Search results for: protein-secretion-in-bacteria

Protein Secretion Pathways in Bacteria

Author : B. Oudega
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For bacteria ..."the times are achanging"... The genomes of over 60 different bacteria have now been sequenced, and we know a lot about the important research organism Escherichia coli, the important industrial organism Bacillus subtilis, and about important plant and human pathogens. It will not take long before we know all the gene products and their functions of a few of these bacteria. Some of us already begin to think about a digital model E. coli or Bacillus cell. For that end we need to know all the physiological activities and metabolic routes of the cell. But in addition we like to know how things work at the molecular level and how protein and membranes as well as other (macromolecular) structures work together to carry out specific cell functions. Protein Secretion Pathways in Bacteria describes all the known folding and targeting routes of inner and outer membrane proteins as well as of proteins that are secreted by several specific export routes. The book gives detailed molecular information about the structures that are important for the different mechanisms involved. This is a valuable contribution to the understanding of how rather simple and yet complex bacterial cells work.

Bacterial Secreted Proteins

Author : Karl Wooldridge
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Extensive publication on bacterial secreted proteins, secretory systems and their vital role in bacterial pathogenesis. Immense value to all microbiologists, molecular biologists, public health scientists and other researchers and professionals.

Organization of Prokaryotic Cell Membranes

Author : Bijan K. Ghosh
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"This book has information about prokaryotes, prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on earth. As organized in the Three Domain System, prokaryotes include bacteria and archaeans. Some prokaryotes, such as cyanobacteria, are photosynthetic organisms and are capable of photosynthesis. There are sections in this book that explain the role of membranes in transport, about bioenergetics of bacteria cells, Mycoplasma, immunology of bacteria membrane and receptors."--Provided by publisher.

Protein Secretion and Export in Bacteria

Author : Henry C. Wu
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The last decade has witnessed rapid progress in our under standing of the mechanisms of protein export and secretion in both prokaryotic and eukaryotic cells. Studies of protein secretion across the membranes of the rough endoplasmic reticulum have led to the formulation of the now-classic signal hypothesis, which has stimulated many discussions and new ideas, and the identification of the signal recogni tion particle as an organelle in the initiation of the export process. However, more recent work pertaining to intrage nic information related to targeting specific proteins for either secretion or membrane localization, the energetics of protein secretion, the timing of synthesis versus the initia tion of export, structural requirements for the processing of precursor proteins, and the identification of the proces sing enzymes (signal peptidases), has been the result of a combined biochemical and genetic approach to the study of protein localization in bacteria. While reviews on the biochemistry and genetics of pro tein secretion have appeared frequently in recent years, this book attempts to summarize the current status and the future perspectives of this rapidly moving field in a single volume. Topics covered in this book include the genetics of protein secretion in E. coli, biochemical analysis of pro tein export in vitro, signal peptidases, excretion of colicins and hemolysin in E. coli, protein secretion in Bacillus, and protein secretion cloning vectors.

Bacterial Type III Protein Secretion Systems

Author : Samuel Wagner
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One of the most exciting developments in the field of bacterial pathogenesis in recent years is the discovery that many pathogens utilize complex nanomachines to deliver bacterially encoded effector proteins into eukaryotic and prokaryotic target cells to modulate a variety of cellular functions for the pathogen’s benefit. These protein-delivery machines include the type III secretion system (T3SS), which is widespread in nature and encoded not only by bacteria pathogenic to vertebrates or plants, but also by bacteria that are symbiotic to plants or insects. Because they are essential virulence factors for many important human pathogens, these systems are emerging as a prime target for the development of new-generation, anti-infective drugs. This book reviews our current understanding of these intriguing injection machines as well as of the closely related T3SS that serves in flagella assembly. Individual chapters focus on regulation, assembly, structure, and function of the type III secretion machine and on the evolution of the secreted effector proteins. Given its scope, this book will appeal to a broad readership, including researchers and teachers in the fields of infectious diseases, host pathogen interactions, plant and animal pathogenesis, and symbiosis.

Bacterial Protein Secretion Systems

Author : Laure Journet
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This volume details protocols that cover the broad arsenal of techniques used to study a secretion system from A to Z. Chapters focus on identifying and localizing the different subunits, defining interactions within subunits, monitoring conformational changes, purifying and imaging of large complexes, defining the assembly pathway by fluorescence microscopy and the role of energy during assembly and/or secretion, identifying secreted effectors as well as reporters to follow effector transport. 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, Bacterial Protein Secretion Systems: Methods and Protocol aims to provide techniques that are not restricted to the study of secretion systems but are also of specific interest for any researcher interested on multi-protein complexes of the bacterial cell envelope.

