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New Approaches in Cell Biology focuses on the introduction of''new trends''in cell biology. Divided into 14 chapters, the book contains the works of authors who have diligently conducted studies on the emergence of''new trends''in cell biology. The book first provides information on the process involved in the nuclear transfer of embryonic cells, and then proceeds with discussions on cellular inheritance, genetic components of lampbrush chromosomes, and the morphology of developing systems at the ultramicroscopic level. The text also notes the origin of the nucleus following mitotic cell division, including the types of chromosomal vesicle, nuclear membrane, and nucleoplasm. The discussions also focus on biochemical approaches to cell morphology; the relationship of paper chromatography with genetics and taxonomy; and the mechanisms in active transport systems. The matching of drugs to tumors, cytochemistry of proteins and nucleic acids, and the use of flying spot microscopy in research are also noted. The book is a vital source of information for readers interested in the pursuit of''new approaches''in cell biology.

Gas molecules such as O2, NO, CO and ethylene are present in the environment and are endogenously (enzymatically) produced to act as signalling molecules in biological systems, including the regulation of metabolic networks, chemotaxis, circadian rhythms, mammalian hypoxia responses, and plant ethylene responses by transcriptional, translational, or post translational control. Sensing these gas molecules is the first step in their acting as signalling molecules. When a sensor domain/protein senses an external signal, intra- and inter-molecular signal transductions take place to regulate the biological function of a regulatory domain/protein such as DNA-binding, enzymatic activity, or protein–protein interaction. Interaction between gas molecules and sensor proteins is essential for recognition of gas molecules. Metal-containing prosthetic groups such as haem, iron–sulfur clusters, and non-haem iron centres are widely used. As these metal-containing centres are good spectroscopic probes, detail characterizations have utilized spectroscopic techniques along with X-ray crystallography.Covering both the signalling and sensing of gaseous molecules, this book provides the first comprehensive overview of gas sensor proteins in both prokaryotic and eukaryotic cells. This book will be particularly interesting to postgraduates and researchers in biochemistry, molecular biology and metallobiology.

The origin of cells remains one of the most fundamental problems in biology, one that over the past two decades has spawned a large body of research and debate. With In Search of Cell History, Franklin M. Harold offers a comprehensive, impartial take on that research and the controversies that keep the field in turmoil. Written in accessible language and complemented by a glossary for easy reference, this book investigates the full scope of cellular history. Assuming only a basic knowledge of cell biology, Harold examines such pivotal subjects as the relationship between cells and genes; the central role of bioenergetics in the origin of life; the status of the universal tree of life with its three stems and viral outliers; and the controversies surrounding the last universal common ancestor. He also delves deeply into the evolution of cellular organization, the origin of complex cells, and the incorporation of symbiotic organelles, and considers the fossil evidence for the earliest life on earth. In Search of Cell History shows us just how far we have come in understanding cell evolution—and the evolution of life in general—and how far we still have to go.

This book provides a premier resource on understanding the ribosome's essential nature and how it interacts with other proteins and nucleic acids to control protein synthesis. As one of the central foundations in our understanding of the biology at the molecular level, this topic appeals to a wide audience, from bench researcher to clinician. With the advent of atomic scale structures, methods to visualize and separate individual molecules, and the computational power to model the complex interactions of over a million atoms at once, our understanding of how gene expression is controlled at the level of protein translation is now deeply ensconced in the biophysical realm.

All living cells are made up of an extraordinary collection of tiny molecular machines, which orchestrate the millions of tasks needed for life. Cells build these machines for a variety of purposes: to digest food, to propel them to fertile feeding grounds or away from predators, to store the genetic blueprint, and to fight disease-causing invaders. The Machinery of Life is a journey into the sub-microscopic world of molecular machines. The reader is first introduced to the types of molecules built by cells: proteins, nucleic acids, lipids, and polysaccharides. In a series of distinctive illustrations, the reader is then guided through the interior world of cells, exploring the ways in which molecules work in concert to perform the processes of living. Finally, the book shows how vitamins, viruses, poisons, and drugs each have their effects on the molecules in our bodies. The author and illustrator, David Goodsell, has prepared a fascinating introduction to biochemistry for the nonspecialist. This book combines a clear text with an abundance of drawings and computer graphics that present the world of cells and their components in a new and unique way.

