Download or read book Synthetic and Enzymatic Modifications of the Peptide Backbone written by and published by Academic Press. This book was released on 2021-07-27 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting chapters. Each chapter is written by an international board of authors. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Methods of Enzymology series Updated release includes the latest information on the Synthetic and Enzymatic Modifications of the Peptide Backbone
Download or read book Folded Synthetic Peptides for Biomedical Applications written by Alessandro Contini and published by Frontiers Media SA. This book was released on 2019-09-26 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Folded peptides - and peptide motifs within proteins - are abundant in living organisms, where they are essential for the biological activities of the peptides and proteins. During the past decades, much research has been dedicated to understanding the rules that govern peptide folding. Simultaneously, a range of strategies have been established for the conformational stabilization of bioactive peptides, as well as for the de novo design of peptides with defined secondary structures. These methods are either based on the chemical modification of the peptide backbone, such as cyclization and stapled peptides, or on the use of a range of non-proteinogenic amino acids that, in a defined sequential arrangement, induce secondary structures peptides. Such building blocks include D- and other non-proteinogenic amino acids, as well as beta- and gamma-amino acids. This Research Topic comprises a collection of papers by an international group of 77 scientists with a background in synthetic, analytical, computational and medicinal chemistry, as well as in biochemistry and pharmacology. Their research is presented here in a total of 11 papers (8 original research reports and 3 reviews), covering diverse aspects of folded synthetic peptides. These studies include the preparation and characterization of new peptide monomers with interesting folding properties, the synthesis and conformational analysis of non-natural peptides, as well as the use of folded peptidomimetics as molecular switches. Additionally, a range of biomedical applications, such as antimicrobial, anti-inflammatory, antiangiogenic and immune-stimulating activities, are also reported. We hope this eBook will be a source of inspiration and knowledge for scientist in various disciplines related to folded peptides and their many applications, as well as for those who want to learn more about this fascinating field of research.
Download or read book Molecular Biology of The Cell written by Bruce Alberts and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure and Function in Peptide based Supramolecular Designs written by William Seth Horne and published by . This book was released on 2005 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical synthesis of peptides grants the ability to expand beyond amino acid side chains found in nature as well as the connectivity of the peptide backbone. These synthetic modifications can control peptide structure and properties as well as create new methods for the preparation of biologically inspired structures. In the course of the research presented, the structural and functional consequences of synthetic peptide modifications are explored in several systems. In a project examining structural effects of chemical modifications to the peptide backbone, a variety of peptides incorporating 1,4-disubstituted-1,2,3-triazole [epsilon]-amino acids are described. Effects of triazole backbone modifications in designed cyclic structures as well as protein-like linear architectures are examined. In an effort to expand on the known capacity of cyclic D,L-[alpha]-peptides to disrupt biological membranes, sequences capable of inhibiting virus infection of mammalian cells are examined. A compound that inhibits adenovirus infection of host cells at [micro]M doses through disruption of an endosomal pH gradient key in the infection cycle of a number of viral pathogens is described. In a project aimed toward fabrication of conductive materials from self-assembling peptides, cyclic D,L-[alpha]-bearing side chains introduced to modify electronic properties in an assembled nanotubular architecture are discussed. It is demonstrated that the hydrogen bond directed self-assembly of the cyclic D,L-[alpha]-peptide backbone can promote charge transfer between aromatic side chains and that peptide self-association can be controlled through electrochemical charge state of redox-active side chains. In total, the work summarized in this thesis builds on the idea of peptides and proteins as scaffolds for the design of supramolecular assemblies with interesting structural and functional properties.
Download or read book Drug Design written by Gerhard Klebe and published by Springer. This book was released on 2013-07-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unique work on structure-based drug design, covering multiple aspects of drug discovery and development. Fully colored, many images, computer animations of 3D structures (these only in electronic form). Makes the spatial aspects of interacting molecules clear to the reader, covers multiple applications and methods in drug design. Structures by mode of action, no therapeutic areas. Of high relevance for academia and industrial research. Focus on gene technology in drug design, omics-technologies computational methods experimental techniques of structure determination multiple examples on mode of action of current drugs, ADME-tox properties in drug development, QSAR methods, combinatorial chemistry, biologicals, ribosome, targeting protein-protein interfaces.
