Download or read book Biocatalytic Productions of Amino Acids and Derivatives written by David Rozzell and published by . This book was released on 1992-01-01 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biocatalytic Production of Amino Acids and Derivatives written by J. David Rozzell and published by . This book was released on 1992-01-01 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biocatalytic Preparation of Amino Acids written by Vivek Kothari and published by Daya Books. This book was released on 2007 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amino Acids Are The Molecular Units That Make Up Proteins. All Proteins Are Various Compositions Of Twenty Specific Naturally Occurring Amino Acids. Amino Acids Are Found In All Foods Except Oil. There Are About Eighty Amino Acids Found In Nature, But Only Twenty To Twenty-Nine Are Required For Human Growth. Amino Acids Play A Pivotal Role In Living Systems, And Therefore Synthetic Amino Acids Have Been Of Significant Interest To Researchers Working Towards The Understanding And Modification Of Physiological Processes. Currently, The Amino Acids Used In Amino Acid Products Are Mainly Manufactured By Biocatalytic Methods. The Book Presents Detailed Discussion Of The Preparation Of Amino Acids By Biocatalysis. It Provides Examples Of Recently Developed Biocatalytic Methods For The Production Of Amino Acids And Its Derivatives. It Offers Upper Level Students And Professionals An Essential Resource For Pharmaceutical Development, Medicinal Chemistry And Biochemistry. Contents Chapter 1: Basics Of Biocatalysis; Chapter 2: Production Of Amino Acids; Chapter 3: Asymmetric Synthesis Of Amino Acids; Chapter 4: Amino Acids And Derivatives; Chapter 5: Strategies For Efficient Biocatalysis; Chapter 6: Synthesis Of Cage Amino Acids; Chapter 7: Types Of B-Amino Acids; Chapter 8: Extremophiles And Extremozymes; Chapter 9: Immobilised Enzymes; Chapter 10: Enzymatic Peptide Synthesis; Chapter 11: Synthesis Of Enantiomerically Pure (S)-Amino Acids And (R)-Amines; Chapter 12: Cloning And Sequence Analysis; Chapter 13: Bioseparation And Biocatalytic Applications.
Download or read book Engineering Aminotransferases for the Biocatalytic Production of Aromatic D Amino Acids written by Curtis James William Walton and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Optically pure aromatic D-amino acids, such as D-phenylalanine (D-Phe) and its derivatives, are high-value building blocks for the pharmaceutical industry. These compounds can be prepared using biocatalytic methods relying on various enzymes, including aminotransferases (ATs). ATs, also called transaminases (EC 2.6.1.X), are a subclass of pyridoxal 5'-phosphate-dependent enzymes that catalyze the transfer of the amino group from a donor substrate to a ketone acceptor. Synthesis of optically-pure amino acids using whole-cell biocatalytic cascades based on ATs possess several advantages compared to traditional chemical methods, including excellent enantioselectivity and increased process and step efficiency, which is achieved through the catalysis of multiple steps in one-pot reactions without requirement for intermediate work-ups, cofactor recycling, or toxic metals. However, enzyme biocatalysts typically need to be engineered to alter their substrate specificity or to increase their catalytic efficiency, which has limited their industrial application. Therefore, to facilitate the engineering process of ATs broadly and to produce aromatic D-amino acids, we developed a high-throughput assay for the testing of a broad range of ATs against libraries of potential substrates, and developed a biocatalytic cascade to produce optically pure aromatic D-amino acids.
Download or read book Catalytic and Biocatalytic Methods for the Efficient Synthesis of Biologically Relevant Non Proteinogenic Amino Acids written by Anke Lemke and published by Cuvillier. This book was released on 2014-04-29 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-proteinogenic amino acids are often important constituents of biologically potent natural products. The synthesis of these amino acids is often time-consuming, non-trivial and not sustainable. Thus, the central topic of this work was the formation of unusual amino acid structures by biocatalytic and catalytic methods. For the elucidation of the biosynthetic pathway of Streptomyces-produced muraymycins and related natural products, a 'biosynthetic tool kit' was compiled and prepared. This does not only comprehend the completed synthesis of deuterium-labeled compounds, such as (3R)- and (3S)-3-hydroxy-[5-2H]-l-arginine and other potential intermediates with a nucleosidic structure, but it also includes the development of fermentation methodology including the possibility to detect the muraymycin derivatives by LC MS. Furthermore, different synthetic routes with catalytic key steps for the preparation of the non-proteinogenic amino acid enduracididine were investigated.
