Chemical Biology of Glycoproteins

Chemical Biology of Glycoproteins PDF Author: Zhongping Tan
Publisher: Royal Society of Chemistry
ISBN: 1782623337
Category : Science
Languages : en
Pages : 441

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Book Description
Glycans play a vital role in modulating protein structure and function from involvement in protein folding, solubility and stability to regulation of tissue distribution, recognition specificity, and biological activity. They can act as both positive and negative regulators of protein function, providing an additional level of control with respect to genetic and environmental conditions. Due to the complexity of glycosylated protein forms, elucidating structural and functional information has been challenging task for researchers but recent development of chemical biology-based tools and techniques is bridging these knowledge gaps. This book provides a thorough review of the current state of glycoprotein chemical biology, describing the development and application of glycoprotein and glycan synthesis technologies for understanding and manipulating protein glycosylation.

Chemical Biology of Glycoproteins

Chemical Biology of Glycoproteins PDF Author: Zhongping Tan
Publisher: Royal Society of Chemistry
ISBN: 1782623337
Category : Science
Languages : en
Pages : 441

Get Book

Book Description
Glycans play a vital role in modulating protein structure and function from involvement in protein folding, solubility and stability to regulation of tissue distribution, recognition specificity, and biological activity. They can act as both positive and negative regulators of protein function, providing an additional level of control with respect to genetic and environmental conditions. Due to the complexity of glycosylated protein forms, elucidating structural and functional information has been challenging task for researchers but recent development of chemical biology-based tools and techniques is bridging these knowledge gaps. This book provides a thorough review of the current state of glycoprotein chemical biology, describing the development and application of glycoprotein and glycan synthesis technologies for understanding and manipulating protein glycosylation.

Addressing Roles for Glycans in Immunology using Chemical Biology

Addressing Roles for Glycans in Immunology using Chemical Biology PDF Author: Matthew S. Macauley
Publisher: Frontiers Media SA
ISBN: 2889638669
Category :
Languages : en
Pages : 175

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Book Description


Essentials of Glycobiology

Essentials of Glycobiology PDF Author: Ajit Varki
Publisher: CSHL Press
ISBN: 9780879696818
Category : Medical
Languages : en
Pages : 694

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Book Description
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.

The Biology of Glycoproteins

The Biology of Glycoproteins PDF Author: Raymond Ivatt
Publisher: Springer Science & Business Media
ISBN: 1468474642
Category : Medical
Languages : en
Pages : 458

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Book Description
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.

Glycoscience

Glycoscience PDF Author: Bertram O. Fraser-Reid
Publisher: Springer Science & Business Media
ISBN: 3540361545
Category : Science
Languages : en
Pages : 2847

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Book Description
As a reflection of the quantum leap that has been made in the study of glycostructures, the first edition of this book has been completely revised and updated. The editors give up-to-date information on glycostructures, their chemistry and chemical biology in the form of a completely comprehensive survey. Glycostructures play highly diverse and crucial roles in a myriad of organisms and important systems in biology, physiology, medicine, bioengineering and technology. Only in recent years have the tools been developed to partly understand the highly complex functions and the chemistry behind them. While many facts remain undiscovered, this MRW has been contributed to by a large number of the world’s leading researchers in the field.

Glycobiology Protocols

Glycobiology Protocols PDF Author: Inka Brockhausen
Publisher: Springer Science & Business Media
ISBN: 1597451673
Category : Science
Languages : en
Pages : 388

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Book Description
Glycobiology involves studies of complex carbohydrates and posttrans- tional modifications of proteins, and has become an important interdiscip- nary field encompassing chemistry, biochemistry, biology, physiology, and pathology. Although initial research was directed toward elucidation of the different carbohydrate structures and the enzymes synthesizing them, the field has now moved toward identifying the functions of carbohydrates. The pro- cols described in Glycobiology Protocols form a solid basis for investigations of glycan functions in health and disease. The cloning of many of the genes participating in glycosylation processes has helped to enhance our knowledge of how glycosylation is controlled, but has also added another dimension of complexity to the great heterogeneous variety of the structures of the oligos- charides of glycoproteins, proteoglycans, and glycolipids. A family of similar enzyme proteins exists for each glycosylation step. Glycosyltransferases are extremely specific for both the nucleotide sugar donor and the acceptor s- strate, but many other factors control sugar transfer, including the locali- tion and topology of enzymes, cofactors, possible chaperone proteins, and the availability of sugar acceptor substrates. The analysis of the intracellular organization of glycosylation and of the factors controlling the activities of the participating enzymes in the cell are important areas that need more research efforts. Another challenge for future research is to understand the glycodynamics of a cell, that is, how the cell responds to stimuli leading to biological and pathological changes in terms of alterations in glycosylation, and how this affects the biology of the cell.

