Download or read book Structural Transition at Actin s N terminus in the Actomyosin Cross bridge Cycle written by James Ernest Hansen and published by . This book was released on 1999 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cytoskeleton written by James Spudich and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropomyosin written by Peter Gunning and published by Springer Science & Business Media. This book was released on 2009-09-30 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: A recent review of one of my grant applications commented on the ‘rediscovery of tropomyosin’. I was tempted to write back in my rebuttal to the reviewer that I didn’t realise it had been lost. Uncharacteristic maturity prevailed and I resisted the temptation, but I was struck by the underlying observation that research on the str- ture and function of tropomyosin has been somewhat invisible, particularly in terms of the cytoskeleton isoforms. So, how can it be that one of the two major components of the actin filament has been so thoroughly overlooked? I suspect that the answer is disappointingly pedestrian. Whereas the biochemistry of the 1980s revealed the potential of tropomyosin isoforms to diversify the function of actin filaments, the subsequent disenchantment with isoform biology in general in the 1990s inhibited growth of this field. With the development of more sophisticated experimental - proaches we are now seeing a growing realisation of the importance of tropomyosin in regulating actin filaments beyond its pivotal role in muscle contraction. The opportunity to edit this book came at a time when we had written several reviews on different aspects of tropomyosin function and I had just finished the background reading for a comprehensive review of tropomyosin biology. I realised that the field was simply beyond the capacity of any one person to do the field j- tice.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1992 with total page 1444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Myosins written by Lynne M. Coluccio and published by Springer Science & Business Media. This book was released on 2007-11-15 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly authoritative volume highlights the remarkable superfamily of molecular motors called myosins, which are involved in such diverse cellular functions as muscle contraction, intracellular transport, cell migration and cell division. In a timely compilation of chapters written by leading research groups that have made key discoveries in the field, the current understanding of the molecular mechanisms and biological functions of these intriguing proteins is explored.
Download or read book Cytokinesis in Animal Cells written by R. Rappaport and published by Cambridge University Press. This book was released on 2005-09-08 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book traces the history of some of the major ideas in the field and gives an account of our current knowledge of animal cytokinesis. It contains descriptions of division in different kinds of cells and the proposed explanations of the mechanisms underlying the visible events. The author also describes and explains experiments devised to test cell division theories. The forces necessary for cytokinesis now appear to originate from the interaction of linear polymers and motor molecules that have roles in force production, motion and shape change that occur in other phases of the biology of the cell. The localization of the force-producing mechanism to a restricted linear part of the subsurface is caused by the mitotic apparatus, the same cytoskeletal structure that insures orderly mitosis.
Download or read book Structure and Dynamics of Confined Polymers written by John J. Kasianowicz and published by Springer Science & Business Media. This book was released on 2002-07-31 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers are essential to biology because they can have enough stable degrees of freedom to store the molecular code of heredity and to express the sequences needed to manufacture new molecules. Through these they perform or control virtually every function in life. Although some biopolymers are created and spend their entire career in the relatively large free space inside cells or organelles, many biopolymers must migrate through a narrow passageway to get to their targeted destination. This suggests the questions: How does confining a polymer affect its behavior and function? What does that tell us about the interactions between the monomers that comprise the polymer and the molecules that confine it? Can we design and build devices that mimic the functions of these nanoscale systems? The NATO Advanced Research Workshop brought together for four days in Bikal, Hungary over forty experts in experimental and theoretical biophysics, molecular biology, biophysical chemistry, and biochemistry interested in these questions. Their papers collected in this book provide insight on biological processes involving confinement and form a basis for new biotechnological applications using polymers. In his paper Edmund DiMarzio asks: What is so special about polymers? Why are polymers so prevalent in living things? The chemist says the reason is that a protein made of N amino acids can have any of 20 different kinds at each position along the chain, resulting in 20 N different polymers, and that the complexity of life lies in this variety.
Download or read book Stretch Intensity and the Inflammatory Response A Paradigm Shift written by Nikos C. Apostolopoulos and published by Springer. This book was released on 2018-12-27 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this manuscript, practitioners and students who are concerned with sports and rehabilitation medicine, kinesiology, as well as coaches and athletes, are introduced to numerous concepts, including mechanotransduction, inflammation, pro- and anti-inflammatory cytokines, calpains, the extracellular matrix, neutrophils and macrophages, and their relevance to stretching, particularly stretching intensity. Although the quantitative parameters of training, duration, and frequency are important, it is the qualitative criterion of intensity (“how much”) that the author suggests is ultimately of greater concern. Intensity, the rate and magnitude of force, may be responsible for the proper recovery, regeneration, and adaptation of the musculoskeletal tissues from training, competition, or rehabilitation from injuries. Research suggests that too much force results in the stimulation of an inflammatory response, one associated with a biochemical feedback emerging from a mechanical stimulus. The intent of this manuscript is twofold: to initiate the discussion of the importance of stretching intensity with regard to proper recovery, regeneration, and adaptation, and to suggest that researchers need to explore its potential role in addressing numerous inflammatory (RA) and non-inflammatory (OA, recurrent tendinitis etc.) musculoskeletal conditions as well.
