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Author : Daniel J. Felitsky
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (89 download)
Download or read book Thermodynamics of Preferential Solvation in Protein Unfolding written by Daniel J. Felitsky and published by . This book was released on 2003 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vladimir A. Sirotkin
Publisher :
ISBN 13 : 9781536160208
Total Pages : 0 pages
Book Rating : 4.1/5 (62 download)
Download or read book Preferential Solvation and Hydration of Proteins in Water-organic Mixtures: written by Vladimir A. Sirotkin and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the basic principles of a novel methodology to investigate the preferential hydration and solvation of proteins in ternary protein-water-organic solvent systems. Protein-water interactions are well-known to play a critical role in determining the function, structure, and stability of protein macromolecules. Elucidation of the processes occurring upon protein hydration in the presence of third component (organic solvents, salts, urea) is essential in a wide range of biophysical, biomedical, and biotechnological applications. In particular, there are many advantages in employing water-poor organic solvents, including the suppression of undesirable side reactions caused by water, the biocatalysis of reversed hydrolytic reactions (transesterification, peptide synthesis), or increased thermostability. Distinct intermediate protein states induced by organic solvents may be responsible for numerous neurodegenerative diseases (Alzheimer's disease, Parkinson's disease, and Huntington's disease). However, the manner in which organic solvents increase/decrease the thermal stability, induce/reduce the extent of denaturation, and stabilize/destabilize the partially folded conformations of proteins (amyloid fibrils and molten globules) is an intricate function of water content in organic liquids. Preferential hydration/solvation is an effective method for revealing the mechanism of the protein stabilization or denaturation. When a protein interacts with a binary water-organic solvent mixture, the three components do not equally mix. Water or organic solvent molecules exist preferentially in the protein's solvation shell. This difference between the solvation shell and bulk solvent in the solvent components has been termed preferential solvation. Preferential solvation is a thermodynamic quantity that describes the protein surface occupancy by the water and cosolvent molecules. This is associated with the actual numbers of water/cosolvent molecules that are in contact with the protein's surface. It was also found that the protein destabilization is directly associated with the preferential binding of the denaturant molecules to specific protein groups.The aim of our study is to monitor the preferential solvation and preferential hydration of the protein macromolecules at low, intermediate, and high water content in organic solvents at 25 oC. Our approach is based on the simultaneous measurements of the absolute values of the water and organic solvent sorption. The preferential solvation/hydration parameters were calculated using the water and organic solvent sorption values. The preferential solvation/hydration parameters were compared with the corresponding changes in the protein structure that transpire regarding the interaction of the protein with organic solvent and water molecules. The effect of organic solvent on the protein structure was investigated by FTIR (Fourier Transform Infrared) spectroscopy.
Author : Arieh Y. Ben-Naim
Publisher : Springer Science & Business Media
ISBN 13 : 1475765509
Total Pages : 253 pages
Book Rating : 4.4/5 (757 download)
Download or read book Solvation Thermodynamics written by Arieh Y. Ben-Naim and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with a subject that has been studied since the beginning of physical chemistry. Despite the thousands of articles and scores of books devoted to solvation thermodynamics, I feel that some fundamen tal and well-established concepts underlying the traditional approach to this subject are not satisfactory and need revision. The main reason for this need is that solvation thermodynamics has traditionally been treated in the context of classical (macroscopic) ther modynamics alone. However, solvation is inherently a molecular pro cess, dependent upon local rather than macroscopic properties of the system. Therefore, the starting point should be based on statistical mechanical methods. For many years it has been believed that certain thermodynamic quantities, such as the standard free energy (or enthalpy or entropy) of solution, may be used as measures of the corresponding functions of solvation of a given solute in a given solvent. I first challenged this notion in a paper published in 1978 based on analysis at the molecular level. During the past ten years, I have introduced several new quantities which, in my opinion, should replace the conventional measures of solvation thermodynamics. To avoid confusing the new quantities with those referred to conventionally in the literature as standard quantities of solvation, I called these "nonconventional," "generalized," and "local" standard quantities and attempted to point out the advantages of these new quantities over the conventional ones.
