This detailed book expands upon the previous edition with a collection of methods for those performing experimental work on small GTPases of the Rho family. Split into four sections, the volume explores computational modeling and imaging procedures, biochemical methods related to post-translational modifications of Rho GTPases as well as some high throughput methods, functional assays that allow for monitoring the consequences of manipulating Rho GTPases in a variety of cell types and cell biology processes, and techniques specifically designed for studies in selected non-mammalian model organisms (zebrafish, social ameba, plants and algae). Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on trouble shooting and avoiding known pitfalls. Authoritative and up-to-date, Rho GTPases: Methods and Protocols, Second Edition constitutes an invaluable tool for all those with an interest in this remarkable family of signaling proteins.

This brief discusses the mechanism of functional expression of a protein or protein complex utilizing the ATP hydrolysis cycle or proton-motive force from a unique point of view focused on the roles of water. A variety of processes are considered such as the unidirectional movement of a linear-motor protein along a filament, insertion of an unfolded protein into a chaperonin and release of the folded protein from it, transport of diverse substrates across the membrane by a transporter, and directed rotation of the central subunit within a rotatory motor protein complex. These topics are discussed in a unified manner within the same theoretical framework. The author argues that water plays imperative roles in the functional expression of these molecular machines. A pivotal factor is the entropic force or potential originating from the translational displacement of water molecules coexisting with the molecular machines in the entire system.

Presents Practical Applications of Mass Spectrometry for Protein Analysis and Covers Their Impact on Accelerating Drug Discovery and Development * Covers both qualitative and quantitative aspects of Mass Spectrometry protein analysis in drug discovery * Principles, Instrumentation, Technologies topics include MS of peptides, proteins, and ADCs , instrumentation in protein analysis, nanospray technology in MS protein analysis, and automation in MS protein analysis * Details emerging areas from drug monitoring to patient care such as Identification and validation of biomarkers for cancer, targeted MS approaches for biomarker validation, biomarker discovery, and regulatory perspectives * Brings together the most current advances in the mass spectrometry technology and related method in protein analysis

This Brief explores the use of proteomics as a tool for biomarker discovery in human reproduction and summarizes current findings and trends of proteomic studies in both male and female infertility. This simplifies this important but complex topic and equips the novice reader with sufficient background information on the use of proteomics in human reproduction. The up-to-date scenario on proteomic investigations will also appeal to researchers and post graduate students looking to keep abreast with the latest developments in reproductive research. This review summarizes current findings of contemporary proteomic studies on infertility in both males and females with various reproductive pathologies, and its use in predicting the outcome of assisted reproduction. In human reproduction, the search for biomarkers via proteomics is a fast-evolving approach that involves the analysis of proteins in the reproductive tissues and fluids, such as the male gametes, seminal plasma, ovarian and endometrial tissue, and follicular and uterine fluid. By comparing the protein profile of a healthy, fertile individual against that of an infertile individual, the differentially expressed proteins may give an indication to certain proteins that could serve as useful biomarkers that are related to infertility. As proteomic studies continue to unravel the dynamic proteome behind various infertility conditions, there is potential for the discovery of prognostic markers that could ultimately help in both natural and assisted human reproduction.

G protein-coupled receptors (GPCRs) are heptahelical transmembrane receptors that convert extra-cellular stimuli into intra-cellular signaling, and ultimately into biological responses. Since GPCRs are natural targets for approximately 40% of all modern medicines, it is not surprising that they have been the subject of intense research. Notwithstanding the amount of data generated over the years, discovering ligands of these receptors with optimal therapeutic properties is not straightforward and has certainly been hampered for years by the lack of high-resolution structural information about these receptors. Luckily, there has been a steady increase of high-resolution crystal structures of these receptors since 2007, and this information, integrated with dynamic inferences from computational and experimental methods, holds great potential for the discovery of new, improved drugs. This book, which provides, for the first time, state-of-the-art views on modeling and simulation of GPCRs, is divided into 4 parts. In the first part, the impact of currently available GPCR crystal structures on structural modeling is discussed extensively as are critical insights from simulations in the second part of the book. The third part reports recent progress in rational ligand discovery and mathematical modeling, whereas the fourth part provides an overview of bioinformatics tools and resources that are available for GPCRs.