Download or read book Biomechanics of Skeletal Muscles written by Vladimir M. Zatsiorsky and published by Human Kinetics. This book was released on 2012-04-10 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Richly illustrated and presented in clear, concise language, Biomechanics of Skeletal Muscles is an essential resource for those seeking advanced knowledge of muscle biomechanics. Written by leading experts Vladimir Zatsiorsky and Boris Prilutsky, the text is one of the few to look at muscle biomechanics in its entirety—from muscle fibers to muscle coordination—making it a unique contribution to the field. Using a blend of experimental evidence and mechanical models, Biomechanics of Skeletal Muscles provides an explanation of whole muscle biomechanics at work in the body in motion. The book first addresses the mechanical behavior of single muscles—from the sarcomere level up to the entire muscle. The architecture of human muscle, the mechanical properties of tendons and passive muscles, the biomechanics of active muscles, and the force transmission and shock absorption aspects of muscle are explored in detail. Next, the various issues of muscle functioning during human motion are addressed. The transformation from muscle force to joint movements, two-joint muscle function, eccentric muscle action, and muscle coordination are analyzed. This advanced text assumes some knowledge of algebra and calculus; however, the emphasis is on understanding physical concepts. Higher-level computational descriptions are placed in special sections in the later chapters of the book, allowing those with a strong mathematical background to explore this material in more detail. Readers who choose to skip over these sections will find that the book still provides a strong conceptual understanding of advanced topics. Biomechanics of Skeletal Muscles also contains numerous special features that facilitate readers’ comprehension of the topics presented. More than 300 illustrations and accompanying explanations provide an extensive visual representation of muscle biomechanics. Refresher sidebars offer brief reminders of mathematical and biomechanical concepts, and From the Literature sidebars present practical examples that illustrate the concepts under discussion. Chapter summaries and review questions provide an opportunity for reflection and self-testing, and reference lists at the end of each chapter provide a starting point for further study. Biomechanics of Skeletal Muscles offers a thorough explanation of whole muscle biomechanics, bridging the gap between foundational biomechanics texts and scientific literature. With the information found in this text, readers can prepare themselves to better understand the latest in cutting-edge research. Biomechanics of Skeletal Muscles is the third volume in the Biomechanics of Human Motion series. Advanced readers in human movement science gain a comprehensive understanding of the biomechanics of human motion as presented by one of the world’s foremost researchers on the subject, Dr. Vladimir Zatsiorsky. The series begins with Kinematics of Human Motion, which details human body positioning and movement in three dimensions; continues with Kinetics of Human Motion, which examines the forces that create body motion and their effects; and concludes with Biomechanics of Skeletal Muscles, which explains the action of the biological motors that exert force and produce mechanical work during human movement.
Download or read book Signaling and the Cytoskeleton written by Kermit L. Carraway and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph explores the relationships between cell signaling and the cytoplasmic cytoskeleton in fundamental cell processes, thus bridging the gap between two very active aspects of molecular cell biology. It covers the two main - and reciprocal - questions of these relationships: How are structure and function of the cytoskeleton affected by external signals which impinge on the cell? How does the cytoskeleton influence the cellular signaling processes which determine cell behavior?
Download or read book Protein Trafficking in Neurons written by Andrew J. Bean and published by Elsevier. This book was released on 2006-10-27 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficient delivery of cellular constituents to their proper location is of fundamental importance for all cells and is of particular interest to neuroscientists, because of the unique functions and complex architecture of neurons. Protein Trafficking in Neurons examines mechanisms of protein trafficking and the role of trafficking in neuronal functioning from development to plasticity to disease. The book is divided into seven sections that review mechanisms of protein transport, the role of protein trafficking in synapse formation, exo- and endocytosis, transport of receptors, trafficking of ion channels and transporters, comparison of trafficking mechanisms in neuronal vs. non-neuronal cell types, and the relationship between trafficking and neuronal diseases such as Alzheimer's, Huntington's and Prion Diseases. Provides a comprehensive examination of membrane/protein movement in neuronal function Sections on synapse development, synaptic transmission, and the role of trafficking in neurological disease Includes a focus on Molecular Mechanisms Illustrated with color summary pictures The only book examining protein trafficking and its functional implications, written by leaders in the field
Download or read book The Septins written by Peter A. Hall and published by John Wiley & Sons. This book was released on 2008-11-20 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The authors represent most of the key figures and the work and the book as a whole is an essential reference for the newcomer or specialist in this area and for any student of eukaryotic cell structure and function. This is an important and wonderful reference." –Microbiology Today, May 2009 Septins are an evolutionarily conserved group of GTP-binding and filament-forming proteins that were originally discovered in yeast. Once the preserve of a small band of yeast biologists, the field has grown rapidly in the past few years and now encompasses the whole of animal and fungal biology. Furthermore, septins are nowadays recognized to be involved in a variety of disease processes from neoplasia to neurodegenerative conditions. This book comprehensively examines the septin gene family and their proteins, providing those new to this research area with a detailed and wide ranging introduction to septin biology. It starts with a unique historical perspective on the development of the field, from its beginnings in the screen for cell division mutants by the Nobel Laureate Lee Hartwell. The evolution of the septin gene family then forms a basis for consideration of the biochemistry and functions of septins in yeast and other model organisms including C. elegans and Drosophila. A major part of the book considers the diversity of septins in mammals, their functions and properties as well as their involvement in normal and abnormal cellular states, followed by a speculative overview from the editors of the key questions in septin research and of where the field may be headed. In addition, several appendices summarise important information for those in, or just entering, the field, e.g. nomenclature and septin and septin-like sequences. This book is an essential source of reference material for researchers in septin biology, cell biology, genetics and medicine, in particular pathology, including areas of neurobiology, oncology, infectious disease and developmental biology.
