Membrane Glycoproteins

Membrane Glycoproteins: A Review of Structure and Function deals with membrane glycoproteins found in biological systems. The book describes the structure and biosynthesis of the glycoproteins in relation to known or postulated functions in membranes. The text opens with an introduction and a topic on detection and distribution of membrane glycoproteins. The book then notes that the isolation of membrane glycoproteins brought by the progress in research and technology of membrane solubilization and purification of the soluble components is now possible. Discussion is also directed to glycoproteins as being integral components of intracellular membranes, and not just located on cell surfaces. Through the structural analysis of glycoproteins produced by the secretory glands, analysis of human blood group antigens is available. Likewise, discoveries are made, explaining that lectins are useful reagents in detecting the type and numbers of glycoproteins found on cellular members. Lectins are likewise being widely used in tests for carbohydrate-containing substances in membrane-mediated processes. The metabolism, growth control, and cell surface reactions of membrane glycoproteins are also explained. The book can serve as a guide for biologists, chemists, biochemists, and academicians interested in the study of membranes or glycoproteins.

Sugar chains (glycans) are often attached to proteins and lipids and have multiple roles in the organization and function of all organisms. "Essentials of Glycobiology" describes their biogenesis and function and offers a useful gateway to the understanding of glycans.

Membrane Glycoproteins: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Membrane Glycoproteins. The editors have built Membrane Glycoproteins: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Membrane Glycoproteins in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Membrane Glycoproteins: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

It was just about ten years ago that platelet membrane glycoproteins were first charac terized and their abnormalities in congenital bleeding disorders first recognized. Dur ing this decade there has been a remarkable growth in our understanding of the structure and membrane organization of the platelet surface glycoproteins, their in teractions with external ligands during the process of hemostasis, and their defects causing hemorrhagic disease. These studies have advanced the knowledge of platelet involvement in hemostasis from a cellular to a molecular level, and they have provided a model for contact interactions among other cell types. This seemed a proper time to ask those who contributed major observations and insights during these past years to review their progress and to assess the state of our present knowledge. We have planned this volume to begin with the biochemistry of platelet membrane glycoproteins themselves and proceed through their involvement in platelet function to the final considerations of the platelet's role in maintaining the integrity of the vascular system. Our aim was an integrated presentation on the blood platelet from the perspective of its highly specialized and reactive cell surface. James N. George Alan T. Nurden David R. Phillips vii Contents I. INTRODUCTION 1. Plasma Membrane Receptors and Platelet Response Ernst F. Wscher 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Platelet Receptor Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . . . . . . . . . . 2. 1. Receptors Involved in Platelet Adhesion and in Cell-Cell Contact. . . 5 2. 2. Receptors Involved in Platelet Activation. . . . . . . . . . . . . . . . . . . 6 . . . . 3. Conclusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 II.

Membrane Glycoproteins—Advances in Research and Application: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Ion Channels. The editors have built Membrane Glycoproteins—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Ion Channels in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Membrane Glycoproteins—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

This book is in many ways a sequel to The Biochemistry ojGlycoproteins and Proteoglycans. The enormous recent progress in understanding the biological roles of glycoproteins has prompted the present volume. The reasons for studying glycoproteins have multiplied, and in the present volume the roles played by glycoproteins are explored in a variety of biological situations. The first two chapters describe molecules involved in cell-substratum and cell-cell interactions in a broad sense, and also focus on recent progress in identifying specific attachment molecules. Our understanding of how normal processes, such as cellular differentiation and tissue organization, are regulated is dependent on understanding how cells interact with the extracellular matrix. When these processes go awry the consequences can be tragic, for example, when manifest as birth de fects and cancer. Our ability to devise appropriate therapies is in many cases limited by our understanding of such cell-matrix interactions. The third chapter explores the roles by glycoproteins during early mammalian development. The carbohydrate portions c1early play very important roles in presenting information during early embryogenesis, and an unusual tumor stern cell, the embryonal carcinoma, looks very promising in pro viding an experimental system for understanding how the expression of these complex carbohydrate determinants is regulated. The next three chapters explore the biology of glycoproteins in distinct situations: in the immune system, in the nervous system, and during erythropoiesis.