Download or read book Protein written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger Gregory
Publisher : CRC Press
ISBN 13 : 1040282512
Total Pages : 596 pages
Book Rating : 4.0/5 (42 download)
Download or read book Protein-Solvent Interactions written by Roger Gregory and published by CRC Press. This book was released on 2024-11-01 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers advances in the interactions of proteins with their solvent environment and provides fundamental physical information useful for the application of proteins in biotechnology and industrial processes. It discusses in detail structure, dynamic and thermodynamic aspects of protein hydration, as well as proteins in aqueous and organic solvents as they relate to protein function, stability and folding.
Author : Eli Ruckenstein
Publisher : Springer Science & Business Media
ISBN 13 : 1441904409
Total Pages : 349 pages
Book Rating : 4.4/5 (419 download)
Download or read book Thermodynamics of Solutions written by Eli Ruckenstein and published by Springer Science & Business Media. This book was released on 2009-06-17 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of a number of papers regarding the thermodynamics and structure of multicomponent systems that we have published during the last decade. Even though they involve different topics and different systems, they have something in common which can be considered as the “signature” of the present book. First, these papers are concerned with “difficult” or very nonideal systems, i. e. systems with very strong interactions (e. g. , hyd- gen bonding) between components or systems with large differences in the partial molar v- umes of the components (e. g. , the aqueous solutions of proteins), or systems that are far from “normal” conditions (e. g. , critical or near-critical mixtures). Second, the conventional th- modynamic methods are not sufficient for the accurate treatment of these mixtures. Last but not least, these systems are of interest for the pharmaceutical, biomedical, and related ind- tries. In order to meet the thermodynamic challenges involved in these complex mixtures, we employed a variety of traditional methods but also new methods, such as the fluctuation t- ory of Kirkwood and Buff and ab initio quantum mechanical techniques. The Kirkwood-Buff (KB) theory is a rigorous formalism which is free of any of the - proximations usually used in the thermodynamic treatment of multicomponent systems. This theory appears to be very fruitful when applied to the above mentioned “difficult” systems.
Author : Wei Wang
Publisher : John Wiley & Sons
ISBN 13 : 1118043588
Total Pages : 400 pages
Book Rating : 4.1/5 (18 download)
Download or read book Aggregation of Therapeutic Proteins written by Wei Wang and published by John Wiley & Sons. This book was released on 2010-12-28 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives pharmaceutical scientists an up-to-date resource on protein aggregation and its consequences, and available methods to control or slow down the aggregation process. While significant progress has been made in the past decade, the current understanding of protein aggregation and its consequences is still immature. Prevention or even moderate inhibition of protein aggregation has been mostly experimental. The knowledge in this book can greatly help pharmaceutical scientists in the development of therapeutic proteins, and also instigate further scientific investigations in this area. This book fills such a need by providing an overview on the causes, consequences, characterization, and control of the aggregation of therapeutic proteins.
Author : Kenneth M.Jr. Merz
Publisher : Springer Science & Business Media
ISBN 13 : 1468468316
Total Pages : 585 pages
Book Rating : 4.4/5 (684 download)
Download or read book The Protein Folding Problem and Tertiary Structure Prediction written by Kenneth M.Jr. Merz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: A solution to the protein folding problem has eluded researchers for more than 30 years. The stakes are high. Such a solution will make 40,000 more tertiary structures available for immediate study by translating the DNA sequence information in the sequence databases into three-dimensional protein structures. This translation will be indispensable for the analy sis of results from the Human Genome Project, de novo protein design, and many other areas of biotechnological research. Finally, an in-depth study of the rules of protein folding should provide vital clues to the protein fold ing process. The search for these rules is therefore an important objective for theoretical molecular biology. Both experimental and theoretical ap proaches have been used in the search for a solution, with many promising results but no general solution. In recent years, there has been an exponen tial increase in the power of computers. This has triggered an incredible outburst of theoretical approaches to solving the protein folding problem ranging from molecular dynamics-based studies of proteins in solution to the actual prediction of protein structures from first principles. This volume attempts to present a concise overview of these advances. Adrian Roitberg and Ron Elber describe the locally enhanced sam pling/simulated annealing conformational search algorithm (Chapter 1), which is potentially useful for the rapid conformational search of larger molecular systems.
