Molecular Biology of the Cell

Molecular Biology of the Cell PDF Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0

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Book Description

Molecular Biology of the Cell

Molecular Biology of the Cell PDF Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0

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Book Description


Peptide and Protein Interaction with Membrane Systems

Peptide and Protein Interaction with Membrane Systems PDF Author: Sara Bobone
Publisher: Springer
ISBN: 3319064347
Category : Science
Languages : en
Pages : 147

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Book Description
In her thesis, Sara Bobone outlines spectroscopic studies of antimicrobial peptides (AMPs) which are promising lead compounds for drugs used to fight multidrug resistant bacteria. Bobone shows that AMPs interact with liposomes and she clarifies the structure of pores formed by one of these molecules. These results help us to understand how AMPs are selective for bacterial membranes and how their activity can be finely tuned by modifying their sequence. Findings which solve several conundrums debated in the literature for years. In addition, Bobone uses liposomes as nanotemplates for the photopolymerization of hydrogels - exploiting the self- assembly properties of phospholipids. Bobone was able to trap an enzyme using nanometeric particles, while still allowing its activity by the diffusion of substrates and products through the network of the polymer. The innovative nano devices described in this thesis could solve many of the hurdles still hampering the therapeutic application of protein-based drugs.

Peptide-Lipid Interactions

Peptide-Lipid Interactions PDF Author: Sidney A. Simon
Publisher: Academic Press
ISBN: 0080925855
Category : Science
Languages : en
Pages : 606

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Book Description
This volume contains a comprehensive overview of peptide-lipid interactions by leading researchers. The first part covers theoretical concepts, experimental considerations, and thermodynamics. The second part presents new results obtained through site-directed EPR, electron microscopy, NMR, isothermal calorimetry, and fluorescence quenching. The final part covers problems of biological interest, including signal transduction, membrane transport, fusion, and adhesion. Key Features * world-renowned experts * state-of-the-art experimental methods * monolayers, bilayers, biological membranes * theoretical aspects and computer simulations * rafts * synaptic transmission * membrane fusion * signal transduction

Inhibitors of Protein–Protein Interactions

Inhibitors of Protein–Protein Interactions PDF Author: Ali Tavassoli
Publisher: Royal Society of Chemistry
ISBN: 178801569X
Category : Science
Languages : en
Pages : 357

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Book Description
Protein-protein interactions (PPI) are at the heart of the majority of cellular processes, and are frequently dysregulated or usurped in disease. Given this central role, the inhibition of PPIs has been of significant interest as a means of treating a wide variety of diseases. However, there are inherent challenges in developing molecules capable of disrupting the relatively featureless and large interfacial areas involved. Despite this, there have been a number of successes in this field in recent years using both traditional drug discovery approaches and innovative, interdisciplinary strategies using novel chemical scaffolds. This book comprehensively covers the various aspects of PPI inhibition, encompassing small molecules, peptidomimetics, cyclic peptides, stapled peptides and macrocycles. Illustrated throughout with successful case studies, this book provides a holistic, cutting-edge view of the subject area and is ideal for chemical biologists and medicinal chemists interested in developing PPI inhibitors.

Free Energy Calculations

Free Energy Calculations PDF Author: Christophe Chipot
Publisher: Springer Science & Business Media
ISBN: 3540384472
Category : Language Arts & Disciplines
Languages : en
Pages : 528

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Book Description
Free energy constitutes the most important thermodynamic quantity to understand how chemical species recognize each other, associate or react. Examples of problems in which knowledge of the underlying free energy behaviour is required, include conformational equilibria and molecular association, partitioning between immiscible liquids, receptor-drug interaction, protein-protein and protein-DNA association, and protein stability. This volume sets out to present a coherent and comprehensive account of the concepts that underlie different approaches devised for the determination of free energies. The reader will gain the necessary insight into the theoretical and computational foundations of the subject and will be presented with relevant applications from molecular-level modelling and simulations of chemical and biological systems. Both formally accurate and approximate methods are covered using both classical and quantum mechanical descriptions. A central theme of the book is that the wide variety of free energy calculation techniques available today can be understood as different implementations of a few basic principles. The book is aimed at a broad readership of graduate students and researchers having a background in chemistry, physics, engineering and physical biology.

