Download or read book Gramicidin and Related Ion Channel Forming Peptides written by Derek J. Chadwick and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gramicidin channels have been studied intensively for more than 25 years. They serve as model transport systems for large protein ion channels, since it is difficult to glean high-resolution structural information on the latter. This book includes contributions from virtually all the major scientists studying gramicidin channels and is the only compilation of work in this field. It discusses crystallographic, spectroscopic, electrophysiological and computational studies, especially in the light of the recent availability of high-resolution structural data, and it compares these with insights derived from larger systems. As well as drawing together much new and exciting work in this field, it provides pointers to promising new research directions.
Download or read book Fighting Multidrug Resistance with Herbal Extracts Essential Oils and Their Components written by Mahendra Rai and published by Academic Press. This book was released on 2013-05-24 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fighting Multidrug Resistance with Herbal Extracts, Essential Oils and their Components offers scientists a single source aimed at fighting specific multidrug-resistant (MDR) microorganisms such as bacteria, protozoans, viruses and fungi using natural products. This essential reference discusses herbal extracts and essential oils used or under investigation to treat MDR infections, as well as those containing antimicrobial activity that could be of potential interest in future studies against MDR microorganisms. The need to combat multidrug-resistant microorganisms is an urgent one and this book provides important coverage of mechanism of action, the advantages and disadvantages of using herbal extracts, essential oils and their components and more to aid researchers in effective antimicrobial drug discovery - Addresses the need to develop safe and effective approaches to coping with resistance to all classes of antimicrobial drugs - Provides readers with current evidence-based content aimed at using herbal extracts and essential oils in antimicrobial drug development - Includes chapters devoted to the activity of herbal products against herpes, AIDS, tuberculosis, drug-resistant cancer cells and more
Download or read book Ionic Channels of Excitable Membranes written by Bertil Hille and published by Sinauer Associates, Incorporated. This book was released on 1992 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new, fully revised and expanded edition of Ionic Channels of Excitable Membranes includes new chapters on fast chemical synapses, modulation through G protein coupled receptors and second messenger systems, molecules cloning, site directed mutagenesis, and cell biology. It begins with the classical biophysical work of Hodgkin and Huxley and then weaves a description of the known ionic channels together with their biological functions. The book continues by developing the physical and molecular principles needed for explaining permeation, gating, pharmacological modification, and molecular diversity, and ends with a discussion of channel evolution. Ionic Channels of Excitable Membranes is written to be accessible and interesting to biological and physical scientists of all kinds.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The World of Peptides written by Theodor Wieland and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost two centuries ago proteins were recognized as the primary materials (proteios = primary) oflife, but the significance and wide role of peptides (from pepsis = digestion) in practically all life pro cesses has only become apparent in the last few decades. Biologi cally active peptides are now being discovered at rapid intervals in the brain and in other organs including the heart, in the skin of amphibians and many other tissues. Peptides and peptide-like compounds are found among toxins and antibiotics. It is unlikely that this process, an almost explosive broadening of the field, will come to a sudden halt. By now it is obvious that Nature has used the combination of a small to moderate number of amino acids to generate a great variety of agonists with specific and often highly sophisticated functions. Thus, peptide chemistry must be regarded as a discipline in its own right, a major branch of biochemistry, fairly separate from the chemistry of proteins. Because of the important role played by synthesis both in the study and in the practical preparation of peptides, their area can be considered as belonging to bio-organic chemistry as well. The already overwhelming and still increasing body of know ledge renders an account of the history of peptide chemistry more and more difficult. It appears therefore timely to look back, to take stock and to recall the important stages in the development of a new discipline.
