title: Thallium and cesium in muscle cells compete for the adsorption sites normally occupied by K+.
abstract: It was shown that Tl+ can stoichiometrically displace K+ in frog muscle cells. This displacement is independent of the function of cell membrane and postulated pumps and of a macroscopic electric charge or Donnan effect. It follows that Cs+ and Tl+ compete for the adsorption sites normally occupied by K+. On this basis, the association-induction hypothesis predicts that Cs+ and Tl+, like K+, should be primarily localized in the A-band of the muscle myofibrils.
mesh_terms: D000327:Adsorption; D000818:Animals; D001001:Anura; D001665:Binding Sites; D002586:Cesium / Q000378:metabolism*; D009132:Muscles / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism*; D013793:Thallium / Q000378:metabolism*
chemical_list: D002586:Cesium; D013793:Thallium; D011188:Potassium