Human exposure to toxic substances that cause cancer, reproductive abnormalities, and other adverse health effects is a topic of increasing interest to scientists, journalists, workers, business executives, advocacy groups, and the public at large. Citizen concern has prompted the government to establish an elaborate regulatory system designed to protect people from chemical exposures. Harnessing Science examines the role of science in toxic chemical regulation at the U.S. Environmental Protection Agency. The book postulates that scientific knowledge and advice from experts outside of government is critical to the competence and credibility of regulations designed to protect public health.

This unique volume takes a close look at the contributions of three specific organizations that were designed to improve regulatory science: the Chemical Industry Institute of Toxicology (CIIT), the Science Advisory Board of the EPA, and the Health Effects Institute. Early chapters trace the origins and histories of each of these three organizations. Then regulatory case studies of selected chemical substances (unleaded gasoline, perchloroethylene, formaldehyde, nitrates, and carbon monoxide) are used to assess the contributions of CIIT, SAB, and HEI. The final chapter makes specific recommendations designed to strengthen these organizations. Harnessing Science for Environmental Regulation is essential reading for anyone who is interested in how science influences regulatory decisions about human exposure to toxic chemicals. It will be of special interest to federal and state policy makers, practicing scientists, environmental advocates, risk assessors, corporate managers, and environmental journalists.

Microbial natural products have been an important traditional source of valuable antibiotics and other drugs but interest in them waned in the 1990s when big pharma decided that their discovery was no longer cost-effective and concentrated instead on synthetic chemistry as a source of novel compounds, often with disappointing results. Moreover understanding the biosynthesis of complex natural products was frustratingly difficult. With the development of molecular genetic methods to isolate and manipulate the complex microbial enzymes that make natural products, unexpected chemistry has been revealed and interest in the compounds has again flowered. This two-volume treatment of the subject will showcase the most important chemical classes of complex natural products: the peptides, made by the assembly of short chains of amino acid subunits, and the polyketides, assembled from the joining of small carboxylic acids such as acetate and malonate. In both classes, variation in sub-unit structure, number and chemical modification leads to an almost infinite variety of final structures, accounting for the huge importance of the compounds in nature and medicine.
* Gathers tried and tested methods and techniques from top players in the field.
* Provides an extremely useful reference for the experienced research scientist.
* Covers biosynthesis of Polyketides, Tarpenoids, Aminocoumarins and Crabohydrates

In this thesis single-molecule fluorescence resonance energy transfer (FRET) spectroscopy was used to study the folding of a protein that belongs to the large and important family of repeat proteins. Cohen shows that the dynamics of the expanded conformations is likely to be very fast, suggesting a spring-like motion of the whole chain. The findings shed new light on the elasticity of structure in repeat proteins, which is related to their function in binding multiple and disparate partners. This concise research summary provides useful insights for students beginning a PhD in this or a related area, and researchers entering this field.

This volume explores various methodologies to study biochemical, molecular, and cellular biology aspects of some processes regulated by protein SUMOylation. SUMO: Methods and Protocols is organized into four parts, and starts with an historical overview on protein SUMOylation and a presentation of the methods included in the book. The first part also includes a review on chromatin regulation by dynamic SUMO modifications. The second part focuses on in vitro techniques, including biochemical methods to study mechanistic aspects of protein SUMOylation. The third part includes protocols to be used with cell cultures, which often are the first approaches used in most laboratories. The final part includes methodologies adapted for the analysis in vivo using distinct model organisms. Written in the highly successful Methods in Molecular Biology series format, chapters include a brief introduction to the subject, a list of necessary materials and reagents, a step-by-step reproducible laboratory protocol ending with a Notes section on troubleshooting tips, and tips and strategies to avoid known pitfalls. Unique and cutting-edge, SUMO: Methods and Protocols provides a comprehensive source of protocols for specialists and researchers not familiar with this vital system.

Latest Edition: Textbook of Structural Biology (2nd Edition)This is an important textbook for undergraduate and graduate students in structural biology, chemistry, biochemistry, biology and medicine. Written by a team of leading scientists in the field, it covers all the essential aspects of proteins, nucleic acids and lipids, including the rise and fall of proteins, membranes and gradients, the structural biology of cells, and evolution - the comparative structural biology. The focus is on interesting and relevant molecular structures as well as central biology.This comprehensive volume is richly illustrated with more than 200 color figures. So far, there has been a lack of comprehensive textbooks on structural biology that are up to date; this book is written to fill the gap. An accompanying CD contains high-resolution images that can be projected in a classroom.

