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Author: Derek H. R. Barton
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 780
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Book Description
Hardbound. This volume is intended to cover the chemistry of one of the most widely studied and important natural products, DNA. Discussed in detail are physicochemical properties of the molecule itself as well as small-molecule natural products that are known to interact with it. Also included are methods to synthesize and manipulate DNA and modified analogues. Twenty chapters are devoted to this overall topic.The first five relate to the structure of DNA; the first focuses on thermodynamics and kinetics of double helix formation; the next two describe triple- and tetra- helical structures formed by DNA; and the last two focus on methods for probing DNA structure (specifically, NMR methods and chemical probing methods, respectively).Chapters 6-12 focus on the chemistry of natural DNA and modified analogues. The first of these addresses nonenzymatic methods for synthesizing DNA, and the next chapter, on methods for attachment of reporter groups t
Author: Derek H. R. Barton
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 780
Get Book Here
Book Description
Hardbound. This volume is intended to cover the chemistry of one of the most widely studied and important natural products, DNA. Discussed in detail are physicochemical properties of the molecule itself as well as small-molecule natural products that are known to interact with it. Also included are methods to synthesize and manipulate DNA and modified analogues. Twenty chapters are devoted to this overall topic.The first five relate to the structure of DNA; the first focuses on thermodynamics and kinetics of double helix formation; the next two describe triple- and tetra- helical structures formed by DNA; and the last two focus on methods for probing DNA structure (specifically, NMR methods and chemical probing methods, respectively).Chapters 6-12 focus on the chemistry of natural DNA and modified analogues. The first of these addresses nonenzymatic methods for synthesizing DNA, and the next chapter, on methods for attachment of reporter groups t
Author: Eric T. Kool
Publisher: Pergamon
ISBN: 9780080431659
Category : DNA.
Languages : en
Pages : 0
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Book Description
This volume is intended to cover the chemistry of one of the most widely studied and important natural products, DNA. Discussed in detail are physicochemical properties of the molecule itself as well as small-molecule natural products that are known to interact with it. Also included are methods to synthesize and manipulate DNA and modified analogues. Twenty chapters are devoted to this overall topic. thermodynamics and kinetics of double helix formation; the next two describe triple- and tetra- helical structures formed by DNA; and the last two focus on methods for probing DNA structure (specifically, NMR methods and chemical probing methods, respectively). analogues. The first of these addresses nonenzymatic methods for synthesizing DNA, and the next chapter, methods for attachment of reporter groups to it. Modifications of DNA structure are discussed in chapters eight to eleven; the first of these addresses nucleoside analogues useful as biochemical probes, while others discuss alterations to the DNA backbone, bases, and topology, respectively. The extensive chemistry of DNA damage is reviewed in the last chapter (chapter 12). Included in this group are a large number of natural and non-natural products, which fall into the classes of intercalators (chapter 13), minor groove binders (chapter 14), DNA-binding peptides (chapter 15), and DNA-damaging natural products (chapter 16). The last two chapters focus more specifically on two broad classes of medicinally important agents which interact with DNA; specifically, the enediyne natural products (chapter 17), and topoisomerase inhibitors (chapter 18). are being used in many chemically-oriented laboratories. The first (chapter 19) covers selection of novel ligands and catalysts from sequence-randomized libraries of DNA. The second (chapter 20) covers other useful molecular biology methods such as cloning and the polymerase chain reaction.
Author: Derek Barton
Publisher: Newnes
ISBN: 0080912834
Category : Science
Languages : en
Pages : 11380
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Book Description
Comprehensive Natural Products Chemistry
Author: Hung-wen Liu
Publisher:
ISBN: 9780080453835
Category : Electronic books
Languages : en
Pages :
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Book Description
Author: Takeshi Ogura
Publisher: CRC Press
ISBN: 9789057022098
Category : Science
Languages : en
Pages : 688
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Book Description
Preface: Natural products chemistry has a long history, and could be regarded as having its roots in the use of many kinds of herbal mixtures as crude drugs in traditional medicine. Systems of traditional medicine have been practiced in China and Japan for thousands of years, and virtually all regions of the world have used natural materials to treat human disease. It was clear that many plants, herbs, etc. contain components with powerful biological activities. The dawn of modern natural products chemistry began with the isolation of the active component, morphine, from opium. Subsequently, various alkaloids were isolated from medicinal plants and employed clinically. The discovery and the development of penicillin as a microbial metabolite opened up the era of antibiotics, which have saved countless lives in the past half century or so. The isolation and synthesis of steroid hormones resulted in the development of new concepts in molecular stereochemistry and organic synthetic techniques, as did the discovery of bioactive lipids such as prostaglandins and leukatrienes, bioactive peptides such as enkephalins and endetherines, and oligosaccharides, including glycoproteins. Further, the discovery of plant hormones has led to great strides in plant biotechnology, including plant tissue cultures, and derivatives of insect hormones and pheromones are now used as pesticides. Thus, applications of natural products chemistry have become all-pervasive in modern society. Apart from the extensive practical applications of natural products and their derivatives, natural products chemistry has played a central role in the development of modern organic chemistry as a result of its focus on structural and synthetic studies of often highly complex and inaccessible molecules. Biosynthetic studies have also attracted much attention, aiming to answer the questions of why and how such a large number and variety of compounds are synthesised by organisms. Researchers in the field of biosynthesis first focused on elucidation of the pathways of secondary metabolism, and then on the mechanisms, of the enzymes catalyzing the biosynthetic reactions. This was an extremely difficult task, because