Download or read book Analysis of the RNA binding Properties of Hfq Proteins from the Bacteria Escherichia Coli Listeria Monocytogenes and Caulobacter Crescentus written by Kelly Chambers and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial small, noncoding (s)RNAs play important roles in post-transcriptional gene regulation through complementary base-pairing interactions with target messenger (m)RNA molecules,. Many sRNAs rely on protein partners to carry out their regulatory functions. As such, the interactions between proteins and small RNAs contribute to gene regulation across all three domains of life. In particular, the hexameric RNA chaperone protein, Hfq, has been shown to mediate interactions between bacterial small (s)RNAs and their target mRNAs as a part of bacterial stress responses. Hfq orthologues have been characterized in approximately half of all sequenced bacterial species. This protein functions to stabilize sRNA steady-state expression levels, protect sRNAs from cleavage, accelerate efficient base pairing between sRNA and mRNA to activate or repress translation, and may recruit cellular endonucleases to degrade the transcript following repression. To examine the RNA- and protein-binding properties of Hfq proteins in Escherichia coli, Listeria monocytogenes, and Caulobacter crescentus, I utilized a set of two transcription-based bacterial-hybrid assays designed to detect these interactions in vivo. In the bacterial two-hybrid assay (B2H), Hfq monomers from each bacterial species displayed inter- and intra-species multimerization, supporting the notion that hexamerization is a conserved feature of Hfq orthologs. Through the utilization of a novel bacterial three-hybrid assay designed to detect RNA-protein interactions in vivo, I report that the Hfq protein from each of these species is able to recognize a variety of sRNAs with unique binding patterns. A comparative analysis of the relative interaction strengths of Hfq from each of these species with a panel of E. coli sRNAs shows that the C. crescentus Hfq often displays stronger sRNA-binding interactions than E. coli Hfq and L. monocytogenes Hfq. Further analysis of these three proteins at the level of primary sequence and tertiary structure suggests that the presence of certain ionizable amino acid residues in the Hfq sequence may play particularly important roles in binding sRNAs across bacterial species.
Download or read book ESR Spektroskopie in der industriellen Glasanalytik written by Institut für Werkstoffwissenschaften Lehrstuhl Werkstoffwissenschaft (Glas und Keramik) and published by . This book was released on 2001 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulating with RNA in Bacteria and Archaea written by Gisela Storz and published by John Wiley & Sons. This book was released on 2018-11-01 with total page 1065 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revealing the many roles of RNA in regulating gene expression For decades after the discoveries of messenger RNA, transfer RNA, and ribosomal RNA, it was largely assumed that the role of RNA in the cell was limited to shuttling the genomic message, chaperoning amino acids, and toiling in the ribosomes. Eventually, hints that RNA molecules might have regulatory roles began to appear. With the advent of genomics and bioinformatics, it became evident that numerous other RNA forms exist and have specific functions, including small RNAs (sRNA), RNA thermometers, and riboswitches to regulate core metabolic pathways, bacterial pathogenesis, iron homeostasis, quorum sensing, and biofilm formation. All of these functions, and more, are presented in Regulating with RNA in Bacteria and Archaea, written by RNA biologists from around the globe. Divided into eight sections-RNases and Helicases, Cis-Acting RNAs, Cis Encoded Base Pairing RNAs, Trans-Encoded Base Pairing RNAs, Protein Titration and Scaffolding, General Considerations, Emerging Topics, and Resources-this book serves as an excellent resource for established RNA biologists and for the many scientists who are studying regulated cellular systems. It is no longer a fair assumption that gene expression regulation is the provenance of proteins only or that control is exerted primarily at the level of transcription. This book makes clear that regulatory RNAs are key partners along with proteins in controlling the complex interactions and pathways found within prokaryotes.
