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Author: Robert B. McComb Publisher: Springer Science & Business Media ISBN: 1461329701 Category : Science Languages : en Pages : 998
Book Description
There can be no doubt that alkaline phosphatase is one of the most extensively in vestigated of all enzymes. This has resulted from the ubiquity of its distribution, and from the ease and sensitivity with which its activity can be measured. Unfortunately, these wide-ranging but often superficial experimental studies have been followed up by intensive and systematic investigations in only a few limited areas of the biochemistry and chemical pathology of alkaline phosphatase. The result has been the accumulation of a scientific literature of intimidating proportions, and the inevitable rediscovery of already known facts about the enzyme. Scientists are taught early in their careers that, in the words of Sir John Herschel, "Hasty generalization is the bane of science. " Nevertheless, moments arrive in all spheres of scientific activity when generalization becomes essential, to codify and to select from the mass of data already accumulated, and to provide starting points for new developments and new lines of investigation. This is especially true in a field such as alkaline phosphatase research, in which very real dangers exist that the seeds of fundamental understanding will be lost amidst an unexamined harvest of empirical observations. The history of the study of alkaline phosphatase provides several instances when valuable generalizations have emerged. Occasionally, the conclusions drawn on the basis of available evidence were wrong; more frequently, they have stood the test of further experimentation, and always, they have provided new insights into the nature and proper ties of this enzyme.
Author: Robert B. McComb Publisher: Springer Science & Business Media ISBN: 1461329701 Category : Science Languages : en Pages : 998
Book Description
There can be no doubt that alkaline phosphatase is one of the most extensively in vestigated of all enzymes. This has resulted from the ubiquity of its distribution, and from the ease and sensitivity with which its activity can be measured. Unfortunately, these wide-ranging but often superficial experimental studies have been followed up by intensive and systematic investigations in only a few limited areas of the biochemistry and chemical pathology of alkaline phosphatase. The result has been the accumulation of a scientific literature of intimidating proportions, and the inevitable rediscovery of already known facts about the enzyme. Scientists are taught early in their careers that, in the words of Sir John Herschel, "Hasty generalization is the bane of science. " Nevertheless, moments arrive in all spheres of scientific activity when generalization becomes essential, to codify and to select from the mass of data already accumulated, and to provide starting points for new developments and new lines of investigation. This is especially true in a field such as alkaline phosphatase research, in which very real dangers exist that the seeds of fundamental understanding will be lost amidst an unexamined harvest of empirical observations. The history of the study of alkaline phosphatase provides several instances when valuable generalizations have emerged. Occasionally, the conclusions drawn on the basis of available evidence were wrong; more frequently, they have stood the test of further experimentation, and always, they have provided new insights into the nature and proper ties of this enzyme.
Author: José Luis Millan Publisher: John Wiley & Sons ISBN: 3527607471 Category : Science Languages : en Pages : 337
Book Description
A review and discussion of new knowledge on the structure and function of mammalian alkaline phosphatases (APs) gained over the last 25 years. It covers: * The structure, regulation and expression of the AP genes * The three-dimensional structure of APs and mutagenesis work that further defined the structural/functional domains of the isozymes * The phenotypic abnormalities of the different AP knockout mice * Our current understanding of the in vivo role of the AP isozymes. The book also describes the possible use of APs as therapeutic agents and therapeutic targets and the many uses of these enzymes in clinical medicine and in biotechnology.
Author: Rafael Pulido Publisher: ISBN: 9783039216895 Category : Biology (General) Languages : en Pages : 240
Book Description
Dual specificity phosphatases (DUSPs) constitute a heterogeneous group of protein tyrosine phosphatases with the ability to dephosphorylate Ser/Thr and Tyr residues from proteins, as well as from other non-proteinaceous substrates including signaling lipids. DUSPs include, among others, MAP kinase (MAPK) phosphatases (MKPs) and small-size atypical DUSPs. MKPs are enzymes specialized in regulating the activity and subcellular location of MAPKs, whereas the function of small-size atypical DUSPs seems to be more diverse. DUSPs have emerged as key players in the regulation of cell growth, differentiation, stress response, and apoptosis. DUSPs regulate essential physiological processes, including immunity, neurobiology and metabolic homeostasis, and have been implicated in tumorigenesis, pathological inflammation and metabolic disorders. Accordingly, alterations in the expression or function of MKPs and small-size atypical DUSPs have consequences essential to human disease, making these enzymes potential biological markers and therapeutic targets. This Special Issue covers recent advances in the molecular mechanisms and biological functions of MKPs and small-size atypical DUSPs, and their relevance in human disease.
