This book aims at providing a brief but broad overview of biosignatures. The topics addressed range from prebiotic signatures in extraterrestrial materials to the signatures characterising extant life as well as fossilised life, biosignatures related to space, and space flight instrumentation to detect biosignatures either in situ or from orbit. The book ends with philosophical reflections on the implications of life elsewhere. In the 15 chapters written by an interdisciplinary team of experts, it provides both detailed explanations on the nature of biosignatures as well as useful case studies showing how they are used and identified in ancient rocks, for example. One case study addresses the controversial finding of traces of fossil life in a meteorite from Mars. The book will be of interest not only to astrobiologists but also to terrestrial paleontologists as well as any reader interested in the prospects of finding a second example of life on another planet.

This book places oxygen on the center stage of chemistry in a manner that parallels the focus on carbon by 19th century chemists. One measure of the significance of oxygen chemistry is the greater diversity of oxygen-containing molecules than of carbon-containing molecules. One of the most important compounds is water, containing the properties of being a unique medium for biological chemistry and life, the source of all the dioxygen in the atmosphere, and the moderator of the earth's climate. Sawyer first introduces the biological origins of dioxygen and role of dioxygen in aerobic biology and oxidative metabolism, and in separate chapters discusses the oxidation-reduction thermodynamics of oxygen species, and the nature of the bonding for oxygen in its compounds. Additional chapters focus on the reactivities of specific oxygen compounds. The book will be of interest to chemists and biochemists, as well as graduate students, life scientists, and medical researchers.

This 8-volume set provides a systematic description on 8,350 active marine natural products from 3,025 various kinds of marine organisms. The diversity of structures, biological resources and pharmacological activities are discussed in detail. Molecular structural classification system with 264 structural types are developed. The 4th volume continuously illustrates the molecular formula and structures of alkaloids.

The topic of this book, Collectins, is a family of proteins whose major function is in innate immunity, where Collectins act as pattern recognition receptors (PRRs). In general they recognize targets such as microbial surfaces and apoptotic cells, and once bound to a target, Collectins promote the clearance of microorganisms and damaged host tissue. New cell-surface proteins and glycoproteins, which act as Collectin receptors, are currently being identified. Some Collectins, particularly MBL, activate the complement system, which enhances the ability of antibodies to fight pathogens, via three MBL-associated proteases, the MASPs. Additionally, recent research has begun to show wider-ranging activities of Collectins, such as: * Their role in metabolism, and therefore their involvement in lifestyle diseases such as obesity and cardiovascular disease. * Their ability to modulate the adaptive immune response, as well as to recognize and trigger apoptosis of cancer cells, which makes them effective in the annihilation of cancer cells with multiple mutations. * The regulation of their expression by gonadal steroid hormones implicates them with critical roles in both male and female fertility. * Altered levels of Collectins have been associated with various autoimmune diseases. This book brings together current knowledge of the structure, functions and biological activities of Collectins, to describe their integral role in human health.

This volume discusses the latest research and techniques used to study novel cellulases. The chapters in this book explore topics such as the role of cellulases in lignocellulose deconstruction for generation of a sugar platform for biofuel; screening for novel fungal b-glucosidases in a variety of fungal strains; discovery of novel enzymes in bacteria or fungi; protocols for isolating cellulolytic rumen bacteria; analysis of enzyme mixtures produced by ligocellulolytic fungi; and homology modeling. 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. Cutting-edge and thorough, Cellulases: Methods and Protocols is a valuable resource for biochemists, molecular biologists, chemical engineers, and industrial researchers interested in this field.

This book provides a comprehensive review of recent innovations in food science that are being used to tackle the challenges of food safety, nutritional security and sustainability. With a major focus on developing nations, like India, the book is divided into four main sections. The first section provides an overview of the food industry, while the second explores food safety in various segments, with an interesting account of street food safety - an important, yet often neglected aspect for safety parameters. The third section, on nutritional security and sustainability, explores various ways of maximizing nutrition and optimizing waste management in the food industry. The book closes with a section on emerging technologies and innovations, which introduces readers to some of the latest technologies in the food industry, including advances in food processing, packaging, nanotechnology, etc. The topics have been divided into 25 different chapters, which offer a diverse blend of perspectives on innovations in the developing world. Ideally suited for students and researchers in the food sciences, the book is also an interesting read for industry experts in Food Science and Technology.

Immunology is a nodal subject that links many areas of biology. It permeates the biosciences, and also plays crucial roles in diagnosis and therapy in areas of clinical medicine ranging from the control of infectious and autoimmune diseases to tumour therapy. Monoclonal antibodies and small molecule modulators of immunity are major factors in the pharmaceutical industry and now constitute a multi billion dollar business. Students in these diverse areas are frequently daunted by the complexity of immunology and the astonishing array of unusual mechanisms that go to make it up. Starting from Dobzhansky's famous slogan, "Nothing in biology makes sense except in the light of evolution", this book will serve to illuminate how evolutionary forces shaped immunity and thus provide an explanation for how many of its counter intuitive oddities arose. By doing so it will provide a conceptual framework on which students may organise the rapidly growing flood of immunological knowledge.

