The stimulation of Na+ uptake in frog skin by uranyl ions.

  • W Zeiski
  • Published 1978 in Biochimica et biophysica acta


1. The Na+ uptake in the isolated from skin of Rana esculenta was measured by the short-circuit current (Isc). Uranyl ions increase at pH 5.5 the Isc up to 200% at concentrations of 10 mM. The half-maximal value for this effect is at about 1 mM uranyl salt. 2. The effect is (a) specific for the Na+-selective membrane, (b) fully reversible. No stimulation… (More)


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