Download or read book Lasso Peptides written by Yanyan Li and published by Springer. This book was released on 2014-10-21 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lasso peptides form a growing family of fascinating ribosomally-synthesized and post-translationally modified peptides produced by bacteria. They contain 15 to 24 residues and share a unique interlocked topology that involves an N-terminal 7 to 9-residue macrolactam ring where the C-terminal tail is threaded and irreversibly trapped. The ring results from the condensation of the N-terminal amino group with a side-chain carboxylate of a glutamate at position 8 or 9, or an aspartate at position 7, 8 or 9. The trapping of the tail involves bulky amino acids located in the tail below and above the ring and/or disulfide bridges connecting the ring and the tail. Lasso peptides are subdivided into three subtypes depending on the absence (class II) or presence of one (class III) or two (class I) disulfide bridges. The lasso topology results in highly compact structures that give to lasso peptides an extraordinary stability towards both protease degradation and denaturing conditions. Lasso peptides are generally receptor antagonists, enzyme inhibitors and/or antibacterial or antiviral (anti-HIV) agents. The lasso scaffold and the associated biological activities shown by lasso peptides on different key targets make them promising molecules with high therapeutic potential. Their application in drug design has been exemplified by the development of an integrin antagonist based on a lasso peptide scaffold. The biosynthesis machinery of lasso peptides is therefore of high biotechnological interest, especially since such highly compact and stable structures have to date revealed inaccessible by peptide synthesis. Lasso peptides are produced from a linear precursor LasA, which undergoes a maturation process involving several steps, in particular cleavage of the leader peptide and cyclization. The post-translational modifications are ensured by a dedicated enzymatic machinery, which is composed of an ATP-dependent cysteine protease (LasB) and a lactam synthetase (LasC) that form an enzymatic complex called lasso synthetase. Microcin J25, produced by Escherichia coli AY25, is the archetype of lasso peptides and the most extensively studied. To date only around forty lasso peptides have been isolated, but genome mining approaches have revealed that they are widely distributed among Proteobacteria and Actinobacteria, particularly in Streptomyces, making available a rich resource of novel lasso peptides and enzyme machineries towards lasso topologies.
Download or read book Practical Medicinal Chemistry with Macrocycles written by Eric Marsault and published by John Wiley & Sons. This book was released on 2017-09-12 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Including case studies of macrocyclic marketed drugs and macrocycles in drug development, this book helps medicinal chemists deal with the synthetic and conceptual challenges of macrocycles in drug discovery efforts. Provides needed background to build a program in macrocycle drug discovery –design criteria, macrocycle profiles, applications, and limitations Features chapters contributed from leading international figures involved in macrocyclic drug discovery efforts Covers design criteria, typical profile of current macrocycles, applications, and limitations
Download or read book Chemical Ligation written by Luca D. D'Andrea and published by John Wiley & Sons. This book was released on 2017-04-03 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting a wide array of information on chemical ligation – one of the more powerful tools for protein and peptide synthesis – this book helps readers understand key methodologies and applications that protein therapeutic synthesis, drug discovery, and molecular imaging. • Moves from fundamental to applied aspects, so that novice readers can follow the entire book and apply these reactions in the lab • Presents a wide array of information on chemical ligation reactions, otherwise scattered across the literature, into one source • Features comprehensive and multidisciplinary coverage that goes from basics to advanced topics • Helps researchers choose the right chemical ligation technique for their needs
Download or read book Amide Bond Activation written by Michal Szostak and published by MDPI. This book was released on 2019-07-12 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The amide bond represents a privileged motif in chemistry. The recent years have witnessed an explosion of interest in the development of new chemical transformations of amides. These developments cover an impressive range of catalytic N–C bond activation in electrophilic, Lewis acid, radical, and nucleophilic reaction pathways, among other transformations. Equally relevant are structural and theoretical studies that provide the basis for chemoselective manipulation of amidic resonance. This monograph on amide bonds offers a broad survey of recent advances in activation of amides and addresses various approaches in the field.
Download or read book Peptidomimetics in Organic and Medicinal Chemistry written by Antonio Guarna and published by John Wiley & Sons. This book was released on 2014-04-07 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: A peptidomimetic is a small protein-like chain designed to mimic a peptide with adjusted molecular properties such as enhanced stability or biological activity. It is a very powerful approach for the generation of small-molecule-based drugs as enzyme inhibitors or receptor ligands. Peptidomimetics in Organic and Medicinal Chemistry outlines the concepts and synthetic strategies underlying the building of bioactive compounds of a peptidomimetic nature. Topics covered include the chemistry of unnatural amino acids, peptide- and scaffold-based peptidomimetics, amino acid-side chain isosteres, backbone isosteres, dipeptide isosteres, beta-turn peptidomimetics, proline-mimetics as turn inducers, cyclic scaffolds, amino acid surrogates, and scaffolds for combinatorial chemistry of peptidomimetics. Case studies in the hit-to-lead process, such as the development of integrin ligands and thrombin inhibitors, illustrate the successful application of peptidomimetics in drug discovery.