Author: Susanne Klumpp Publisher: Gulf Professional Publishing ISBN: 9780121822699 Category : Medical Languages : en Pages : 516
Book Description
Protein phosphatases are a group of enzymes responsible for the dephosphorylation of various proteins and enzymes in a cell. This role is an extremely important one since protein phosphorylation and dephosphorylation is required for the regulation of a large number of cellular activities. Classification of Protein Phosphatases Analysis/Technology: Cell and Molecular Imaging Technology, Assay of Protein Phosphatases, MS and MNR, Genomics/Proteomics, cDNA Microarray Analysis Cellular Regulation: Substrates, Inhibitors, Regulation, Protein-Protein Interaction Biological Function: Antisense Studies, Transgenic and Knockout Animal Models in Vivo, Therapeutic Approaches
Author: Joaquín Arino Publisher: Springer Science & Business Media ISBN: 9783540205609 Category : Science Languages : en Pages : 402
Book Description
This book provides an up-to-date and comprehensive overview of protein phosphatase research, a rapidly evolving field with increasing importance in our understanding of the molecular basis of cell biology and of pathological processes. The book covers dephosphorylation processes involving serine/threonine, as well as tyrosine and histidine residues, and aims to be a useful resource for both the advanced reader as well as the newcomer to the field. It is also valuable for those working in the pharmaceutical and Biotech industries.
Author: Girdhar K. Pandey Publisher: Springer Nature ISBN: 3030487334 Category : Science Languages : en Pages : 393
Book Description
The regulation of the phosphorylation/dephosphorylation process, resulting in “cellular switches” that monitor normal plant physiology, growth and development, has immense potential in crop systems. With much of the information in the nascent stages, coming largely from Arabidopsis and rice particularly, the use of cell biology, genetic screens, biochemical approaches aided by an omics approach should help unravel the detail functional information available about signaling pathways in plants. The regulation could be exploited to develop crop varieties better equipped to handle changing environments and enhance agricultural productivity. In the post-genomic era, one of the major challenges is investigation and understanding of multiple genes and gene families regulating a particular physiological and developmental aspect of plant life cycle. One of the important physiological processes is regulation of stress response, which leads to adaptation or adjustment in response to adverse stimuli. With the holistic understanding of the signaling pathways involving phosphatases, one gene family or multiple genes or gene families, plant biologist can lay a foundation for designing and generating future crops, which can withstand the higher degree of environmental stresses. Especially abiotic stresses, which are the major cause of crop loss throughout the world without losing crop yield and productivity. This book incorporates the contributions from leading plant biologists in the field of stress-mediated dephosphorylation by phosphatases as an important task to elucidate the aspects of stress signaling by functional genomic approaches.