Author : Camila Gambini Pereira
Publisher : Academic Press
ISBN 13 : 0128115572
Total Pages : 684 pages
Book Rating : 4.1/5 (281 download)
Download or read book Thermodynamics of Phase Equilibria in Food Engineering written by Camila Gambini Pereira and published by Academic Press. This book was released on 2018-10-17 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamics of Phase Equilibria in Food Engineering is the definitive book on thermodynamics of equilibrium applied to food engineering. Food is a complex matrix consisting of different groups of compounds divided into macronutrients (lipids, carbohydrates, and proteins), and micronutrients (vitamins, minerals, and phytochemicals). The quality characteristics of food products associated with the sensorial, physical and microbiological attributes are directly related to the thermodynamic properties of specific compounds and complexes that are formed during processing or by the action of diverse interventions, such as the environment, biochemical reactions, and others. In addition, in obtaining bioactive substances using separation processes, the knowledge of phase equilibria of food systems is essential to provide an efficient separation, with a low cost in the process and high selectivity in the recovery of the desired component. This book combines theory and application of phase equilibria data of systems containing food compounds to help food engineers and researchers to solve complex problems found in food processing. It provides support to researchers from academia and industry to better understand the behavior of food materials in the face of processing effects, and to develop ways to improve the quality of the food products. - Presents the fundamentals of phase equilibria in the food industry - Describes both classic and advanced models, including cubic equations of state and activity coefficient - Encompasses distillation, solid-liquid extraction, liquid-liquid extraction, adsorption, crystallization and supercritical fluid extraction - Explores equilibrium in advanced systems, including colloidal, electrolyte and protein systems
Author : Paul E. Smith
Publisher : CRC Press
ISBN 13 : 1439899231
Total Pages : 383 pages
Book Rating : 4.4/5 (398 download)
Download or read book Fluctuation Theory of Solutions written by Paul E. Smith and published by CRC Press. This book was released on 2016-04-19 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are essentially two theories of solutions that can be considered exact: the McMillan-Mayer theory and Fluctuation Solution Theory (FST). The first is mostly limited to solutes at low concentrations, while FST has no such issue. It is an exact theory that can be applied to any stable solution regardless of the number of components and their co
Author : Derek J. Chadwick
Publisher : John Wiley & Sons
ISBN 13 : 0470514159
Total Pages : 282 pages
Book Rating : 4.4/5 (75 download)
Download or read book Protein Conformation written by Derek J. Chadwick and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: How the amino acid sequence of a protein determines its three-dimensional structure is a major problem in biology and chemistry. Leading experts in the fields of NMR spectroscopy, X-ray crystallography, protein engineering and molecular modeling offer provocative insights into current views on the protein folding problem and various aspects for future progress.
