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Molecular Mechanisms In Muscular Contraction
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Book Synopsis Molecular Mechanisms in Muscular Contraction by : John Squire
Download or read book Molecular Mechanisms in Muscular Contraction written by John Squire and published by . This book was released on 1990 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a lot of debate concerning the nature of the molecular mechanism that produces filament sliding and muscle shortening. This book presents the different kinds of structural and mechanical evidence in favour of the swinging of myosin heads on actin during the contractile cycle.
Book Synopsis Mechanism of Muscular Contraction by : Jack A. Rall
Download or read book Mechanism of Muscular Contraction written by Jack A. Rall and published by Springer. This book was released on 2014-10-21 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the evolution of ideas relating to the mechanism of muscular contraction since the discovery of sliding filaments in 1954. An amazing variety of experimental techniques have been employed to investigate the mechanism of muscular contraction and relaxation. Some background of these various techniques is presented in order to gain a fuller appreciation of their strengths and weaknesses. Controversies in the muscle field are discussed along with some missed opportunities and false trails. The pathway to ATP and the high energy phosphate bond will be discussed, as well as the discovery of myosin, contraction coupling and the emergence of cell and molecular biology in the muscle field. Numerous figures from original papers are also included for readers to see the data that led to important conclusions. This book is published on behalf of the American Physiological Society by Springer. Access to APS books published with Springer is free to APS members.
Book Synopsis Molecular Control Mechanisms in Striated Muscle Contraction by : R.J. Solaro
Download or read book Molecular Control Mechanisms in Striated Muscle Contraction written by R.J. Solaro and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Control Mechanisms in Striated Muscle Contraction addresses the molecular mechanisms by which contraction of heart and skeletal muscles is regulated, as well as the modulation of these mechanisms by important (patho)physiological variables such as ionic composition of the myoplasm and phosphorylations of contractile and regulatory proteins. For the novice, this volume includes chapters that summarize current understanding of excitation-contraction coupling in striated muscles, as well as the compositions and structures myofibrillar thick and thin filaments. For the expert, this volume presents detailed pictures of current understanding of the mechanisms underlying the CA2+ regulation of contraction in heart and skeletal muscles and discusses important directions for future investigation.
Book Synopsis Fibrous Proteins: Muscle and Molecular Motors by : John M. Squire
Download or read book Fibrous Proteins: Muscle and Molecular Motors written by John M. Squire and published by Gulf Professional Publishing. This book was released on 2005-08-29 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Motors and Muscle is the second of a three-part series on Fibrous Proteins. The books are based on a very successful workshop in Alpbach, Austria on the general topic of Fibrous Proteins that gave rise to the award-winning issue of Journal of Structural Biology. There are two major types of protein: Globular proteins which are often enzymes which speed up biochemical reactions and Fibrous proteins which often have more structural roles but can also have dynamic properties. Fibrous proteins are usually either elongated molecules which pack together to form long filaments, as in the case of the intermediate filaments in our hair and skin and as in collagen fibrils in tendons and bones or they are globular proteins which aggregate linearly to form long filaments, such as actin filaments or microtubules. Fibrous proteins act as molecular scaffolds in cells, they can be involved in transport of cell organelles or even on a visible scale as in our muscles. They provide the supporting structures of our skeletons, bones, tendons, cartilage, and skin. They define the mechanical properties of our internal hollow organs such as the intestines, heart, and blood vessels. They are vital for life and represent a fascinating subset of the proteome. Advances in Protein Chemistry is available online on ScienceDirect - full-text online of volumes 53 onwards. Elsevier book series on ScienceDirect gives multiple users throughout an institution simultaneous online access to an important compliment to primary research. Digital delivery ensures users reliable, 24-hour access to the latest peer-reviewed content. The Elsevier book series are compiled and written by the most highly regarded authors in their fields and are selected from across the globe using Elsevier's extensive researcher network. For more information about the Elsevier Book Series on ScienceDirect Program, please visit: http://www.info.sciencedirect.com/bookseries/ *Allows a comparison to be made between unique but related structures. *Quality of the text and illustrations allows ready comprehension of key protein design features. *Identifies fibrous protein sequence features for analysis of the human genome. *Analyzes design principles for fibrous protein sequences thus leading potentially to development of new devices by nanofabrication.
