Mechanisms of Protease Action
Mechanisms of Protease Action

Author: Laszlo Polgar

Publisher: CRC Press

Published: 1989-01-31

Total Pages: 236

ISBN-13: 9780849369018

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A uniform treatment of the four protease groups and a discussion of the differences and similarities in their action is presented in this important new publication. Serine, cysteine, aspartate, and zinc proteases are systematically discussed by nomenclature, evolution, specificity and their regulatory role. The chemistry of the peptide bond, including the catalysis of ester and peptide hydrolyses, is explained. For each protease group the emphasis is placed on the structure and function. Kinetics, enzyme modifications, isotope effects, subzero temperature investigations, nuclear magnetic resonance measurements, X-ray diffraction data, binding of transition-state analogs, zymogen activation, and site-specific mutagenesis are combined to rationalize the action of proteases. Both natural and synthetic inhibitors are considered because of their importance in mechanistic studies and drug design.

State-of-the-Art Research on C1q and the Classical Complement Pathway
State-of-the-Art Research on C1q and the Classical Complement Pathway

Author: Uday Kishore

Publisher: Frontiers Media SA

Published: 2016-11-22

Total Pages: 102

ISBN-13: 2889450589

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C1q is the target recognition protein of the classical complement pathway and a major connecting link between innate and acquired immunity. As a charge pattern recognition molecule of innate immunity, C1q can engage a broad range of ligands derived from self, non-self and altered self via its heterotrimeric globular (gC1q) domain and thus trigger the classical complement pathway. The trimeric gC1q signature domain has been identified in a variety of non-complement proteins that can be grouped together as a C1q family. C1q circulates in serum as part of the C1 complex, in association with a catalytic tetrameric assembly of two homologous yet distinct serine proteases, C1r and C1s. Binding of C1q to appropriate targets leads to sequential activation of C1r and C1s, the latter being able to cleave complement components C4 and C2 thereby triggering the complement cascade. Activation of the classical pathway plays an important role in innate immune protection against pathogens and damaged elements from self. However, its involvement has been shown in various pathologies including ischemia-reperfusion injury and hereditary angioedema. Unexpected roles for the classical pathway have also been discovered recently, linked to both physiological and pathological aspects of development, including brain and cancer cells. These new perspectives should arouse renewed interest in a search for specific inhibitors of the classical pathway. In addition, C1q has recently been shown to have a number of functions that are independent of the activation of the classical pathway. This research topic is aimed at providing a state-of-the-art overview of the classical pathway, including, but not restricted to emerging functions of C1q and of the C1 complex, as well as pathological consequences of C1 activation or of the presence of anti-C1q autoantibodies . Contributions are included in the areas such as structural basis of C1q ligand recognition, C1q family proteins, inhibitors of the classical pathway identified in pathogens and improved derived inhibitors, structural determinants of the substrate specificities of C1r and C1s, elucidation of the architecture of C1, structural and functional homology of C1 with the initiating complexes of the lectin complement pathway, and novel involvement of C1q in processes such as ageing, cancer, synaptic pruning, and pregnancy.

Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases E-Book
Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases E-Book

Author: John E. Bennett

Publisher: Elsevier Health Sciences

Published: 2009-10-19

Total Pages: 4306

ISBN-13: 1437720609

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After thirty years, PPID is still the reference of choice for comprehensive, global guidance on diagnosing and treating the most challenging infectious diseases. Drs. Mandell, Bennett, and Dolin have substantially revised and meticulously updated, this new edition to save you time and to ensure you have the latest clinical and scientific knowledge at your fingertips. With new chapters, expanded and updated coverage, increased worldwide perspectives, and many new contributors, Mandell, Douglas, and Bennett’s Principles and Practice of Infectious Diseases, 7th Edition helps you identify and treat whatever infectious disease you see. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability. Compatible with Kindle®, nook®, and other popular devices. Get the answers to questions you have with more in-depth coverage of epidemiology, etiology, pathology, microbiology, immunology, and treatment of infectious agents than you’ll find in any other infectious disease resource. Find the latest diagnoses and treatments for currently recognized and newly emerging infectious diseases, such as those caused by avian and swine influenza viruses. Put the latest knowledge to work in your practice with new or completely revised chapters on influenza (new pandemic strains); new Middle East respiratory syndrome (MERS) virus; probiotics; antibiotics for resistant bacteria; antifungal drugs; new antivirals for hepatitis B and C; Clostridium difficile treatment; sepsis; advances in HIV prevention and treatment; viral gastroenteritis; Lyme disease; Helicobacter pylori; malaria; infections in immunocompromised hosts; immunization (new vaccines and new recommendations); and microbiome. Benefit from fresh perspectives and global insights from an expanded team of international contributors. Find and grasp the information you need easily and rapidly with newly added chapter summaries. These bulleted templates include diagnosis, therapy, and prevention and are designed as a quick summary of the chapter and to enhance relevancy in search and retrieval on Expert Consult. Stay current on Expert Consult with a thorough and regularly scheduled update program that ensures access to new developments in the field, advances in therapy, and timely information. Access the information you need easily and rapidly with new succinct chapter summaries that include diagnosis, therapy, and prevention. Experience clinical scenarios with vivid clarity through a richly illustrated, full-color format that includes 1500 photographs for enhanced visual guidance.

