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Compartmentalization of the Cell Membrane
Journal of Molecular Biology, 2016Many cell-membrane-associated processes require transient spatiotemporal separation of components on scales ranging from a couple of molecules to micrometers in size. Understanding these processes mechanistically involves understanding how lipids and proteins self-organize and interact with the cell cortex. Here, we review recent advances in dissecting
Arnd Pralle, Alf Honigmann
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The cell membrane and receptors
Anaesthesia & Intensive Care Medicine, 2007Abstract The plasma membrane forms the interface between the cell and its environment. It is composed essentially of a phospholipid matrix and many different types of protein molecules which may be embedded within the matrix (integral proteins) or more loosely associated with the cytoplasmic ‘face’ of the membrane (peripheral proteins).
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Annual Review of Physiology, 1983
"The calcium ion has an unusual importance in biological phenomena, and the literature concerning its effects is extremely voluminous." That this statement, written more than 30 years ago (1), also describes the situation today was certainly expected if not anticipated by L. V.
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"The calcium ion has an unusual importance in biological phenomena, and the literature concerning its effects is extremely voluminous." That this statement, written more than 30 years ago (1), also describes the situation today was certainly expected if not anticipated by L. V.
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The Cell Membrane of Mycoplasmas
Annals of the New York Academy of Sciences, 1967Most mycoplasmologists support the proposal of Gibbons and Murray (1978) endowing the mycoplasmas with the lofty status of one of the four major divisions in the kindgom Procaryotae, the division named Mollicutes (mollis soft + cutes skin) to denote the lack of cell walls in these organisms.
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Cell Membranes and Morphogenesis
Nature, 1956CELL membranes can be readily visualized in the electron microscope; but a rather special cell system is needed if one wishes to study their supposed role1,2 in morphogenesis. In the hair follicle we have been able to examine at high resolution a system which fulfils most of the electron microscopist's demands.
M. S. C. Birbeck, E. H. Mercer
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Microviscosity of the cell membrane
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1972Abstract The microvisocisty in the membrane interior of hemoglobin-free erythrocyte membranes, lymphocytes and submitochondrial particles was derived from an adequate comparison of the degree of fluorescence polarization of perylene when dissolved in the tested membranes and in a reference oil of known viscosity.
Bernardo Rudy, Carlos Gitler
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The American Journal of the Medical Sciences, 1988
Several alterations in membrane transport systems are observed in rat and human hypertension. Na+ flux changes are numerous, and cellular homeostasis to Na+ loading is impaired. Transmembrane Ca2+ movements are also numerous but clearly defined by a reduction in Ca2+ binders, a hypersensitivity of membrane phospholipase C, possible increased Ca2+ leak ...
Philippe Meyer, Pierre Marche
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Several alterations in membrane transport systems are observed in rat and human hypertension. Na+ flux changes are numerous, and cellular homeostasis to Na+ loading is impaired. Transmembrane Ca2+ movements are also numerous but clearly defined by a reduction in Ca2+ binders, a hypersensitivity of membrane phospholipase C, possible increased Ca2+ leak ...
Philippe Meyer, Pierre Marche
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Permeabilization of Cell Membranes
2009In order to detect intracellular antigens, cells must first be permeabilized especially after fixation with cross-linking agents such as formaldehyde and glutaraldehyde. Permeabilization provides access to intracellular or intraorganellar antigens. Two general types of reagents are commonly used: organic solvents, such as methanol and acetone, and ...
Maria Célia Jamur, Constance Oliver
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Physical Review E, 1995
The other equation of the set resembles an equation derived from the Nernst-Planck equation, which describes transmembrane ion transport and hence provides a mechanism for transmembrane potential variation. A more complete calculation of the velocity of the asymptotic wave form shows a lower wave speed than the estimate of Nagumo {ital et} {ital al ...
Pradip Das, W. H. Schwarz
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The other equation of the set resembles an equation derived from the Nernst-Planck equation, which describes transmembrane ion transport and hence provides a mechanism for transmembrane potential variation. A more complete calculation of the velocity of the asymptotic wave form shows a lower wave speed than the estimate of Nagumo {ital et} {ital al ...
Pradip Das, W. H. Schwarz
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Cholesterol and the cell membrane
Biochimica et Biophysica Acta (BBA) - Reviews on Biomembranes, 1985Recent studies concerning cholesterol, its behavior and its roles in cell growth provide important new clues to the role of this fascinating molecule in normal and pathological states.
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