title: Intracellular potassium in cells of the proximal tubule of Necturns maculosus.
mesh_terms: D000818:Animals; D001693:Biological Transport, Active; D004848:Epithelium / Q000378:metabolism; D007474:Ion Exchange; D007684:Kidney Tubules / Q000502:physiology*; D007687:Kidney Tubules, Proximal / Q000378:metabolism / Q000502:physiology; D008564:Membrane Potentials; D008839:Microelectrodes; D010783:Photometry; D011188:Potassium / Q000378:metabolism / Q000502:physiology*; D011199:Potentiometry; D014562:Caudata / Q000502:physiology*
chemical_list: D011188:Potassium