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The Mechanism Of Collagen Self Assembly
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Book Synopsis The Mechanism of Collagen Self-assembly by : Yuping Li
Download or read book The Mechanism of Collagen Self-assembly written by Yuping Li and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The acceleration of fibrillogenesis rate with increasing pH from 6.6 to 9.2 is consistent with a reduction of surface net charge since the isoelectric point of soluble collagen is approaching. The native D-periodicity of 62 nm was found except at pH 7.1 where collagen molecules form short banding of 50-60 nm in the early stage of fibrillogenesis which might be caused by unusual alignment of collagen molecules in fibrils. We also introduced different monovalent and divalent electrolytes into fibril formation instead of PBS buffer. It was found the fibril formation was facilitated by divalent ions. Divalent ions can shift the isoelectric point of collagen by adsorption. We proposed the adsorbed divalent ions form the salt bridges between collagen which facilitate fibril formation. The unusual periodicities along the collagen fibril were also found which might be come from altered alignment of molecules due to the change of surface charge. These studies provide new insight on understanding the basis for collagen fibril formation and help for designing new biomaterials.
Book Synopsis Collagen Self-assembly by : Darren Anderson
Download or read book Collagen Self-assembly written by Darren Anderson and published by . This book was released on 2006 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collagen is the major structural protein in mammals, and forms the basis of a variety of tissues essential for animal life, including bone, skin, teeth, cornea, tendon, and others. It self-assembles---both in vivo and in vitro---into a variety of biologically important structures, and this self-assembly process is highly dependent on solution pH, ionic strength, and the concentration of the collagen monomer. Kinetic studies demonstrating these dependencies are presented for the formation of the most important aggregate, native type collagen. The cold dissociation of collagen that does not contain complete non-helical telopeptide regions is also demonstrated. Based on these studies, five different types of collagen intermediates are identified and a partially hierarchical fibrillogenesis mechanism is proposed, along with a detailed kinetic model. In order to further understand collagen fibrillogenesis at a molecular level, a previously predicted structure of the collagen monomer is completely relaxed using condensed phase molecular dynamics simulations. For validation purposes, several experimentally solved model collagen structures are simulated in the same way, and the simulation results agree with the crystal structures to within the experimental error. Therefore, a structure of the collagen monomer is proposed that comprises the most complete model currently developed. This model forms the basis for two sets of simulations aimed at explaining the formation of several of the polymorphisms of collagen. First, a three-dimensional analysis of the interactions between collagen monomers in fibrillar aggregates is presented, including hydrophobic-hydrophobic and electrostatic interactions. An examination of these interactions as a function of overlap between monomers demonstrates the origin of the topological regularity in native type collagen. Second, a detailed molecular model for formation of segmental long spacing crystallites of collagen is presented, involving bridging of in-register collagen monomers by nucleotide triphosphate moieties at colocalized acidic and basic residues. The proposed model is confirmed using molecular mechanics and dynamics simulations.
Download or read book Collagen written by Marcel E. Nimni and published by CRC Press. This book was released on 2018-01-18 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series was conceived with the idea of integrating current aspects of ongoing research in the collagen field. The book consists of a spectrum of papers which discus divers aspects such as X-ray structure, the thermodynamics and mechanism of fibrillogenesis, and the use of collagen as a biomaterial for the manufacturing of many implantable, sometimes lifesaving, devises.
Download or read book Collagen written by Peter Fratzl and published by Springer Science & Business Media. This book was released on 2008-05-10 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Not only does this book provide a comprehensive review of current research advances in collagen structure and mechanics, it also explores this biological macromolecule’s many applications in biomaterials and tissue engineering. Readers gain an understanding of the structure and mechanical behavior of type I collagen and collagen-based tissues in vertebrates across all length scales, from the molecular (nano) to the organ (macro) level.
Book Synopsis Multi-scale Extracellular Matrix Mechanics and Mechanobiology by : Yanhang Zhang
Download or read book Multi-scale Extracellular Matrix Mechanics and Mechanobiology written by Yanhang Zhang and published by . This book was released on 2020 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the current state of knowledge in the field of multi-scale ECM mechanics and mechanobiology with a focus on experimental and modelling studies in biomechanical characterization, advanced optical microscopy and imaging, as well as computational modeling. This book also discusses the scale dependency of ECM mechanics, translation of mechanical forces from tissue to cellular level, and advances and challenges in improving our understanding of cellular mechanotransduction in the context of living tissues and organisms.
Book Synopsis Ultrastructure of the Connective Tissue Matrix by : P. Motta
Download or read book Ultrastructure of the Connective Tissue Matrix written by P. Motta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the techniques of electron microscopy have developed so widely and rapidly that they now cover the fields of research once the unique ll:panage of sister research techniques such as biochemistry, physiology, immunology, X-ray diffraction, etc. It is now possible to reach molecular and submolecular levels, making this technique indispensable in every type of research. Electron microscopy alone often provides enough information to solve given problems. In the field of the connective tissue matrix, knowledge of the molecular structure of collagen, pro teoglycans and elastin and their interaction has been to a large extent elucidated by electron microscopy. The field over which electron microscopy ranges in the investigation of the connective tissue matrix is so wide that the aim of this volume is to collect the main ultrastructural acquisitions disseminated in various journals and monographs in one book. The intent ofthis volume is to: (a) integrate different and new microscopic methods and review the results of such an integrative approach; (b) present a comprehensive ultrastructural account of selected aspects of the field; (c) point out gaps or controversial topics in our knowledge; (d) outline pertinent future research and expansion of the subject.