Protein Secretion in Bacteria

Author : Maria Sandkvist
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Protein transport into and across membranes is a fundamental process in bacteria that touches upon and unites many areas of microbiology, including bacterial cell physiology, adhesion and motility, nutrient scavenging, intrabacterial signaling and social behavior, toxin deployment, interbacterial antagonism and collaboration, host invasion and disruption, and immune evasion. A broad repertoire of mechanisms and macromolecular machines are required to deliver protein substrates across bacterial cell membranes for intended effects. Some machines are common to most, if not all bacteria, whereas others are specific to Gram-negative or Gram-positive species or species with unique cell envelope properties such as members of Actinobacteria and Spirochetes. Protein Secretion in Bacteria, authored and edited by an international team of experts, draws together the many distinct functions and mechanisms involved in protein translocation in one concise tome. This comprehensive book presents updated information on all aspects of bacterial protein secretion encompassing: Individual secretory systems–Sec, Tat, and T1SS through the newly discovered T9SS Mechanisms, structures, and functions of bacterial secretion systems Lipoprotein sorting pathways, outer membrane vesicles, and the sortase system Structures and roles of surface organelles, including flagella, pili, and curli Emerging technologies and translational implications Protein Secretion in Bacteria serves as both an introductory guide for students and postdocs and a ready reference for seasoned researchers whose work touches on protein export and secretion. This volume synthesizes the diversity of mechanisms of bacterial secretion across the microbial world into a digestible resource to stimulate new research, inspire continued identification and characterization of novel systems, and bring about new ways to manipulate these systems for biotechnological, preventative, and therapeutic applications.

Type IV Secretion in Gram Negative and Gram Positive Bacteria

Author : Steffen Backert
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Type IV secretion systems (T4SSs) are highly versatile membrane-associated transporter machines used by Gram-negative and Gram-positive bacteria to deliver substrate molecules to a large variety of target cells. This volume summarizes our current knowledge of the large variety and structural diversity of T4SSs in pathogenic Escherichia, Agrobacterium, Legionella, Coxiella, Bartonella, Helicobacter, Enterococcus and other species. Divided into 13 chapters contributed by leading experts, it presents findings that significantly enhance our understanding of how various pathogens manipulate host cell functions to trigger bacterial uptake, promote intracellular growth, suppress defense mechanisms and of how bacteria spread antibiotic resistances, thus facilitating bacterial colonization and disease development. The book is an invaluable source of information for researchers and clinicians.

Unusual Secretory Pathways From Bacteria to Man

Author : Karl Kuchler
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This book constitutes the first comprehensive discussion and collection of facts and functions of unconventional secretory pathways, some of which are of importance in human disease and pathology. The function of ABC transporters in these processes is also discussed. This comparison of common aspects and similarities in all living cells - from bacteria to man - is an excellent reference book with "textbook" character.

Protein Targeting

Author : Anthony Pubsley
File Size : 70.54 MB
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Protein Targeting reviews different aspects of protein targeting, including similarities and differences in the pathways involved. The early stages of protein export and secretion in prokaryotes and eukaryotes are examined, along with the targeting of mitochondrial and chloroplast proteins as well as some important differences in the biogenesis of the two organelles. Comprised of nine chapters, this book begins with an overview of terminology and basic principles of protein targeting, focusing on protein traffic in eukaryotic and bacterial cells. The reader is then introduced to the basic principles and techniques of protein targeting, including protein identification and posttranslational modification. Subsequent chapters deal with the early stages in the secretory pathway; later stages in the prokaryotic and eukaryotic secretory pathways; targeting of mitochondrial, chloroplast, and peroxisomal proteins; and targeting of nuclear proteins. The book also discusses endocytosis before concluding with a description of applications of protein targeting. This monograph will be of value to scientists and biotechnologists, as well as to students of cell biology, biochemistry, microbiology, and molecular biology.

Gene and Protein Evolution

Author : Jean-Nicolas Volff
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"Our way of understanding evolution has changed completely with the era of genomics, particularly since the emergence of comparative genomics, a discipline allowing the analysis of complete genomes and biological processes over vast periods of time. In this volume, internationally recognized experts present and discuss an update of the evolutionary processes at the onset of organismal diversification and complexity, and review the mechanisms leading to the acquisition of new traits and functions. Different levels of evolution are considered, from internal modules in genes and proteins to interactomes and biological networks, with integration of the influence of both the genomic environment and the ecological context. Particular emphasis will be given to the origin of novel genes and gene functions as well as to the evolutionary impact of the duplication of genetic information, with several chapters devoted to transposable elements. Providing an excellent update on gene and protein evolution, this book will be appreciated by researchers in biology and medicine, biology teachers and anyone interested in evolution and genomics."--Publisher's description.