Proteins constitute the working-class molecules of the cell. Hence, understanding the way they act is a prerequisite for understanding how a cell functions and how life evolves. Aspects such as the protein-ligand relationship, recognition, protein evolution by point mutation, enzyme-substrate interactions, behaviour of an enzyme in a living cell, control and dynamics of enzyme networks as well as the physico-chemical background of enzyme actions and multi-enzyme complexes are comprehensively treated in this volume.

This volume of Methods in Enzymology is the first of three parts looking at current methodology for the imaging and spectroscopic analysis of live cells. The chapters provide hints and tricks not available in primary research publications. It is an invaluable resource for academics, researchers and students alike. Expert authors who are leaders in the field Extensively referenced and useful figures and tables Provides hints and tricks to facilitate reproduction of methods

This volume of Methods in Enzymology is the third of 3 parts looking at current methodology for the imaging and spectroscopic analysis of live cells. The chapters provide hints and tricks not available in primary research publications. It is an invaluable resource for academics, researchers and students alike. The third of 3 parts looking at current methodology for the imaging and spectroscopic analysis of live cells The chapters provide hints and tricks not available in primary research publications It is an invaluable resource for academics, researchers and students alike

This volume of Methods in Enzymology is the second of three parts looking at current methodology for the imaging and spectroscopic analysis of live cells. The chapters provide hints and tricks not available in primary research publications. It is an invaluable resource for academics, researchers and students alike. Expert authors who are leaders in the field Extensively referenced and useful figures and tables Provides hints and tricks to facilitate reproduction of methods

The book presents the first comprehensive molecular theory of the living cell ever published since the cell doctrine was formulated in 1838-1839. It introduces into cell biology over thirty key concepts, principles and laws imported from physics, chemistry, computer science, linguistics, semiotics and philosophy. The author formulates physically, chemically and enzymologically realistic molecular mechanisms to account for basic living processes such as ligand-receptor interactions, enzymic catalysis, force-generating mechanisms in molecular motors, chromatin remodelling, and signal transduction. Possible solutions to basic and practical problems facing contemporary biology and biomedical sciences have been suggested, including pharmacotherapeutics and personalized medicine.

Chloroplasts are vital for life as we know it. At the leaf cell level, it is common knowledge that a chloroplast interacts with its surroundings – but this knowledge is often limited to the benefits of oxygenic photosynthesis and that chloroplasts provide reduced carbon, nitrogen and sulphur. This book presents the intricate interplay between chloroplasts and their immediate and more distant environments. The topic is explored in chapters covering aspects of evolution, the chloroplast/cytoplasm barrier, transport, division, motility and bidirectional signalling. Taken together, the contributed chapters provide an exciting insight into the complexity of how chloroplast functions are related to cellular and plant-level functions. The recent rapid advances in the presented research areas, largely made possible by the development of molecular techniques and genetic screens of an increasing number of plant model systems, make this interaction a topical issue.

Imagine that we had some way to look directly at the molecules in a living organism. An x-ray microscope would do the trick, or since we're dreaming, perhaps an Asimov-style nanosubmarine (unfortunately, neither is currently feasible). Think of the wonders we could witness firsthand: antibodies atta- ing a virus, electrical signals racing down nerve fibers, proteins building new strands of DNA. Many of the questions puzzling the current cadre of sci- tists would be answered at a glance. But the nanoscale world of molecules is separated from our everyday world of experience by a daunting million-fold difference in size, so the world of molecules is completely invisible. I created the illustrations in this book to help bridge this gulf and allow us to see the molecular structure of cells, if not directly, then in an artistic rendition. I have included two types of illustrations with this goal in mind: watercolor paintings which magnify a small portion of a living cell by one million times, showing the arrangement of molecules inside, and comput- generated pictures, which show the atomic details of individual molecules. In this second edition of The Machinery of Life, these illustrations are presented in full color, and they incorporate many of the exciting scientific advances of the 15 years since the first edition.

