Red Cell Membrane Structure and Ion Transport

The red cell in man is a biconcave disk, some 8.4/z in diameter, 2.4 # thick at its widest portion, and 1/z thick at its narrowest. I t is bounded by a membrane primarily composed of protein and lipid, the latter sufficient in amount to cover the red cell with a layer two molecules thick. The lipid layer is bounded on the outside, and possibly on the inside, by a layer of protein. The thickness...

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Cation Transport and Structure of the Red-Cell Plasma Membrane

This paper recounts recent uwork concerning the Na aiid K permeability of red blood cells. The discussion deals principally with results derived from isolated red-cell membranes, or ghosts. Using defined isolation techniques, a system of ghosts is described in which Na is actively pumped. Like intact cells, the pump requires extracellular K and energy derived from the metabolism. The source of ...

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Cation Transport and Structure of the Red-Cell Plasma Membrane

This paper recounts recent uwork concerning the Na aiid K permeability of red blood cells. The discussion deals principally with results derived from isolated red-cell membranes, or ghosts. Using defined isolation techniques, a system of ghosts is described in which Na is actively pumped. Like intact cells, the pump requires extracellular K and energy derived from the metabolism. The source of ...

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Cation transport and structure of the red-cell plasma membrane.

This paper recounts recent uwork concerning the Na aiid K permeability of red blood cells. The discussion deals principally with results derived from isolated red-cell membranes, or ghosts. Using defined isolation techniques, a system of ghosts is described in which Na is actively pumped. Like intact cells, the pump requires extracellular K and energy derived from the metabolism. The source of ...

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Ion transport through cell membrane channels

We discuss various models of ion transport through cell membrane channels. Recent experimental data shows that sizes of ion channels are compared to those of ions and that only few ions may be simultaneously in any single channel. Theoretical description of ion transport in such channels should therefore take into account interactions between ions and between ions and channel proteins. This is ...

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Red Cell Membrane Structure and Ion Transport

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