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Cet ouvrage offre une revue actualisée des thèmes essentiels de la biochimie pour acquérir un socle initial de connaissances, consolidée par de nombreux exercices d'application. Ce livre couvre les notions de biochimie fondamentales abordées au cours des études du premier cycle universitaire. Son approche progressive et enrichie d'exemples pratiques permet à l'étudiant de mieux intégrer les processus biochimiques. Après avoir abordé les notions de chimie de base nécessaires à la compréhension des réactions biochimiques, la première partie présente ensuite les biomolécules, leur nature polymérique et leurs fonctions biologiques. Sont abordées ensuite les grandes fonctions métaboliques et les réactions impliquées. La troisième partie aborde les trois thèmes de base de la biologie moléculaire d'un point de vue biochimique, à savoir : - la réplication et la réparation de l'ADN, - sa transcription en ARN - puis sa traduction en protéine.L'ouvrage réserve une place importante aux dernières recherches et applications en biochimie : l'acidification des océans, l'empreinte ADN, le pyroséquençage de l'ADN, le processus de développement des médicaments, l'ARN messager. Pour aider les étudiants à utiliser le texte comme livre de référence, chaque partie de chapitre commence par une série de Concepts Fondamentaux et se termine par une Révision des Concepts, pour l'autoévaluation. Chaque chapitre se termine par une série d'exercices corrigés. De nombreux exercices sont des études de cas basées sur des données de publications scientifiques ou sur des rapports médicaux. Les séries d'exercices peuvent ainsi servir au travail en classe ou être proposées pour un devoir à la maison. Les résumés et glossaires à la fin de chaque chapitre aident le lecteur à extraire l'essentiel et à contrôler l'acquisition des notions développées. Ce livre est destiné aux étudiants en 1er cycle de biochimie et de biologie, aux étudiants en sciences médicales, et à ceux préparant les concours de l'enseignement (Capes en particulier).

This textbook introduces readers in an accessible and engaging way to the nuts and bolts of protein expression and engineering. Various case studies illustrate each step from the early sequence searches in online databases over plasmid design and molecular cloning techniques to protein purification and characterization. Furthermore, readers are provided with practical tips to successfully pursue a career as a protein engineer. With protein engineering being a fundamental technique in almost all molecular biology labs, the book targets advanced undergraduates and graduate students working in molecular biology, biotechnology and related scientific fields.

This book focuses on some of the most significant advances in enzyme engineering that have been achieved through directed evolution and hybrid approaches. On the 25th anniversary of the discovery of directed evolution, this volume is a tribute to the pioneers of this thrilling research field, and at the same time provides a comprehensive overview of current research and the state of the art.Directed molecular evolution has become the most reliable and robust method to tailor enzymes, metabolic pathways or even whole microorganisms with improved traits. By mirroring the Darwinian algorithm of natural selection on a laboratory scale, new biomolecules of invaluable biotechnological interest can now be engineered in a manner that surpasses the boundaries of nature.The volume is divided into two sections, the first of which provides an update on recent successful cases of enzyme ensembles from different areas of the biotechnological spectrum, including tryptophan synthases, unspecific peroxygenases, phytases, therapeutic enzymes, stereoselective enzymes and CO2-fixing enzymes. This section also provides information on the directed evolution of whole cells. The second section of the book summarizes a variety of the most applicable methods for library creation, together with the future trends aimed at bringing together directed evolution and in silico/computational enzyme design and ancestral resurrection.

