Cation permeation mechanisms and cation selectivity in "tight junctions" of gallbladder epithelium.

Ammonia/metabolism Animals Anura Binding Sites Biological Transport, Active Cations, Monovalent Electric Conductivity Epithelial Cells Epithelium/metabolism,ultrastructure Freeze Fracturing Gallbladder/anatomy & histology,metabolism Humans Hydrogen-Ion Concentration Mathematics Microelectrodes Microscopy, Electron Models, Biological Molecular Conformation Permeability Rabbits Rana catesbeiana Thallium Urodela

Cations, Monovalent Ammonia Thallium