Author : Arieh Ben-Naim
Publisher : Elsevier
ISBN 13 : 0443219168
Total Pages : 213 pages
Book Rating : 4.4/5 (432 download)
Download or read book The Kirkwood-Buff Theory of Solutions written by Arieh Ben-Naim and published by Elsevier. This book was released on 2023-10-01 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Kirkwood-Buff Theory of Solutions: With Selected Applications to Solvation and Proteins presents the Kirkwood-Buff (KB) Theory of solution in a simple and didactic manner, making it understandable to those with minimal background in thermodynamics. Aside from the fact that the KB Theory may be the most important and useful theory of solutions, it is also the most general theory that can be applied to all possible solutions, including aqueous solutions of proteins and nucleic acids. Introductory chapters give readers grounding in the necessary chemical thermodynamics and statistical mechanics, but then move to a systematic derivation of Kirkwood-Buff theory and its inversion. Originally published in 1951, the KB theory was dormant for over 20 years. It became extremely useful after the publication of the "Inversion of the KB theory" by the author Arieh Ben-Naim in 1978. The book explains all necessary concepts in statistical mechanics featured in the theory in a simple and intuitive way. Researchers will find the theory useful in solving any problem in mixtures or solutions in any phase. Some examples of applications of the KB theory, to water, aqueous solutions, protein folding, and self-association of proteins, are provided in the book. - Presents an authoritative accounting of the Kirkwood-Buff (KB) Theory of solution as well as the derivation of the inversion of the Kirkwood-Buff Theory - Provides a grounding in the necessary chemical thermodynamics and statistical mechanics - Features useful examples of the applications of KB Theory to water, aqueous solutions, protein folding, and self-association of proteins - Written by world-renowned expert Arieh Ben-Naim, who himself developed the "inversion" of Kirkwood-Buff theory
Author :
Publisher :
ISBN 13 :
Total Pages : 886 pages
Book Rating : 4.F/5 ( download)
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Feig
Publisher : John Wiley & Sons
ISBN 13 : 3527629262
Total Pages : 334 pages
Book Rating : 4.5/5 (276 download)
Download or read book Modeling Solvent Environments written by Michael Feig and published by John Wiley & Sons. This book was released on 2009-12-09 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive view of the current methods for modeling solvent environments with contributions from the leading researchers in the field. Throughout, the emphasis is placed on the application of such models in simulation studies of biological processes, although the coverage is sufficiently broad to extend to other systems as well. As such, this monograph treats a full range of topics, from statistical mechanics-based approaches to popular mean field formalisms, coarse-grained solvent models, more established explicit, fully atomic solvent models, and recent advances in applying ab initio methods for modeling solvent properties.
Author : Barbara Kirchner
Publisher : Springer
ISBN 13 : 3319897942
Total Pages : 295 pages
Book Rating : 4.3/5 (198 download)
Download or read book Ionic Liquids II written by Barbara Kirchner and published by Springer. This book was released on 2018-09-03 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. The chapters “Ionic Liquid–Liquid Chromatography: A New General Purpose Separation Methodology”, “Proteins in Ionic Liquids: Current Status of Experiments and Simulations”, “Lewis Acidic Ionic Liquids” and "Quantum Chemical Modeling of Hydrogen Bonding in Ionic Liquids" are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Author : Arieh Y. Ben-Naim
Publisher : Springer Science & Business Media
ISBN 13 : 1475715986
Total Pages : 700 pages
Book Rating : 4.4/5 (757 download)
Download or read book Statistical Thermodynamics for Chemists and Biochemists written by Arieh Y. Ben-Naim and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was planned and written with one central goal in mind: to demonstrate that statistical thermodynamics can be used successfully by a broad group of scientists, ranging from chemists through biochemists to biologists, who are not and do not intend to become specialists in statistical thermodynamics. The book is addressed mainly to gradu ate students and research scientists interested in designing experiments the results of which may be interpreted at the molecular level, or in interpreting such experimental results. It is not addressed to those who intend to practice statistical thermodynamics per se. With this goal in mind, I have expended a great deal of effort to make the book clear, readable, and, I hope, enjoyable. This does not necessarily mean that the book as a whole is easy to read. The first four chapters are very detailed. The last four become progressively more difficult to read, for several reasons. First, presuming that the reader has already acquired familiarity with the methods and arguments presented in the first part, I felt that similar arguments could be skipped later on, leaving the details to be filled in by the reader. Second, the systems themselves become progressively more com plicated as we proceed toward the last chapter.
Author : Biman Bagchi
Publisher : Cambridge University Press
ISBN 13 : 1107037298
Total Pages : 383 pages
Book Rating : 4.1/5 (7 download)
Download or read book Water in Biological and Chemical Processes written by Biman Bagchi and published by Cambridge University Press. This book was released on 2013-11-14 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unified overview of the dynamical properties of water and its unique and diverse role in biological and chemical processes.
