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The Hydrophobic Effect: Formation of Micelles and Biological Membranes

01 Aug 1991-
TL;DR: In this article, the authors discuss the properties of water molecules and their relationship with common soluble proteins, such as membrane proteins and membrane membrane proteins, as well as the effect of temperature on their properties.
Abstract: The Solubility of Hydrocarbons in Water. Solubility of Amphiphiles in Water and Organic Solvents. The Effect of Temperature: Anomalous Entropy and Heat Capacity. The Structure of Water. Micelles: Introduction. Thermodynamics of Micelle Formation. Micelle Size and Shape. Mixed Micelles. Monolayers. Biological Lipids. Motility and Order. Proteins: Hydrophobic Side Chains and Conformational Change. The Association of Hydrocarbons and Amphiphiles with Common Soluble Proteins. Serum Lipoproteins. Biological Membranes. Membrane Proteins. Author and Subject Indices.
Citations
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TL;DR: In this article, the association properties of poly(ethylene oxide)-block-poly(propyleneoxide)-blockpoly(methylene oxide) (PEO) copolymers in aqueous solutions, and the adsorption at interfaces are reviewed.

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TL;DR: A coherent thermodynamic formalism for determining and describing the energetics of peptide-bilayer interactions and a review of the properties of the environment of membrane proteins--the bilayer milieu are reviewed.
Abstract: ▪ Abstract Stably folded membrane proteins reside in a free energy minimum determined by the interactions of the peptide chains with each other, the lipid bilayer hydrocarbon core, the bilayer interface, and with water. The prediction of three-dimensional structure from sequence requires a detailed understanding of these interactions. Progress toward this objective is summarized in this review by means of a thermodynamic framework for describing membrane protein folding and stability. The framework includes a coherent thermodynamic formalism for determining and describing the energetics of peptide-bilayer interactions and a review of the properties of the environment of membrane proteins—the bilayer milieu. Using a four-step thermodynamic cycle as a guide, advances in three main aspects of membrane protein folding energetics are discussed: protein binding and folding in bilayer interfaces, transmembrane helix insertion, and helix-helix interactions. The concepts of membrane protein stability that emerge p...

1,703 citations

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TL;DR: In this paper, the authors developed a unified and generally applicable theory of solvation of small and large apolar species in water, where hydrogen bonding of water is hindered yet persists near the solutes, leading to drying of extended apolar surfaces, large forces of attraction and hysteresis on mesoscopic length scales.
Abstract: We develop a unified and generally applicable theory of solvation of small and large apolar species in water. In the former, hydrogen bonding of water is hindered yet persists near the solutes. In the latter, hydrogen bonding is depleted, leading to drying of extended apolar surfaces, large forces of attraction, and hysteresis on mesoscopic length scales. The crossover occurs on nanometer length scales, when the local concentration of apolar units is sufficiently high, or when an apolar surface is sufficiently large. Our theory for the crossover has implications concerning the stability of protein assemblies and protein folding.

1,535 citations

Journal ArticleDOI
TL;DR: It is found that solvent properties of water within the interphase separating a solid surface from bulk water solution vary with contacting surface chemistry, and this interphase can extend tens of nanometers from a water-contacting surface due to a propagation of differences in self association between vicinal water and bulk-phase water.

1,396 citations