Book Synopsis Molecular Mechanisms in Striated Muscle by : S. V. Perry
Download or read book Molecular Mechanisms in Striated Muscle written by S. V. Perry and published by Cambridge University Press. This book was released on 1996-09-13 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Striated muscle is the most common muscle type in the vertebrate body. This book describes in molecular terms the components and intracellular events responsible for the contraction and relaxation of striated muscle. The topic is introduced with a discussion of motile systems occurring throughout the biological world and their relation to the highly specialised contractile system of muscle. Professor Perry then goes on to discuss the mechanochemical process and the regulatory roles of calcium, I filament proteins and phosphorylation. The book ends with an examination of the role of dystrophin and its implications in Duchenne muscular dystrophy, the most common form of muscle disease. Molecular Mechanisms in Striated Muscle will provide an important source of information and current theory for researchers and postgraduate students in muscle physiology, biochemistry and medicine.
Book Synopsis Molecular and Cellular Aspects of Muscle Contraction by : Haruo Sugi
Download or read book Molecular and Cellular Aspects of Muscle Contraction written by Haruo Sugi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of a muscle symposium, which was supported by the grant from the Fujihara Foundation of Science to be held as the Fourth Fujihara Seminar on October 28 -November 1, 2002, at Hakone, Japan. The Fujihara Seminar covers all fields of natural science, while only one proposal is granted every year. It is therefore a great honor for me to be able to organize this meeting. Before this symposium, I have organized muscle symposia five times, and published the proceedings: " Cross-bridge Mechanism in Muscle Contraction (University of Tokyo Press, 1978), "Contractile Mechanisms in Muscle" (plenum, 1984); "Molecular Mechanisms of Muscle Contraction" (plenum, 1988); "Mechanism of MyofIlament Sliding in Muscle contraction" (plenum, 1993); "Mechanisms of Work Production and Work Absorption in Muscle" (plenum, 1998). As with these proceedings, this volume contains records of discussions made not only after each presentation but also during the periods of General Discussion, in order that general readers may properly evaluate each presentation and the up-to-date situation of this research field. It was my great pleasure to have Dr. Hugh Huxley, a principal discoverer of the sliding fIlament mechanism in muscle contraction, in this meeting. On my request, Dr. Huxley kindly gave a special lecture on his monumental discovery of myofIlament-lattice structure by X-ray diffraction of living skeletal muscle. I hope general readers to learn how a breakthrough in a specific research field can be achieved.
Book Synopsis Molecular Mechanisms of Muscle Contraction by : Haruo Sugi
Download or read book Molecular Mechanisms of Muscle Contraction written by Haruo Sugi and published by . This book was released on 1988 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Mechanisms of Smooth Muscle Contraction by : Kazuhiro Kohama
Download or read book Molecular Mechanisms of Smooth Muscle Contraction written by Kazuhiro Kohama and published by Landes Bioscience. This book was released on 1999 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular and Physiological Mechanisms of Muscle Contraction by : Jean Emile Morel
Download or read book Molecular and Physiological Mechanisms of Muscle Contraction written by Jean Emile Morel and published by CRC Press. This book was released on 2015-11-05 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly researched using experimentation and re-examination of all previously published evidence, Molecular and Physiological Mechanisms of Muscle Contraction is a carefully crafted treatise and revision of previous conceptions of muscle contraction. It presents detailed descriptions of new, previously unpublished data and hybrids recent finding
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanisms of Work Production and Work Absorption in Muscle by : Haruo Sugi
Download or read book Mechanisms of Work Production and Work Absorption in Muscle written by Haruo Sugi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: `In contrast to common practice, we have always tried to include as many discussions held at the meeting in our proceedings as possible, so as to enable readers to properly evaluate each paper presented, as well as to learn of future prospects in this field of research. Although the policy of including discussions occasions a long publication delay, we believe that it is worth repeating in our future publication, as we have met a number of young investigators fascinated by the discussions in our proceedings.... In the concluding remarks in this volume, Dr. Hugh E. Huxley, a principal architect of the sliding filament mechanism of muscle contraction, states that the molecular mechanism of myofilament sliding remains mysterious to all of us. We hope that this volume will stimulate muscle investigators to design and perform novel experiments to clarify the mysteries in muscle contraction.' Haruo Sugi and Gerald H. Pollack, excerpted from the Preface.
Book Synopsis Muscle Homeostasis and Regeneration by : Antonio Musarò
Download or read book Muscle Homeostasis and Regeneration written by Antonio Musarò and published by MDPI. This book was released on 2020-11-20 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a collection of original research and review articles addressing the intriguing field of the cellular and molecular players involved in muscle homeostasis and regeneration. One of the most ambitious aspirations of modern medical science is the possibility of regenerating any damaged part of the body, including skeletal muscle. This desire has prompted clinicians and researchers to search for innovative technologies aimed at replacing organs and tissues that are compromised. In this context, the papers, collected in this book, addressing a specific aspects of muscle homeostasis and regeneration under physiopathologic conditions, will help us to better understand the underlying mechanisms of muscle healing and will help to design more appropriate therapeutic approaches to improve muscle regeneration and to counteract muscle diseases.
