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Author: David Deamer Publisher: Elsevier ISBN: 0323153550 Category : Science Languages : en Pages : 383
Book Description
Light Transducing Membranes: Structure, Function, and Evolution covers the proceedings of a joint United States-Australia conference held in Honolulu, Hawaii on December 1977. Organized into four parts encompassing 19 chapters, the book focuses on structural, functional, and evolutionary aspects of light energy transduction by membranes. The first part of the book explores the problems of how membrane-related biomolecules could have evolved prior to the origin of life, how amphiphiles might have become organized in lipid bilayer structures, and what mechanisms may have been available for light energy transduction. The mechanisms by which ions, lipids, and proteins interact in membrane systems are described in the next part of the book. Some chapters in the third part of the book cover the analysis of several bacterial membranes as reconstituted, light transducing systems, providing a new tool for investigating basic mechanisms. Relevant aspects of mitochondrial energy transduction are also covered. Finally, the last part presents mechanism analysis by which intact bacteria and chloroplasts interact with light energy, which represent the end product of several billion of years of evolution. Biological evolutionists, biologists, researchers, teachers, and students who are interested in various aspects of light transducing membranes will greatly benefit from this book.
Author: David Deamer Publisher: Elsevier ISBN: 0323153550 Category : Science Languages : en Pages : 383
Book Description
Light Transducing Membranes: Structure, Function, and Evolution covers the proceedings of a joint United States-Australia conference held in Honolulu, Hawaii on December 1977. Organized into four parts encompassing 19 chapters, the book focuses on structural, functional, and evolutionary aspects of light energy transduction by membranes. The first part of the book explores the problems of how membrane-related biomolecules could have evolved prior to the origin of life, how amphiphiles might have become organized in lipid bilayer structures, and what mechanisms may have been available for light energy transduction. The mechanisms by which ions, lipids, and proteins interact in membrane systems are described in the next part of the book. Some chapters in the third part of the book cover the analysis of several bacterial membranes as reconstituted, light transducing systems, providing a new tool for investigating basic mechanisms. Relevant aspects of mitochondrial energy transduction are also covered. Finally, the last part presents mechanism analysis by which intact bacteria and chloroplasts interact with light energy, which represent the end product of several billion of years of evolution. Biological evolutionists, biologists, researchers, teachers, and students who are interested in various aspects of light transducing membranes will greatly benefit from this book.
Author: William A. Cramer Publisher: Springer Science & Business Media ISBN: 1461232201 Category : Science Languages : en Pages : 553
Book Description
Energy Transduction in Biological Membranes was primarily designed for graduate courses in bioenergetics. Not only does it discuss basic principles and concepts central to modern membrane biochemistry, biophysics and molecular biology, but also (1) the components and pathways for electron transport and hydrogen ion translocation, and (2) the utilization of electrochemical ion gradients. The book is unique in presenting a comparative treatment of respiratory and photosynthetic energy transduction, and in using protein sequence data coupled with physical concepts to discuss the mechanisms of energy transducing proteins.
Author: Hugo J. Bellen Publisher: ISBN: Category : Cellular signal transduction Languages : en Pages : 466
Book Description
Understanding the mechanisms that underlie brain activity and function remains one of the major frontiers of biology. All the processes of how we co-ordinate our movements, sense our surroundings, react to stimuli and learn and retain information rely on complicated networks of neurons thatcommunicate with each other and their targets. This fast and accurate intercellular signalling most occurs at synapses, specialized processes of neurons that release chemical signals, called neurotransmitters. Neurotransmitters: Frontiers in Molecular Biology will provide the reader withextensive background information on neurotransmitter release. It takes a multidisciplinary approach, but does not assume previous knowledge having basic introductions to most topics. Topics however are covered in enough detail to be of interest to experts in the field. Throughout, emphasis is placedon the rationale by which proteins are assigned specific functions rather than just providing facts about function. The first chapter provides an introduction to the basic features and properties of the synapse and is followed by a chapter detailing several important techniques used to elucidatevarious aspects of release. Chapters 3 describes many of the biochemical approaches used to identify proteins involved in neurotransmitter release and then chapters 4 and 5 focus on more specific aspects of synaptic transmission: the proteins that transport neurotransmitters and the role ofphosphlipids in the process. The next five chapters concentrate on approaches to unravel the function of many proteins in vivo by using toxins, giant squid axons, C. elegans, Drosophila, and mice. The final chapter summarizes current knowledge on endocytosis and recycling. Knowledge of themolecular mechanisms underlying neurotransmitter release has expanded tremendously over the last 10 years. Many of the proteins involved have been isolated, but their roles have yet to be determined. These discoveries will be a major challenge and it is therefore the major aim of this book not onlyto provide information but also to generate excitement.