Download or read book Bacterial Physiology written by Walid El-Sharoud and published by Springer Science & Business Media. This book was released on 2007-12-07 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of new molecular methodologies in the study of bacterial behavior and cell architecture has enabled new revolutionary insights and discoveries in these areas. This new text presents recent developments in bacterial physiology that are highly relevant to a wide range of readership including those interested in basic and applied knowledge. Its chapters are written by international scientific authorities at the forefront of the subject. The value of this recent knowledge in bacterial physiology is not only restricted to fundamental biology. It also extends to biotechnology and drug-discovery disciplines.
Download or read book RNA Worlds written by John F. Atkins and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews our understanding of two RNA worlds: the primordial RNA world before DNA, in which RNA was both information store and biocatalyst; and the contemporary RNA world, in which mRNA, tRNA, rRNA, siRNA, miRNA, and a host of other RNAs operate.
Download or read book Advances in Animal Biotechnology and its Applications written by Suresh Kumar Gahlawat and published by Springer. This book was released on 2019-02-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the recent advancements in cutting-edge techniques and applications of Biotechnology. It provides an overview of prospects and applications while emphasizing modern, and emerging areas of Biotechnology. The chapters are dedicated to various field of Biotechnology including, genome editing, probiotics, in-silico drug designing, nanoparticles and its applications, molecular diagnostics, tissue engineering, cryopreservation, and antioxidants. It is useful for both academicians and researchers in the various disciplines of life sciences, agricultural sciences, medicine, and Biotechnology in Universities, Research Institutions, and Biotech companies. This book provides the readers with a comprehensive knowledge of topics in Genomics, Bionanotechnology, Drug Designing, Diagnostics, Therapeutics, Food and Environmental Biotechnology. The chapters have been written with special reference to the latest developments in the frontier areas of Biotechnology that impacts the Biotech industries.
Download or read book Prokaryotic Cell Wall Compounds written by Helmut König and published by Springer Science & Business Media. This book was released on 2010-03-18 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial cell wall structures play a significant role in maintaining cells’ shape, as protecting layers against harmful agents, in cell adhesion and in positive and negative biological activities with host cells. All prokaryotes, whether they are bacteria or archaea, rely on their surface polymers for these multiple functions. Their surfaces serve as the indispensable primary interfaces between the cell and its surroundings, often mediating or catalyzing important interactions. Prokaryotic Cell Wall Compounds summarizes the current state of knowledge on the prokaryotic cell wall. Topics concerning bacterial and archaeal polymeric cell wall structures, biological activities, growth and inhibition, cell wall interactions and the applications of cell wall components, especially in the field of nanobiotechnology, are presented.
Download or read book RNA Biochemistry and Biotechnology written by Jan Barciszewski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: RNA Biochemistry and Biotechnology describes various aspects of nucleic acid and protein structure, mainly RNA structure and proteins, interacting with specific RNA species. Papers deal with DNA protein interactions, telomerase, aminoacyl-tRNA synthetases, elongation factor Tu, DNA repair, RNA structure, NMR technology, RNA aptamer interaction of biological macromolecules with metal ions. Two papers deal with theoretical aspects of RNA structure production and computer modelling. Many papers describe the possibility of commercial application of RNA biotechnology. One article discusses the impact of direct democracy on basic science supporting biotechnology. Readership: Advanced graduate students, Ph.D. students and young scientists as well as specialists in the field.