Proteins Advances in Research and Application 2011 Edition

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Proteins: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Amino Acids, Peptides, and Proteins. The editors have built Proteins: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Amino Acids, Peptides, and Proteins in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Proteins: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at

Structural and Functional Relationships in Prokaryotes

Author : Larry Barton
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This new textbook on bacterial physiology is aimed at senior level students pursuing a one-semester course in the biology or microbiology curriculum. The text takes a balanced view of prokaryotic physiology, discussing both bioenergetics and bacterial metabolism in a way that establishes general principles and concepts and emphasizes throughout the information gained from model systems. The book also covers some experimental design issues, giving students an appreciation of the practical aspects and consequences of bacterial metabolism. It also stimulates students’ interests in future developments in the field by including discussions by five world-famous bacterial physiologists about future developments in the field.

Dynamics of the Bacterial Chromosome

Author : Wolfgang Schumann
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This book provides an unique overview on bacterial genetics, bacterial genome projects and gene technology and its applicaitons in biological and biomedical research and medicine. The author guides the reader up the front in research within the different fields of bacterial genetics, based mainly on results received with Escherichia coli and Bacillus subtilis.

New Bacterial Vaccines

Author : Ronald W. Ellis
File Size : 67.49 MB
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The text is focused upon unmet needs for bacterial vaccines. The increase in drug resistance among many bacterial species has increased the need for new bacterial vaccines. Moreover, and increased understanding of the immunobiology and molecular mechanisms of pathogenesis have helped to elucidate the type of immunity needed for protection as well as the appropriate vaccine strategy for achieving such immunity.

Protein Purification Protocols

Author : Paul Cutler
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This new edition of Protein Purification Protocols completely updates the existing protocols to reflect recent advances and adds the enormous new array of proteomic techniques for protein isolation and analysis. These cutting-edge techniques include not only two-dimensional gel electrophoresis for analysis and characterization, but also analytical chromatography for multidimensional separations of proteins and peptides, and mass spectrometry for isolating proteins.

Bacterial Evasion of Host Immune Responses

Author : Brian Henderson
File Size : 30.63 MB
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Comprehensive review of current research concerning how bacteria evade immunity and hence cause infection.

Principles of Bacterial Pathogenesis

Author : Eduardo A. Groisman
File Size : 62.9 MB
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Principles of Bacterial Pathogenesis presents a molecular perspective on a select group of bacterial pathogens by having the leaders of the field present their perspective in a clear and authoritative manner. Each chapter contains a comprehensive review devoted to a single pathogen. Several chapters include work from authors outside the pathogenesis field, providing general perspectives on the evolution, regulation, and secretion of virulence and determinants. Key Features * Explains the basic principles of bacterial pathogenesis * Covers diverse aspects integrating regulation, cellular microbiology and evolution of microbial disease of humans * Discusses current strategies for the identification of virulence determinants and the methods used by microbes to deliver virulence factors * Presents authoritative treatises of the major disease microorganisms

Dictionary of DNA and Genome Technology

Author : Paul Singleton
File Size : 63.92 MB
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DNA technology is evolving rapidly, with new methods and a fast-growing vocabulary. This unique dictionary offers current, detailed and accessible information on DNA technology to lecturers, researchers and students throughout the biomedical and related sciences. The third edition is a major update, with over 3000 references from mainstream journals and data from the very latest research – going well beyond the remit of most science dictionaries. It provides clear explanations of terms, techniques, and tests, including commercial systems, with detailed coverage of many important procedures and methods, and includes essay-style entries on many major topics to assist newcomers to the field. It covers topics relevant to medicine (diagnosis, genetic disorders, gene therapy); veterinary science; biotechnology; biochemistry; pharmaceutical science/drug development; molecular biology; microbiology; epidemiology; genomics; environmental science; plant science/agriculture; taxonomy; and forensic science.

Gene Transfer and Expression in Mammalian Cells

Author : S.C. Makrides
File Size : 84.44 MB
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The production of proteins in mammalian cells is an important tool in numerous scientific and commercial areas. For example, proteins for human therapy, vaccination or diagnostic applications are typically produced in mammalian cells. Gene cloning, protein engineering, biochemical and biophysical characterization of proteins also require the use of gene expression in mammalian cells. Other applications in widespread use involve screening of libraries of chemical compounds in drug discovery, and the development of cell-based biosensors. This book presents a state-of-the-art comprehensive coverage of the technical aspects of gene expression in mammalian cells, written by experienced scientists working at the forefront of the field.