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In recent years it has become evident that transport processes across membranes play a crucial role in many metabolic systems. The activities of these transport processes often determine the physiology of the organisms.This book presents a state of the art review on the analysis of a wide variety of transport systems from bacteria and eukaryotic cells. A selection has been made of those systems that have been studied at the molecular level with special emphasis paid to the energetic and other biophysical properties. The different classes of transport systems are presented in the following: primary transport, secondary transport, phosphotransferase systems, channels and porines and macromolecular transport. Within each class of transporters several systems are presented by the leading experts in the field, which has resulted in a very broad overview of transport processes in biological cells. In this way the differences in the mechanisms used for translocation become evident while on the other hand features common to the different transport systems are revealed.
The focus of food science and technology has shifted from previous goals of improving food safety and enhancing food taste toward providing healthy and functional foods. Today's consumers desire foods that go beyond basic nutrition-foods capable of promoting better health, or even playing a disease-prevention role. To meet this need for innovation,
Because our chemical environment affects our physical and mental well-being, it is a matter of increasing concern and is therefore attracting much research effort. This timely collection of essays highlights current developments in the field of environmental toxicology. Chapters analyze the carcinogenic, mutagenic, genotoxic, and neurotoxic effects of both anthropogenic and natural toxins in the soil, air, and water around us, as well as in our workplace and diet. The book also examines the effects of toxins on other organisms, as well as the techniques, policies, and management strategies employed in studying and controlling environmental pollutants. It will be an essential reference to a variety of personnel in environmental studies and public health.
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.
Ch. 1. Molecular behavior in biological cells : the bacterial cytoplasm as a model system / Adrian H. Elcock and Andrew S. Thomas -- ch. 2. The light-harvesting apparatus in purple photosynthetic bacteria : introduction to a quantum biological device / Johan Strumpfer [und weitere] -- ch. 3. DNA polymerases : structure, function, and modeling / Tamar Schlick -- ch. 4. Information processing by nanomachines : decoding by the ribosome / Karissa Y. Sanbonmatsu, Scott C. Blanchard and Paul C. Whitford -- ch. 5. Chaperonins : the machines which fold proteins / Del Lucent, Martin C Stumpe and Vijay S Pande -- ch. 6. Muscle and myosin / Ronald S. Rock -- ch. 7. Protein kinases : phosphorylation mac...
While lactic acid-producing fermentation has long been used to improve the storability, palatability, and nutritive value of perishable foods, only recently have we begun to understand just why it works. Since the publication of the third edition of Lactic Acid Bacteria: Microbiological and Functional Aspects, substantial progress has been made in
Genetic Engineering, Volume 25 contains discussions of contemporary and relevant topics in genetics, including: - Genotyping by Mass Spectrometry; - Development of Targeted Viral Vectors for Cardiovascular Gene Therapy; - Practical Applications of Rolling Circle Amplification of DNA Templates; - Bacterial ION Channels; - Applications of Plant Antiviral Proteins; - The Bacterial Scaffoldin: Structure, Function and Potential Applications in the Nanosciences. This principles and methods approach to genetics and genetic engineering is essential reading for all academics, bench scientists, and industry professionals wishing to take advantage of the latest and greatest in this continuously emerging field.
Advances in Planar Lipid Bilayers and Liposomes, Volume 9, continues to include invited chapters on a broad range of topics, covering both main arrangements of the reconstituted system, namely planar lipid bilayers and spherical liposomes. The invited authors present the latest results in this exciting multidisciplinary field of their own research group. Many of the contributors working in both fields over many decades were in close collaboration with the late Prof. H. Ti Tien, the founding editor of this book series. There are also chapters written by some of the younger generation of scientists included in this series. This volume keeps in mind the broader goal with both systems, planar lipid bilayers and spherical liposomes, which is the further development of this interdisciplinary field worldwide. - Incorporates contributions from newcomers and established and experienced researchers - Explores the planar lipid bilayer systems and spherical liposomes from both theoretical and experimental perspectives - Serves as an indispensable source of information for new scientists
A precise analysis of biogenic amines is important as an indicator of food freshness or spoilage that can cause serious toxicity. This book provides comprehensive background information on biogenic amines and their occurrence in various foods and drinks such as fermented and non-fermented sausages and fish products, cheeses, vegetables and beverages, e.g. beer, cider and wine. It gives a detailed description of both the established analytical methods and the emerging technologies for the analysis of them. As the first book on the detection of biogenic amines in all types of food, it provides help to get a better understanding of the risks associated with biogenic amines and how to avoid them. It serves as an excellent and up-to-date reference for food scientists, food chemists and food safety professionals.
The development of molecular biological techniques and their application in the field has given a new dimension to the area of membrane transport. The combination of biochemical (site-specific reagents), molecular biological (site-directed mutagenesis) and genetic approaches of which this volume gives numerous examples in combination with biophysical techniques as X-ray analysis and NMR will eventually lead to a complete elucidation of the mechanism of action of these transport proteins.Although impossible to give a comprehensive overview of this rapidly expanding field, the expert contributors discuss: pumps involved in primary active transport, carriers which transport metabolites, and channels which allow selective passive transport of particular ions.This volume is ideal for teachers, students and investigators in this field, and will lead to further progress in our understanding of this fascinating field.