Download or read book Chemistry Biochemistry and Biology of 1 3 Beta Glucans and Related Polysaccharides written by Antony Bacic and published by Academic Press. This book was released on 2009-07-07 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry, Biochemistry, and Biology of 1-3 Beta Glucans and Related Polysaccharides presents a comprehensive, systematic and authoritative survey of information about a family of chemically related, but functionally diverse, naturally occurring polysaccharides--the (1-3)-glucans. International contributors describe the chemical and physicochemical properties of these glucans and their derivatives and the molecular biological and structural aspects of the enzymes involved in their formation and breakdown. A detailed analysis of their physiological roles in the various biological situations in which they are found will be provided. Additionally, evolutionary relationships among the family of these glucans will be described. - Topics of medical relevance include detailing the glucans' interactions with the immune system and research for cancer therapy applications - Web resource links allow scientists to explore additional beta glucan research - Separate indexes divided into Species and Subject for enhanced searchability
Download or read book Regulation of Gene Expression by Small RNAs written by Rajesh K. Gaur and published by CRC Press. This book was released on 2009-04-27 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Findings Revolutionize Concepts of Gene FunctionEndogenous small RNAs have been found in various organisms, including humans, mice, flies, worms, fungi, and bacteria. Furthermore, it's been shown that microRNAs acting as cellular rheostats have the ability to modulate gene expression. In higher eukaryotes, microRNAs may regulate as much as 50 p
Download or read book RNA Methodologies written by Robert E. Farrell Jr. and published by Elsevier. This book was released on 2010-07-22 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: This laboratory guide represents a growing collection of tried, tested and optimized laboratory protocols for the isolation and characterization of eukaryotic RNA, with lesser emphasis on the characterization of prokaryotic transcripts. Collectively the chapters work together to embellish the RNA story, each presenting clear take-home lessons, liberally incorporating flow charts, tables and graphs to facilitate learning and assist in the planning and implementation phases of a project.RNA Methodologies, 3rd edition includes approximately 30% new material, including chapters on the more recent technologies of RNA interference including: RNAi; Microarrays; Bioinformatics. It also includes new sections on: new and improved RT-PCR techniques; innovative 5' and 3' RACE techniques; subtractive PCR methods; methods for improving cDNA synthesis.* Author is a well-recognized expert in the field of RNA experimentation and founded Exon-Intron, a well-known biotechnology educational workshop center * Includes classic and contemporary techniques * Incorporates flow charts, tables, and graphs to facilitate learning and assist in the planning phases of projects
Download or read book RNA Chaperones written by Tilman Heise and published by . This book was released on 2020 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a wide spectrum of methods to study RNA chaperones in vitro, at the single molecule level, and protocols useful for cell-based assays. Beginning with a section on a number of bacterial proteins for study, the volume also explores proteins from eukaryotic cells and how to delve into the complex interactions between RNA chaperones and the folding and unfolding of proteins. Written for the highly successful Methods in Molecular Biology series, 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 practical, RNA Chaperones: Methods and Protocols serves as an ideal guide for scientists and students interested in RNA biology and RNA chaperones. Chapter 3 is available Open Access under a CC-BY 4.0 license via link.springer.com.
Download or read book Hands On Machine Learning with R written by Brad Boehmke and published by CRC Press. This book was released on 2019-11-07 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hands-on Machine Learning with R provides a practical and applied approach to learning and developing intuition into today’s most popular machine learning methods. This book serves as a practitioner’s guide to the machine learning process and is meant to help the reader learn to apply the machine learning stack within R, which includes using various R packages such as glmnet, h2o, ranger, xgboost, keras, and others to effectively model and gain insight from their data. The book favors a hands-on approach, providing an intuitive understanding of machine learning concepts through concrete examples and just a little bit of theory. Throughout this book, the reader will be exposed to the entire machine learning process including feature engineering, resampling, hyperparameter tuning, model evaluation, and interpretation. The reader will be exposed to powerful algorithms such as regularized regression, random forests, gradient boosting machines, deep learning, generalized low rank models, and more! By favoring a hands-on approach and using real word data, the reader will gain an intuitive understanding of the architectures and engines that drive these algorithms and packages, understand when and how to tune the various hyperparameters, and be able to interpret model results. By the end of this book, the reader should have a firm grasp of R’s machine learning stack and be able to implement a systematic approach for producing high quality modeling results. Features: · Offers a practical and applied introduction to the most popular machine learning methods. · Topics covered include feature engineering, resampling, deep learning and more. · Uses a hands-on approach and real world data.
