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. 1976 Sep 21;448(1):185-8.
doi: 10.1016/0005-2736(76)90087-0.

On the amount of (Na+ + K+)-ATPase available for transepithelial sodium ion transport in the amphibian skin

K G Ferreira, H G Ferreira, V L Lew

On the amount of (Na+ + K+)-ATPase available for transepithelial sodium ion transport in the amphibian skin

K G Ferreira et al. Biochim Biophys Acta. .

Abstract

Pretreatment of frog skin epithelium homogenates with sodium dodecyl sulphate in the presence of ATP reveals levels of ouabain-sensitive ATPase activity usually higher and occasionally far higher than those required to sustain maximum rates of Na+ transport. This supports the view that Na+ transport involves only a fraction of the epithelial cells.

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