Effect of phosphorylation on the functional properties of the sodium channel reconstituted into an artificial membrane
1992
The phosphorylation by protein kinase A of cytoplasmic protein of bovine brain, reconstituted as liposome membrane, is studied. The reconstituted protein imitates the potential-dependent sodium channel. The effect of phosphorylation is shown to depend on the way in which the protein is reconstructed into the artificial membrane. Phosphorylation of channels reconstructed in the open state inhibits the rate of sodium ion flux, while phosphorylation of channels reconstructed in the closed state enhances the activating effect of veratrine and scorpion toxin.
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