Author: Giuliano Colombetti Publisher: Springer Science & Business Media ISBN: 1461326753 Category : Science Languages : en Pages : 391
Book Description
The main purpose of this book is to unify approaches and ideas in the field of aneural sensory transduction. This field has recently come to the attention of several research groups in various disciplines, and their number seems to be growing. Unfortunately, because of the diverse scientific backgrounds of the researchers in the field, the apparent heterogeneity of experimental techniques (i. e. , behavioral response analysis, sophisticated biochemical and genetic manipulations, conventional and pulsed laser spectroscopy) and theoretical approaches may be discouraging, for both the experienced worker and the new comer. Actually, this heterogeneity is more apparent than real, and unifying concepts, approaches, and ideas already exist, particularly with respect to all the questions concerning the role of membranes and their properties (such as ion permeability, electric potentials, and active transport) in the various steps of sensory perception and transduction processes. It is currently accepted that most, if not all, the fundamental facts in molecular sensory physiology of aneural organisms, be they chemosensory, photosensory, or geosensory, can ultimately be understood in terms of a few basic ideas. Each chapter of this book emphasizes and clarifies the role of mem brane properties and phenomena in the particular sensory response examined. Of course, in some cases, this task has been rather complex because of the limited amount of experimental data clearly supporting a membrane-based model of sensory transduction.
Author: Paul A. Hargrave Publisher: Springer Science & Business Media ISBN: 3642764827 Category : Science Languages : en Pages : 317
Book Description
This book deals with the mechanism of signal transduction in vertebrate and invertebrate photoreceptors. It contains contributions on the structure and function of rhodopsin or other G-coupled receptors, on the regulation of second messengers by enzyme cascade, the role of Ca2+ in light adaptation, control of ionic channels in photoreceptor cells.
Author: Robert C. Jennings Publisher: Springer Science & Business Media ISBN: 1461304091 Category : Science Languages : en Pages : 310
Book Description
A NATO Advanced Study Institute on "Light as Energy Source and Information Carrier in Plant Photo physiology" was held at Volterra, Italy, from September 26 to October 6, 1994, in order to consider the fundamental role that light plays in plant growth and development. This book summarises the main lectures given at this meeting which concentrated on both photochemical energy conversion and signalling (photosensing) aspects. Light harvesting and conversion into chemical energy in photosynthesis occurs at the level of chlorophyll/carotenoid containing photosystems in plants. Pigments are non covalently bound to a variety of polypeptides which serve as a specific scaffolding, necessary to determine the energy coupling between pigments and thus allowing rapid excitation energy trasfer from the antenna to the special reaction centre chlorophylls. Data from transient, time resolved spectroscopies, in the femtosecond and picosecond domain, together with model calculations, suggest that this process occurs in the 20-100 picosecond time span. The special ~ll u~ture of reaction centre complexes, ensures rapid primary charge separation, probably in the order of 1-3 picoseconds, with subsequent charge stabilisation reactions proceeding in the hundreds of picoseconds range. The recently resolved crystallographic structure of LHCII, the principal antenna complex of plants, allows precise determination of pigment-pigment distances and thus permits calculation of approximate chlorophyll-chlorophyll Forster hopping rates, which are in good agreement with time resolved measurements.
Author: David Deamer
Author: David Deamer
Author: William A. Cramer
Author: Helga Kolb
Author: David W. Deamer
Author: Hugo J. Bellen
Author: Makoto Nakao
Author: Giuliano Colombetti
Author: Bruce Alberts
Author: Paul A. Hargrave
Author: Robert C. Jennings