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Molecular Simulations And Biomembranes

Author: Mark S. P. Sansom
Publisher: Royal Society of Chemistry
ISBN: 0854041893
Size: 74.41 MB
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The need for information in the understanding of membrane systems has been caused by three things - an increase in computer power; methodological developments and the recent expansion in the number of researchers working on it worldwide. However, there has been no up-to-date book that covers the application of simulation methods to membrane systems directly and this book fills an important void in the market. It provides a much needed update on the current methods and applications as well as highlighting recent advances in the way computer simulation can be applied to the field of membranes and membrane proteins. The objectives are to show how simulation methods can provide an important contribution to the understanding of these systems. The scope of the book is such that it covers simulation of membranes and membrane proteins, but also covers the more recent methodological developments such as coarse-grained molecular dynamics and multiscale approaches in systems biology. Applications embrace a range of biological processes including ion channel and transport proteins. The book is wide ranging with broad coverage and a strong coupling to experimental results wherever possible, including colour illustrations to highlight particular aspects of molecular structure. With an internationally respected list of authors, its publication is timely and it will prove indispensable to a large scientific readership.

Biomembrane Frontiers

Author: Thomas Jue
Publisher: Springer Science & Business Media
ISBN: 160761314X
Size: 57.74 MB
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This is the second book in the Handbook of Modern Biophysics series, dedicated to fundamental topics and new applications in biophysics. This book on biomembranes covers theory and application and includes problem sets, references and guides for further study.

Biomembrane Structures

Author: Parvez I. Haris
Publisher: IOS Press
ISBN: 9789051993233
Size: 80.48 MB
Format: PDF, ePub
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Biological membranes play a significant role in a range of biological processes such as ion-transport and signal transduction. Over the years much effort has been devoted towards developing an understanding of biomembrane structure. The study of this subject is now reaching an important stage. This is because at last the full three-dimensional structure of certain membrane proteins is beginning to be resolved. In the past three-dimensional structures of membrane proteins were difficult to obtain as only two dimensional crystals were available. In recent years satisfactory crystals have been obtained and X-ray diffraction techniques have been applied. This has led to the three dimensional structures of the photosynthetic reaction centres, porins and more recently the structure of cytochrome oxidase. Of course not all membrane proteins are readily crystallisable and some are not even available in sufficient quantities to obtain the necessary crystals or to carry out biophysical experiments. In some cases e.g. the voltage-gated potassium ion channel membrane proteins their structure has been proposed mainly on the basis of molecular biology methods. This has prompted the search for alternative approaches for characterising biomembrane structure. Molecular biological studies are providing a wealth of information on a number of different membrane proteins. Combining the information derived from such studies with molecular modelling is becoming extremely useful for relating structure to function. Development of other approaches include synthesis and structure- function analysis of peptides corresponding to functionally important domains of membrane proteins. This book presents a series of Chapters discussing how a combination of molecular biological, biophysical and theoretical (molecular modelling) techniques are helping us to obtain a much clearer picture of biomembrane structure. After an introductory Chapter on the Principles of membrane Protein Structure, the book is divided into two sections; one dealing with crystallographic approaches and the other non-crystallographic approaches such as NMR, AFM, SPR and FTIR spectroscopy. Chapters dealing with the recently solved crystal structure of cytochrome oxidase and bacteriorhodopsin are presented. The book contains contributions from leading membrane scientists describing their latest studies. It provides an up to date coverage of the developments in the field of biomembranes with particular emphasis on membrane proteins.

Spectroscopy Of Biological Molecules Modern Trends

Author: P. Carmona
Publisher: Springer Science & Business Media
ISBN: 9780792346852
Size: 37.70 MB
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The 1997 European Conference on Spectroscopy of Biological Molecules (ECSBM) is the seventh in a biennial series of conferences devoted to the applications of molecular spectroscopy to biological molecules and related systems. The interest of these conferences rests mainly on the relationship between the structure and physiological activity of biological molecules and related systems of which these molecular species form part. This volume ofECSBM contains articles prepared by the invited lecturers and those making poster presentations at the seventh ECSBM. The reader will find mainly applications of vibrational spectroscopy to protein structure and dynamics, biomembranes, molecular recognition, nucleic acids and other biomolecules and biological systems containing specific chromophors. Biomedical applications of vibrational spectroscopy are expanding rapidly. On the other hand, a significant number of the papers describe applications of other methods, such as NMR, circular dichroism, optical absorption and fluorescence, X-ray absorption and diffraction and other theoretical methods. One aim has been to achieve a well balanced, critically comparative review of recent progress in the field of biomolecular structure, bonding and dynamics based on applications of the above spectroscopic methods. A great part of the contributions included in this volume are devoted to biomedical and biotechnological applications and provide a broadly based account of recent applicationS in this field. The content of this book has been organized in sections corresponding mainly to the different types of biological molecules investigated. This book includes also another section related to theoretical methods where MO calculations of vibrational frequencies dominate clearly the topic.