Download or read book Agrobacterium Biology written by Stanton B. Gelvin and published by Springer. This book was released on 2018-11-28 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews various facets of Agrobacterium biology, from modern aspects of taxonomy and bacterial ecology to pathogenesis, bacterial cell biology, plant and fungal transformation, natural transgenics, and biotechnology. Agrobacterium-mediated transformation is the most extensively utilized platform for generating transgenic plants, but modern biotechnology applications derive from more than 40 years of intensive basic scientific research. Many of the biological principles established by this research have served as models for other bacteria, including human and animal pathogens. Written by leading experts and highlighting recent advances, this volume serves both as an introduction to Agrobacterium biology for students as well as a more comprehensive text for research scientists.
Download or read book Escherichia Coli written by Max Sussman and published by Cambridge University Press. This book was released on 1997-03-27 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: This topical compilation surveys the role of Escherichia coli in health and disease, including food poisoning.
Download or read book Laboratory Tests and Diagnostic Procedures written by Cynthia C. Chernecky and published by Elsevier Health Sciences. This book was released on 2012-12-01 with total page 1235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Find complete answers to questions such as which laboratory tests to order or what the results might mean. Laboratory Tests and Diagnostic Procedures, 6th Edition covers more tests than any other reference of its kind, with over 900 lab tests and diagnostic procedures in all. In Part I, you'll find an alphabetical list of hundreds of diseases, conditions, and symptoms, including the tests and procedures most commonly used to confirm or rule out a suspected diagnosis. In Part II, you’ll find descriptions of virtually every laboratory and diagnostic test available. This edition is updated with the latest research and over 20 NEW test entries. Written by educator Cynthia Chernecky and clinical nurse specialist Barbara Berger, this lab reference covers today’s lab tests with concise, easy-to-use information. More than 900 laboratory tests and diagnostic procedures are included — more than any other reference! Over 600 diseases, conditions, and symptoms are listed, along with the tests used to confirm them. Alphabetical organization and A-to-Z thumb tabs make it easy to find the information you’re looking for. Alternative test names and acronyms are cross-referenced to simplify lookup. Instructions for client and family teaching help you offer guidance concerning test preparation and follow-up care. Age and gender-specific norms are provided, giving you complete lifespan coverage. Risks and Contraindications are highlighted to help you safeguard your patients and provide effective care. Panic Level Symptoms and Treatment are provided for dangerously increased and decreased levels. Minimum volumes for blood samples are included, useful when a client’s blood preservation is essential, as well as information on whether blood specimens can be drawn during hemodialysis. Tests for toxic substances are included, making this a lab, diagnostic, and toxicology book all in one. Abbreviations, measurement prefixes, and symbols are listed on the front and back covers for convenience. Information on herbal supplements indicates when a client’s use of natural remedies might affect test results. Over 20 NEW test entries present the latest tests and procedures, with a strong focus on affordable, clinically relevant genetic tests. UPDATED content includes the latest research relating to accuracy of tests, diagnostic value of results, and associated cost-benefit ratios.
Download or read book Microbial Ecology and Infectious Disease written by Eugene Rosenberg and published by ASM Press. This book was released on 1999 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent research in microbial ecology has revealed new tools and new concepts which can stimulate medical microbiology. Similarly, some of the best research in microbial ecology has been carried out by medical microbiologists trying to understand how microorganisms survive and live in a particular ecological niche in the human body. This new volume emphasizes how interaction between these two disciplines can stimulate new research approaches and lead to unifying concepts. Experts review important new topics in microbiology, including quorum sensing, horizontal gene transfer in Vibrio cholerae, anthrax toxin, invasion mechanisms, bacterial bleaching of corals, response to starvation, cell–to–cell interactions, natural genetic engineering, and prions. Each chapter offers a general introduction to the topic, a specific introduction to the research, a critical evaluation of the most recent research on the subject, and a special section on unresolved questions and future research. The book also provides an up–to–date and comprehensive bibliography. Microbial Ecology and Infectious Disease contains a selection of some of the best recent research in microbial ecology and the mechanisms of infectious disease. It is valuable reading for teachers, students, and researchers in general microbiology, medical microbiology, and microbial ecology.