This volume provides a better understanding of the advancements in phenotypic readouts and improved disease models that generate novel biological insights and recapitulate clinically relevant biology. Chapters focus on phenotypic screening, the use of human cell models, microscopic approaches, assays to measure fat accumulation in C. elegans, the threat response in zebrafish, and protein-protein interactions in plant growth and development. 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. Authoritative and practical, Phenotypic Screening: Methods and Protocols aims to make phenotypic screening approaches more accessible to a wide array of researchers throughout the academic and biotech communities.

Fluorescent proteins are intimately connected to research in the life sciences. Tagging of gene products with fluorescent proteins has revolutionized all areas of biosciences, ranging from fundamental biochemistry to clinical oncology, to environmental research. The discovery of the Green Fluorescent Protein, its first, seminal application and the ingenious development of a broad palette of fluorescence proteins of other colours, was consequently recognised with the Nobel Prize for Chemistry in 2008.

"Fluorescent Proteins II" highlights the physicochemical and biophysical aspects of fluorescent protein technology beyond imaging. It is tailored to meet the needs of physicists, chemists and biologists who are interested in the fundamental properties of fluorescent proteins, while also focussing on specific applications. The implementations described are cutting-edge studies and exemplify how the physical and chemical properties of fluorescent proteins can stimulate novel findings in life sciences.

At the intersection of metabolite analysis, metabolic fingerprinting, and metabolomics, the study of metabolic profiling has evolved steadily over the course of time as have the methods and technologies involved in its study. In Metabolic Profiling: Methods and Protocols, expert researchers in the field present protocols that are illustrative of the evolution of metabolic profiling from single molecule analysis to global metabolome profiling. Comprised of the most essential techniques, this volume covers topics from inborn errors of metabolism and drug metabolite analysis to nuclear magnetic resonance metabolic profiles. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective subjects, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Metabolic Profiling: Methods and Protocols serves as a resource for both established and new investigators in this vital and ever-developing field.

The 2002 Nobel Prize in Physiology or Medicine was awarded to Sydney Brenner (United Kingdom), H. Robert Horvitz (US) and John E. Sulston (UK) "for their discoveries concerning genetic regulation of organ development and programmed cell death." Cell death is a fundamental aspect of embryonic development, normal cellular turnover and maintenance of homeostasis (maintaining a stable, constant environment) on the one hand, and aging and disease on the other. This volume addresses the significant advances with the techniques that are being used to analyze cell death.
* This volume provides the necessary, trusted methods to carry out this research on the latest techniques. Once researchers understand the molecular mechanisms of the apoptotic pathways, they can begin to develop new therapies.
* Presents key methods on studying tumors and how these cancer cells evade cell death.
* Eliminates searching through many different sources to avoid pitfalls so the same mistakes are not made over and over.

The third edition of this long-serving successful reference work is a 'must-have' reference for anyone needing or desiring an understanding of the structure, chemistry, properties, production and uses of starches and their derivatives.

* Includes specific information on corn, wheat, potato, rice, and new chapters on rye, oat and barley (including waxy barley) starches

* Covers the isolation processes, properties, functionalities, and uses of the most commonly used starches.

* Explores the genetics, biochemistry, and physical structure of starches

* Presents current and emerging application trends for starch

The lipid-rich and otherwise challenging nature of many key tissues complicates many aspects of current research, and applications of the unique nature of lipoproteins and their biological effects has engendered unique and vital methodologies. In Lipoproteins and Cardiovascular Disease: Methods and Protocols, experts in the field present a compendium of advanced and classical molecular biology methods targeted towards lipoprotein, atherosclerosis, and vascular biology research, bringing together in a single volume an updated set of protocols and strategies for methods now driving the most recent advances, along with classical methods that are still widely used. Among the many topics covered in this cutting-edge work, the book delves into crucial techniques such as quantitative real-time PCR, microarrays, RT-PCR laser capture microdissection, and tissue-specific gene overexpression, knockout, and knockdown methodologies, including AAV as a liver-directed gene delivery vehicle. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective subjects, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and valuable notes which highlight tips on troubleshooting and avoiding known pitfalls. Comprehensive and easy to use, Lipoproteins and Cardiovascular Disease: Methods and Protocols serves both novices and experts alike as a complete guide for any researcher with an interest in lipoproteins and their significant biological effects.