rather large amounts of enzymes are required for the investigation of reaction mechanisms and the enzyme proteins are often unstable and not easy to purify. However, in recent years the development of molecular biology has made gene and protein engineering rather routine. Thus, studies of mechanistic enzymology can now be conducted with cloned and overexpressed enzyme proteins. It has been shown that the enzymes responsible for the biosynthesis of antibiotics in Streptomyces spp. are encoded in gene clusters. Further, cloning and functional analysis of the genes associated with flavonoid biosynthesis should soon cast light on the interesting question of why flavonoids are ubiquitously present in plant leaves. Life is maintained not only by large molecules such as proteins and nucleic acids, but also by many small molecules which have essential and diverse roles in the physiology of living organisms. Such compounds often have highly specific interactions with target receptors, but the mechanisms involved largely remain to be explored. Current methodology means that this task can be addressed, and this in turn should lead to a host of new applications for natural products and their derivatives. The key may be an interdisciplinary approach taking account of both biological function and molecular behaviour based on precise structure recognition. As we increasingly understand the mechanisms of molecular recognition that operate in nature, many possibilities should open up for artificial control or modification of biological functions, as well as new challenges for synthetic organic chemists. Our intention in this book is to focus on such dynamic aspects of natural products chemistry. By dealing in detail with representative topics to which the most modern techniques of research have been applied, we hope to emphasize the value of combining traditional approaches to natural products chemists with current biochemical and molecular-biological ideas. Each chapter provides sufficient background information and experimental detail to make the subject accessible to non-specialists. It is our hope that these examples of recent progress in key areas of natural products chemistry will stimulate work in related topics by illustrating the power of a modern interdisciplinary approach to the subject.
Author: Natanya Civjan
Publisher: John Wiley & Sons
ISBN: 1118101170
Category : Science
Languages : en
Pages : 437
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Book Description
Based on the award winning Wiley Encyclopedia of Chemical Biology, this book provides a general overview of the unique features of the small molecules referred to as "natural products", explores how this traditionally organic chemistry-based field was transformed by insights from genetics and biochemistry, and highlights some promising future directions. The book begins by introducing natural products from different origins, moves on to presenting and discussing biosynthesis of various classes of natural products, and then looks at natural products as models and the possibilities of using them in medicine.
Author: David J. Newman
Publisher: CRC Press
ISBN: 1351643282
Category : Medical
Languages : en
Pages : 650
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Book Description
Chemical Biology of Natural Products This unique, long-awaited volume is designed to address contemporary aspects of natural product chemistry and its influence on biological systems, not solely on human interactions. The subjects covered include discovery, isolation and characterization, biosynthesis, biosynthetic engineering, pharmaceutical, and other applications of these compounds. Each chapter begins with a brief and simple introduction to the subject matter, and then proceeds to guide the reader towards the more contemporary, cutting-edge research in the field, with the contributing authors presenting current examples from their own work in order to exemplify key themes. Topics covered in the text include genome mining, heterologous expression, natural product synthesis, biosynthesis, glycosylation, chemical ecology, and therapeutic applications of natural products, both current and potential.
Author: Derek H. R. Barton
Publisher:
ISBN:
Category : Biological Products
Languages : en
Pages : 400
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Book Description
Author: Derek H. R. Barton
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 542
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Book Description
Hardbound. This volume describes the dramatic advances in studies of the structure and function of enzymes which have led to an understanding of the rich chemistry used by nature to construct molecules and how the enzymes of natural products biosynthesis catalyze these reactions. Natural products are synthesized from simple precursors through a series of enzyme mediated reactions that are exquisitely selective and efficient. Questions about the mechanisms of these reactions and what features of enzyme catalytic sites are important for stabilizing transition states and reactive intermediates have been addressed by combining studies in mechanistic organic chemistry, structural biology, and molecular genetics. Except in rare instances, the enzymes of natural products biosynthesis are not found in abundance, and as a consequence, they are not readily available for study from natural sources. This situation has changed through the dramatic advances in gen
Author: Anne Osbourn
Publisher: Wiley-Blackwell
ISBN: 9781118298060
Category : Science
Languages : en
Pages : 552
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Book Description
Natural Products: Discourse, Diversity and Design provides an informative and accessible overview of discoveries in the area of natural products in the genomic era, bringing together advances across the kingdoms. As genomics data makes it increasingly clear that the genomes of microbes and plants contain far more genes for natural product synthesis than had been predicted from the numbers of previously identified metabolites, the potential of these organisms to synthesize diverse natural products is likely to be far greater than previously envisaged. Natural Products addresses not only the philosophical questions of the natural role of these metabolites, but also the evolution of single and multiple pathways, and how these pathways and products may be harnessed to aid discovery of new bioactives and modes of action. Edited by recognized leaders in the fields of plant and microbial biology, bioorganic chemistry and natural products chemistry, and with contributions from researchers at top labs around the world, Natural Products is unprecedented in its combination of disciplines and the breadth of its coverage. Natural Produces: Discourse, Diversity and Design will appeal to advanced students and experienced researchers, from academia to industry, in diverse areas including ecology, industrial biotechnology, drug discovery, medicinal chemistry, agronomy, crop improvement, and natural product chemistry.