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. 1991 Jan 9;1061(1):85-8.
doi: 10.1016/0005-2736(91)90271-9.

Low potassium-type but not high potassium-type sheep red blood cells show passive K+ transport induced by low ionic strength

A Erdmann  1 , I Bernhardt, S J Pittman, J C Ellory
Affiliations

Low potassium-type but not high potassium-type sheep red blood cells show passive K+ transport induced by low ionic strength

A Erdmann et al. Biochim Biophys Acta. .

Abstract

Low potassium-type (LK) sheep red blood cells show a significant increase of the residual (i.e., ouabain-insensitive) K+ influx when the ionic strength of the solution is decreased. This effect is absent from high potassium-type (HK) sheep red blood cells. The KCl cotransport system is not involved since three different manoeuvres to suppress the KCl cotransport (replacement of Cl- by NO3-, volume-decrease, inhibition by anti-L1 antibodies) have no effect on the low ionic strength-stimulated K+ influx.

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