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Characterization of the sub-transition of hydrated dipalmitoylphosphatidylcholine bilayers. Kinetic, hydration and structural study
Abstract Differential scanning calorimetry and fast-recording X-ray diffraction methods are used to study the kinetics, hydration and structural changes of the L β , gel→L c ‘crystal’ conversion atExpand
Comparative study of the gel phases of ether- and ester-linked phosphatidylcholines.
X-ray diffraction studies indicate that DHPC dispersions form a lamellar gel phase with dav congruent to 46 A both above and below the "subtransition", and it is suggested that the reduced dav observed for DHPC is due to an interdigitated lamellary gel phase which exists at all temperatures below the pretransition at 35 degrees C. Expand
Characterization of the sub-transition of hydrated dipalmitoylphosphatidylcholine bilayers: X-ray diffraction study
Abstract The structural changes accompanying the recently described sub-transition of hydrated dipalmitoylphosphatidylcholine (Chen, S.C., Sturtevant, J.M. and Gaffney, B.J. (1980) Proc. Natl. Acad.Expand
X-ray diffraction and calorimetric study of anhydrous and hydrated N-palmitoylgalactosylsphingosine (cerebroside).
It is suggested that hydrated crystal form E is stabilized by both a highly ordered chain packing mode and a lateral intermolecular hydrogen bonding network involving the sphingosine backbone, the galactosyl group, and interbilayer water molecules. Expand
Hydrocarbon chain packing modes in lipids: effect of altered sub-cell dimensions and chain rotation.
This approach can be used to analyze changes in the X-ray diffraction data due to modifications of the hydrocarbon chain packing modes characteristic of simple and complex lipids. Expand
Anisotropic spin-lattice relaxation in lipid bilayers: A solid state 2H NMR lineshape study
Abstract In the absence of rapid lateral diffusion, the orientation dependence of 2 H nuclear magnetic spin-lattice relaxation ( T 1 or T 1Q ) in lipid bilayers becomes observable. Simulation of theExpand
Galactocerebroside-phospholipid interactions in bilayer membranes.
Differential scanning calorimetry and x-ray diffraction have been used to study the interaction of hydrated N-palmitoylgalactosylsphingosine (NPGS) and dipalMIToylphosphatidylcholine (DPPC), finding complete miscibility of NPGS into hydrated DPPC bilayers is observed in both the bilayer gel and liquid-crystal phases. Expand
Interaction of cholesterol with galactocerebroside and galactocerebroside-phosphatidylcholine bilayer membranes.
The interaction of the galactocerebroside, N-palmitoylgalactosylsphingosine, with cholesterol has been studied by differential scanning calorimetry (DSC) and x-ray diffraction and the unique thermal and structural behavior of NPGS-cholesterol dispersions is contrasted with the behavior of cholesterol-phosphatidycholine and cholesterol-sphingomyelin bilayers. Expand
Thermal and structural behavior of natural cerebroside 3-sulfate in bilayer membranes.
Differential scanning calorimetry, polarizing microscopy and X-ray diffraction studies have been performed on dry and hydrated natural bovine brain sulfatides, finding the existence of a bilayer structure over the 16.% to 50 wt.% phosphate buffer range to be confirmed. Expand
Deuterium NMR investigation of ether- and ester-linked phosphatidylcholine bilayers.
Results indicate the ether linkage has no effect on the dynamics or the orientational order at the alpha-C2H2 segment of the phosphocholine head group, and suggests an assignment of the two smaller and the two larger quadrupolar splittings to separate alkyl chains, respectively. Expand