Download or read book Chemical and Biological Synthesis written by Nick J Westwood and published by Royal Society of Chemistry. This book was released on 2018-08-16 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic chemistry plays a central role in many areas of chemical biology; utilising recent case studies, the goal of Chemical and Biological Synthesis is to highlight the full impact that the preparation of novel reagents can have in chemical biology. Covering the synthetic approaches that can be applied across the whole field of chemical biology, this book provides synthetic chemists with the broader context to which their work contributes and the biological questions that can be addressed through it. An ideal guide for postgraduate students and researchers in synthetic organic chemistry and chemical biology, Chemical and Biological Synthesis introduces synthetic techniques and methods to those who wish to incorporate synthesis for the first time in their biology-focused research programmes.
Download or read book Peptide and Peptide Mimicking Tools Methods Synthesis Design Applications written by and published by Elsevier. This book was released on 2024-06-28 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peptide Chemical Tools for Modulating Biology, Volume 698 in the esteemed Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting topics on Peptide tools that target telomere maintenance, Molecular Design of Peptide Therapeutics, Sulfonyl peptide tools for modulating biology, Peptide tools for targeting the Crk/CrkL-p130Cas axis, Quorum sensing peptide tools, In vivo stability and BBB penetration of peptide tools, and Oligo-benzamide-based peptide mimicking tools for modulating biology. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in Methods in Enzymology Updated release includes the latest information on Peptide Chemical Tools for Modulating Biology
Download or read book Radical SAM Enzymes written by and published by Academic Press. This book was released on 2018-08-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radical SAM Enzymes, Volume 606, the latest release in the Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting chapters on the Characterization of the glycyl radical enzyme choline trimethylamine-lyase and its radical S-adenosylmethionine activating enzyme, Diphathimide biosynthesis, Radical SAM glycyl radical activating enzymes, Radical SAM enzyme BioB in the biosynthesis of biotin, Biogenesis of the PQQ cofactor, Role of MoaAC in the biogenesis of the molybdenum cofactor, Biosynthesis of the nitrogenase cofactor, Bioinformatics of the radical SAM superfamily, The involvement of SAM radical enzymes in the biosynthesis of methanogenic coenzymes, methanopterin and coenzyme F420, and more.
Download or read book Peptide Synthesis written by Waleed M. Hussein and published by Humana. This book was released on 2019-12-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a variety of procedures for synthetically producing peptides and their derivatives, ensuring the kind of precision that is of paramount importance for successful synthesis. Numerous techniques relevant to drugs and vaccines are explored, such as conjugation and condensation methodologies. 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 protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Peptide Synthesis: Methods and Protocols serves as an essential guide to the many crucial processes that will allow researchers to efficiently prepare, purify, characterize, and use peptides for chemical, biochemical, and biological studies.
Download or read book Fmoc Solid Phase Peptide Synthesis written by W. Chan and published by OUP Oxford. This book was released on 1999-12-16 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of Atherton and Sheppard's volume, the technique of Fmoc solid-phase peptide synthesis has matured considerably and is now the standard approach for the routine production of peptides. The focus of this new volume is much broader, and covers the essential procedures.
Download or read book Principles of Organic Chemistry written by Robert J. Ouellette and published by Academic Press. This book was released on 2015-02-13 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Class-tested and thoughtfully designed for student engagement, Principles of Organic Chemistry provides the tools and foundations needed by students in a short course or one-semester class on the subject. This book does not dilute the material or rely on rote memorization. Rather, it focuses on the underlying principles in order to make accessible the science that underpins so much of our day-to-day lives, as well as present further study and practice in medical and scientific fields. This book provides context and structure for learning the fundamental principles of organic chemistry, enabling the reader to proceed from simple to complex examples in a systematic and logical way. Utilizing clear and consistently colored figures, Principles of Organic Chemistry begins by exploring the step-by-step processes (or mechanisms) by which reactions occur to create molecular structures. It then describes some of the many ways these reactions make new compounds, examined by functional groups and corresponding common reaction mechanisms. Throughout, this book includes biochemical and pharmaceutical examples with varying degrees of difficulty, with worked answers and without, as well as advanced topics in later chapters for optional coverage. Incorporates valuable and engaging applications of the content to biological and industrial uses Includes a wealth of useful figures and problems to support reader comprehension and study Provides a high quality chapter on stereochemistry as well as advanced topics such as synthetic polymers and spectroscopy for class customization
Download or read book Neuroproteomics written by Oscar Alzate and published by CRC Press. This book was released on 2009-10-26 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this, the post-genomic age, our knowledge of biological systems continues to expand and progress. As the research becomes more focused, so too does the data. Genomic research progresses to proteomics and brings us to a deeper understanding of the behavior and function of protein clusters. And now proteomics gives way to neuroproteomics as we beg
