[PDF] Vectorial Transport Of Proteins Into And Across Membranes eBook

Author :
Publisher : Academic Press
Page : 461 pages
File Size : 15,76 MB
Release : 1991-10-11
Category : Science
ISBN : 0080859321

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This is the third volume in this series covering protein translocation within and between cells. Volumes 31 and 32, Vesicular Transport, Parts A and B, treated techniques for eukaryotic cells available as of 1989. Vectorial Transport of Proteins into and across Membranes, brings together new methods and new topics as of 1991. Highlights include use of anti-idiotype antibodies, gene fusions, transcription, crosslinking, pulse-labeling, and reconstitution. Describes contemporary approaches for studying protein transport, protein topology and organelle biogenesis Covers methods from pre-eminent laboratories including: In vitro and in vivo investigations; Biochemical and immunological techniques; Prokaryote, chloroplast, mitochondria, peroxisome, and rough endoplasmic reticulum membranes

Author : Alan Tartakoff
Publisher : Academic Press
Page : 537 pages
File Size : 44,62 MB
Release : 2012-12-02
Category : Science
ISBN : 0323146791

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Laboratory Methods in Vesicular and Vectorial Transport describes the procedures used to study the mechanisms of vesicular transport along the secretory and endocytic paths, including electron microscopy, autoradiography, and methods associated with cyto- and immunocytochemistry, genetics, and biochemistry. It investigates vectorial transport to the cisternal space of the rough endoplasmic reticulum (ER), as well as protein translocation across the ER, strategies for gaining access to the cytoplasm, cell-free analysis of vesicle fusion, the structure of glycoproteins, and the use of cell systems for analysis of vesicular traffic. Organized into seven parts encompassing 20 chapters, this volume begins with an overview of protein topology in the ER and the use of cross-linking methods to probe the molecular environment of translocating polypeptide chains. It then discusses the reconstitution of secretory protein translocation from detergent-solubilized rough microsomes; the use of anti-idiotype antibodies to characterize protein-protein interactions; the use of perforated cells to elucidate intracellular membrane transport; delivery of macromolecules into cells expressing a viral membrane fusion protein; and digitonin permeabilization procedures for studying endosome acidification and function. The reader is also introduced to reconstitution of intracellular vesicle fusion in a cell-free system after receptor-mediated endocytosis; immunoisolation using magnetic solid supports; endosome and lysosome purification by free-flow electrophoresis; remodeling of glycoprotein oligosaccharides after endocytosis; and replica plating of animal cells. This book will interest students, researchers, geneticists, biochemists, and cell biologists.

Author : Wilfred Stein
Publisher : Elsevier
Page : 704 pages
File Size : 10,81 MB
Release : 2012-12-02
Category : Science
ISBN : 0323143202

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Transport and Diffusion across Cell Membranes is a comprehensive treatment of the transport and diffusion of molecules and ions across cell membranes. This book shows that the same kinetic equations (with appropriate modification) can describe all the specialized membrane transport systems: the pores, the carriers, and the two classes of pumps. The kinetic formalism is developed step by step and the features that make a system effective in carrying out its biological role are highlighted. This book is organized into six chapters and begins with an introduction to the structure and dynamics of cell membranes, followed by a discussion on how the membrane acts as a barrier to the transmembrane diffusion of molecules and ions. The following chapters focus on the role of the membrane's protein components in facilitating transmembrane diffusion of specific molecules and ions, measurements of diffusion through pores and the kinetics of diffusion, and the structure of such pores and their biological regulation. This book methodically introduces the reader to the carriers of cell membranes, the kinetics of facilitated diffusion, and cotransport systems. The primary active transport systems are considered, emphasizing the pumping of an ion (sodium, potassium, calcium, or proton) against its electrochemical gradient during the coupled progress of a chemical reaction while a conformational change of the pump enzyme takes place. This book is of interest to advanced undergraduate students, as well as to graduate students and researchers in biochemistry, physiology, pharmacology, and biophysics.

