Biomembrane Structures

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Biomembrane Structures

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Author : Parvez I. Haris
language : en
Publisher: IOS Press
Release Date : 1998

Biomembrane Structures written by Parvez I. Haris and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Medical categories.

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.

Biomembranes

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Author : Robert B. Gennis
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17

Biomembranes written by Robert B. Gennis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.

New textbooks at all levels of chemistry appear with great regularity. Some fields like basic biochemistry, organic reaction mechanisms, and chemical thermody namics are well represented by many excellent texts, and new or revised editions are published sufficiently often to keep up with progress in research. However, some areas of chemistry, especially many of those taught at the graduate level, suffer from a real lack of up-to-date textbooks. The most serious needs occur in fields that are rapidly changing. Textbooks in these subjects usually have to be written by scientists actually involved in the research which is advancing the field. It is not often easy to persuade such individuals to set time aside to help spread the knowledge they have accumulated. Our goal, in this series, is to pinpoint areas of chemistry where recent progress has outpaced what is covered in any available textbooks, and then seek out and persuade experts in these fields to produce relatively concise but instructive introductions to their fields. These should serve the needs of one semester or one quarter graduate courses in chemistry and biochemistry. In some cases, the availability of texts in active research areas should help stimulate the creation of new courses.

Biomembrane Structure And Function

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Author : Dennis Chapman
language : en
Publisher: Springer
Release Date : 1983-06-18

Biomembrane Structure And Function written by Dennis Chapman and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983-06-18 with Science categories.

Molecular Biology Of The Cell

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Author :
language : en
Publisher:
Release Date : 2004

Molecular Biology Of The Cell written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Cells categories.

Tensile Surface Structures

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Author : Michael Seidel
language : en
Publisher: John Wiley & Sons
Release Date : 2009-08-11

Tensile Surface Structures written by Michael Seidel and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-11 with Technology & Engineering categories.

Tensile surface structures are the visual expression of an intensive rethinking of the topic of building envelopes by designers. Advances in design methods, materials, construction elements and assembly and erection planning in the field of lightweight construction are enabling ever more exacting applications of tensile structures with envelope and structural functions, especially in roofing over large clear spans without internal support. However, the particular mechanical characteristics of the materials used in the construction of textile structures demand consideration of the question of "buildability". This book provides answers by discussing the fundamental influence of material manufacture and assembly in deciding the most suitable type of building or structure and its detailing in the design process. The fundamentals of material composition, manufacturing process, patterning and the behaviour of flexible structural systems are all explained here, as well as their use as structural and connection elements, and special attention is given to the erection of wide-span lightweight structures. The erection equipment is described, as well as the lifting and tensioning process and the construction methods used to erect the characteristic types of tensile structures, illustrated with a selection of example projects.

An Introduction To Biological Membranes

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Author : William Stillwell
language : en
Publisher: Elsevier Science
Release Date : 2016-07-19

An Introduction To Biological Membranes written by William Stillwell and has been published by Elsevier Science this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-19 with Science categories.

Introduction to Biological Membranes: Composition, Structure and Function, Second Edition is a greatly expanded revision of the first edition that integrates many aspects of complex biological membrane functions with their composition and structure. A single membrane is composed of hundreds of proteins and thousands of lipids, all in constant flux. Every aspect of membrane structural studies involves parameters that are very small and fast. Both size and time ranges are so vast that multiple instrumentations must be employed, often simultaneously. As a result, a variety of highly specialized and esoteric biochemical and biophysical methodologies are often utilized. This book addresses the salient features of membranes at the molecular level, offering cohesive, foundational information for advanced undergraduate students, graduate students, biochemists, and membranologists who seek a broad overview of membrane science.

Membrane Structural Biology

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Author : Mary Luckey
language : en
Publisher: Cambridge University Press
Release Date : 2008-03-17

Membrane Structural Biology written by Mary Luckey and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-03-17 with Science categories.

Cutting-edge text providing a foundation for membrane biology suitable for advanced students and working scientists.

Structure And Properties Of Cell Membrane Structure And Properties Of Cell Membranes

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Author : Benga
language : en
Publisher: CRC Press
Release Date : 2018-01-18

Structure And Properties Of Cell Membrane Structure And Properties Of Cell Membranes written by Benga and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-18 with Science categories.