Download or read book TRP Ion Channel Function in Sensory Transduction and Cellular Signaling Cascades written by Wolfgang B. Liedtke, MD, PH.D. and published by CRC Press. This book was released on 2006-09-29 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first TRP ion channel was discovered in Drosophila melanogaster in 1989, the progress made in this area of signaling research has yielded findings that offer the potential to dramatically impact human health and wellness. Involved in gateway activity for all five of our senses, TRP channels have been shown to respond to a wide range of st
Download or read book Bacterial Exotoxins How Bacteria Fight the Immune System written by Inka Sastalla and published by Frontiers Media SA. This book was released on 2016-10-07 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial pathogenicity factors are functionally diverse. They may facilitate the adhesion and colonization of bacteria, influence the host immune response, assist spreading of the bacterium by e.g. evading recognition by immune cells, or allow bacteria to dwell within protected niches inside the eukaryotic cell. Exotoxins can be single polypeptides or heteromeric protein complexes that act on different parts of the cells. At the cell surface, they may insert into the membrane to cause damage; bind to receptors to initiate their uptake; or facilitate the interaction with other cell types. For example, bacterial superantigens specifically bind to major histocompatibility complex (MHC) II molecules on the surface of antigen presenting cells and the T cell receptor, while cytolysins cause pore formation. For intracellular activity, exotoxins need to be translocated across the eukaryotic membrane. Gram-negative bacteria can directly inject effector proteins in a receptor-independent manner by use of specialized needle apparatus such as bacterial type II, III, or type IV secretion systems. Other methods of translocation include the phagocytic uptake of bacteria followed by toxin secretion, or receptor-mediated endocytosis which allows the targeting of distinct cell types. Receptor-based uptake is initiated by the binding of heteromeric toxin complexes to the cell surface and completed by the translocation of the effector protein(s) across the endosomal membrane. In the cytosol, toxins interact with specific eukaryotic target proteins to cause post-translational modifications that often result in the manipulation of cellular signalling cascades and inflammatory responses. It has become evident that the actions of some bacterial toxins may exceed their originally assumed cytotoxic function. For example, pore-forming toxins do not only cause cytolysis, but may also induce autophagy, pyroptosis, or activation of the MAPK pathways, resulting in adjustment of the host immune response to infection and modification of inflammatory responses both locally and systemically. Other recently elucidated examples of the immunomodulatory function of cell death-inducing exotoxins include TcdB of Clostridium difficile which activates the inflammasome through modification of cellular Rho GTPases, or the Staphyloccocus d-toxin which activates mast cells. The goal of this research topic was to gather current knowledge on the interaction of bacterial exotoxins and effector proteins with the host immune system. The following 16 research and review articles in this special issue describe mechanisms of immune modification and evasion and provide an overview over the complexity of bacterial toxin interaction with different cells of the immune system.
Download or read book Channels Carriers and Pumps written by Wilfred D. Stein and published by Elsevier. This book was released on 2014-12-09 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the principles of membrane transport: How molecules and ions move across the cell membrane by simple diffusion and by making use of specialized membrane components (channels, carriers, and pumps). The text emphasizes the quantitative aspects of such movement and its interpretation in terms of transport kinetics. Molecular studies of channels, carriers, and pumps are described in detail as well as structural principles and the fundamental similarities between the various transporters and their evolutionary interrelationships. The regulation of transporters and their role in health and disease are also considered. - Provides an introduction to the properties of transport proteins: channels, carriers, and pumps - Presents up-to-date information on the structure of transport proteins and on their function and regulation - Includes introductions to transport kinetics and to the cloning of genes that code transport proteins - Furnishes a link between the experimental basis of the subject and theoretical model building
Download or read book Membrane Organization and Dynamics written by Amitabha Chattopadhyay and published by Springer. This book was released on 2017-12-06 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together information on membrane organization and dynamics from a variety of spectroscopic, microscopic and simulation approaches, spanning a broad range of time scales. The implication of such dynamic information on membrane function in health and disease is a topic of contemporary interest. The chapters cover various aspects of membrane lipid and protein dynamics, explored using a battery of experimental and theoretical approaches. The synthesis of information and knowledge gained by utilizing multiple approaches will provide the reader with a comprehensive understanding of the underlying membrane dynamics and function, which will help to develop robust dynamic models for the understanding of membrane function in healthy and diseased states. In the last few years, crystal structures of an impressive number of membrane proteins have been reported, thanks to tremendous advances in membrane protein crystallization techniques. Some of these recently solved structures belong to the G protein-coupled receptor (GPCR) family, which are particularly difficult to crystallize due to their intrinsic flexibility. Nonetheless, these static structures do not provide the necessary information to understand the function of membrane proteins in the complex membrane milieu. This volume will address the dynamic nature of membrane proteins within the membrane and will provide the reader with an up-to date overview of the theory and practical approaches that can be used. This volume will be invaluable to researchers working in a wide range of scientific areas, from biochemistry and molecular biology to biophysics and protein science. Students of these fields will also find this volume very useful. This book will also be of great use to those who are interested in the dynamic nature of biological processes.
Download or read book Fmoc Solid Phase Peptide Synthesis written by W. Chan and published by OUP Oxford. This book was released on 1999-12-16 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of Atherton and Sheppard's volume, the technique of Fmoc solid-phase peptide synthesis has matured considerably and is now the standard approach for the routine production of peptides. The focus of this new volume is much broader, and covers the essential procedures.
