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Science 4 July 1969:
Vol. 165. no. 3888, pp. 79 - 81
DOI: 10.1126/science.165.3888.79
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Articles

Ion Exchange in Escherichia coli: Potassium-Binding Proteins

Raymond Damadian 1

1 Biophysical Laboratory, Department of Medicine, State University of New York, Brooklyn 11203

The potassium binding that occurs during passive accumulation by intact Escherichia coli has been demonstrated in a cell-free system. The data suggest that this binding is due largely to binding by the cell proteins in general and cannot be accounted for by the binding of a particular protein. The results are in accord with the view that the ion-exchange properties of protoplasmic poly-electrolyte determine the overall ionic composition of the cell.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)