This book presents the latest findings in mechanosensitivity of the nervous system. The nervous system stands out from a number of tissues because besides reacting to the mechanical stress it is transmitting its own response to other organs and tissues, which are located downstream of its signaling pathway. For this reason any type of mechanical stimulation of the nervous system, which is capable of triggering a physiological response, has high scientific and practical significance, since it allows its use beyond a particular experimental model anywhere where it is contributing to a particular pathological condition. This book is a unique collection of reviews outlining the current knowledge and the future developments in this rapidly growing field. Currently, investigations of the effects of mechanical stress on the nervous system are focused on several issues. The majority of studies investigate the effects of mechanical stimulation on mechanosensitive channels, as its primary target and interactive agent, and aim on description of downstream intracellular signaling pathways together with addressing general issues of biomechanics of the nervous system. Knowledge of biomechanics, and mechanisms, which underlie it on organism, organ, tissue and cellular level, is necessary for understanding of the normal functioning of living organisms and allows to predict changes which arise due to alterations of their environment, and possibly will allow to develop new methods of artificial intervention. The book brings up the problem closer to the experts in related medical and biological sciences as well as practicing doctors besides just presenting the latest achievements in the field.

After division, plant cells are able to increase their volume enormously by cell expansion, making the expanding cell a crucial player in the production of biomass. The study of plant cell expansion involves many different disciplines and technical approaches, and this book is the first attempt to bring this diversity together to present a multifaceted view of the most up-to-date knowledge. Included are data ranging from biophysical measurements and chemical analysis to molecular biological approaches and microscopy.

The critically acclaimed laboratory standard for more than forty years, 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. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today-truly an essential publication for researchers in all fields of life sciences.

Recent advances in molecular and biophysical techniques, particularly fluorescence and live cell imaging, are revolutionizing the study of cell motility. New bioprobes not only reveal simple intracellular localization, but also contain details of post-translational modifications, conformational state and protein-protein interactions. Coupling these insights with complementary advances in genetic and biochemical methods is enabling scientists to understand the processes involved in cell motility - from molecular motors to cell movements in vivo in a range of organisms and cell types. This book features landmark essays that provide an up to date and fascinating account of current research and concepts in cell motility.These cover the roles of molecular motors that drive movement and their interactions with the cytoskeleton as well as membrane dynamics that allow cells to change shape and to move. Cell motility plays a key role in development - there are chapters on the genetics of cell migration, the regulation of contact repulsion in growth cones, and the progression from cell migration to cell-cell adhesion. Cell motility is directional - experts describe the molecules that regulate chemotaxis, allowing cells to migrate along pathways specified by chemical gradients. Finally, cell motility can be perturbed by mutation--metastasis occurs when cells lose their normal intercellular interactions and invade other tissue types. All these processes are regulated by signals from the environment, including other tissues in the body, and the various molecules that transmit and transduce these signals are discussed. This book is a'must read'for cell biologists working in a variety of fields, from development to wound healing, at all levels - post-doctoral fellows, post-graduate students and lab technicians. It is also stimulating reading for molecular and developmental biologists, biophysicists and biochemists.

International Review of Cytology presents current advances and comprehensive reviews in cell biology--both plant and animal. Articles in this volume address such topics as cytoskeleton-dependent transport and localization of nRNA, special cytochemistry in cell biology, plasticity and stabilization of neuromuscular and CNS synapses, adipokinetic hormones of insects, and iron metabolism in mammalian cells. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research.

International Review of Cytology presents current advances and comprehensive reviews in cell biology-both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research. How the Assembly Dynamics of the Nematode Major Sperm Protein Generate Amoeboid Cell Motility Functional Specificity of Actin Isoforms Cell Biology of Cardiac Development Role of Programmed Cell Death in Development Reversible Vacuolation of T-Tubules in Skeletal Muscle: Mechanisms and Implications for Cell Biology

International Review of Cytology presents current advances and comprehensive reviews in cell biology--both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research.

This volume contains information on analyzing sphingolipids, sphingolipid transport and trafficking, and sphingolipid-protein interactions and cellular targets. Its companion Volume 311 presents methods used in studying enzymes of sphingolipid biosynthesis and turnover, including inhibitors of some of these enzymes, genetic approaches, and organic and enzymatic syntheses of sphingolipids and analogs. The critically acclaimed laboratory standard for more than forty years, 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. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today--truly an essential publication for researchers in all fields of life sciences.

