Interactions of N-stearoyl sphingomyelin with cholesterol and dipalmitoylphosphatidylcholine in bilayer membranes
نویسندگان
چکیده
منابع مشابه
Electrical characteristics of sphingomyelin bilayer membranes.
Current-voltage characteristics and the conductivity temperature dependence of sphingomyelin bilayer membranes have been determined. The resistances were of the order of 10(8) Omega-cm(2) and exhibited ohmic behavior up to approximately 25 mv followed by increasing conductivity with applied voltage. The current is found to be proportional to a hyperbolic sine function of the voltage. The temper...
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Mammalian cell membranes are composed of a complex array of glycerophospholipids and sphingolipids that vary in head-group and acyl-chain composition. In a given cell type, membrane phospholipids may amount to more than a thousand molecular species. The complexity of phospholipid and sphingolipid structures is most likely a consequence of their diverse roles in membrane dynamics, protein regula...
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Differential scanning calorimetry (DSC) and x-ray diffraction have been used to study the interaction of hydrated N-palmitoylgalactosylsphingosine (NPGS) and dipalmitoylphosphatidylcholine (DPPC). For mixtures containing less than 23 mol% NPGS, complete miscibility of NPGS into hydrated DPPC bilayers is observed in both the bilayer gel and liquid-crystal phases. X-ray diffraction data demonstra...
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Label-free imaging mass spectrometry is utilized the first time to study lipid-lipid interactions in a model membrane system. Ternary lipid mixtures of cholesterol (CH), sphingomyelin (SM), and phosphatidylcholine (PC) on supported Langmuir-Blodgett films are investigated as a mimic of the cellular membrane. The unique chemical specificity and imaging capability allow identification and localiz...
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We quantified the main phospholipids of erythrocyte membranes and lipid profile from patients with coronary arterial disease (CAD). 202 patients between 22 and 86 years were classified in two groups: a group with CAD greater to or equal to 50% (CAD ≥ 50%) and a second group with CAD between zero and less than 50% (CAD<50%). Total phospholipids was,161.1 ± 12.0 nmol Ptotal/mg protein for patient...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1996
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(96)79791-6