This book explores efficient syntheses of indole alkaloids based on gold-catalyzed cascade cyclizations, presenting two strategies for total synthesis of these natural products based on gold-catalyzed reactions of conjugated diyne or ynamide. The book first describes the total and formal synthesis of dictyodendrins A-F based on direct construction of the pyrrolo[2,3-c]carbazole core using the gold-catalyzed annulation of azido-diynes and protected pyrrole. This synthetic strategy features late-stage functionalization of the pyrrolo[2,3-c]carbazole scaffold at several positions and allows diverse access to dictyodendrins and their derivatives. Secondly, the book discusses the formal synthesis of vindorosine based on the pyrrolo[2,3-d]carbazole construction using the gold-catalyzed cascade cyclization of ynamide. Importantly, the reaction using a chiral gold complex provides the optically active pyrrolo[2,3-d]carbazole. This strategy facilitates the rapid construction of the pyrrolocarbazole core structure of aspidosperma and related alkaloids, including vindorosine. These methodologies can accelerate the medicinal application of pyrrolocarbazole-type alkaloids and related compounds.

Developmental Signaling in Plants, the latest volume in The Enzymes series, follows up on the themes discussed in volume 35, notably cell-to-cell and organ-to-organ communication. In addition, it looks at the environmental and hormonal effects on development and the epigenetics on development.

Natural toxins form a major component of the molecular tools used increasingly frequently by the ever growing number of laboratories of various kinds. Evidence for this is provided not only by the increasing number of firms including such toxins in their catalogues but also by the large number of demands received by those who discover new toxins. Twenty chapters survey important aspects of toxin origin, their structure and molecular mechanism, and their cellular and pathogenic effects. In addition, the text provides comprehensive and specific methodology for the application of these toxins in the research laboratory. This begins with the description of the method of extraction, biochemical and pharmacological characterization, and assessment of purity, and continues with methods for chemical modification, e.g. labelling, and eventually describes applications in pharmacological studies in vivo and/or in vitro. The length of this book has been kept reasonable by concentrating on animal toxins,...

Lipid Membrane Organization and Molecular Partitions: Determination of Lipid Asymmetry and Exchange in Model Membrane Systems (C. Tilcock et al.). Role of Macromolecules on Membrane Interaction: Pegylation of Membrane Surfaces (D. Fisher). Influence of Polar Polymers on the Aggregation and Fusion of Membranes (K. Arnold et al.). Role of Lipids and Proteins on Membrane Adhesion and Fusion: AnnexinPhospholipid Interactions in Membrane Fusion (P. Meers et al.). Evidence for Multiple Steps in Enveloped Virus Binding (A.M. Haywood). Physical Basis Underlying Membrane Adhesion and Fusion: Red Blood Cell Interaction with a Glass Surface (J.K. Angarska et al.). PhysicoChemical Factors Underlying Membrane Adhesion and Fusion (S. Ohki). Nine additional articles. Index.

IR spectroscopy has become without any doubt a key technique to answer questions raised when studying the interaction of proteins or peptides with solid surfaces for a fundamental point of view as well as for technological applications.

Principle, experimental set ups, parameters and interpretation rules of several advanced IR-based techniques; application to biointerface characterisation through the presentation of recent examples, will be given in this book. It will describe how to characterise amino acids, protein or bacterial strain interactions with metal and oxide surfaces, by using infrared spectroscopy, in vacuum, in the air or in an aqueous medium. Results will highlight the performances and perspectives of the technique.
Description of the principles, expermental setups and parameter interpretation, and the theory for several advanced IR-based techniques for interface characterisationContains examples which demonstrate the capacity, potential and limits of the IR techniquesHelps finding the most adequate mode of analysisContains examplesContains a glossary by techniques and by keywords

This book focuses on the nutrients and nutraceuticals that promote active and healthy ageing - recently defined by the WHO as the process of development and maintenance of functional capacity that allows well-being at an advanced stage of life. There has been a rapid rise in the use of nutritional interventions as well as specific nutraceuticals in the management of multifactorial aspects of clinical health outcomes. Written by leading experts this book comprehensively discusses the various ageing phenotypes and age-related diseases. It also assesses the nutritional status of the elderly and the various epidemiological factors that influence it. It reviews the role of dietary fiber in disease-free and fully functional ageing. Further, the book explores the benefits of polyphenols, which are secondary plant metabolites, in protecting against cancer, cardiovascular diseases, and various neurodegenerative diseases.

