Download or read book A Mechanistic Study of Lambdaphage Mediated Recombination in E Coli written by Shing-Yan Michael Huen and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "A Mechanistic Study of Lambdaphage-mediated Recombination in E. Coli" by Shing-yan, Michael, Huen, 禤承恩, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: SUMMARY The advent of the λ Red recombination system has proven invaluable as an alternative methodology for DNA manipulation. While the limited availability of restriction sites constitutes a major obstacle during conventional cloning strategy, the λ Red system, utilizing single-stranded oligonucleotides (SSOs), can efficiently modify either chromosomal or episomal sequences. The current model envisions that the SSO is annealed to its target locus at the replication fork, serving as a primer for DNA synthesis by the replication machinery. To understand the mechanistic basis behind this process, strains carrying mutations in various components important for E. coli recombination and DNA replication were generated. Amongst these, mutants compromised in DNA replication fidelity and processivity exhibited up to 20-fold increases of recombinant formation. Detailed analysis suggests that strains with defects in β-clamp loading, a prerequisite for processive DNA replication, adopted a template switching mechanism for their elevated level of recombination efficiencies. Based on this model, I further tested the plausibility of a template switching event during λ Red/SSO-mediated recombination, and provide additional evidence in support of a replication intermediate during this targeted repair process. Taken together, these results are supportive of a single-strand annealing model at replication forks during λ Red/SSO-mediated recombination in E. coli. viii DOI: 10.5353/th_b3532185 Subjects: Escherichia coli Recombinant DNA Genetic recombination Bacteriophages - Genetics Bacterial genetics
Download or read book The Bacteriophage Lambda written by Alfred Day Hershey and published by . This book was released on 1971 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bacteriophages written by David R. Harper and published by Springer Nature. This book was released on 2021-01-30 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first major reference work dedicated to the mannifold industrial and medical applications of bacteriophages provides both theoretical and practical insights into the emerging field of bacteriophage biotechnology. The book introduces to bacteriophage biology, ecology and history and reviews the latest technologies and tools in bacteriophage detection, strain optimization and nanotechnology. Usage of bacteriophages in food safety, agriculture, and different therapeutic areas is discussed in detail. This book serves as essential guide for researchers in applied microbiology, biotechnology and medicine coming from both academia and industry.
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 Acinetobacter baumannii written by Indranil Biswas and published by Humana Press. This book was released on 2019-02-24 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This detailed volume serves clinicians and basic science researchers studying the increasingly antibiotic resistant Gram-negative bacterium Acinetobacter baumannii. Chapters detail microbiological techniques, biochemical techniques, clinical samples, and next generation omics techniques to characterize the organism at the molecular level. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Acinetobacter baumannii: Methods and Protocols aims to ensure successful results in the further study of this high priority area of antibiotic study.
Download or read book Bacterial and Bacteriophage Genetics written by Edward A. Birge and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial genetics has become one of the cornerstones of basic and applied microbiology and has contributed key knowledge for many of the fundamental advances of modern biology. The second edition of this comprehensive yet concise text, first published in 1981, has been thoroughly updated and redesigned to account for new developments in this rapidly expanding field. All of the major topics in modern bacterial and bacteriophage genetics are presented, among them mutations and mutagenesis, genetics of T4 bacteriophage and other intemperate and temperate phages, transduction, transformation, conjugation and plasmids, recombination and repair, probability laws for prokaryote cultures, as well as applied bacterial genetics.
Download or read book Genes Signals written by Mark Ptashne and published by CSHL Press. This book was released on 2002 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: P. 103.
Download or read book Bacteriophage T4 written by Christopher K. Mathews and published by . This book was released on 1983 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Biology of the Cell written by Rob Phillips and published by Garland Science. This book was released on 2012-10-29 with total page 1089 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical Biology of the Cell is a textbook for a first course in physical biology or biophysics for undergraduate or graduate students. It maps the huge and complex landscape of cell and molecular biology from the distinct perspective of physical biology. As a key organizing principle, the proximity of topics is based on the physical concepts that
Download or read book Prognostic Epigenetics written by and published by Academic Press. This book was released on 2019-11-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides comprehensive information on how mapping an individual's epigenome can be medically relevant and holds the potential to improve preventive medicine and precision therapeutics at an early-stage (prior to disease onset). In order to advance clinical adoption of the recently developed epigenetic approaches, it is necessary for translational scientists, clinicians, and students to gain a better understanding about epigenetic mechanisms that are associated with a particular disorder; and to be able to effectively identify biomarkers that can be applied in drug development and for better diagnosis and prognosis of diseases. Prognostic Epigenetics is the most-inclusive volume to-date specifically dedicated to epigenetic markers that have been developed for prognosis of diseases, recent advances in this field, the clinical implementation of this research, and the future outlook.