Book Synopsis Protein Self-Assembly by : Jennifer J. McManus
Download or read book Protein Self-Assembly written by Jennifer J. McManus and published by Humana. This book was released on 2020-08-08 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores experimental and computational approaches to measuring the most widely studied protein assemblies, including condensed liquid phases, aggregates, and crystals. The chapters in this book are organized into three parts: Part One looks at the techniques used to measure protein-protein interactions and equilibrium protein phases in dilute and concentrated protein solutions; Part Two describes methods to measure kinetics of aggregation and to characterize the assembled state; and Part Three details several different computational approaches that are currently used to help researchers understand protein self-assembly. 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. Thorough and cutting-edge, Protein Self-Assembly: Methods and Protocols is a valuable resource for researchers who are interested in learning more about this developing field.
Book Synopsis The Role of the Telopeptides of Collagen in Directing in Vitro Self-assembly by : Donald Lawrence Helseth
Download or read book The Role of the Telopeptides of Collagen in Directing in Vitro Self-assembly written by Donald Lawrence Helseth and published by . This book was released on 1981 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Bioinformatics by : Jenny Gu
Download or read book Structural Bioinformatics written by Jenny Gu and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 1105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Bioinformatics was the first major effort to show the application of the principles and basic knowledge of the larger field of bioinformatics to questions focusing on macromolecular structure, such as the prediction of protein structure and how proteins carry out cellular functions, and how the application of bioinformatics to these life science issues can improve healthcare by accelerating drug discovery and development. Designed primarily as a reference, the first edition nevertheless saw widespread use as a textbook in graduate and undergraduate university courses dealing with the theories and associated algorithms, resources, and tools used in the analysis, prediction, and theoretical underpinnings of DNA, RNA, and proteins. This new edition contains not only thorough updates of the advances in structural bioinformatics since publication of the first edition, but also features eleven new chapters dealing with frontier areas of high scientific impact, including: sampling and search techniques; use of mass spectrometry; genome functional annotation; and much more. Offering detailed coverage for practitioners while remaining accessible to the novice, Structural Bioinformatics, Second Edition is a valuable resource and an excellent textbook for a range of readers in the bioinformatics and advanced biology fields. Praise for the previous edition: "This book is a gold mine of fundamental and practical information in an area not previously well represented in book form." —Biochemistry and Molecular Education "... destined to become a classic reference work for workers at all levels in structural bioinformatics...recommended with great enthusiasm for educators, researchers, and graduate students." —BAMBED "...a useful and timely summary of a rapidly expanding field." —Nature Structural Biology "...a terrific job in this timely creation of a compilation of articles that appropriately addresses this issue." —Briefings in Bioinformatics
Book Synopsis Effects of Backbone Modifications on Collagen Self-assembly by : Yitao Zhang
Download or read book Effects of Backbone Modifications on Collagen Self-assembly written by Yitao Zhang and published by . This book was released on 2016 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unnatural amino acid substitutions can provide a wealth of information about protein and peptide folding events. Collagen, the most abundant protein in the animal kingdom, has served as an important model system for unnatural amino acid substitutions due to its broad importance in human disease and its use in constructing synthetic biomaterials. Recently, we incorporated the unnatural amino acid aza-proline into a collagen model peptide (CMP) and demonstrated its utility as a stereodynamic replacement for proline to provide key insights into collagen peptide folding and recognition processes. Replacement of a proline stereocenter with a nitrogen atom in a CMP resulted in stereochemical mimicry and a surprisingly stable triple helix structure. For the first time, this single result demonstrated the effect of stereodynamics in the context of biopolymer self-assembly.