This book provides in-depth presentations in membrane biology by specialists of international repute. The volumes examine world literature on recent advances in understanding the molecular struc-ture and properties of membranes, the role they play in cellular physiology and cell-cell interactions, and the alterations leading to abnormal cells. Illustrations, tables, and useful appendices com-plement the text. Those professionals actively working in the field of cell membrane investigations as well as biologists, biochemists, biophysicists, physicians, and academicians, will find this work beneficial.

Specialised Membrane Domains Of Plasmodesmata Plant Intercellular Nanopores

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Author : Jens Tilsner
language : en
Publisher: Frontiers E-books
Release Date : 2014-12-17

Specialised Membrane Domains Of Plasmodesmata Plant Intercellular Nanopores written by Jens Tilsner and has been published by Frontiers E-books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-17 with Botany categories.

Plasmodesmata (PD) are plant-specific intercellular nanopores defined by specialised domains of the plasma membrane (PM) and the endoplasmic reticulum (ER), both of which contain unique proteins, and probably different lipid compositions than the surrounding bulk membranes. The PD membranes form concentric tubules with a minimal outer diameter of only 50 nm, and the central ER strand constricted to ~10-15 nm, representing one of the narrowest stable membrane tubules in nature. This unique membrane architecture poses many biophysical, structural and functional questions. PM continuity across PD raises the question as to how a locally confined membrane site is established and maintained at PD. There is increasing evidence that the PM within PD may be enriched in membrane ‘rafts’ or TET web domains. Lipid rafts often function as signalling platforms, in line with the emerging view of PD as central players in plant defense responses. Lipid-lipid immiscibility could also provide a mechanism for membrane sub- compartmentalisation at PD. Intricate connections of the PM to the wall and the underlying cytoskeleton and ER may anchor the specialised domains locally. The ER within PD is even more strongly modified. Its extreme curvature suggests that it is stabilised by densely packed proteins, potentially members of the reticulon family that tubulate the cortical ER. The diameter of the constricted ER within PD is similar to membrane stalks in dynamin-mediated membrane fission during endocytosis and may need to be stabilised against spontaneous rupture. The function of this extreme membrane constriction, and the reasons why the ER is connected between plant cells remain unknown. Whilst the technically challenging search for the protein components of PD is ongoing, there has been significant recent progress in research on biological membranes that could benefit our understanding of PD function. With this Research Topic, we therefore aim to bring together researchers in the PD field and those in related areas, such as membrane biophysics, membrane composition and fluidity, protein-lipid interactions, lateral membrane heterogeneity, lipid rafts, membrane curvature, and membrane fusion/fission. We wish to address questions such as: - What mechanisms restrict lateral mobility of proteins and lipids along the PD membranes? - How can specific proteins be targeted to and turned over from membrane domains with restricted lateral access? - What elements (lipids, proteins, membrane curvature, packing order, thickness etc.) may contribute to the identity of PD membranes? - How do the structural and functional features of PD compare to other ER-PM contact sites? - How is the high curvature of the PD ER stabilised and what are possible functions of such a tightly constricted membrane tubule? - Do PD need to be prevented from spontaneous collapse and sealing? - What technologies are available to address these questions that can underpin PD research? We welcome interested individuals to contribute their expertise and develop new hypotheses on the particular biological and biophysical questions posed by PD. We are particularly looking for articles (Original Research Articles, Technical Advances and State-of-the-Art reviews) that would expand on or challenge current perceptions of PD and stimulate discussion.

Membrane Structures

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Author : Klaus-Michael Koch
language : en
Publisher: Prestel Publishing
Release Date : 2004

Membrane Structures written by Klaus-Michael Koch and has been published by Prestel Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Architecture categories.

In this comprehensive work to date on membrane technology for architecture, pioneers show how one of the world's oldest forms of building material is also its most innovative. Today, the cutting edge in architecture is not sharp but curved and undulating. It is also impermeable to moisture, resistant to extreme temperatures, flexible and portable. Known as the fifth building material after wood, stone, glass, and metal, membranes are popping up everywhere: in Olympic stadiums in Berlin and Atlanta, in airports from Denver to Bangkok, over fashion shows, formal gardens, and soccer fields. Membranes' ability to not only let in but also reflect light portends enormous possibilities for harnessing energy. This fascinating survey of membrane structures throughout the world discusses the history of the medium, describes the materials and their uses, explores the technology of membrane construction, and investigates numerous current and future projects. A final chapter offers a reasoned argument for further research and experimentation in this rapidly expanding field and a projection of its exciting future. Illustrated throughout