Download or read book Deterministic Design of Peptide membrane Interactions written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Membrane Peptide Interactions written by Nuno C. Santos and published by . This book was released on 2020 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the importance of peptide-membrane interactions, mostly aiming at developing new therapeutic approaches. The experimental and computational methodologies used to investigate such interactions reveal the evolution of existing biophysical methodologies, shedding some light on potential applications of peptides, as well as on the improvement of their design. Understanding the determinants for peptide-membrane interactions may also improve the knowledge of membrane functions such as the membrane transport, fusion, and signaling processes, contributing to the development of new agents for highly relevant applications ranging from disease treatment to food technology.
Download or read book Membrane active Peptides written by Miguel A. R. B. Castanho and published by Internat'l University Line. This book was released on 2010 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peptide Membrane Interactions written by and published by . This book was released on 2022-01-28 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will address several related aspects of peptide interactions with membranes. It will consider model theoretical and experimental systems with relevance to fundamental questions in cell biology, including how peptides and proteins behave within biological membranes.
Download or read book Peptide membrane Structure and Interactions written by Ettore Benedetti and published by . This book was released on 2000 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopic Studies of Peptide membrane Interactions written by Kathryn Blakey Dupont and published by . This book was released on 2013 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biophysical Interactions of Peptides and Their Analogues with Lipid Membranes written by Anja Stulz and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Many drugs, displaying a wide range of structures and diverse applications, can cross or bind to lipid membranes. Quantitative understanding of membrane interactions is thus important for several therapeutic approaches. First, membrane permeabilization represents the dominating mode of action of antimicrobial peptides (AMPs) and their synthetic mimics (SMAMPs). In terms of clinical applications, selectivity for bacterial over mammalian membranes is as important as good activity. Second, membrane interactions might influence loading, retaining, and releasing drugs from lipid-based drug delivery systems in a time controlled and targeted manner. Understanding the binding behaviour of the peptide drug exenatide to lipid membranes is not only important for characterization of its release from vesicular phospholipid gels, but might also help to understand other complex peptide-lipid interactions. The main aim of this thesis was to derive a mechanistic understanding of interactions of peptides and their analogues with model lipid membranes with a focus on the lipid composition of a membrane. Membrane permeabilization induced by AMPs and SMAMPs was quantified by a lifetime-based leakage assay using calcein-loaded vesicles. Different leakage behaviours were identified by considering active concentrations, strengths of individual leakage events, L1, and cumulative kinetics. Further experiments using isothermal titration calorimetry (ITC), monolayer adsorption measurements, and differential scanning calorimetry (DSC) helped to characterize the initial binding of AMPs and SMAMPs to lipid membranes and their propensity to induce electrostatic lipid clustering. Leakage experiments showed that the leakage behaviour changes with both, the structure of the AMP or SMAMP and the lipid composition of the membrane. The activity seems to increase if a membrane-active agent favours a permeabilization mechanism to which the particular lipid composition is especially susceptible. A closer look at kinetic profiles allowed distinguishing leakage induced by asymmetric stress from leakage events that occur stochastically. Very hydrophobic and unselective compounds seem to act mainly by hydrophobically driven asymmetry stress, especially when acting on zwitterionic phosphatidylcholine (PC) membranes. This mechanism brings about poor selectivity because all lipid membranes (bacterial and mammalian) contain a hydrophobic core. Stochastic leakage events, on the other hand, probably depend more on lipid compositions. Negatively charged lipids like phosphatidylglycerol (PG) or cardiolipin (CL) triggered the initial electrostatic attraction of polycationic AMPs or SMAMPs to bacterial membranes. High amounts of phosphatidylethanolamine (PE) seem to counteract the unselective asymmetry stress mechanism. Finally, especially strong leakage events were induced in vesicles containing CL. In this way, compounds that induce only rare leakage events might still be effective. In the second part of the thesis, an ITC fit model was introduced to study complex peptide-lipid interactions based on primary binding of peptide to the lipid layer and secondary binding to pre-bound peptide. Exenatide served as an exemplary peptide that interacts electrostatically with mixed POPC/POPG liposomes and self-associates at Kd = 46 μM. A global fit of various ITC curves revealed that exenatide binds primarily to a binding site at the outer membrane leaflet composed of 2-3 negatively charged POPG and some POPC molecules. Primary binding showed high affinity with a Kd1 of 0.2-0.6 μM, while secondary binding with a Kd2 of 10-46 μM was weaker. ITC was able to quantify primary and secondary binding separately, based on different binding enthalpies. Unlike ITC, other methods such as tryptophan fluorescence and microscale thermophoresis (MST) probably represent only a summary or average of both effects. Many similar ITC data can be found in literature that possibly involve primary and secondary binding effects. Those data could benefit from a fit model as presented in this thesis
Download or read book A Quantitative Kinetic Comparison of the Peptide membrane Interactions of Two Transportans and Two Mastoparans written by Lindsay Elyse Yandek and published by . This book was released on 2007 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peptides Targeting Protein Protein Interactions Methods and Applications written by Luca Domenico D’Andrea and published by Frontiers Media SA. This book was released on 2021-12-06 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Simulations of Protein Structures and Interactions written by Serafin Fraga and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein engineering endeavors to design new peptides and proteins or to change the structural and/or functional characteristics of existing ones for specific purposes, opening the way for the development of new drugs. This work develops in a comprehensive way the theoretical formulation for the methods used in computer-assisted modeling and predictions, starting from the basic concepts and proceeding to the more sophisticated methods, such as Monte Carlo and molecular dynamics. An evaluation of the approximations inherent to the simulations will allow the reader to obtain a perspective of the possible deficiencies and difficulties and approach the task with realistic expectations. Examples from the authors laboratories, as well as from the literature provide useful information.