This book presents advanced expression technologies for the production of protein complexes. Since complexes lie at the heart of modern biology, the expression, purification, and characterization of large amounts of high-quality protein complexes is crucial for the fields of biomedicine, biotechnology, and structural biology. From co-expression in E. coli, yeast, mammalian and insect cells to complex reconstitution from individual subunits, this book offers useful insights and guidance for successful protein expressionists. Across several sections readers will discover existing opportunities for the production of protein complexes in bacterial systems (including membrane proteins and cell-free co-expression), methylotrophic and non-methylotrophic yeasts, protozoa (Leishmania terantolae and Dictyostelium discoideum), baculovirus-infected insect cells, mammalian cells, plants and algae. Complex reconstitution from individually purified subunits or subcomplexes is discussed as a complementary strategy. A last section introduces briefly some of the biophysical and structural characterization techniques for macromolecular complexes using state-of-the-art solution scattering and nuclear magnetic resonance. This work is a guided tour over some of the most powerful and successful protein expression technologies, with a focus on co-expression and high-throughput applications. It is addressed to everyone interested in the production and characterization of macromolecular complexes, from university students who want an accessible description of the major co-expression systems to researchers in biomedicine and the life sciences seeking for an up-to-date survey of available technologies.

With an emphasis on the fundamental and practical aspects of ADME for therapeutic proteins, this book helps readers strategize, plan and implement translational research for biologic drugs. • Details cutting-edge ADME (absorption, distribution, metabolism and excretion) and PKPD (pharmacokinetic / pharmacodynamics) modeling for biologic drugs• Combines theoretical with practical aspects of ADME in biologic drug discovery and development and compares innovator biologics with biosimilar biologics and small molecules with biologics, giving a lessons-learned perspective • Includes case studies about leveraging ADME to improve biologics drug development for monoclonal antibodies, fusion proteins, pegylated proteins, ADCs, bispecifics, and vaccines• Presents regulatory expectations and industry perspectives for developing biologic drugs in USA, EU, and Japan• Provides mechanistic insight into biodistribution and target-driven pharmacokinetics in important sites of action such as tumors and the brain

This new volume of Methods in Enzymology continues the legacy of this premier serial by containing quality chapters authored by leaders in the field. This volume covers methods in protein design and it has chapters on such topics as protein switch engineering by domain insertion, evolution based design of proteins, and computationally designed proteins. - Continues the legacy of this premier serial with quality chapters authored by leaders in the field - Covers methods in protein design - Contains chapters with such topics as protein switch engineering by domain insertion, evolution-based design of proteins, and computationally designed proteins

Handbook of Biologically Active Peptides, Second Edition, is the definitive, indispensable reference for peptide researchers, biochemists, cell and molecular biologists, neuroscientists, pharmacologists, and endocrinologists. Its chapters are designed to be a source for workers in the field and enable researchers working in a specific area to examine related areas outside their expertise. Peptides play a crucial role in many physiological processes, including actions as neurotransmitters, hormones, and antibiotics. Research has shown their importance in such fields as neuroscience, immunology, pharmacology, and cell biology. The second edition of Handbook of Biologically Active Peptides presents this tremendous body of knowledge in the field of biologically active peptides in one single reference. The section editors and contributors represent some of the most sophisticated and distinguished scientists working in basic sciences and clinical medicine. - Presents all aspects of biologically active peptides in one resource - Features more than 20 sections spanning plant, bacterial, fungal, venom, and invertebrate peptides to general peptides - Includes immunological, inflammatory, cancer, vaccine, and neurotrophic peptides - Discusses peptide precursors, mRNA distribution, processing, and receptors, not just pathophysiological implications

This book can be used to provide insight into this important application of biophysics for those who are planning a career in protein therapeutic development, and for those outside this area who are interested in understanding it better. The initial chapters describe the underlying theory, and strengths and weaknesses of the different techniques commonly used during therapeutic development. The majority of the chapters discuss the applications of these techniques, including case studies, across the product lifecycle from early discovery, where the focus is on identifying targets, and screening for potential drug product candidates, through expression and purification, large scale production, formulation development, lot-to-lot comparability studies, and commercial support including investigations.

In this volume, Prof. Ye and his coworkers propose and review the concept of nano-bio probe design for biochemical analysis on the basis of their recent published works. A unique biochemical analysis technology based on fluorescence polarization enhanced by nanoparticles is described here with successful applications in environmental monitoring, rapid and sensitive sensing protease activity and high-throughput screening of inhibitors. Furthermore, they introduce a versatile molecular beacon (MB)-like probe for the multiplex sensing of targets such as sequence-specific DNA, protein, metal ions and small molecule compounds based on the self-assembled biomolecule-graphene conjugates. Besides, some colorimetric and luminescence probes utilizing metal nanoparticles for biochemical applications are also presented, such as chiral enantiomer discrimination and separation, environmental monitoring, clinic diagnosis and etc.