Book Synopsis Muscle Contraction by : Clive R. Bagshaw
Download or read book Muscle Contraction written by Clive R. Bagshaw and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: The student of biolo,gical science in his final years as an undergraduate and his first years as a graduate is expected to gain some familiarity with current research at the frontiers of his discipline. New research work is published in a perplexing diversity of publications and is inevitably concerned with the minutiae of the subject. The sheer number of research journals and papers also causes confusion and difficulties of assimilation. Review articles usually presuppose a background knowledge of the field and are inevitably rather restricted in scope. There is thus a need for short but authoritative introductions to those areas of modern biological research which are either not dealt with in standard introductory textbooks or are not dealt with in sufficient detail to enable the student to go on from them to read scholarly reviews with profit. This series of books is designed to satisfy this need. The authors have been asked to produce a brief outline of their subject assuming that their readers will have read and remembered much of a standard introductory textbook of biology. This outline then sets out to provide by building on this basis, the conceptual framework within which modern research work is progressing and aims to give the reader an indication of the problems, both conceptual and practical, which must be overcome if progress is to be maintained.
Book Synopsis Molecular Mechanism of Muscle Contraction by : Haruo Sugi
Download or read book Molecular Mechanism of Muscle Contraction written by Haruo Sugi and published by Springer. This book was released on 1988-05 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now widely recognized that fundamental progress in science is made not in a continuous manner but in a stepwise manner. In the field of the molecular mechanism of contraction in striated muscle, the stepwise progress was achieved by three great investigators in 1940's and 1950's. In the early 1940's, Albert Szent-Gyorgyi and his associates showed biochemically that muscle contraction is essentially an interaction between actin and myosin coupled with ATP hydrolysis. Then, in the 1950's, Hugh E. Huxley together with Jean Hanson demonstrated that striated muscle is composed of a hexagonal lattice of two kinds of interdigtating myofilaments consisting of action and myosin respectively, and made a monumental discovery that muscle contraction results from the relative sliding between the actin and myosin filaments. Andrew F. Huxley, who also participated in the discovery of the sliding filament mechanism of muscle contraction was attributed to the attachment-detachment cycle between the cross-bridges extending from the myosin filament and the complementary sites on the actin filament. After the above stepwise progress, however, muscle research appears to have entered into a period of so-called 'normal science' where detailed knowledge has been accumulating around the well established 'central dogmas' but without fundamental progress. More specifically, most experiments on muscle contraction mechanisms have been designed, carried out and interpreted on the basis of the Huxley's 1957 and the Huxley-Simmons' 1971 contraction models, as well as the kinetic scheme of actomyosin ATPase; but the molecular mechanism of contraction still remains to be a matter for debate and speculation. For further fundamental progress in this field of research, we feel it necessary to reconsider the validity of these dogmas and to interpret the results more freely. In 1978, one of us (H.S.) organized a symposium in Tokyo based on the above idea, and we published the proceedings under the title of "Cross-bridge Mechanism in Muscle Contraction" (ed. H. Sugi and G.H. Pollack, University of Tokyo Press/University Park Press, 1979). The unusual interest of muscle physiologists in this symposium encouraged us to organize a second symposium on muscle contraction in Seattle in 1982, and proceedings was again published under the title of "Contractile Mechanisms in Muscle" (ed. G.H. Pollack and H. Sugi, Plenum Publishing Corporation, 1984). We were again very much encouraged by the intense interest of the people at the symposium as well as by readers of the proceedings, and became convinced that the symposia of this kind would greatly accelerate the progress in this field. The present symposium was organized by one of us (H.S.) as the third "Cross-bride" symposium. Though most papers are concerned, as in the previous two symposia, with experiments on intact and demembranated muscle fibers and isolated myofibrils, where the three-Dimensional muofilament-lattice structures have been preserved, the results are frequently discussed in connection with the kinetics of actomyosin ATPase, reflecting the recent development of experimental methods connecting physiology and biochemistry. It has also become possible to obtain direct information about the orientation and configuration of the cross-bridges as various stages during muscle contraction.