Author : Graça Soveral
Publisher : Frontiers Media SA
Page : 333 pages
File Size : 22,42 MB
Release : 2020-01-03
Category :
ISBN : 2889633578

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Transporters and channels are membrane proteins that mediate the traffic of metabolites, water and ions across biological membranes. Membrane transport proteins are crucial to maintain homeostasis and assure cell survival upon intracellular or environmental stress. A failure of any of these transport systems may have dramatic consequences for cell function. There is increasing evidence that membrane transport proteins play important functions in healthy conditions and that their absence or dysfunction may cause diseases. In recent years much attention has been paid to diseases resulting from defective transporters (“carrier diseases”) and ion channels (“channelopathies”). Very interestingly, altered expression of transporters has been described in several human pathologies. On this basis, many transport proteins are well acknowledged targets for drugs. Many others are involved in drug delivery and disposition and/or are considered potential targets. Others are off-targets for drugs and then, are responsible for side effects. Thus, membrane protein drug discovery is now an emerging field where the search for physiological mechanisms of regulation and for chemical compounds as modulators of transport activity, present new opportunities for drug development and for new therapies. This Research Topic addresses the latest research advances in membrane transport proteins, stimulating future research on these important protein families.

Author : Wilfred D. Stein
Publisher : Elsevier
Page : 423 pages
File Size : 40,7 MB
Release : 2014-12-09
Category : Science
ISBN : 0124165834

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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

Author : North Atlantic Treaty Organization. Scientific Affairs Division
Publisher : IOS Press
Page : 290 pages
File Size : 21,21 MB
Release : 2000
Category : Biological transport
ISBN : 9781586030087

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This text concentrates on the following specific topics: the dynamic character of lipids and proteins in biological membranes; the existence of specific domains in membranes including their visualisation; the molecular mechanisms of intracellular transport of membrane constituents and the involvement of lipid-protein interactions in these processes; protein assembly; structure and folding and transport through membranes; and the intracellular sorting and targeting of individual membrane components as well as different organelles."

Author : Stephen A. Baldwin
Publisher : OUP Oxford
Page : 343 pages
File Size : 49,54 MB
Release : 2000-06-15
Category : Science
ISBN : 0191565822

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Membrane Transport is targeted towards researchers with an interest in the mechanism of solute transport across biological membranes. Its scope is broad, ranging from the techniques required to study transport itself, through the expression, purification and reconstitution of transporters, to techniques for investigation of their structures. As such, it not only proves the necessary technical grounding for newcomers to the field, but should also be of value to "old-hands" wishing to get up to date with recent developments in these areas. While some of the approaches described require sophisticated equipment (e.g. a stopped-flow fluorimeter), most of the protocols can be implemented in any well- found laboratory. Preparation of this volume comes at a time when a result of genome sequencing our knowledge of membrane transporter sequences is far outstripping our understanding of their molecular mechanisms. Our hope is that this book will help future researchers to redress this imbalance.

Author : Thomas E. Andreoli
Publisher : Springer Science & Business Media
Page : 399 pages
File Size : 37,89 MB
Release : 2012-12-06
Category : Medical
ISBN : 1468454048

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Membrane Transport Processes in Organized Systems is a softcover book containing portions of Physiology of Membrane Disorders (Second Edition). The parent volume contains six major sections. This text encompasses the fourth and fifth sections: Transport Events in Single Cells and Transport in Epithelia: Vectorial Transport through Parallel Arrays. We hope that this smaller volume, which deals with transport processes in single cells and in organized epithelia, will be helpful to individuals interested in general physiology, transport in single cells and epithelia, and the methods for studying those transport processes. THOMAS E. ANDREOLI JOSEPH F. HOFFMAN DARRELL D. FANESTIL STANLEY G. SCHULTZ Vll Preface to the Second Edition The second edition of Physiology of Membrane Disorders represents an extensive revision and a considerable expansion ofthe first edition . Yet the purpose of the second edition is identical to that of its predecessor, namely, to provide a rational analysis of membrane transport processes in individual membranes, cells, tissues, and organs, which in tum serves as a frame of reference for rationalizing disorders in which derangements of membrane transport processes play a cardinal role in the clinical expression of disease. As in the first edition, this book is divided into a number of individual, but closely related, sections. Part V represents a new section where the problem of transport across epithelia is treated in some detail. Finally, Part VI, which analyzes clinical derangements, has been enlarged appreciably.