This book addresses the differentiation control of skeletal muscle in different locations of the vertebrate body Particular attention is paid to novel regulatory molecules and signals as well as the heterogeneity of origin that have revealed a developmental overlap between skeletal and cardiac muscle. Different functional muscle groups are the product of the evolution of the vertebrate classes, making a phylogenetic comparison worthwhile for understanding the role of muscle stem cells and precursors in myogenesis. New insights into the hierarchy of transcription factors, particularly in the context of these different muscle groups have been gained from detailed investigations of the spatio-temporal and regulatory relationships derived from mouse and zebrafish genetics and avian microsurgery. Importantly, epigenetic mechanisms that have surfaced recently, in particular the role of MyomiRs, are also surveyed. With an eye to the human patient, encouraging results have been generated that identify parallels between embryonic myogenesis and regenerating myofibers due to common regulatory molecules. On the other hand, both processes differ considerably in quality and complexity of the processes employed. Interestingly, the heterogeneity in embryonic sources from which skeletal muscle groups in the vertebrate including the human body take origin is paralleled by differences in their susceptibility to particular muscle dystrophies as well as by the characteristics of the satellite cells involved in regeneration. The progress that has been made in the field of muscle stem cell biology, with special focus on the satellite cells, is outlined in this book by experts in the field. The authors review recent insights of the heterogeneous nature of these satellite cells regarding their gene signatures and regeneration potential. Furthermore, an improved understanding of muscle stem cells seems only possible when we study the impact of the cell environment on efficient stem cell replacement therapies for muscular dystrophies, putting embryological findings from different vertebrate classes and stem cell approaches into context.

The study of carbonic anhydrase has spanned multiple generations of scientists. Carbonic anhydrase was first discovered in 1932 by Meldrum and Roughton. Inhibition by sulfanilamide was shown in 1940 by Mann and Keilin. Even Hans Krebs contributed to early studies with a paper in 1948 showing the relationship of 25 different sulfonamides to CA inhibition. It was he who pointed out the importance of both the charged and uncharged character of these compounds for physiological experiments. The field of study that focuses on carbonic anhydrase (CA) has exploded in recent years with the identification of new families and isoforms. The CAs are metalloenzymes which are comprised of 5 structurally different families: the alpha, beta, gamma, and delta, and epsilon classes. The alpha class is found primarily in animals with several isoforms associated with human disease. The beta CAs are expressed primarily in plants and are the most divergent. The gamma CAs are the most ancient. These are structurally related to the beta CAs, but have a mechanism more similar to the alpha CAs. The delta CAs are found in marine algae and diflagellates. The epsilon class is found in prokaryotes in which it is part of the carboxysome shell perhaps supplying RuBisCO with CO2 for carbon fixation. With the excitement surrounding the discovery of disease-related CAs, scientists have redoubled their efforts to better understand structure-function relationships, to design high affinity, isotype-specific inhibitors, and to delineate signaling systems that play regulatory roles over expression and activity. We have designed the book to cover basic information of mechanism, structure, and function of the CA families. The authors included in this book bring to light the newest data with regard to the role of CA in physiology and pathology, across phylums, and in unique environmental niches.

In this thesis, the author outlines the development of new monolithic columns and isotope dimethyl labeling strategies and their applications in high-performance proteome analyses. Though different types of monolithic columns have been widely developed for chromatography and electrophoresis separation, their application in proteomics for complex peptide mixtures separation is still a challenge. The author discusses the preparation of new monolithic columns and optimization of chromatography separation capability to improve coverage and accuracy of proteome analysis. Further, the author describes a novel online multidimensional chromatography system combined with automated online isotope labeling, which significantly improves the throughput, sensitivity and accuracy of quantitative proteomics. In addition to the development of new technologies, the author investigates the proteome and phosphoproteome expression changes of clinical hepatocellular carcinoma tissues and the hippocampi of mice with Alzheimer’s disease. The work in this thesis has led to several publications in high-profile journals in the fields of analytical chemistry and proteome research.