Thermal Biophysics of Membranes

Thermal Biophysics of Membranes PDF Author: Thomas Heimburg
Publisher: John Wiley & Sons
ISBN: 3527611606
Category : Science
Languages : en
Pages : 378

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Book Description
An overview of recent experimental and theoretical developments in the field of the physics of membranes, including new insights from the past decade. The author uses classical thermal physics and physical chemistry to explain our current understanding of the membrane. He looks at domain and 'raft' formation, and discusses it in the context of thermal fluctuations that express themselves in heat capacity and elastic constants. Further topics are lipid-protein interactions, protein binding, and the effect of sterols and anesthetics. Many seemingly unrelated properties of membranes are shown to be intimately intertwined, leading for instance to a coupling between membrane state, domain formation and vesicular shape. This also applies to non-equilibrium phenomena like the propagation of density pulses during nerve activity. Also included is a discussion of the application of computer simulations on membranes. For both students and researchers of biophysics, biochemistry, physical chemistry, and soft matter physics.

Membrane Dynamics and Domains

Membrane Dynamics and Domains PDF Author: Peter J. Quinn
Publisher: Springer Science & Business Media
ISBN: 9780306484254
Category : Science
Languages : en
Pages : 528

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Book Description
The fluid-mosaic model of membrane structure formulated by Singer and Nicolson in the early 1970s has proven to be a durable concept in terms of the principles governing the organization of the constituent lipids and proteins. During the past 30 or so years a great deal of information has accumulated on the composition of various cell membranes and how this is related to the dif ferent functions that membranes perform. Nevertheless, the task of explaining particular functions at the molecular level has been hampered by lack of struc tural detail at the atomic level. The reason for this is primarily the difficulty of crystallizing membrane proteins which require strategies that differ from those used to crystallize soluble proteins. The unique exception is bacteriorhodopsin of the purple membrane of Halobacterium halobium which is interpolated into a membrane that is neither fluid nor in a mosaic configuration. To date only 50 or so membrane proteins have been characterised to atomic resolution by diffraction methods, in contrast to the vast data accumulated on soluble proteins. Another factor that has been difficult to explain is the reason why the lipid compliment of membranes is often extremely complex. Many hundreds of different molecular species of lipid can be identified in some membranes. Remarkably, the particular composition of each membrane appears to be main tained within relatively narrow limits and its identity distinguished from other morphologically-distinct membranes.

Life - As a Matter of Fat

Life - As a Matter of Fat PDF Author: Ole G. Mouritsen
Publisher: Springer Science & Business Media
ISBN: 3540270760
Category : Science
Languages : en
Pages : 273

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Book Description
Presents a multi-disciplinary perspective on the physics of life and the particular role played by lipids and the lipid-bilayer component of cell membranes. Emphasizes the physical properties of lipid membranes seen as soft and molecularly structured interfaces. By combining and synthesizing insights obtained from a variety of recent studies, an attempt is made to clarify what membrane structure is and how it can be quantitatively described. Shows how biological function mediated by membranes is controlled by lipid membrane structure and organization on length scales ranging from the size of the individual molecule, across molecular assemblies of proteins and lipid domains in the range of nanometers, to the size of whole cells. Applications of lipids in nano-technology and biomedicine are also described.

Advances in Biological Solid-State NMR

Advances in Biological Solid-State NMR PDF Author: Frances Separovic
Publisher: Royal Society of Chemistry
ISBN: 1849739102
Category : Science
Languages : en
Pages : 632

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Book Description
Advances in Biological NMR brings the reader up to date with chapters from international leaders of this growing field, covering the most recent developments in the methodology and applications of solid state NMR to studies of membrane interactions and molecular motions

Advances in Drug Discovery Techniques

Advances in Drug Discovery Techniques PDF Author: Alan L. Harvey
Publisher: CRC Press
ISBN: 9780471975090
Category : Medical
Languages : en
Pages : 232

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Book Description
A guide to techniques for the discovery and evaluation of pharamcologically active compounds for therapeutic development, this book covers rational drug design, high-throughput screening, and genetic approaches to drug discovery. The authors focus on advances in the use of combinatorial chemistry and natural products, both of which support the chemical diversity for many drug screening programmes. They examine typical screening studies and their link to robotics and informatics in detail and present an overview of current progress within anitsense therapeutics. The book explores the rapid changes in drug discovery resulting from developments in molecular biology, robotics, and informatics.