Book Synopsis Molecular Mechanisms Underlying Assembly and Maintenance of the Neuromuscular Junction by : Ruth Herbst
Download or read book Molecular Mechanisms Underlying Assembly and Maintenance of the Neuromuscular Junction written by Ruth Herbst and published by Frontiers Media SA. This book was released on 2022-01-17 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies in Molecular Mechanisms of Skeletal Muscle Contraction by : Krishna Midde
Download or read book Studies in Molecular Mechanisms of Skeletal Muscle Contraction written by Krishna Midde and published by . This book was released on 2013 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Muscular contraction impacts virtually every physiological function in a human body. Nearly 50% of the body weight is contributed by muscle. Skeletal muscle contraction is responsible for performing every day general functions such as moving, grabbing things and lifting weights. Cardiac muscle contraction is responsible for blood circulation in the body and smooth muscle contraction is involved in the contraction of hollow organs such as lungs, stomach and kidneys. It also maintains body temperature. Central to these events is the transformation of energy derived by hydrolysis of ATP to mechanical force. The force generating steps of muscle contraction is thought to result from the interaction of actin and myosin proteins. Although much of the general knowledge of the mechanism of contraction has been known for over 50 years, emerging advanced techniques have identified some of the key intermediate steps and regulating parameters. My doctoral research involves utilizing one such high resolution technique - single molecule fluorescence spectroscopy. I have used it to discern the motion and conformation of myosin cross-bridges in ex-vivo muscle. When studying the dynamic behavior of actin and myosin it is essential to reduce the number of molecules under observation because 1. The local concentration of actin and myosin is dense and the information obtained by averaging trillions of molecules doesn't reflect the true character of the process. 2. The trajectory of an enzyme catalyzed reaction cannot be followed and the associated kinetics of actomyosin interaction is lost. 3. The situation becomes worse when studying mutations in sarcomeric proteins with low expression. 4. Heterogeneity between neighboring sarcomeres can be reduced. An important goal of muscle research is to measure the rate of the power stroke. Therefore, part of my thesis is focused on characterizing the pre- and post- power stroke states of muscle contraction. While the extent of force generated during muscle contraction is proportional to the extent of Ca2+ released into the muscle, some of the recent studies have shown that the phosphorylation of the regulatory light chain (RLC) of myosin also modulates contraction. Considering the importance of the phosphorylation of RLC, I investigated the distribution of orientation and kinetics of myosin cross-bridges in phosphorylated and de-phosphorylated muscle. Lastly, I have applied our fluorescence polarization technique with single molecule sensitivity to unravel the deranged contractile properties of muscle in people afflicted with Familial Hypertrophic Cardiomyopathy (FHC) disease. Some of the significant conclusions drawn from my project include evidence for the existence of distinct pre- and post- power stroke states of myosin cross-bridges during contraction in Ex Vivo muscle, Regulatory Light Chain phosphorylation disturbs cross-bridge organization and enhances the power stroke state of contraction and FHC induced by mutations in Troponin-T protein impairs myosin cross-bridge interaction with actin and alters cross-bridge kinetics. Clinically, drugs can be developed to modulate power stroke and enhance muscle performance in myopathies. Site targeted small molecules (peptides) can now be screened to correct for hypo-contractile or hyper-contractile properties associated with FHC. Our technique may also serve as a diagnosis tool for early identification of FHC disease. Finally increasing the basal ATPase activity of resting muscle by RLC phosphorylation is of therapeutic importance in treating individuals with Obesity, Type II Diabetes and Metabolic syndrome.
Book Synopsis Muscle Contraction and Cell Motility by : H. Sugi
Download or read book Muscle Contraction and Cell Motility written by H. Sugi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume intends to provide a comprehensive overview on the mecha nisms of muscle contraction and non-muscle cell motility at the molecu lar and cellular level, not only for investigators in these fields but also for general readers interested in these topics. A most attractive feature of various living organisms in the animal and plant kingdoms is their ability to move. In spite of a great diversity in the structure and function of various motile systems, it has frequently been assumed since the nineteenth century that all kinds of "motility" are essentially the same. Based on this assumption, some investigators in the nineteenth century thought that the mechanisms of motility could better be studied on primitive non-muscle motile systems such as amoeboid movement, rath er than on highly specialized muscle cells. Contrary to their expectation, however, the basic mechanisms of motility have been revealed solely by investigations on vertebrate skeletal muscles, since a monumental discovery of Szent-Gyorgyi and his coworkers in the early 1940s that muscle contraction results from the interaction between two different contractile proteins, actin and myosin, coupled with ATP hydrolysis.