With insolubility proving to be one of the most crippling bottlenecks in the protein production and purification process, this volume serves to aid researchers working in the recombinant protein production field by describing a wide number of protocols and examples. Insoluble Proteins: Methods and Protocols includes chapters that describe not only the recombinant protein production in different expression systems but also different purification and characterization methods to finally obtain these difficult-to-obtain proteins. Beginning with protein production methods using both prokaryotic and eukaryotic expression systems, the book continues with purification protocols using insoluble proteins, the characterization of insoluble proteins, as well as a general overview of interesting applications of insoluble proteins. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Comprehensive and practical, Insoluble Proteins: Methods and Protocols aims to provide the scientific community with detailed and reliable state-of-the-art protocols that are used in order to successfully produce and purify recombinant proteins prone to aggregate.

Exploring these type II trans-membrane proteins, The TNF Superfamily: Methods and Protocols focuses on various techniques to investigate aspects of the TNF Superfamily members in health and disease. Opening with protocols to understand the signaling process of TNF family members, this detailed volume continues with technical examples of investigating the role of TNF family members in physiopathologies, protocols on modulation of TNF signaling by pathogens, experimental applications of TNF-reporter mice, as well as methodologies for various assays of TNF family members and the production of recombinant molecules. Written for the Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols and tips on troubleshooting and avoiding known pitfalls. Practical and ready to use, The TNF Superfamily: Methods and Protocols will aid researchers investigating this key family of proteins, involved in vital processes such as providing signals for activation, differentiation, survival and death of cells, modulation of immune response and inflammation, hematopoiesis and osteoclastogenesis.

NMR spectroscopy has proven to be a powerful technique to study the structure and dynamics of biological macromolecules. Fundamentals of Protein NMR Spectroscopy is a comprehensive textbook that guides the reader from a basic understanding of the phenomenological properties of magnetic resonance to the application and interpretation of modern multi-dimensional NMR experiments on 15N/13C-labeled proteins. Beginning with elementary quantum mechanics, a set of practical rules is presented and used to describe many commonly employed multi-dimensional, multi-nuclear NMR pulse sequences. A modular analysis of NMR pulse sequence building blocks also provides a basis for understanding and developing novel pulse programs. This text not only covers topics from chemical shift assignment to protein structure refinement, as well as the analysis of protein dynamics and chemical kinetics, but also provides a practical guide to many aspects of modern spectrometer hardware, sample preparation, experimental set-up, and data processing. End of chapter exercises are included to emphasize important concepts. Fundamentals of Protein NMR Spectroscopy not only offer students a systematic, in-depth, understanding of modern NMR spectroscopy and its application to biomolecular systems, but will also be a useful reference for the experienced investigator.

This book provides a timely review of the role of histone modifications in epigenetic control of gene expression. Topics covered include: basic mechanisms of molecular recognition of histone post-translational modification (PTMs); combinatorial readout of histone PTMs by tandem epigenome reader domains; genome-wide profiling of histone PTM interactions; small molecule modulation of histone PTM interactions and their potential as a new approach to therapeutic intervention in human diseases. All chapters were written by leading scientists who made the original key discoveries of the structure and mechanism of evolutionarily conserved reader domains, which serve to direct gene transcription in chromatin through interactions with DNA-packing histones in a PTM-sensitive manner.

Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.

G Protein-Coupled Receptor Genetics: Research and Methods in the Post-Genomic Era features practical techniques inspired by the fast moving GPCR field. From powerful bioinformatic tools tracing the evolution of GPCRs, to methods for the cellular transfection of engineered viruses containing GPCRs, to optogenetic techniques that produce light-activated GPCRs in live mice, what was once science fiction is now science fact. This detailed volume includes sections covering genetic mechanisms, a genetic toolbox for GPCR discovery, as well as genetic aspects of G protein-coupled receptors in health and medicine. Written for the Methods in Pharmacology and Toxicology series, this book contains the kind of key implementation advice that encourages successful results in the lab. Authoritative and easy to use, G Protein-Coupled Receptor Genetics: Research and Methods in the Post-Genomic Era serves as an ideal guide for researchers aiming to continue our progress in this dynamic and exciting area of study.