Download or read book The Bacteriophages written by Richard Calendar and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been 10 years since Plenum included a series of reviews on bacte riophages, in Comprehensive Virology. Chapters in that series contained physical-genetic maps but very little DNA sequence information. Now the complete DNA sequence is known for some phages, and the se quences for others will soon follow. During the past 10 years two phages have come into common use as reagents: A phage for cloning single copies of genes, and Ml3 for cloning and DNA sequencing by the dideoxy termi nation method. Also during that period the use of alternative sigma fac tors by RNA polymerase has become established for SPOl and T4. This seems to be a widely used mechanism in bacteria, since it has been implicated in sporulation, heat shock response, and regulation of nitro gen metabolism. The control of transcription by the binding of A phage CII protein to the -35 region of the promoter is a recent finding, and it is not known how widespread this mechanism may be. This rapid progress made me eager to solicit a new series of reviews. These contributions are of two types. Each of the first type deals with an issue that is exemplified by many kinds of phages; chapters of this type should be useful in teaching advanced courses. Chapters of the second type provide comprehensive pictures of individual phage families and should provide valuable information for use in planning experiments.
Download or read book Bacteriophages written by Renos Savva and published by BoD – Books on Demand. This book was released on 2020-02-19 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteriophages are viruses that utilise bacterial cells as factories for their own propagation and as safe havens for their genomic material. They are capable of equipping bacteria with properties that bestow environmental advantages. They are also capable of specifically and efficiently killing bacteria.Bacteriophages are resilient in a wide diversity of environments, presumed to be as ancient as life itself, and are estimated to be the most numerous biological entities on the planet. Their overarching capacity to survive via molecular adaptation is supported by an arsenal of encoded enzymatic tools, which also enabled biotechnology. This volume includes contributions that describe bacteriophages as nanomachines, genetic engineers, and also as medicines and technologies of the future, including relevant production and process issues.
Download or read book Viral Replication Enzymes and their Inhibitors Part A written by and published by Academic Press. This book was released on 2021-10-23 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viral Replication Enzymes and their Inhibitors Part A, Volume 49, the latest release in the Enzymes series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of related topics. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in The Enzymes series
Download or read book Aquaculture Genome Technologies written by Zhanjiang (John) Liu and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genomics is a rapidly growing scientific field with applications ranging from improved disease resistance to increased rate of growth. Aquaculture Genome Technologies comprehensively covers the field of genomics and its applications to the aquaculture industry. This volume looks to bridge the gap between a basic understanding of genomic technology to its practical use in the aquaculture industry.
Download or read book Phage Therapy Past Present and Future written by Stephen T. Abedon and published by Frontiers Media SA. This book was released on 2017-09-05 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, the first observation of a transmissible lytic agent that is specifically active against a bacterium (Bacillus anthracis) was by a Russian microbiologist Nikolay Gamaleya in 1898. At that time, however, it was too early to make a connection to another discovery made by Dmitri Ivanovsky in 1892 and Martinus Beijerinck in 1898 on a non-bacterial pathogen infecting tobacco plants. Thus the viral world was discovered in two of the three domains of life, and our current understanding is that viruses represent the most abundant biological entities on the planet. The potential of bacteriophages for infection treatment have been recognized after the discoveries by Frederick Twort and Felix d’Hérelle in 1915 and 1917. Subsequent phage therapy developments, however, have been overshadowed by the remarkable success of antibiotics in infection control and treatment, and phage therapy research and development persisted mostly in the former Soviet Union countries, Russia and Georgia, as well as in France and Poland. The dramatic rise of antibiotic resistance and especially of multi-drug resistance among human and animal bacterial pathogens, however, challenged the position of antibiotics as a single most important pillar for infection control and treatment. Thus there is a renewed interest in phage therapy as a possible additive/alternative therapy, especially for the infections that resist routine antibiotic treatment. The basis for the revival of phage therapy is affected by a number of issues that need to be resolved before it can enter the arena, which is traditionally reserved for antibiotics. Probably the most important is the regulatory issue: How should phage therapy be regulated? Similarly to drugs? Then the co-evolving nature of phage-bacterial host relationship will be a major hurdle for the production of consistent phage formulae. Or should we resort to the phage products such as lysins and the corresponding engineered versions in order to have accurate and consistent delivery doses? We still have very limited knowledge about the pharmacodynamics of phage therapy. More data, obtained in animal models, are necessary to evaluate the phage therapy efficiency compared, for example, to antibiotics. Another aspect is the safety of phage therapy. How do phages interact with the immune system and to what costs, or benefits? What are the risks, in the course of phage therapy, of transduction of undesirable properties such as virulence or antibiotic resistance genes? How frequent is the development of bacterial host resistance during phage therapy? Understanding these and many other aspects of phage therapy, basic and applied, is the main subject of this Topic.
Download or read book Bacteriophage written by Stephen Mc Grath and published by Caister Academic Press Limited. This book was released on 2007 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by eminent international researchers actively involved in the disparate areas of bacteriophage research this book focuses on the current rapid developments in this exciting field.