This volume of Methods in Enzymology looks at Protein Engineering for Therapeutics. The chapters provide an invaluable resource for academics, researchers and students alike. With an international board of authors, this volume is split into sections that cover subjects such as Antibodies, Protein conjugates, Peptides, Enzymes and Scaffolds - Chapters provide an invaluable resource for academics, researchers and students alike - Iinternational board of authors - This volume is split into sections that cover subjects such as Antibodies, Protein conjugates, Peptides, Enzymes and Scaffolds

This volume explores some of the most exciting recent advances in basic research on molecular assembly in natural and engineered systems and how this knowledge is leading to advances in the various fields. - This series provides a forum for discussion of new discoveries, approaches, and idea - Contributions from leading scholars and industry experts - Reference guide for researchers involved in molecular biology and related fields

Site-specific mutagenesis of DNA, developed some thirty years ago, has proven to be one of the most important advances in biology. By allowing the site-specific replacement of any amino acid in a protein with one of the other nineteen amino acids, it ushered in the new era of'Protein Engineering'. The field of protein engineering has, however, evolved rapidly since then and the last fifteen years have witnessed remarkable advances through the use of new chemical, biochemical and molecular biological tools towards the synthesis and manipulation of proteins. The chapters included in this book reflect the rapid evolution of protein engineering and its many applications in basic research, biotechnology, material sciences and therapy. This book will provide the reader with an introduction to state-of the-art concepts and methods and will be of use to anyone interested in the study of proteins, in academia as well as in industry.

Computational methods impact all aspects of modern drug discovery and most notably these methods move rapidly from academic exercises to becoming drugs in clinical trials... This insightful book represents the experience and understanding of the global experts in the field and spotlights both the structural and medicinal chemistry aspects of drug design. The need to'encode'the factors that determine adsorption, distribution, metabolism, excretion and toxicology are explored, as they remain the critical issues in this area of research. This indispensable resource provides the reader with: •A rich understanding of modern approaches to docking •A comparison and critical evaluation of state-of-the-art methods •Details on harnessing computational methods for both analysis and prediction •An insight into prediction potencies and protocols for unbiased evaluations of docking and scoring algorithms •Critical reviews of current fragment based methods with perceptive applications to kinases Addressing a wide range of uses of protein structures for drug discovery the Editors have created and essential reference for professionals in the pharmaceutical industry and moreover an indispensable core text for all graduate level courses covering molecular interactions and drug discovery.

Amino Acids Biosynthesis presents the current knowledge of fundamental as well as applied microbiology of amino acids. Topics discussed are the amino acid biosynthetic pathways, their genetic and biochemical regulation, transport of amino acids and genomics of producing microorganisms. The characterization of the control mechanisms of amino acid biosynthesis has revealed insights into principles of genetic and biochemical regulation, such as transcriptional regulators and a new class of regulatory elements, the riboswitch. The volume further deals with the metabolic engineering of microorganisms for the biotechnological production of amino acids for use as pharmaceuticals and, particularly, as food and feed additives. Comprehensive reviews are given of recent achievements to enable or improve production of amino acids and dipeptides by fermentation and enzyme catalysis. Here, the particular focus is on metabolic engineering, the rational improvement of metabolic functions using recombinant DNA technology.

Advances in Enzymology and Related Areas of Molecular Biology covers the advances in enzymology, explaining the behavior of enzymes and how they can be utilized to develop novel drugs, synthesize known and novel compounds, and understand evolutionary processes.

