and antibiotic therapy and thereby complicate the treatment of infectious diseases, especially chronic and foreign device-associated infections. Modern studies of many important biofilms have advanced well beyond the descriptive stage, and have begun to provide molecular details of the structural, biochemical, and genetic processes that drive biofilm formation and its dispersion. There is much diversity in the details of biofilm development among various species, but there are also commonalities. In most species, environmental and nutritional conditions greatly influence biofilm development. Similar kinds of adhesive molecules often promote biofilm formation in diverse species. Signaling and regulatory processes that drive biofilm development are often conserved, especially among related bacteria. Knowledge of such processes holds great promise for efforts to control biofilm growth and combat biofilm-associated infections. This volume focuses on the biology of biofilms that affect human disease, although it is by no means comprehensive. It opens with chapters that provide the reader with current perspectives on biofilm development, physiology, environmental, and regulatory effects, the role of quorum sensing, and resistance/phenotypic persistence to antimicrobial agents during biofilm growth.
Download or read book DNA Microarrays and Gene Expression written by Pierre Baldi and published by . This book was released on 2002-09-19 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concise, 2002 inter-disciplinary introduction to DNA microarray technology, which is revolutionizing biology and medicine.
Download or read book Recombinational Repair of DNA Damage written by Andrei Kuzminov and published by Landes Bioscience. This book was released on 1996 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bacterial Physiology and Metabolism written by Byung Hong Kim and published by Cambridge University Press. This book was released on 2008-02-21 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent determination of genome sequences for a wide range of bacteria has made in-depth knowledge of prokaryotic metabolic function essential in order to give biochemical, physiological, and ecological meaning to the genomic information. Clearly describing the important metabolic processes that occur in prokaryotes under different conditions and in different environments, this advanced text provides an overview of the key cellular processes that determine bacterial roles in the environment, biotechnology, and human health. Prokaryotic structure is described as well as the means by which nutrients are transported into cells across membranes. Glucose metabolism through glycolysis and the TCA cycle are discussed, as well as other trophic variations found in prokaryotes, including the use of organic compounds, anaerobic fermentation, anaerobic respiratory processes, and photosynthesis. The regulation of metabolism through control of gene expression and control of the activity of enzymes is also covered, as well as survival mechanisms used under starvation conditions.
Download or read book Subcellular Fractionation written by John M. Graham and published by Oxford University Press. This book was released on 1997 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the fast changing world of cell biology it is often required that particular membranes or subcellular organisms be isolated from the structure for investigative purposes. This book shows how to do this in a practical, hands-on way.
Download or read book Principles of Nutrigenetics and Nutrigenomics written by Raffaele De Caterina and published by Academic Press. This book was released on 2019-09-22 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Nutrigenetics and Nutrigenomics: Fundamentals for Individualized Nutrition is the most comprehensive foundational text on the complex topics of nutrigenetics and nutrigenomics. Edited by three leaders in the field with contributions from the most well-cited researchers conducting groundbreaking research in the field, the book covers how the genetic makeup influences the response to foods and nutrients and how nutrients affect gene expression. Principles of Nutrigenetics and Nutrigenomics: Fundamentals for Individualized Nutrition is broken into four parts providing a valuable overview of genetics, nutrigenetics, and nutrigenomics, and a conclusion that helps to translate research into practice. With an overview of the background, evidence, challenges, and opportunities in the field, readers will come away with a strong understanding of how this new science is the frontier of medical nutrition. Principles of Nutrigenetics and Nutrigenomics: Fundamentals for Individualized Nutrition is a valuable reference for students and researchers studying nutrition, genetics, medicine, and related fields. - Uniquely foundational, comprehensive, and systematic approach with full evidence-based coverage of established and emerging topics in nutrigenetics and nutrigenomics - Includes a valuable guide to ethics for genetic testing for nutritional advice - Chapters include definitions, methods, summaries, figures, and tables to help students, researchers, and faculty grasp key concepts - Companion website includes slide decks, images, questions, and other teaching and learning aids designed to facilitate communication and comprehension of the content presented in the book
Download or read book Regulation of Bacterial Virulence written by Michael L. Vasil and published by American Society for Microbiology Press. This book was released on 2012-12-05 with total page 1189 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive compendium of scholarly contributions relating to bacterial virulence gene regulation. • Provides insights into global control and the switch between distinct infectious states (e.g., acute vs. chronic). • Considers key issues about the mechanisms of gene regulation relating to: surface factors, exported toxins and export mechanisms. • Reflects on how the regulation of intracellular lifestyles and the response to stress can ultimately have an impact on the outcome of an infection. • Highlights and examines some emerging regulatory mechanisms of special significance. • Serves as an ideal compendium of valuable topics for students, researchers and faculty with interests in how the mechanisms of gene regulation ultimately affect the outcome of an array of bacterial infectious diseases.
Download or read book Synthetic Biology of Cyanobacteria written by Weiwen Zhang and published by Springer. This book was released on 2018-08-08 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights recent breakthroughs in the interdisciplinary areas of synthetic biology, metabolic engineering and bioprocess engineering for the production of green chemicals. It also presents practical experimental and computational tools for the design, construction and manipulation of cyanobacteria cell factories. The respective contributions cover new technologies in the field, such as novel genetic transformation techniques and bioinformatics analysis methods and address various aspects of cyanobacterial synthetic biology, offering a valuable resource for students and researchers in the fields of industry microbiology and biomedical engineering.