This volume explores the myriad of techniques and methodological approaches that are being used in breast cancer research. The authors critically evaluate of the advantages and disadvantages of current methodologies, starting with the tools available for understanding the architecture of the human breast, including its tissue and cellular composition. The volume discusses the importance of functional studies in breast cancer research, especially with the help of laser capture microdissection, which allows the separation of small amounts of tissue, as well as specific cells, for biochemical analysis. In addition, the authors address methodologies including stem cell separation, which has helped in significantly understanding their role in normal breast development, but also further the understanding of breast cancer and its therapeutic management. The use of in vitro techniques and established cell lines for mechanistic studies in chemotherapeutic approaches have been invaluable will be discussed. Imaging techniques for evaluating in vitro and in vivo behavior of normal and cancerous breast tissue will be explored, as it provides a better understanding of the physiopathology of cancer. The volume will also discuss the molecular analysis of gene function in breast cancer through the transcriptomic and epigenomic profile. More importantly, the advancement of more refined techniques in sequencing will be covered. This monograph will be a comprehensive, authoritative and timely, as it addresses the emerging approaches used in breast cancer research.

Non-vesicular intracellular cholesterol transport is an important mechanism for maintaining membrane cholesterol homeostasis. Recent reports of studies directed at soluble cholesterol transport proteins indicate that aberrant expression of the START proteins may contribute to disease states associated with disorders in cholesterol homeostasis. This is an exciting new direction in the field and the purpose of this book will be to highlight the current research directed at potential roles for the START family in diabetes, cancer and atherogenesis. This book also provides a personal and historical perspective of the discovery-to-publication journey that the authors had for their particular START domain family member. The goal will be to provide perspectives to graduate students, post-doctoral fellows and endocrinology fellows on the research discovery process.

Stable Isotope Labeling by Amino Acids in Cell Culture (SILAC): Methods and Protocols provides a synopsis of a large array of different SILAC methods by presenting a set of protocols that have been established by renowned scientists and their working groups. These include methods and protocols for the labeling of various model organisms as well as advanced strategies relying on SILAC, e.g. for the analysis of protein interactions, the mapping of posttranslational modifications or the characterization of subcellular proteomes. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Stable Isotope Labeling by Amino Acids in Cell Culture (SILAC): Methods and Protocols will serve students and experienced scientists alike as a valuable reference of how to make use of the SILAC technology for their own research.

Cancer Genomics and Proteomics: Methods and Protocols, Second Edition includes methods for the analyses of cancer genome and proteome that have illuminated us about the changes in cancer cells. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Cancer Genomics and Proteomics: Methods and Protocols, Second Edition seeks to aid scientists in the further study into various aspects of tumor initiation and progression.

The main purpose of this volume is to provide a focused analysis of the function of the G protein-coupled signaling pathways that operate in the interconnected network of retinal neurons as they detect and encode the information carried by light. The organization of this volume will generally follow the path of signal flow in the retina. First we will describe recent advances in understanding the phototransduction cascade of rod and cone photoreceptors, which use signaling cascade based on the GPCR rhodopsin to transduce incident light into neural activity. Chapters will be devoted to unique specializations of the two major types of photosensitive cells that comprise the predominant input for our spatial and color vision. Subsequently, the mechanisms of synaptic information encoding by retinal ON bipolar cells will be described, where the GPCR mGluR6 plays a fundamental role. Chapters in this section will examine macromolecular organization of the mGluR6 signaling pathway as well as current understanding of its function. The functional characteristics of this signaling mechanism will be explored in detail. Additionally, this section will cover the role of dopamine receptors in modulating signal transmission between photoreceptors and ON-bipolar cells. Finally, chapters will be focused on the output neurons of the inner retina, ganglion cells, where the components of the emerging GPCR melanopsin cascade in intrinsically photosensitive ganglion cells will be detailed. Collectively these mechanisms allow the retina to represent visual space over a wide range of light intensities.

This first of two volumes provides a general overview of the genetics, structure, mechanism and regulation of the Ras superfamily proteins and describes in detail the signaling pathways and processes regulated by specific members of this family. The focus of this first volume is on the Rho and Ras subfamily of small G proteins. Renowned scientists provide insights into the biochemistry of the classical and non-classical small G-protein family members, their spatio-temporal regulation, their effectors and their roles in health and disease. Together with Volume 2, this book provides a comprehensive and state-of-the-art work on small G-proteins (GTPases). It is intended for graduates and professors in biochemistry and cell biology already working on small G-proteins (small GTPases), but also offers an extremely valuable resource for those readers who are new to the field.