Download or read book Interactions Between amyloid Peptide and Model Neuronal Membranes written by John J. Kremer and published by . This book was released on 2001 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peptide Bionanomaterials written by Mohamed A. Elsawy and published by Springer Nature. This book was released on 2023-08-28 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular self-assembly has been exploited by nature for developing the higher functional macromolecular structures of both the genome and proteome. Inspired by nature, there has been a surge of research, in the last two decades, for the molecular engineering of peptide-based self-assembling nanostructures, adopting the bottom-up design approach. This book gives the reader an overview on the design rules for de novo self-assembling peptide and reviews the diverse range of bioinspired peptide nanostructures such as β-sheet and β-hairpin, α-helical and coiled coil, self-assembling short peptides and peptidomimetics, collagen-based and elastin-like peptides, silk peptides, peptide amphiphiles, peptides co-polymers and others. The book also covers the wide variety of responsive and functional biomaterials that have been innovated based on those nanostructures for various applications ranging from tissue engineering, therapeutics and drug delivery to antimicrobial nanomaterials and biosensors. Finally, the book also discusses the peptide bionanomaterials global market and the future of the emerging industry. Chapter “Characterization of Peptide-Based Nanomaterials” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Biomimetic Materials And Design written by Angela Dillow and published by CRC Press. This book was released on 2002-08-28 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailing techniques in wound healing and reconstruction, this reference describes the mechanisms and architecture of biological systems to formulate and design natural and synthetic compounds, degradable and non-degradable scaffolds, and targeted drug delivery devices. It offers strategies to control adhesive interactions, elicit specific cellular responses, and improve the biocompatibility, performance, and durability of prosthetic materials. Covering advances in the field, the book discusses the effect of topographical features on cell behaviors such as orientation, adhesion, migration, proliferation, and differentation.
Download or read book Dancing Protein Clouds Intrinsically Disordered Proteins in the Norm and Pathology written by Vladimir Uversky and published by Academic Press. This book was released on 2019-09-15 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Dancing protein clouds: Intrinsically disordered proteins in the norm and pathology" represents a set of selected studies on a variety of research topics related to intrinsically disordered proteins. Topics in this update include structural and functional characterization of several important intrinsically disordered proteins, such as 14-3-3 proteins and their partners, as well as proteins from muscle sarcomere; representation of intrinsic disorder-related concept of protein structure-function continuum; discussion of the role of intrinsic disorder in phenotypic switching; consideration of the role of intrinsically disordered proteins in the pathogenesis of neurodegenerative diseases and cancer; discussion of the roles of intrinsic disorder in functional amyloids; demonstration of the usefulness of the analysis of translational diffusion of unfolded and intrinsically disordered proteins; consideration of various computational tools for evaluation of functions of intrinsically disordered regions; and discussion of the role of shear stress in the amyloid formation of intrinsically disordered regions in the brain. Provides some recent studies on the intrinsically disordered proteins and their functions, as well as on the involvement of intrinsically disordered proteins in pthogenesis of various diseases Contains numerous illustrative materials (color figures, diagrams, and tables) to help the readers to delve in the information provided Includes contributions from recognized experts in the field
Download or read book Biomimetic Medical Materials written by Insup Noh and published by Springer. This book was released on 2018-11-23 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the current status in the field of biomimetic medical materials and illustrates research into their applications in tissue engineering. The book is divided into six parts, focusing on nano biomaterials, stem cells, tissue engineering, 3D printing, immune responses and intellectual property. Each chapter has its own introduction and outlines current research trends in a variety of applications of biomimetic medical materials. The biomimetic medical materials that are covered include functional hydrogels, nanoparticles for drug delivery and medicine, the 3D bioprinting of biomaterials, sensor materials, stem cell interactions with biomaterials, immune responses to biomaterials, biodegradable hard scaffolds for tissue engineering, as well as other important topics, like intellectual property. Each chapter is written by a team of experts. This volume attempts to introduce the biomimetic properties of biomedical materials within the context of our current understanding of the nanotechnology of nanoparticles and fibres and the macroscopic aspects of 3D bioprinting.
Download or read book Computational Protein Design written by Ilan Samish and published by Humana. This book was released on 2016-12-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim this volume is to present the methods, challenges, software, and applications of this widespread and yet still evolving and maturing field. Computational Protein Design, the first book with this title, guides readers through computational protein design approaches, software and tailored solutions to specific case-study targets. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Computational Protein Design aims to ensure successful results in the further study of this vital field.
Download or read book A First Course in Systems Biology written by Eberhard Voit and published by Garland Science. This book was released on 2017-09-05 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: A First Course in Systems Biology is an introduction for advanced undergraduate and graduate students to the growing field of systems biology. Its main focus is the development of computational models and their applications to diverse biological systems. The book begins with the fundamentals of modeling, then reviews features of the molecular inventories that bring biological systems to life and discusses case studies that represent some of the frontiers in systems biology and synthetic biology. In this way, it provides the reader with a comprehensive background and access to methods for executing standard systems biology tasks, understanding the modern literature, and launching into specialized courses or projects that address biological questions using theoretical and computational means. New topics in this edition include: default modules for model design, limit cycles and chaos, parameter estimation in Excel, model representations of gene regulation through transcription factors, derivation of the Michaelis-Menten rate law from the original conceptual model, different types of inhibition, hysteresis, a model of differentiation, system adaptation to persistent signals, nonlinear nullclines, PBPK models, and elementary modes. The format is a combination of instructional text and references to primary literature, complemented by sets of small-scale exercises that enable hands-on experience, and large-scale, often open-ended questions for further reflection.