Sphingolipids are found in all eukaryotic and in some prokaryotic organisms and provide structure for cell membranes, lipoproteins, and other biological materials as well as participate in the regulation of cell growth, differentiation, and diverse cell functions, including cell-cell communication, cell-substratum interactions, and intracellular signal transduction. This volume presents methods used in studying enzymes of sphingolipid biosynthesis and turnover, including inhibitors of some of these enzymes, genetic approaches, and organic and enzymatic syntheses of sphingolipids and analogs. Its companion Volume 312 will contain information on analyzing sphingolipids, sphingolipid transport and trafficking, and sphingolipid-protein interactions and cellular targets.The critically acclaimed laboratory standard for more than forty years, 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. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today--truly an essential publication for researchers in all fields of life sciences.

Submicroscopic Cytochemistry, Volume II: Membranes, Mitochondria, and Connective Tissues presents laboratory findings and theoretical aspects of the cytochemistry of cellular membranes, mitochondria, and connective tissues. Emphasis is on the molecular and macromolecular organization of cellular membranes, along with the origin and distribution of the major macromolecular aggregates of connective tissue. This volume consists of 11 chapters and begins by discussing the results of cytochemical studies on lipid and protein components of membranes in acinar and hepatic cells of the murine pancreas. The following chapters focus on densitometric studies of lipid membranes in pancreatic acinar cells of the mouse; the distribution of lipids and proteins in mitochondria of hepatic and exocrine pancreatic cells of adult mice, and of nucleic acids in mitochondria of embryonic cells; and possible precursor granules in fibroblasts, chondrocytes, and osteoblasts. The distribution of DNA and of soluble and insoluble RNAs in chondrocytes of the epiphyseal plate of the rat tibia is also examined, along with vascularity in tendons of young rats. This monograph will be of interest to cytochemists, biochemists, and molecular biologists.

Maximizing Gene Expression focuses on prokaryotic and eukaryotic gene expression. The book first discusses E. coli promoters. Topics include structure analysis, steps in transcription initiation, structure-function correlation, and regulation of transcription initiation. The text also highlights yeast promoters, including elements that select initiation sites, transcription regulation, regulatory proteins, and upstream promoter elements. The text also describes protein coding genes of higher eukaryotes; instability of messenger RNA in bacteria; and replication control of the ColE1-type plasmids. The text then describes translation initiation, including the translation of prokaryotes and eukaryotes. The book puts emphasis on the selective degradation of abnormal proteins in bacteria. Topics include proteins rapidly hydrolyzed in E. coli; intracellular aggregates of abnormal polypeptides; energy requirement and pathway for proteins; proteolytic enzymes in E. coli; and regulation of ion expression. The text also highlights the detection of proteins produced by recombinant DNA techniques and mechanism and practice. The book is a good source of information for readers wanting to study gene expression.

A comprehensive review of current thinking on the biosynthesis, function and evolution of secondary metabolites in animals, plants and microorganisms. Examines the traditional context of secondary metabolites as natural products having no obvious part to play in the producing organism's life cycle. Covers issues related to genetic and antibiotic applications.

Cellular Membranes in Development covers the proceedings of the 1963 22nd Symposium on''The Society for the Study of Development and Growth''held in Storrs, Connecticut. This book is organized into 10 chapters that discuss the properties, isolation, function, composition, and physiological aspects of membranes. After briefly dealing with the principles of the unit membrane concept, the book describes the properties of lipid membranes of bilayer thickness with biological relevance. The next chapter focuses on hepatic cell and the modifications of the endoplasmic reticulum in cell differentiation in normal and cancerous growth. Another chapter describes the developmental changes in a particular experimental systems and the modification of the membranes by specific treatments using the apical portion of the primary root of Zea mays. The book also discusses the role of the different organelles in development, supporting the idea of topological continuity between the membranes of all the organelles except the mitochondria. Other chapters describe the cytology of oogenesis and fertilization in Pteridium aquilinum; the early events of fertilization in Hydroides and Saccoglossus; and the composition of cell walls of bacteria, yeast, and fungi. Some aspects of the capsules, microcapsules, and sheaths exhibited by some microorganisms are also covered. The last chapters deal with the quantitative aspects of plant cell permeation and permeability function and changes in relation to maturation and growth hormones. The book is an ideal source for cell biologists and researchers, evolutionists, and biochemists.