Protein engineering is a fascinating mixture of molecular biology, protein structure analysis, computation, and biochemistry, with the goal of developing useful or valuable proteins. Divided into two sections, Protein Engineering Protocols reviews rational protein design strategies and directed evolutionary techniques, and their impact on protein engineering. The first section presents design and computational strategies for protein engineering focusing on designing a protein with desired properties, including examples covering a wide range of engineering techniques, such as protein-protein interactions, DNA binding, antibody mimics, and enzymatic activity. The second section on evolutionary techniques provides step-by-step instructions on library design and statistical assessment of library quality. New methods for DNA shuffling as well as different selection strategies are also presented. Following the successful Methods in Molecular Biology series format, this volume provides a comprehensive guide to the methods used at every stage of the engineering process. By combining a thorough theoretical foundation with detailed protocols, Protein Engineering Protocols will be invaluable to all research workers in the area, from graduate students to senior investigators.

Peptides play a crucial role in many physiological processes including actions as neurotransmitters, hormones, and antibiotics. Research has shown their importance in such fields as neuroscience, immunology, pharmacology, and cell biology. The Handbook of Biologically Active Peptides presents, for the first time, this tremendous body of knowledge in the field of biologically active peptides in one single reference. The section editors and contributors represent some of the most sophisticated and distinguished scientists working in basic sciences and clinical medicine. The Handbook of Biologically Active Peptides is a definitive, all-encompassing reference that will be indispensable for individuals ranging from peptide researchers, to biochemists, cell and molecular biologists, neuroscientists, pharmacologists, and to endocrinologists. Chapters are designed to be a source for workers in the field and will enable researchers working in a specific area to examine other related areas with which they would not ordinarily be familiar.•Chapters are designed to be a source for workers in the field and will enable researchers working in a specific area to examine other related areas that they would not ordinarily be familiar.•Fascinating relationships described in the book include the presence of some peptides originally found in frog skin that persist in the human human and brain where they can affect food intake and obesity.

The ability to introduce non-canonical amino acids in vivo has greatly expanded the repertoire of accessible proteins for basic research and biotechnological application. Here, the different methods and strategies to incorporate new or modified amino acids are explained in detail, including a lot of practical advice for first-time users of this powerful technique. Novel applications in protein biochemistry, genomics, biotechnology and biomedicine made possible by the expansion of the genetic code are discussed and numerous examples are given. Essential reading for all molecular life scientists who want to stay ahead in their research.

This MIE volume covers methods for a multitude of topics among which are computational methods, laboratory methods, enzyme optimization, binding proteins/antibodies, and screening technologies.Table of Contents-Methodology-Applications-Opzimization and Screening-Applications-Directed Evolution of Enzymatic Function-Applications-Evolution of Biosynthetic Pathways-Devices, Antibodies and Vaccines

The first synthetic peptides were produced a century ago. In the ensuing period, they have developed as valuable research tools that are readily available to all researchers. However, since most researchers do not make their own peptides, they are often unfamiliar with not only the synthetic chemistry but also with important and useful aspects of design, analysis, handling, and applications. This volume is the second edition of a volume that was first published 10 years ago. It is written by experts in the field who provide detailed descriptions as well as practical advice for producing and using synthetic peptides. The various chapters cover peptide design considerations, the synthetic chemistry, the evaluation of the synthetic product, and the modern applications of synthetic peptides. This includes the basic principles of peptide structure, analysis and chain assembly as well as the latest in selective disulfide bond formation, new strategies for the production of large peptides, and sequencing peptides by mass spectrometry. This book was designed with the intent of providing useful information both for the novices to the field as well as more seasoned practitioners. Its contents will help prevent problems commonly encountered and allow scientists to optimize their use of synthetic peptides.

Composed of contributions from experts in the chemical and biological sciences, it explores host-guest molecular interactions leading to the formation of molecular assemblies containing two or more species. Exciting applications are emerging in this field and it is expected that improved understanding of the interactions in synthetic host molecule complexes will lead to a better understanding of the more complex biological systems. Topics include biomimetic chemistry, preorganization, self-assembly, template-directed synthesis, antibiotic binding to peptides and DNA, interactions between proteins and other molecules.