Book Synopsis Computational Biophysics of the Skin by : Bernard Querleux
Download or read book Computational Biophysics of the Skin written by Bernard Querleux and published by CRC Press. This book was released on 2016-04-19 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accessibility of the skin in vivo has resulted in the development of non-invasive methods in the past 40 years that offer accurate measurements of skin properties and structures from microscopic to macroscopic levels. However, the mechanisms involved in these properties are still only partly understood. Similar to many other domains, including
Book Synopsis Self-Assembly by : Ramanathan Nagarajan
Download or read book Self-Assembly written by Ramanathan Nagarajan and published by John Wiley & Sons. This book was released on 2019-01-07 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the state-of-the-art of the diverse self-assembly systems Self-Assembly: From Surfactants to Nanoparticles provides an effective entry for new researchers into this exciting field while also giving the state of the art assessment of the diverse self-assembling systems for those already engaged in this research. Over the last twenty years, self-assembly has emerged as a distinct science/technology field, going well beyond the classical surfactant and block copolymer molecules, and encompassing much larger and complex molecular, biomolecular and nanoparticle systems. Within its ten chapters, each contributed by pioneers of the respective research topics, the book: Discusses the fundamental physical chemical principles that govern the formation and properties of self-assembled systems Describes important experimental techniques to characterize the properties of self-assembled systems, particularly the nature of molecular organization and structure at the nano, meso or micro scales. Provides the first exhaustive accounting of self-assembly derived from various kinds of biomolecules including peptides, DNA and proteins. Outlines methods of synthesis and functionalization of self-assembled nanoparticles and the further self-assembly of the nanoparticles into one, two or three dimensional materials. Explores numerous potential applications of self-assembled structures including nanomedicine applications of drug delivery, imaging, molecular diagnostics and theranostics, and design of materials to specification such as smart responsive materials and self-healing materials. Highlights the unifying as well as contrasting features of self-assembly, as we move from surfactant molecules to nanoparticles. Written for students and academic and industrial scientists and engineers, by pioneers of the research field, Self-Assembly: From Surfactants to Nanoparticles is a comprehensive resource on diverse self-assembly systems, that is simultaneously introductory as well as the state of the art.
Download or read book Proteins written by David Whitford and published by John Wiley & Sons. This book was released on 2013-04-25 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proteins: Structure and Function is a comprehensive introduction to the study of proteins and their importance to modern biochemistry. Each chapter addresses the structure and function of proteins with a definitive theme designed to enhance student understanding. Opening with a brief historical overview of the subject the book moves on to discuss the ‘building blocks’ of proteins and their respective chemical and physical properties. Later chapters explore experimental and computational methods of comparing proteins, methods of protein purification and protein folding and stability. The latest developments in the field are included and key concepts introduced in a user-friendly way to ensure that students are able to grasp the essentials before moving on to more advanced study and analysis of proteins. An invaluable resource for students of Biochemistry, Molecular Biology, Medicine and Chemistry providing a modern approach to the subject of Proteins.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cell Biology of Extracellular Matrix by : E.D. Hay
Download or read book Cell Biology of Extracellular Matrix written by E.D. Hay and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the ten-year interval since the first edition of this volume went to press, our knowledge of extracellular matrix (ECM) function and structure has enor mously increased. Extracellular matrix and cell-matrix interaction are now routine topics in the meetings and annual reviews sponsored by cell biology societies. Research in molecular biology has so advanced the number of known matrix molecules and the topic of gene structure and regulation that we won dered how best to incorporate the new material. For example, we deliberated over the inclusion of chapters on molecular genetics. We decided that with judicious editing we could present the recent findings in molecular biology within the same cell biology framework that was used for the first edition, using three broad headings: what is extracellular matrix, how is it made, and what does it do for cells? Maintaining control over the review of literature on the subject of ECM was not always an easy task, but we felt it was essential to production of a highly readable volume, one compact enough to serve the the student as an introduction and the investigator as a quick update on graduate the important recent discoveries. The first edition of this volume enjoyed con hope the reader finds this edition equally useful. siderable success; we D. Hay Elizabeth vii Contents Introductory Remarks 1 Elizabeth D. Hay PART I. WHAT IS EXTRACELLULAR MATRIX? Chapter 1 Collagen T. F. Linsenmayer 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2. The Collagen Molecule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2. 1. Triple-Helical Domain(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Book Synopsis Self-assembling Biomaterials by : Helena S. Azevedo
Download or read book Self-assembling Biomaterials written by Helena S. Azevedo and published by Woodhead Publishing. This book was released on 2018-04-17 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-assembling biomaterials: molecular design, characterization and application in biology and medicine provides a comprehensive coverage on an emerging area of biomaterials science, spanning from conceptual designs to advanced characterization tools and applications of self-assembling biomaterials, and compiling the recent developments in the field. Molecular self-assembly, the autonomous organization of molecules, is ubiquitous in living organisms and intrinsic to biological structures and function. Not surprisingly, the exciting field of engineering artificial self-assembling biomaterials often finds inspiration in Biology. More important, materials that self-assemble speak the language of life and can be designed to seamlessly integrate with the biological environment, offering unique engineering opportunities in bionanotechnology. The book is divided in five parts, comprising design of molecular building blocks for self-assembly; exclusive features of self-assembling biomaterials; specific methods and techniques to predict, investigate and characterize self-assembly and formed assemblies; different approaches for controlling self-assembly across multiple length scales and the nano/micro/macroscopic properties of biomaterials; diverse range of applications in biomedicine, including drug delivery, theranostics, cell culture and tissue regeneration. Written by researchers working in self-assembling biomaterials, it addresses a specific need within the Biomaterials scientific community. - Explores both theoretical and practical aspects of self-assembly in biomaterials - Includes a dedicated section on characterization techniques, specific for self-assembling biomaterials - Examines the use of dynamic self-assembling biomaterials
Book Synopsis Collagen Self-assembly, Induced Alignment and Quantitative Image Analysis by : Julian Haffegee
Download or read book Collagen Self-assembly, Induced Alignment and Quantitative Image Analysis written by Julian Haffegee and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