Molecular Simulation Studies In Material And Biological Sciences

Author: Kholmirzo Kholmurodov
Publisher: Nova Publishers
ISBN: 9781594546075
Size: 52.33 MB
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Computer molecular simulations of complex multi-particle systems play a fascinating role in fundamental physics, biochemical and life sciences. The chemical, pharmaceutical, materials and related industries - all share the computer molecular simulation methods. This book presents leading international research in this dynamic field.

Advances In Biomembranes And Lipid Self Assembly

Author:
Publisher: Academic Press
ISBN: 0128050748
Size: 23.56 MB
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Advances in Biomembranes and Lipid Self-Assembly, formerly titled Advances in Planar Lipid Bilayers and Liposomes, provides a global platform for a broad community of experimental and theoretical researchers studying cell membranes, lipid model membranes, and lipid self-assemblies from the micro- to the nanoscale. Planar lipid bilayers are widely studied due to their ubiquity in nature and find their application in the formulation of biomimetic model membranes, and in the design of artificial dispersion of liposomes. Moreover, lipids self-assemble into a wide range of other structures, including micelles and the liquid crystalline hexagonal and cubic phases. Consensus has been reached that curved membrane phases do play an important role in nature as well, especially in dynamic processes, such as vesicles fusion and cell communication. Self-assembled lipid structures have enormous potential as dynamic materials ranging from artificial lipid membranes to cell membranes, from biosensing to controlled drug delivery, from pharmaceutical formulations to novel food products to mention a few. An assortment of chapters in this volume represents both original research as well as comprehensive reviews written by world leading experts and young researchers. Surveys recent theoretical and experimental results on lipid micro- and nanostructures Presents potential uses of applications, like clinically relevant diagnostic and therapeutic procedures, biotechnology, pharmaceutical engineering, and food products Includes both original research as well as comprehensive reviews written by world leading experts and young researchers Provides a global platform for a broad community of experimental and theoretical researchers studying cell membranes, lipid model membranes, and lipid self-assemblies from the micro- to the nanoscale

Polymer Membranes Biomembranes

Author: Wolfgang Peter Meier
Publisher: Springer Science & Business Media
ISBN: 3642104789
Size: 18.27 MB
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Themulticomponentnatureofbiologicalmembranesandtheirintra- andextracel- lar interactions make direct investigations on the membrane structure and processes nearly impossible. Clearly, a better understanding of the membrane properties and the mechanisms determining membrane protein functions is crucial to the imp- mentation of biosensors, bioreactors and novel platforms for medical therapy. For this reason, the interest in model systems suitable for the construction and study of complex lipid/protein membrane architectures has increased steadily over the years. The classical portfolio of model membranes used for biophysical and - terfacial studies of lipid (bi)layers and lipid/protein composites includes Langmuir monolayers assembled at the water/air interface, (uni- and multi-lamellar) vesicles in bulk (liposomal) dispersion, bimolecular lipid membranes (BLMs), and various types of solid-supported membranes. All these have speci?c advantages but also suffer from serious drawbacksthat limit their technical applications. Polymer m- branes comprised of entirely synthetic or hybrid (synthetic polymer/biopolymer) block copolymersappeared to be an attractive alternative to the lipid-based models. Generally, the synthetic block copolymer membranes are thicker and more stable and the versatility of polymer chemistry allows the adoption of relevant properties for a wide range of applications. This volume provides a vast overview of the physico-chemical and synthetic - pectsofarti?cial membranes. Numerousmembranemodelsaredescribed, including their properties(i. e. swelling, drying, lateral mobility, stability, electrical conduct- ity, etc. ), advantages, and drawbacks. The potential applications of these models are discussed and supported by real examples. Chapter 1 summarizesmethodsfor the stabilizationof arti?cial lipid membranes.

Biological Membranes

Author: Kenneth M. Merz
Publisher: Springer Science & Business Media
ISBN: 1468485806
Size: 78.30 MB
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The interface between a living cell and the surrounding world plays a critical role in numerous complex biological processes. Sperm/egg fusion, virus/cell fusion, exocytosis, endocytosis, and ion permeation are a few examples of processes involving membranes. In recent years, powerful tools such as X-ray crystal lography, electron microscopy, nuclear magnetic resonance, and infra-red and Raman spectroscopy have been developed to characterize the structure and dy namics of biomembranes. Despite this progress, many of the factors responsible for the function of biomembranes are still not well understood. The membrane is a very complicated supramolecular liquid-crystalline structure that is largely composed of lipids, forming a bilayer, to which proteins and other biomolecules are anchored. Often, the lipid bilayer environment is pictured as a hydropho bic structureless slab providing a thermodynamic driving force to partition the amino acids of a membrane protein according to their solubility. However, much of the molecular complexity of the phospholipid bilayer environment is ignored in such a simplified view. It is likely that the atomic details of the polar head group region and the transition from the bulk water to the hydrophobic core of the membrane are important. An understanding of the factors responsible for the function of biomembranes thus requires a better characterization at the molec ular level of how proteins interact with lipid molecules, of how lipids affect protein structure and of how lipid molecules might regulate protein function.

Biomembranes

Author: Lester Packer
Publisher: Academic Pr
ISBN:
Size: 43.85 MB
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The critically acclaimed laboratory standard, Methods in Enzymology, is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. The series contains much material still relevant today - truly an essential publication for researchers in all fields of life sciences.