A Structure Function Toolbox For Membrane Transporter And Channels

A Structure-Function Toolbox for Membrane Transporter and Channels, Volume 594, a new release in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. New chapters in the updated serial include Cryo-EM on membrane proteins embedded in nanodics, Solid-Supported membrane-based electrophysiology on membrane transporters and channels, Saposin-lipoprotein scaffolds for structure determination of membrane transporters and channels, Single-molecule FRET on transporters, Dynamics of channels and transporters investigated by NMR, Structure-function studies on channels and transporters, and a section on MemStar, a new GFP-based expression and purification system for transporters and channels. Continues the legacy of this premier serial with quality chapters authored by leaders in the field Covers membrane transporter and channels

Studies of membrane transporters have had great impact on our und- standing human diseases and the design of effective drugs. About 30% of current clinically marketed drugs are targeting membrane transporters or channels. Membrane Transporters: Methods and Protocols provides various practical methodologies for the ongoing research on membrane transporters. To provide readers the most up-to-date information, several emerging fields and methodologies are embraced in this book, including pharmacogenomics, bioin-formatics, and microarray technology. Pharmacogenomics studies of membrane transporters are useful in drug discovery and in predicting drug responses in the clinic. In this volume, the current status of pharma- genomics studies of transporters is reviewed and research methodologies in this field are described. Transporter classification is important in studying the structure and function of membrane transporters and has thus triggered intensive interest in recent years. Membrane Transporters: Methods and Protocols provides a systematic classification of all transmembrane transport proteins found in living org- isms on Earth. This classification system will be helpful for further studies on various aspects of membrane transporters, especially for such large-scale gene expression studies as those employing microarray technologies. Bioinformatics is frequently used in transporter studies and has become indispensable for all kinds of research methods. Commonly used bio- formatics methods, such as databases and tools for sequence analysis and - tif studies, are explained in order to facilitate membrane transporters research. Because of heterogeneous sources and tremendous amounts of data, data in- gration has become one of the most important issues in transporter studies.

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

Advances in Biomolecular EPR, Volume 666 in the Methods of Enzymology series, highlights new advances in the field, with this new volume presenting interesting chapters on topics including Magnetic Resonance Characterization of Physiologically Important Metal Ion Binding Sites in the Prion and Related Proteins, The catalytic role of metal-radical/protein-based radicals in heme enzymes, Rigid Cu2+-based spin labels for the study of higher-order DNA G-quadruplex structures, Orthogonal spin labeling and membrane proteins: increasing the information content and going towards in cell applications, Spectroscopic investigation of mono- and di-Mn-containing centers in biochemistry with an emphasis on application of paramagnetic resonance techniques, and more. Additional chapters cover In Vivo pO2 Imaging of Tumors: Oxymetry with Very Low-Frequency Electron Paramagnetic Resonance, an Update, EPR contributions to understanding molybdenum-containing enzymes, EPR spectroscopy of Type I reaction centers, Characterization of a substrate-derived radical in the NosN reaction during the biosynthesis of nosiheptide, and much more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in Methods in Enzymology series Includes the latest information on Advances in Biomolecular EPR

This book provides a molecular view of membrane transport by means of numerous biochemical and biophysical techniques. The rapidly growing numbers of atomic structures of transporters in different conformations and the constant progress in bioinformatics have recently added deeper insights. The unifying mechanism of energized solute transport across membranes is assumed to consist of the conformational cycling of a carrier protein to provide access to substrate binding sites from either side of a cellular membrane. Due to the central role of active membrane transport there is considerable interest in deciphering the principles of one of the most fundamental processes in nature: the alternating access mechanism. This book brings together particularly significant structure-function studies on a variety of carrier systems from different transporter families: Glutamate symporters, LeuT-like fold transporters, MFS transporters and SMR (RND) exporters, as well as ABC-type importers. The selected examples impressively demonstrate how the combination of functional analysis, crystallography, investigation of dynamics and computational studies has made it possible to create a conclusive picture or more precisely, “a molecular movie”. Although we are still far from a complete molecular description of the alternating access mechanism, remarkable progress has been made from static snapshots towards membrane transport dynamics.

When the six of us gathered to start planning for what was to be the Third Edition of Physiology of Membrane Disorders, it was clear that since 1986, when the Second Edition appeared, the field had experienced the dawning of a new era dominated by a change in focus from phenomenology to underlying mechanisms propelled by the power of molecular biology. In 1985, detailed molecular information was available for only three membrane transporters: the lac permease, bacterial rhodopsin, and the acetylcholine receptor. During the decade that has since elapsed, almost all of the major ion channels and transport proteins have been cloned, sequenced, mutagenized, and expressed in homologous as well as heterologous cells. Few, if any, of the transporters that were identified during the previous era have escaped the probings of the new molecular technologies and, in many instances, considerable insight has been gained into their mechanisms of function in health and disease. Indeed, in some instances novel, unexpected transporters have emerged that have yet to have their functions identified. The decision to adopt the new title Molecular Biology of Membrane Transport Disorders was a natural outgrowth of these considerations.

Studies of membrane transporters have had great impact on our und- standing human diseases and the design of effective drugs. About 30% of current clinically marketed drugs are targeting membrane transporters or channels. Membrane Transporters: Methods and Protocols provides various practical methodologies for the ongoing research on membrane transporters. To provide readers the most up-to-date information, several emerging fields and methodologies are embraced in this book, including pharmacogenomics, bioin-formatics, and microarray technology. Pharmacogenomics studies of membrane transporters are useful in drug discovery and in predicting drug responses in the clinic. In this volume, the current status of pharma- genomics studies of transporters is reviewed and research methodologies in this field are described. Transporter classification is important in studying the structure and function of membrane transporters and has thus triggered intensive interest in recent years. Membrane Transporters: Methods and Protocols provides a systematic classification of all transmembrane transport proteins found in living org- isms on Earth. This classification system will be helpful for further studies on various aspects of membrane transporters, especially for such large-scale gene expression studies as those employing microarray technologies. Bioinformatics is frequently used in transporter studies and has become indispensable for all kinds of research methods. Commonly used bio- formatics methods, such as databases and tools for sequence analysis and - tif studies, are explained in order to facilitate membrane transporters research. Because of heterogeneous sources and tremendous amounts of data, data in- gration has become one of the most important issues in transporter studies.