Download or read book Science of Synthesis Biocatalysis in Organic Synthesis Vol 3 written by Kurt Faber and published by Thieme. This book was released on 2015-03-11 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three Science of Synthesis volumes on "Biocatalysis in Organic Synthesis" present a broad contemporary overview on the state-of-the-art in enzymatic methods for asymmetric synthesis suitable for academics and industrial researchers working in the field of organic synthesis. The goal is to start a new wave of enthusiasm for biocatalysis in the broader community and to give an overview of the field. "Biocatalysis in Organic Synthesis" offers critical reviews of organic transformations by experts, including experimental procedures. The organization is based on the type of reaction performed under biocatalysis. Volume 3 begins with oxidation. A chapter on enzyme-catalyzed dihydroxylation is followed by reviews of alkane oxidation. Oxidations of alcohols, carbonyl compounds, and heteroatoms are covered, as are halogenations. The use of biocatalysts in total synthesis, cascade reactions, and large-scale industrial applications is considered. Finally, emerging trends are discussed.
Download or read book Development of Bioprocesses for the Production of Biocatalysts Used in the Synthesis of Amino Acids and Amines written by Brian Hugh Wilson Griffin and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research in to enzyme catalysis has enormously enriched the success of biological organic synthesis; particularly in the last decade, remarkable progress in biological catalysis has taken place leading to the application of enzymes to a wider extent in industrial processes. The benefits of establishing enzymes as industrial catalysts are founded on the need to develop a 'clean' and 'pure' technology which carry out isomer and region selective reactions; generate or transform pure isomers compared with racemic mixtures and produce pure compounds in comparison with mixtures of by-products often arising from conventional chemical synthesis. With the onset of molecular biology and genetics, the manufacturing of high value proteins in recombinant host cells has become commonplace; nevertheless, there needs to be a better understanding of the optimum conditions for the production of every recombinant protein. In this study, the over expression of an industrially important amine oxidase - D-Amino Acid Oxidase (DAAO) - was attempted using two different expression systems: Escherichia coli and Pichia pastoris in order to establish the optimum conditions for industrial production. Amine oxidases exhibit stereoselectivity; ergo they can theoretically be used for the deracemisation of nonopticallypure mixtures of amines leading to optically pure amines of high value.Furthermore, DAAO is involved in the production of 7-aminocephalosporanic acid (7-ACA) from cephalosporin c (CPC), which can be used in the synthesis of novel cephalosporin antibiotic derivatives. In order to accelerate development of these new antibiotics DAAO must be readily available. Overexpression of DAAO in E. coli was studied under varying experimental conditions in order to ascertain the best conditions for enzymatic activity whilst simultaneously investigating the variations between both defined and complex media to understand suitability for scale-up.Although E. coli is still regarded as the 'go to' organisms for initial laboratory scale up the methylotrophic yeast P. pastoris is considered an industrial workhorse for the production of recombinant proteins and thus the expression of DAAO was also investigated to ascertain how enzyme activities are affected by this expression system. Furthermore, the supplementation of media with different nutrient sources of varying complexity was investigated, as was the implementation of co-feeding inorder to improve carbon flux during recombinant protein production. Finally, the oxygen availability was investigated in order to gain important understandings on its effects on microbial physiology and DAAO activity.
Download or read book Amino Acid Derivatives written by G. C. Barrett and published by Oxford University Press on Demand. This book was released on 1999 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many successful syntheses of homochiral organic compounds use an amino acid derivative as a starting point. Such syntheses are not confined to peptides as targets; peptide synthesis strategies have been narrowed down to a few well-defined protocols (and these are not covered in this book).Outside the peptide field, many non-routine syntheses have been established that give the intended products in which the structural features of the starting amino acid are barely recognisable. This book is a laboratory guide that covers the early stages of syntheses under these headings, whichinvariably call for modifications to the functional groups of readily-available L-amino acids. It will therefore give invaluable guidance to the preparation of amino acid derivatives to be used not only in these broad area of synthesis but also in amino acid analysis. Synthetic work with aminoacids carried out by new users and by experienced chemists and other scientists, will be supported by the detailed practical protocols and background information provided in this book.
Download or read book Applied Biocatalysis written by Adrie J.J. Straathof and published by CRC Press. This book was released on 2000-01-18 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describing the essential steps in the development of biocatalytic processes from concept to completion, this carefully integrated text combines the fundamentals of biocatalysis with technological experience and in-depth commercial case studies. The book starts with an introductory look at the history and present scope of biocatalysis and proceeds to detailed overviews of particular areas of interest. Written by industrial and academic experts, Applied Biocatalysis will be an important addition to the bookshelf for anyone teaching the subject or working in the chemical, food manufacturing or pharmaceutical industries, who is seeking to exploit the potential of biocatalysts.