This book cover all types of microbe based polymers and their application in diverse sectors with special emphasis on agriculture. It collates latest research, methods, opinion, perspectives, and reviews dissecting the microbial origins of polymers, their production, design, and processing at industrial level, as well as improvements for specific industrial applications. Book also discusses recent advances in biopolymer production and their modification for amplifying the value. In addition, understanding of the microbial physiology and optimal conditions for polymer production are also explained. This compilation of scientific chapters on principles and practices of microbial polymers fosters the knowledge transfer among scientific communities, industries, and microbiologist and serves students, academicians, researchers for a better understanding of the nature of microbial polymers and application procedure for sustainable ecosystem

This book explores how nuclear magnetic resonance (NMR) spectroscopy may be used for spatial structural elucidation of novel compounds from fungal and synthetic sources. Readers will discover the exciting world of NOE (nuclear Overhauser effect), RDC (residual dipolar coupling) and J-coupling constants, both short- and long range. With emphasis on obtaining structural knowledge from these NMR observables, focus is moved from solving a static 3D structure to solving the structural space inhabited by small organic molecules. The book outlines the development and implementation of two Heteronuclear Multiple Bond Correlation-type NMR experiments, and the 3D structural elucidation of multiple known and novel compounds. In addition, a new method of back-calculating RDCs (allowing for more flexible structures to be investigated), and the synthesis and evaluation of novel chiral alignment media for ab initio determination of absolute stereochemistry of small molecules using RDCs are also included. Challenges that 3D structural generation of small compounds face are also covered in this work.

This is the third volume in a series on membrane protein transfer. Membrane protein transport underlies the topological disposition of many proteins within cells and it is this disposition that allows for the co-ordination of the central cellular processes, such as metabolism.

The present volume is the first attempt to bring together, in a comprehensive and comparative manner, the vast knowledge accumulated on the mycoplasma cell membranes. The state-of-the-art coverage includes physical studies of lipid organization and dynamics in mycoplasma membranes, the role of cholesterol in mycoplasma membranes, spiralins, and eight other subjects.

With numerous methods available for the quantification of nitric oxide (NO), this detailed book explores their advantages and disadvantages in order to provide a foundation for further research in plant nitric oxide. After providing a useful practical guide to choosing a technique for measuring NO from plant materials, the book continues with chapters on chemiluminescence, diaminofluorescence (DAF), EPR spectroscopy, a laser-based method, as well as many other topics. 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 methods, and tips on troubleshooting and avoiding known pitfalls. Practical and authoritative, Plant Nitric Oxide: Methods and Protocols serves as a valuable guide to all researchers working and intending to work in the field of plant nitric oxide research.

Why a Second Edition?
The Second Edition provides practical answers to the general question, "How can I obtain useful sequence information from my protein or peptide?" rather than the more specific question asked in the first edition, "How can I obtain the N-terminal sequence?" Important new methods include ways of dealing with blocked N termini, computer analysis of protein sequences, and the recent revolution in mass spectrometry.
Key Features
Highlights of the Second Edition:
* Mass spectrophotometric characterization of proteins and peptides
* N-terminal sequencing of proteins with blocked N termini
* Internal amino acid sequence analysis after protease digestion in-gel and on-blot
* Improved microscale peptide purification methods
* Computer analysis of protein sequences
* New protocols tested and refined through everyday use in authors' laboratories
* Updated reference chapter covering all aspects of protein microsequencing

Protein Structures: The Cooperative Substructure of Protein Molecules; Y. Bai, S.W. Englander. Protein Folding: Approaches to the Determination of More Accurate Crossrelaxation Rates and the Effects of Improved Distance Constraints on Protein Solution Structures; G.C. Hoogstraten, J.L. Markley. Protein Interactions: How Conventional Antigens and Superantigens Interact with the Human MHC Class II Molecule HLADR1; T. Jardetzky. Nucleic Acids and Nucleic Acid-Protein Interactions: Stimulating the Dynamics of the DNA Double Helix in Solution; M. Hirshberg, M. Levitt. Membranes: Applications of Multidimensional Solidstate NMR Spectroscopy to Membrane Proteins; A. Ramamoorthy, et al. Carbohydrate Structure: Conformation, Mobility, and Function of the N-linked Glycan in the Adhesion Domain of Human CD2; G. Wagner, et al. Abstracts from Course: Protein Structures Abstracts: Solution Structure of the ETS-domain from Murine Ets1: A Winged-helix-turn-helix Motif; L.W. Donaldson. Protein Interactions Abstracts: Designing Mutant Hemoglobins; M. Madrid, et al. Nucleic Acids and Nucleic Acid-Protein Interactions Abstracts: A Study on the Dynamics of a DNA Binding Protein; L.M. Horstink, et al. Poster Abstracts. 55 additional articles. Index.

De Novo Enzyme Design, the newest volume in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. This volume includes the design of metal binding maquettes, insertion of non-natural cofactors, Cu metallopeptides, non-covalent interactions in peptide assemblies, peptide binding and bundling, heteronuclear metalloenzymes, florinated peptides, De Novo imaging agents, and protein-protein interaction.