Plant taxonomy is an ancient discipline facing new challenges with the current availability of a vast array of molecular approaches which allow reliable genealogy-based classifications. Although the primary focus of plant taxonomy is on the delimitation of species, molecular approaches also provide a better understanding of evolutionary processes, a particularly important issue for some taxonomic complex groups."Molecular Plant Taxonomy: Methods and Protocols"describes laboratory protocols based on the use of nucleic acids and chromosomes for plant taxonomy, as well as guidelines for phylogenetic analysis of molecular data. Experts in the field also contribute review and application chapters that will encourage the reader to develop an integrative taxonomy approach, combining nucleic acid and cytogenetic data together with other crucial information (taxonomy, morphology, anatomy, ecology, reproductive biology, biogeography, paleobotany), which will help not only to best circumvent species delimitation but also to resolve the evolutionary processes in play.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, "Molecular Plant Taxonomy: Methods and Protocols"seeks to provide conceptual as well as technical guidelines to plant taxonomists and geneticists."

The account in this inaugural volume of the series covers the period 1900 to 1960, but also outlines the principal developments in earlier centuries from which biochemistry emerged. Findings are considered in the light of present knowledge, rather than in a rigid historical framework.

Ribonucleases are a ubiquitous and functionally diverse group of enzymes that have a common ability to cleave RNA. Either through scission of internal phosphodiesters, or removal of nucleotides from RNA 5' or 3' ends, ribonucleases perform essential roles in gene expression and regulation, genome replication and maintenance, host defense, stress response, and viral strategies of infection. Ribonucleases have also served as highly informative models to understand virtually every aspect of biomolecular structure and function. The fifteen chapters in this volume are written by recognized researchers in the field, and provide in-depth analyses of the major ribonuclease families. Particular focus is given to the relation of ribonuclease structure and mechanism to biological function, as well as ribonuclease dysfunction in certain disease states. Other topics include the evolutionary genetics and functional diversification of ribonucleases, engineered ribonucleases as anti-cancer agents, the mechanisms of action of artificial ribonucleases, and ribonucleases as models to understand protein folding and stability. This volume should serve as an essential reference for a broad range of researchers and educators with interests in RNA metabolism, enzymology, and gene regulation.

The discovery that nitrogen monoxide or nitric oxide (NO)is a biologically produced free radical has revolutionized our thinking about physiological and pathological processes. This discovery has ignited enormous interest in the scientific community. When generated at low levels, NO is a signaling molecule, but at high concentration, NO is a cytotoxic molecule. The physiological and pathological processes of NO production and metabolism and its targets, currently areas of intensive research, have important pharmacologic implications for health and disease.

DNA and RNA fractions have been isolated from the whole blood, serum, plasma, the surface of blood cells, urine, saliva and spinal fluid from both healthy individuals and clinical patients. Recent developments are presented concerning the isolation, quantification and analysis of these molecules and their use in the identification of specific nucleic acid fragments related to a variety of clinical disorders thereby permitting their early diagnosis and prognosis.

The goal of the characterization and discovery of G protein-coupled receptors, arguably the most important class of signaling molecules in humans and other vertebrates, has spawned numerous vital methodologies. In "Methods for the Discovery and Characterization of G Protein-Coupled Receptors," experts in the field present the very latest on the methods and technology used to characterize and discover novel mechanisms of GPCRs which, in many cases, can be used directly to design experiments for the reader s particular GPCR of interest and their specific avenue of investigation. Divided into four convenient sections, this detailed volume covers GPCRs in the genome, trafficking of GPCRs, GPCRs on the membrane, as well as the regulation of these key receptors. Chapters also feature an important section called Future Directions which gives the reader an insight into advances soon to be realized in each area. Written for the popular "Neuromethods" series, this book contains the kind of detailed description and implementation advice that is crucial for getting optimal results.

Authoritative and cutting-edge, "Methods for the Discovery and Characterization of G Protein-Coupled Receptors" serves as an ideal guide for scientists determined to further our knowledge of crucially important set of receptors.