Download or read book Modification of Polymers written by Charles E. Carraher and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sheer volume of topics which could have been included under our general title prompted us to make some rather arbitrary decisions about content. Modification by irradiation is not included because the activity in this area is being treated elsewhere. We have chosen to emphasize chemical routes to modification and have striven to pre sent as balanced a representation of current activity as time and page count permit. Industrial applications, both real and potential, are included. Where appropriate, we have encouraged the contributors to include review material to help provide the reader with adequate context. The initial chapter is a review from a historical perspective of polymer modification and contains an extensive bibliography. The remainder of the book is divided into four general areas: Reactions and Preparation of Copolymers Reactions and Preparation of Block and Graft Copolymers Modification Through Condensation Reactions Applications The chemical modification of homopolymers such as polyvinylchlo ride, polyethylene, poly(chloroalkylene sulfides), polysulfones, poly chloromethylstyrene, polyisobutylene, polysodium acrylate, polyvinyl alcohol, polyvinyl chloroformate, sulfonated polystyrene; block and graft copolymers such as poly(styrene-block-ethylene-co-butylene block-styrene), poly(I,4-polybutadiene-block ethylene oxide), star chlorine-telechelic polyisobutylene, poly(isobutylene-co-2,3-dimethyl- 1,3-butadiene), poly(styrene-co-N-butylmethacrylate); cellulose, dex tran and inulin, is described.
Download or read book Discovery and Properties of Enzymes for Biocatalytic Production of beta amino Acids written by Rijksuniversiteit Groningen and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry and Biochemistry of the Amino Acids written by G. C. Barrett and published by Springer. This book was released on 1985-01-17 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amino acids are featured in course syllabuses and in project and research work over a wide spectrum of subject areas in chemistry and biology. Chemists and biochemists using amino acids have many common needs when they turn to the literature for comprehensive information. Among these common interests, analytical studies, in particular, have undergone rapid development in recent years. All other chemical and biochemical aspects of amino acids - synthesis, properties and reactions, preparation of derivatives for use in peptide synthesis, racemization and other fundamental mechanistic knowledge - have been the subject of vigorous progress. This book offers a thorough treatment of all these developing areas, and is structured in the belief that biochemists, physiologists and others will profit from access to information on topics such as the physical chemistry of amino acid solutions, as well as from thorough coverage of amino acid metabolism, biosynthesis and enzyme inhibition; and that chemists will find relevant material in biological areas as well as in the analysis, synthesis and reactions of amino acids.
Download or read book Toward the Development of a Biocatalytic Process for the Production of Beta aryl beta amino Acids written by Nishanka Dilini Ratnayake and published by . This book was released on 2015 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amino Acids and Derivatives written by B. J. Miflin and published by . This book was released on 1980 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives written by Jesús Fernández Lucas and published by John Wiley & Sons. This book was released on 2018-10-25 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of innovative tools for creative nucleic acid chemists that open the door to novel probes and therapeutic agents Nucleic acids continue to gain importance as novel diagnostic and therapeutic agents. With contributions from noted scientists and scholars, Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives is a practical reference that includes a wide range of approaches for the synthesis of designer nucleic acids and their derivatives. The book covers enzymatic (including chemo-enzymatic) methods, with a focus on the synthesis and incorporation of modified nucleosides. The authors also offer a review of innovative approaches for the non-enzymatic chemical synthesis of nucleic acids and their analogs and derivatives, highlighting especially challenging species. The book offers a concise review of the methods that prepare novel and heavily modified polynucleotides in sufficient amount and purity for most clinical and research applications. This important book: -Presents a timely and topical guide to the synthesis of designer nucleic acids and their derivatives -Addresses the growing market for nucleotide-derived pharmaceuticals used as anti-infectives and chemotherapeutic agents, as well as fungicides and other agrochemicals. -Covers novel methods and the most recent trends in the field -Contains contributions from an international panel of noted scientistics Written for biochemists, medicinal chemists, natural products chemists, organic chemists, and biotechnologists, Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives is a practice-oriented guide that reviews innovative methods for the enzymatic as well as non-enzymatic synthesis of nucleic acid species.
Download or read book Pharmaceutical Biocatalysis written by Peter Grunwald and published by CRC Press. This book was released on 2019-11-07 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an insight into the future strategies for commercial biocatalysis with a focus on sustainable technologies, together with chemoenzymatic and biotechnological approaches to synthesize various types of approved and new active pharmaceutical ingredients (APIs) via proven and latest synthetic routes using single-step biocatalytic or enzyme cascade reactions. Many of these drugs act as enzyme inhibitors, as discussed in a chapter with a variety of examples. The targeted enzymes are involved in diseases such as different cancers, metastatic and infectious diseases, osteoporosis, and cardiovascular disorders. The biocatalysts employed for API synthesis include hydrolytic enzymes, alcohol dehydrogenases, laccases, imine reductases, reductive aminases, peroxygenases, cytochrome P450 enzymes, polyketide synthases, transaminases, and halogenases. Many of them have been improved with respect to their properties by engineering methods. The book discusses the syntheses of drugs, including alkaloids and antibiotics, non-ribosomal peptides, antimalarial and antidiabetic drugs, prenylated xanthones, antioxidants, and many important (chiral) intermediates required for the synthesis of pharmaceuticals.
Download or read book The Synthesis and Metabolism of Nitrogen Substituted Derivatives of Amino Acids written by Philip Handler and published by . This book was released on 1937 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