Download or read book Cell Physiology Source Book written by Nicholas Sperelakis and published by Elsevier. This book was released on 2012-12-02 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative book gathers together a broad range of ideas and topics that define the field. It provides clear, concise, and comprehensive coverage of all aspects of cellular physiology from fundamental concepts to more advanced topics. The Third Edition contains substantial new material. Most chapters have been thoroughly reworked. The book includes chapters on important topics such as sensory transduction, the physiology of protozoa and bacteria, the regulation of cell division, and programmed cell death. - Completely revised and updated - includes 8 new chapters on such topics as membrane structure, intracellular chloride regulation, transport, sensory receptors, pressure, and olfactory/taste receptors - Includes broad coverage of both animal and plant cells - Appendixes review basics of the propagation of action potentials, electricity, and cable properties - Authored by leading experts in the field - Clear, concise, comprehensive coverage of all aspects of cellular physiology from fundamental concepts to more advanced topics
Download or read book Molecular and Nano Tubes written by Oliver Hayden and published by Springer Science & Business Media. This book was released on 2011-08-04 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular- and Nano-Tubes summarizes recent advancements in the synthesis, fabrication and applications of tubular structures. An interdisciplinary overview of innovative science focused on tubular structures is provided. The reader is offered an overview of the different fields that molecular and nano tubes appear in, in order to learn the fundamental basics as well as the applications of these materials. This book also: Shows how nanotechnology creates novel materials by crossing the barriers between biology and material science, electronics and optics, medicine and more Demonstrates that tubes are a fundamental element in nature and used in disparate applications such as ion channels and carbon nanotubes Molecular- and Nano-Tubes is an ideal volume for researchers and engineers working in materials science and nanotechnology.
Download or read book Peptides written by Bernd Gutte and published by Elsevier. This book was released on 1995-10-24 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, research has shown the importance of peptides in neuroscience, immunology, and cell biology. Active research programs worldwide are now engaged in developing peptide-based drugs and vaccines using modification of natural peptides and proteins, design of artificial peptides and peptide mimetics, and screening of peptide and phage libraries. In this comprehensive book, the authors discuss peptide synthesis and application within the context of their increasing importance to the pharmaceutical industry. Peptides: Synthesis, Structures, and Applications explores the broad growth of information in modern peptide synthetic methods and the structure-activity relationships of synthetic polypeptides. - The history of peptide chemistry - Amide formation, deprotection, and disulfide formation in peptide synthesis - Solid-phase peptide synthesis - a-helix formation by peptides in water - Stability and dynamics of peptide conformation - An overview of structure-function studies of peptide hormones - Neuropeptides:peptide and nonpeptide analogs - Reversible inhibitors of serine proteinases - Design of polypeptides - Current capabilities and future possibilities of soluble chemical combinatorial libraries - Epitope mapping with peptides - Synthesis and applications of branched peptides in immunological methods and vaccines
Download or read book Prokaryotic Metabolism and Physiology written by Byung Hong Kim and published by Cambridge University Press. This book was released on 2019-05-16 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensive and up-to-date review of key metabolic processes in bacteria and archaea and how metabolism is regulated under various conditions.
Download or read book Patch Clamp Electrophysiology written by Mark Dallas and published by Humana. This book was released on 2021-11-13 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes a range of standard and novel methodological approaches used to probe ion channel function across different modalities. Chapters guide readers through methods and protocols from an introduction to the decades old patch clamp method for the ion channel neophyte to more complex, recent protocol advances, such as optogenetics. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, application details for both the expert and non-expert reader, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Patch Clamp Electrophysiology: Methods and Protocols aims to be a reference guide for current and future ion channel physiologists.
Download or read book Peptides written by Norbert Sewald and published by Wiley-VCH Verlag GmbH. This book was released on 2002-01-01 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peptides play a decisive role in many physiological processes, whether as neurotransmitters, hormones or antibiotics. The rapid developments in peptide research over the past few decades make it almost impossible for newcomers to gain an overview. This means an easily comprehensible yet concise introduction is vital. This unique work covers all the important aspects of this wide-ranging field in one handy volume. On the basis of the fundamental chemical and structural properties of peptides, this reference runs the gamut from analysis, the occurrence and biological importance of peptides, via chemical, biochemical and genetic methods of peptide synthesis, right up to peptide libraries, peptide design and their role in drug research. Yet this book offers much more than a mere overview of the latest level of research. An encyclopedic appendix with valuable data on more than 500 biological relevant peptides and proteins, a comprehensive register and details of further literature references make this the ideal reference for all questions regarding peptide research. For newcomers and specialists alike. On the basis of the fundamental chemical and structural properties of peptides, this reference runs the gamut from analysis, the occurrence and biological importance of peptides.
Download or read book Piezo Channels written by and published by Academic Press. This book was released on 2017-07-17 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezo Channels, Volume 79, the latest volume in the Current Topics in Membranes series provides the necessary membrane research to assist readers in discovering the current state of a particular field and future directions. New chapters in the updated volume include A Tour de Force: The Discovery, Properties, and Function of Piezo Channels, Piezo1 Channels in Vascular Development and the Sensing of Shear Stress, the Origin of the Force: The Force-From-Lipids Principle Applied to Piezo Channels, Genetic Diseases of PIEZO1 and PIEZO2 Dysfunction, and The Structural Basis for Sensing by the Piezo1 Protein. Users of this series will find an up-to-date presentation of the current knowledge in the field of Piezo Channels. - Written by leading experts in the field - Contains original material, both textual and illustrative, that make it a very relevant reference - Presented in a very comprehensive manner - Ideal reference for both researchers in the field and general readers who will find this book to be relevant and up-to-date