Metalloproteins are involved in many key biological processes such as gas transport and metabolism, photosynthesis, cell respiration, the Krebs cycle and many other vital redox reactions. Metalloproteins: Methods and Protocols addresses multiple aspects of metalloenzyme research from the production and purification of metalloproteins using both standard recombinant techniques and a cell-free system, to the electrochemical analysis of metalloproteins, as well as IR techniques, Moessbauer spectroscopy and the theoretical interpretation of metalloenzyme catalytic and redox processes, to name a few topics. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Metalloproteins: Methods and Protocols seeks to serve both professionals and novices interested in the metalloprotein field.

The use of proteomics to study complex diseases such as cardiovascular disease, the leading cause of death in developed countries, has grown exponentially in recent years. Proteomics is a rapidly expanding investigation platform in cardiovascular medicine and is becoming integrated and incorporated into cardiovascular research. The proteomics field continues to develop with major improvements in mass spectrometry instrumentation, methodology and data analysis. Heart Proteomics: Methods and Protocols complies a selection of techniques and methods that target the numerous processes implicated in the pathophysiology of heart. Chapters cover protocols and updated methods in the heart proteomic area with a particular focus on MS-based methods of protein and peptide quantification and the analysis of posttranslational modifications as well as descriptions of system biology approaches, which provide a better understanding of normal and pathological processes. Written in the successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Heart Proteomics: Methods and Protocols is a representative selection of methods that will prove to be a useful resource for experienced proteomics practitioners and newcomers alike.

Proteolysis is an irreversible posttranslational modification affecting each and every protein from its biosynthesis to its degradation. Limited proteolysis regulates targeting and activity throughout the lifetime of proteins. Balancing proteolysis is therefore crucial for physiological homeostasis. Control mechanisms include proteolytic maturation of zymogens resulting in active proteases and the shut down of proteolysis by counteracting endogenous protease inhibitors. Beyond the protein level, proteolytic enzymes are involved in key decisions during development that determine life and death - from single cells to adult individuals. In particular, we are becoming aware of the subtle role that proteases play in signaling events within proteolysis networks, in which the enzymes act synergistically and form alliances in a web-like fashion. Proteases come in different flavors. At least five families of mechanistically distinct enzymes and even more inhibitor families are known to date, many family members are still to be studied in detail. We have learned a lot about the diversity of the about 600 proteases in the human genome and begin to understand their physiological roles in the degradome. However, there are still many open questions regarding their actions in pathophysiology. It is in this area where the development of small molecule inhibitors as therapeutic agents is extremely promising. Approaching proteolysis as the most important, irreversible post-translational protein modification essentially requires an integrated effort of complementary research disciplines. In fact, proteolytic enzymes seem as diverse as the scientists working with these intriguing proteins. This book reflects the efforts of many in this exciting field of research where team and network formations are essential to move ahead.

Protein Affinity Tags: Methods and Protocols provides researchers with the necessary information, tools, and strategy required for proper inquiry into a given protein's function and structure. Today's researchers can easily alter the amino acid sequence of any given protein, a powerful technology allowing for the precise engineering of specific proteins. Protein affinity tagging employs the use of known protein binding interactions in order to "fish out" a protein-of-interest or, with more advanced tags, a protein complex. This technology paired with recent advancements in DNA sequencing technology promises a future that is awash with novel genomic information - information that will not only expand our knowledge of the processes that govern life, but also fuel innovation that will undoubtedly conquer many of today's most salient health and environmental challenges. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Protein Affinity Tags: Methods and Protocols will be an invaluable resource to those seeking to employ protein affinity tags to study their biological system of interest.

Nuclear G-Protein Coupled Receptors: Methods and Protocols is a compilation of a number of conceptual and methodological aspects important for the validation and characterization of intacrine signaling systems. To date, the best-characterized intracrine signaling system is that of angiotensin II (Ang II), covered in depth in various chapters. Methodology to study the subcellular localization and function of GPCRs and other signaling systems is provided, as well as numerous chapters focusing on methods designed to understand signaling mediated by nuclear and other internal GPCRs. Methods are also described to study the formation of second messengers such as cAMP and to study the trafficking of receptors from the cell surface. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Nuclear G-Protein Coupled Receptors: Methods and Protocols seeks to serve both professionals and novices with state-of-the-art approaches to characterize what is becoming a common theme in cellular signaling.