Author: Lalima G. Ahuja Publisher: Walter de Gruyter GmbH & Co KG ISBN: 3110421771 Category : Science Languages : en Pages : 296
Book Description
Protein tyrosine phosphatases remove phosphates from the phosphotyrosine residues of target proteins and reverse the action of various protein tyrosine kinases. This essential interplay between the opposing actions of protein tyrosine phosphatases and protein tyrosine kinases forms the basis of signaling networks that underlie the cellular workings of human physiology. Initially passed-off as housekeeping genes; these proteins were only acknowledged to maintain a steady background of phosphotyrosine levels in the cell. However, recent progress in studying their role in embryonic development and human disease has established their importance as regulators of signal regulation. Convincing evidence shows the role of mutations in these proteins to cause and/or intensify the severity of various diseases including metabolic and neurological disorders and also cancer. Protein tyrosine phosphatases have slowly, yet convincingly become crucial targets for therapeutic intervention of various human pathophysiologies. This book describes these signaling enzymes using the molecular details of their structure and mechanistic function. Various subtypes of cysteine-based Class I, II, III and the Haloacid dehalogenase related Class IV protein tyrosine phosphatases have been illustrated and explained. The superfamily of proteins is also described vis-a-vis its complimentary protein phosphoserine/phosphoserine phosphatases. Membrane bound receptor forms and the cytosolic non-receptor protein tyrosine phosphatases have been described for their biological function. This book serves as a reference for any reader looking to understand the sequence features, structural elements, molecular mechanism and cellular function of this superfamily of signaling enzymes.
Author: Benjamin G. Neel Publisher: Springer ISBN: 1493936492 Category : Medical Languages : en Pages : 362
Book Description
This book aims to bridge the gap in understanding how protein-tyrosine phosphatases (PTPs), which carry out the reverse reaction of tyrosine phosphorylation, feature in cancer cell biology. The expertly authored chapters will first review the general features of the PTP superfamily, including their overall structure and enzymological properties; use selected examples of individual PTP superfamily members, to illustrate emerging data on the role of PTPs in cancer; and will review the current status of PTP-based drug development efforts. Protein Tyrosine Phosphatases in Cancer,from renowned researchers Benjamin Neel and Nicholas Tonks, is invaluable reading for researchers in oncology, stem cell signaling,and biochemistry.
Author: Damien Thévenin Publisher: Springer Nature ISBN: 1071635697 Category : Science Languages : en Pages : 321
Book Description
This second edition volume expands on the previous edition with discussions on the latest advancements in protein tyrosine phosphatases (PTP) research used to investigate these essential enzymes and new inhibitors. The new techniques covered in the chapters of this book include studying enzymes in vitro, in cells, and in animal models through proteomics, genomics, and structural biology. Furthermore, new advances in pharmacology and drug design have contributed to the developing novel therapeutics that target PTPs. Written in the highly successful Methods in Molecular Biology series format, 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. Cutting-edge and comprehensive, Protein Tyrosine Phosphatases: Methods and Protocols, Second Edition is a valuable resource for both experienced and novel researchers in this field, and will lead to discoveries and accelerated progress in the field of PTP, signal transduction, and drug development.
Author: Rafael Pulido Publisher: MDPI ISBN: 3039216880 Category : Science Languages : en Pages : 240
Book Description
Dual specificity phosphatases (DUSPs) constitute a heterogeneous group of protein tyrosine phosphatases with the ability to dephosphorylate Ser/Thr and Tyr residues from proteins, as well as from other non-proteinaceous substrates including signaling lipids. DUSPs include, among others, MAP kinase (MAPK) phosphatases (MKPs) and small-size atypical DUSPs. MKPs are enzymes specialized in regulating the activity and subcellular location of MAPKs, whereas the function of small-size atypical DUSPs seems to be more diverse. DUSPs have emerged as key players in the regulation of cell growth, differentiation, stress response, and apoptosis. DUSPs regulate essential physiological processes, including immunity, neurobiology and metabolic homeostasis, and have been implicated in tumorigenesis, pathological inflammation and metabolic disorders. Accordingly, alterations in the expression or function of MKPs and small-size atypical DUSPs have consequences essential to human disease, making these enzymes potential biological markers and therapeutic targets. This Special Issue covers recent advances in the molecular mechanisms and biological functions of MKPs and small-size atypical DUSPs, and their relevance in human disease.
Author: Robert B. McComb
Author: Robert B. McComb
Author: José Luis Millan
Author: Rafael Pulido
Author: Susanne Klumpp
Author: Joaquín Arino
Author: Girdhar K. Pandey
Author: Lalima G. Ahuja
Author: Benjamin G. Neel
Author: Damien Thévenin
Author: Rafael Pulido