Mechanisms and Genetics of Neurodevelopmental Cognitive Disorders
Mechanisms and Genetics of Neurodevelopmental Cognitive Disorders

Author: Moyra Smith

Publisher: Academic Press

Published: 2021-04-25

Total Pages: 308

ISBN-13: 0128232528

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Mechanisms and Genetics of Neurodevelopmental Cognitive Disorders connects neurodevelopment with genetics and behavior to better understand the underlying factors leading to cognitive neurodevelopmental disorders. This book focuses on mechanisms of disease and follows the development of specific brain regions, functions, and gene expression to causes and processes in autism, attention deficit disorder, and learning disabilities. Topics include brain mapping, brain plasticity, epigenetics, neuroimmunology, and many other factors that influence the development of these diseases. This book will promote understanding of recent investigations and developments related to brain development from fetal life onward with specific relevance to neurodevelopmental cognitive disorders and conditions. This is an essential reference for anyone who is looking to learn more about different aspects of neurodevelopment and emerging concepts in psychiatric disorders. - Discusses links between brain development, gene expression, and brain function - Covers neural stem cells, proliferation, migration, differentiation, and neurogenesis - Includes brain mapping, brain plasticity, epigenetics, neuroimmunology, and more - Provides insight into causation and brain function in autism, attention deficit disorder, and learning disabilities - Examines impact of society and environmental factors on mental health

Biology of C Reactive Protein in Health and Disease
Biology of C Reactive Protein in Health and Disease

Author: Waliza Ansar

Publisher: Springer

Published: 2016-03-23

Total Pages: 324

ISBN-13: 8132226801

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This book offers a comprehensive study of C-reactive protein (CRP) belonging to the pentraxin family, including a brief history of CRP, its structure, synthesis and evolution. Focusing on the emerging role of CRP and its clinical application in the field of disease biology, it details the pathophysiological role of CRP in a host of diseases such as cardiovascular disease, diabetes, cancers, rheumatoid arthritis and infectious diseases and others. It also discusses the role of innate immunity and acute phase response (APR) and their key mediators in the host body in response to tissue injury, infection, trauma or surgery, immunological disorders or neoplastic growth. CRP’s significance in inflammation is highlighted, and its importance as a clinical marker in cardiovascular disease, its functional significance in Leishmania and Plasmodium infections, its association with the development of insulin resistance in type 2 diabetes mellitus, and its role in cancer are discussed in detail. The book also includes clinical data studies and presents the latest research advances to further readers’ understanding of CRP.

Glycosaminoglycans and Proteoglycans
Glycosaminoglycans and Proteoglycans

Author: 978-3-03842-836-7

Publisher: MDPI

Published: 2018-07-04

Total Pages: 247

ISBN-13: 3038428353

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This book is a printed edition of the Special Issue "Glycosaminoglycans and Proteoglycans" that was published in Pharmaceuticals

Cellular and Molecular Mechanisms of Inflammation
Cellular and Molecular Mechanisms of Inflammation

Author: Charles G. Cochrane

Publisher: Academic Press

Published: 2013-10-22

Total Pages: 266

ISBN-13: 1483191516

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Receptors of Inflammatory Cells: Structure-Function Relationships is the first in a new serial on Cellular and Molecular Mechanisms of Inflammation. The purpose of this serial is to bring together the latest knowledge in various areas of research in this actively developing field around a topical focus. These volumes are not intended to present comprehensive reviews. Rather, each contribution is meant to be a status report from laboratories actively working in an area. This volume presents an analysis of the structure-function relationships of receptors. It is clear that the structure of receptors provides the initial guidance for numerous functions of each cell in the organism. Through an analysis of the submolecular features of the receptors that are responsible for the initiation of activity of diverse biochemical pathways within the cells, a molecular understanding of the all important initial, guiding events of cell functions will emerge. In the broad sense of cells involved in inflammation, this includes mitogenesis, gene transcription, generation of lipid metabolites and oxidants, clearance of molecules from the surrounding medium, and release of granular constituents from cytoplasmic vesicles into the external medium, among others. The contents of this first volume will serve as a foundation for the subject of the second volume, which is signal transduction. Four additional volumes are in preparation, including Endothelial Leukocyte-Adhesion Molecules, Leukocyte Adhesive Mechanisms in Inflammation and Immunity, a second volume on Signal Transduction, and Stimulation of Inflammatory Cells.