Download or read book Biochemistry of Smooth Muscle Contraction written by Michael Barany and published by Elsevier. This book was released on 1996-01-04 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable resource provides a systematic account of the biochemistry of smooth muscle contraction. As a comprehensive guide to this rapidly growing area of research, it covers the structure and characteristic properties of contractile and regulatory proteins, with special emphasis on their predicted function in the live muscle. Also included in this book are intermediate filament proteins, and desmin and vimentin, whose function in smooth muscle is unknown; and several enzymes involved in the phosphorylation-dephosphorylation of contractile and other proteins.
Download or read book The Sliding Filament Theory of Muscle Contraction written by David Aitchison Smith and published by Springer. This book was released on 2019-02-05 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the molecular mechanism of muscle contraction started with the discovery that striated muscle is composed of interdigitating filaments which slide against each other. Sliding filaments and the working-stroke mechanism provide the framework for individual myosin motors to act in parallel, generating tension and loaded shortening with an efficient use of chemical energy. Our knowledge of this exquisitely structured molecular machine has exploded in the last four decades, thanks to a bewildering array of techniques for studying intact muscle, muscle fibres, myofibrils and single myosin molecules. After reviewing the mechanical and biochemical background, this monograph shows how old and new experimental discoveries can be modelled, interpreted and incorporated into a coherent mathematical theory of contractility at the molecular level. The theory is applied to steady-state and transient phenomena in muscle fibres, wing-beat oscillations in insect flight muscle, motility assays and single-molecule experiments with optical trapping. Such a synthesis addresses major issues, most notably whether a single myosin motor is driven by a working stroke or a ratchet mechanism, how the working stroke is coupled to phosphate release, and whether one cycle of attachment is driven by the hydrolysis of one molecule of ATP. Ways in which the theory can be extended are explored in appendices. A separate theory is required for the cooperative regulation of muscle by calcium via tropomyosin and troponin on actin filaments. The book reviews the evolution of models for actin-based regulation, culminating in a model motivated by cryo-EM studies where tropomyosin protomers are linked to form a continuous flexible chain. It also explores muscle behaviour as a function of calcium level, including emergent phenomena such as spontaneous oscillatory contractions and direct myosin regulation by its regulatory light chains. Contraction models can be extended to all levels of calcium-activation by embedding them in a cooperative theory of thin-filament regulation, and a method for achieving this grand synthesis is proposed. Dr. David Aitchison Smith is a theoretical physicist with thirty years of research experience in modelling muscle contractility, in collaboration with experimental groups in different laboratories.
Download or read book Modeling and Simulating Cardiac Electrical Activity written by David J. Christini and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a thorough introduction to the topic of mathematical modeling of electrical activity in the heart, from molecular details of ionic channel dynamics to clinically derived patient-specific models. It discusses how cellular ionic models are formulated, introduces commonly used models and explains why there are so many different models available. The chapters cover modeling of the intracellular calcium handling that underlies cellular contraction as well as modeling molecular-level details of cardiac ion channels, and also focus on specialized topics such as cardiomyocyte energetics and signalling pathways. It is an excellent resource for experienced and specialised researchers in the field, but also biological scientists with a limited background in mathematical modelling and computational methods. Part of Biophysical Society-IOP series.
Download or read book Pathophysiology and Pharmacotherapy of Cardiovascular Disease written by Gowraganahalli Jagadeesh and published by Springer. This book was released on 2015-05-06 with total page 1323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book covers the basic principles of cardiovascular physiology, pathophysiology and advanced pharmacology with particular emphasis on cellular mechanisms of drug action. It provides an update on the progress made in several aspects of cardiovascular diseases so that it might kindle scientists and clinicians alike in furthering basic and translational research. In addition, the book is expected to fill imperative gaps in understanding and optimally treating cardiovascular disease.
Download or read book Physics of Cancer written by Claudia Mierke and published by Iph001. This book was released on 2018-10-24 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised second edition is improved linguistically with multiple increases of the number of figures and the inclusion of several novel chapters such as actin filaments during matrix invasion, microtubuli during migration and matrix invasion, nuclear deformability during migration and matrix invasion, and the active role of the tumor stroma in regulating cell invasion.