Introduction to Electron Microscopy for Biologists is ideal for the scientist who may be considering electron microscopy as a tool to extend molecular, biochemical, or light microscope observations to the next level of structural information, only available by electron microscopy. Each chapter briefly surveys the present state of structural information in a particular area, be it an individual but widely occurring molecule such as actin or collagen, together with the methods for visualization, either as an extracted and purified entity, or in situ within its biological context. Not only is this book an introduction to electron microscopy in general, but it is also useful for those within the field who wish to move to a different area of expertise, for instance an approach based on rapid freezing, rather than more conventional protocols. This should be a first choice reference for any biologist wanting to know 'what does it look like' across the full spectrum of cell and molecular biology of life science.
*Illustrates the advantages of electron microscopy and the protocols required for fine structural visualization of individual molecules upwards, ranging from mammalian tissues to experimental organisms.
*Comprehensive chapters cover both structural information on each area as well as the protocols themselves
*Includes methods covering specific labeling, as well as methods for quantification and three dimensional reconstruction from molecular to tissue levels.

Presenting a new way to examine water quality criteria, this volume provides concise, critical reviews of timely advances in the field of xenobiotics. The text explores the research findings and procedures of The University of California-Davis Methodology for Deriving Aquatic Life Pesticide Water Quality Criteria.

The Nobel Prize was awarded in Physiology or Medicine in 1998 to Louis J. Ignarro, Robert F. Furchgott and Ferid Murad for demonstrating the signaling properties of nitric oxide. Nitric Oxide (NO) is one of the few gaseous signaling molecules and is a key biological messenger that plays a role in many biological processes. NO research has led to new treatments for treating heart as well as lung diseases, shock and impotence. (Sildenafil, popularly known by the trade name Viagra, enhances signaling through nitric oxide pathways.) Scientists are currently testing whether NO can be used to stop the growth of cancerous tumors, since the gas can induce programmed cell death, apoptosis.
This is another "must-have" volume packed with robust methods from authors around the globe. Researchers interested in the detailed biochemistry of nitric oxide and its synthesis will have this indispensable volume on their shelves.
*Essential resource for every laboratory involved in NO-related work
*Gathers tried and tested techniques from global labs which eliminates searching through many different sources and avoids pitfalls so the same mistakes are not made over and over.
* Aids researchers in the design of medically important therapies for heart disease and cancer

"Current Topics in Membranes" provides a systematic, comprehensive, and rigorous approach to specific topics relevant to the study of cellular membranes. Each volume is a guest edited compendium of membrane biology.
*Discusses the current stat of electrostatics in biomolecular simulations and future directions
*Includes information on time and length scales in lipid bilayer simulations
*Includes a chapter on the nature of lipid rafts

This thesis describes an in-depth study of an indolizine-based fluorophore, from understanding of its structure-photophysical property relationship to its application as a useful biological reporter. Organic fluorophores have been extensively used in the field of molecular biology owing to their excellent photophysical property, suitable cell permeability, and synthetic flexibility. Understanding of the structure-photophysical property relationship of a given fluorophore often paves the road to the development of valuable molecular probes to visualize and transcribe biological networks. In this thesis, respective chapters deal with molecular design, organic synthesis, structure-property analysis, and quantum-mechanical interpretation of unexplored family of indolizine-based molecules. This systematic exploration has led to rational development of a new microalgae lipid droplet probe, colorful bioorthogonal fluorogenic probes, and a bright mitochondrial probe, working under live cell conditions. Harnessing the optical properties of a given fluorophore has been an important topic for a couple of decades, both in industry and in academia. This thesis provides useful insights for the improvement and development of unique small fluorescent materials, or optical materials.

The intent in initiating this volume was to bring together a series of essays which would define our present understanding of the endosome and lysosome and their interrelationship. The editors deliberately encouraged the contributors to be speculative; to strive to put order to the "real" world of incomplete and sometimes conflicting data. Seeing science from the laboratory bench can often be like viewing an impressionistic painting from up close; a series of paint dabs with no apparent order. The contributors to this volume were asked to step back and leave the reader with a sense of the whole as well as the detail. To the extent that this has happened, the credit should go to the individual authors.
Our understanding of endosomes and lysosomes has undergone a molecular revolution over the last decade. Hence, we now know much about the molecular features required for internalization of an endocytic receptor, or the function of mannose 6-phosphate receptors in the transport of lysosomal enzymes. We can trace and follow the flow of molecules. In this volume current molecular knowledge concerning the function and relationship of endosomes and lysosomes is presented. Because of this vast increase in knowledge of molecules, we have realized that endosomes in particular are very ephemeral organelles. In fact, endosomes may well not be discrete entities but rather continuously changing and evolving in their molecular composition. The dynamic nature of the relationship between endosomes and lysosomes is the unifying focus of the genetic, biochemical, microscopic, and molecular biological approaches described in the chapters which follow.