Transforming Glycoscience

Transforming Glycoscience PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309260868
Category : Science
Languages : en
Pages : 171

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Book Description
A new focus on glycoscience, a field that explores the structures and functions of sugars, promises great advances in areas as diverse as medicine, energy generation, and materials science, this report finds. Glycans-also known as carbohydrates, saccharides, or simply as sugars-play central roles in many biological processes and have properties useful in an array of applications. However, glycans have received little attention from the research community due to a lack of tools to probe their often complex structures and properties. Transforming Glycoscience: A Roadmap for the Future presents a roadmap for transforming glycoscience from a field dominated by specialists to a widely studied and integrated discipline, which could lead to a more complete understanding of glycans and help solve key challenges in diverse fields.

Glycoprotein Methods and Protocols

Glycoprotein Methods and Protocols PDF Author: Anthony P. Corfield
Publisher: Springer Science & Business Media
ISBN: 1592590489
Category : Science
Languages : en
Pages : 491

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Book Description
The mucins (mucus glycoproteins) have long been a complex corner of glycoprotein biology. While dramatic advances in the separation, structural an- ysis, biosynthesis, and degradation have marked the progress in general glycop- tein understanding, the mucins have lagged behind. The reasons for this lack of progress have always been clear and are only now being resolved. The mucins are very large molecules; they are difficult to separate from other molecules present in mucosal secretions or membranes; they are often degraded owing to natural protective functions or to isolation methodology and their peptide and oligos- charide structures are varied and complex. Understanding these molecules has demanded progress in several major areas. Isolation techniques that protect the intact mucins and allow dissociation from other adsorbed but discrete molecules needed to be developed and accepted by all researchers in the field. Improved methods for the study of very large molecules with regard to their aggregation and polymerization were also needed. Structural analysis of the peptide domains and the multitude of oligosaccharide chains was required for smaller sample sizes, for multiple samples, and in shorter time. In view of these problems it is perhaps not surprising that the mucins have remained a dilemma, of obvious biological importance and interest, but very difficult to analyze.

Glycoproteins

Glycoproteins PDF Author: Jean Montreuil
Publisher: Elsevier
ISBN: 0444820752
Category : Active oxygen
Languages : en
Pages : 673

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Book Description
Part I covers modern advances in the determination ofglycoprotein structure and in the biosynthesis of mammalian, bacterial, yeast, plant and insect glycoproteins. There are alsotwo chapters on functional aspects (glycoprotein hormones andcollagens). The content of the volume is very comprehensive in that, mostcontributors have focussed on discussing, in depth, the wealthof most recent advances in their field, and referring to previousreviews of older work for background information. This method caneffectively produce a very wide subject coverage in a smallernumber of chapters/volumes. The volume is an importantinformation source for all glycobiologist researchers (seniorinvestigators, post-doctoral fellows and graduate students), andas a good, comprehensive, reference text for scientists working inthe life sciences.

Glycopeptides and Glycoproteins

Glycopeptides and Glycoproteins PDF Author: Valentin Wittmann
Publisher: Springer Science & Business Media
ISBN: 3540367608
Category : Science
Languages : en
Pages : 271

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Book Description
In the last 50 years molecular biology was dominated by the exploration of proteins and nucleic acids. Beside their role in energy metabolism, oligos- charides,which represent thethirdclass ofbiomacromolecules, have received less attention. Today it is well established that oligosaccharides are involved in many important biologicalregulation and recognition processes fromp- tein folding to cell-cell communication. Glycosylation of proteins is the most complexformofco-andposttranslationalmodi'cation. Thedeterminationof structure-function relationships, however, remains dif'cult due to the mic- heterogeneity of glycoproteins that exist in many different glycoforms. Thus chemical synthesis of glycoproteins and glycopeptides with de'ned glycan structures plays a pivotal role for the detailed determination of the role of protein glycosylation. This topic is covered by the ?rst two chapters of this bookdealingwiththechemicaland enzymatic synthesis ofglycopeptides and glycoproteins. The third chapter describes the construction of glycopeptide andglycoproteinmimetics containingnon-naturalstructuralelements. These so-calledneoglycopeptidesandneoglycoproteins,respectively,canprovide- sight on the importance of distinct structural elements on biological activity andmayhaveimproved propertiessuchasanincreased stability. Theappli- tion of synthetic glycopeptides, in many cases at the clinical level, as vaccines forbothcancerandHIVisthesubjectofthefourthchapter. Glycopeptide antibiotics are glycosylated secondary metabolites of bacteria and fungi that are synthesized by non-ribosomal peptide synthetases. Some of them serve as antibiotics of last resort in the treatment of nosocomial infections with enterococci and methicillin-resistant Staphylococcus aureus (MRSA) strains. Their structure, biosynthesis, and mode of action are summarized in the ?fth chapter. The last chapter covers current methods for the determination of high-resolution structures of glycopeptides and glycoproteins mainly based onNMRspectroscopy, X-raycrystallography,and molecular modeling.