Deamidation and Isoaspartate Formation in Peptides and Proteins

Deamidation and Isoaspartate Formation in Peptides and Proteins PDF Author: Dana W. Aswad
Publisher: CRC Press
ISBN:
Category : Medical
Languages : en
Pages : 280

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Book Description
As the biotechnology industry provides an increasing number of protein-based pharmaceuticals, it is important to understand the sources of heterogeneity and instability of purified proteins. Deamidation and Isoaspartate Formation in Peptides and Proteins focuses exclusively on these topics. It provides a comprehensive presentation of the mechanisms and conditions that lead to deamidation and isoaspartate formation, the effect of protein structure on the susceptibility of proteins to these reactions, the functional consequences of these reactions, and methodology that can be used to assess the amount and location of these damage reactions in proteins. The thirteen chapters, all written by highly respected experts, cover general reviews, case studies, and methodology. Numerous tables throughout the text provide quick access to precise data. For example, Table 1 in Chapter 13-Proteins that Deamidate Nonenzymatically-provides a significant source of protein information due to the endless research and dedication of its author, H.T. Wright. The information in this invaluable book is useful in evaluating alternative purification procedures, analyzing product purity, optimizing formulation and storage conditions, and designing modified proteins with altered stability characteristics.

Deamidation and Isoaspartate Formation in Peptides and Proteins

Deamidation and Isoaspartate Formation in Peptides and Proteins PDF Author: Dana W. Aswad
Publisher: CRC Press
ISBN:
Category : Medical
Languages : en
Pages : 280

Get Book Here

Book Description
As the biotechnology industry provides an increasing number of protein-based pharmaceuticals, it is important to understand the sources of heterogeneity and instability of purified proteins. Deamidation and Isoaspartate Formation in Peptides and Proteins focuses exclusively on these topics. It provides a comprehensive presentation of the mechanisms and conditions that lead to deamidation and isoaspartate formation, the effect of protein structure on the susceptibility of proteins to these reactions, the functional consequences of these reactions, and methodology that can be used to assess the amount and location of these damage reactions in proteins. The thirteen chapters, all written by highly respected experts, cover general reviews, case studies, and methodology. Numerous tables throughout the text provide quick access to precise data. For example, Table 1 in Chapter 13-Proteins that Deamidate Nonenzymatically-provides a significant source of protein information due to the endless research and dedication of its author, H.T. Wright. The information in this invaluable book is useful in evaluating alternative purification procedures, analyzing product purity, optimizing formulation and storage conditions, and designing modified proteins with altered stability characteristics.

Long-lived Proteins in Human Aging and Disease

Long-lived Proteins in Human Aging and Disease PDF Author: Roger J. W. Truscott
Publisher: John Wiley & Sons
ISBN: 3527347283
Category : Science
Languages : en
Pages : 224

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Book Description
This authoritative overview on an emerging topic in the molecular life sciences covers all aspects of the aging of (long-lived) proteins. It describes the molecular mechanisms of aging on the protein level, in particular the most common side chain modifications and includes analytical methods to study protein half-life and the accumulation of modifications. Finally, the impact of protein aging on several age-related disases in humans is dissected, and their role in limiting human lifespan is discussed.

Peptide and Protein Drug Analysis

Peptide and Protein Drug Analysis PDF Author: Ronald Reid
Publisher: CRC Press
ISBN: 9781420001334
Category : Medical
Languages : en
Pages : 926

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Book Description
Furthering efforts to simulate the potency and specificity exhibited by peptides and proteins in healthy cells, this remarkable reference supplies pharmaceutical scientists with a wealth of techniques for tapping the enormous therapeutic potential of these molecules-providing a solid basis of knowledge for new drug design. Provides a broad, comprehensive overview of peptides and proteins as mediators of cell movement, proliferation, differentiation, and communication. Written by more than 50 leading international authorities, Peptides and Protein Drug Analysis discusses strategies for dealing with the complexity of peptides and proteins in conformational flexibility and amino acid sequence variability analyzes drug formulations facilitated by solid-phase peptide synthesis and recombinant DNA technology examines chemical purity analysis by high-pressure chromatographic, capillary electrophoretic, gel electrophoretic, and isoelectric focusing methods highlights drug design elements derived from protein folding, bioinformatics, and computational chemistry demonstrates uses of unnatural mutagenesis and combinatorial chemistry explores mass spectrometry, protein sequence, and carbohydrate analysis illustrates bioassays and other new functional analysis methods surveys spectroscopic techniques such as ultraviolet, fluorescence, Fourier transform infrared, and nuclear magnetic resonance (NMR) addresses ways of distinguishing between levels of therapeutic and endogenous agents in cells reviews structural analysis tools such as ultracentrifugation and light, X-ray, and neutron scattering and more! Featuring over 3400 bibliographic citations and more than 500 tables, equations, and illustrations, Peptide and Protein Drug Analysis is a must-read resource for pharmacists; pharmacologists; analytical, organic, and pharmaceutical chemists; cell and molecular biologists; biochemists; and upper-level undergraduate and graduate students in these disciplines.

Molecular Clocks

Molecular Clocks PDF Author: Noah Edward Robinson
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 454

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Book Description


Peptide and Protein Delivery

Peptide and Protein Delivery PDF Author: Chris Van Der Walle
Publisher: Academic Press
ISBN: 0123849365
Category : Science
Languages : en
Pages : 381

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Book Description
The growing area of peptide and protein therapeutics research is of paramount importance to medical application and advancement. A needed reference for entry level researchers and researchers working in interdisciplinary / collaborative projects, Peptide and Protein Delivery addresses the current and emerging routes for delivery of therapeutics. Covering cerebral delivery, pulmonary delivery, transdermal delivery, intestinal delivery, ocular delivery, parenteral delivery, and nasal delivery, this resource offers an overview of the main routes in therapeutics. Researchers across biochemistry, pharmaceutical, molecular biology, cell biology, immunology, chemistry and biotechnology fields will find this publication invaluable for peptide and protein laboratory research. - Discusses the most recent data, ideas and concepts - Presents case studies and an industrial perspective - Details information from the molecular level to bioprocessing - Thought provoking, for the novice to the specialist - Timely, for today's biopharmaceuticals market

Protein Formulation and Delivery

Protein Formulation and Delivery PDF Author: Eugene J. McNally
Publisher: CRC Press
ISBN: 0849379520
Category : Medical
Languages : en
Pages : 372

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Book Description
This title is intended to assist pharmaceutical scientists in the development of stable protein formulations during the early stages of the product development process, providing a comprehensive review of mechanisms and causes of protein instability in formulation development, coverage of accelerated stability testing methods and relevant analytica

Lasso Peptides

Lasso Peptides PDF Author: Yanyan Li
Publisher: Springer
ISBN: 1493910108
Category : Medical
Languages : en
Pages : 113

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Book Description
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.

Protein Misfolding Diseases

Protein Misfolding Diseases PDF Author: Marina Ramirez-Alvarado
Publisher: John Wiley & Sons
ISBN: 1118031814
Category : Science
Languages : en
Pages : 1311

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Book Description
An increasingly aging population will add to the number of individuals suffering from amyloid. Protein Misfolding Diseases provides a systematic overview of the current and emerging therapies for these types of protein misfolding diseases, including Alzheimer's, Parkinson's, and Mad Cow. The book emphasizes therapeutics in an amyloid disease context to help students, faculty, scientific researchers, and doctors working with protein misfolding diseases bridge the gap between basic science and pharmaceutical applications to protein misfolding disease.

Biopharmaceutical Drug Design and Development

Biopharmaceutical Drug Design and Development PDF Author: Susanna Wu-Pong
Publisher: Springer Science & Business Media
ISBN: 1597455326
Category : Medical
Languages : en
Pages : 374

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Book Description
This book provides a comprehensive examination of the newest biopharmaceutical drugs. Among the drugs discussed are ones in the categories of monoclonal antibodies for in-vivo use, cytokines, growth factors, enzymes, immunomodulators, thrombolytics, and immonotherapies including vaccines. Additionally, the volume examines new and emerging technologies, and contains a review of the Human Genome Project.

Co- and Post-Translational Modifications of Therapeutic Antibodies and Proteins

Co- and Post-Translational Modifications of Therapeutic Antibodies and Proteins PDF Author: T. Shantha Raju
Publisher: John Wiley & Sons
ISBN: 1119053366
Category : Science
Languages : en
Pages : 324

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Book Description
A Comprehensive Guide to Crucial Attributes of Therapeutic Proteins in Biological Pharmaceuticals With this book, Dr. Raju offers a valuable resource for professionals involved in research and development of biopharmaceutical and biosimilar drugs. This is a highly relevant work, as medical practitioners have increasingly turned to biopharmaceutical medicines in their search for safe and reliable treatments for complex diseases, while pharmaceutical researchers seek to expand the availability of biopharmaceuticals and create more affordable biosimilar alternatives. Readers receive a thorough overview of the major co-translational modifications (CTMs) and post-translational modifications (PTMs) of therapeutic proteins relevant to the development of biotherapeutics. The majority of chapters detail individual CTMs and PTMs that may affect the physicochemical, biochemical, biological, pharmacokinetic, immunological, toxicological etc. properties of proteins. In addition, readers are guided on the methodology necessary to analyze and characterize these modifications. Thus, readers gain not only an understanding of CTMs/PTMs, but also the ability to design and assess their own structure-function studies for experimental molecules. Specific features and topics include: Discussion of the research behind and expansion of biopharmaceuticals Twenty chapters detailing relevant CTMs and PTMs of proteins, such as glycosylation, oxidation, phosphorylation, methylation, proteolysis, etc. Each chapter offers an introduction and guide to the mechanisms and biological significance of an individual CTM or PTM, including practical guidance for experiment design and analysis An appendix of biologic pharmaceuticals currently on the market, along with an assessment of their PTMs and overall safety and efficacy This volume will prove a key reference on the shelves of industry and academic researchers involved in the study and development of biochemistry, molecular biology, biopharmaceuticals and proteins in medicine, particularly as biopharmaceuticals and biosimilars become ever more prominent tools in the field of healthcare.