Protamine alters structure and conductance ofNecturus gallbladder tight junctions without major electrical effects on the apical cell membrane

Alavi, N., Lianos, E.A., Palant, C.E., Bentzel, C.J. 1983. Induction of epithelial tight junctions by a light chain protein isolated from a patient with Fanconi's syndrome.Nephron 35:130–135

Bentzel, C.J., Hainau, B., Ho, S., Hui, S.W., Edelman, A., Anagnostopoulos, T., Benedetti, E.L. 1980. Cytoplasmic regulation of tight-junction permeability: Effect of plant cytokinins.Am. J. Physiol. 239:C75-C89

Boulpaep, E.L., Sackin, H. 1980. Electrical analysis of intraepithelial barriers.In: Current Topics in Membrane and Transport. F. Bronner, A. Kleinzeller, and E.L. Boulpaep, editors. pp. 169–197. Academic, New York

Chalcroft, J.P., Bullivant, S. 1970. An interpretation of liver cell membrane and junction structure based on observation of freeze fracture replicas of both sides of the fracture.J. Cell. Biol. 47:49–60

Claude, P. 1978. Morphological factors influencing transepithelial permeability: A model for the resistance of the zonula occludens.J. Membrane Biol. 39:219–232

Duffey, M.E., Hainau, B., Ho, S., Bentzel, C.J. 1981. Regulation of epithelial tight junction permeability by cyclic AMP.Nature (London) 294:451–453

Fromm, M., Palant, C.E., Bentzel, C.J., Hegel, U. 1985. Protamine reversibly decreases paracellular cation permeability inNecturus gallbladder.J. Membrane Biol. 87:141–150

Fromm, M., Weskamp, P., Hegel, U. 1980. Versatile piezoelectric driver for cell puncture.Pfluegers Arch. 384:69–73

Graf, J., Giebisch, G. 1979. Intracellular sodium activity and sodium transport inNecturus gallbladder epithelium.J. Membrane Biol. 47:327–355

Kachar, B., Reese, T.S. 1982. Evidence for the lipidic nature of tight junction strands.Nature (London) 296:464–466

Madara, J.L. 1983. Increases in guinea pig small intestinal transepithelial resistance induced by osmotic loads are accompanied by rapid alterations in absorptive-cell tight junction structure.J. Cell Biol. 97:125–136

Martinez-Palomo, A., Meza, I., Beaty, G., Cereijido, M. 1980. Experimental modulation of occluding junctions in a cultured transporting epithelium.J. Cell. Biol. 87:736–745

Meza, I., Ibarra, G., Sabanero, M., Martinez-Palomo, A., Cereijido, M. 1980. Occluding junctions and cytoskeletal components in a cultured transporting epithelium.J. Cell Biol. 87:746–754

Meza, I., Sabanero, M., Stefani, E., Cereijido, M. 1982. Occluding junctions in MDCK cells: Modulation of transepithelial permeability of transepithelial permeability by the cytoskeleton.J. Cell Biochem. 18:407–421

Moreno, J.H. 1975. Blockage of gallbladder tight junction cation-selective channels by 2,4,6-triaminopyrimidinium (TAP).J. Gen. Physiol. 66:97–115

Muller, J., Kachadorian, W.A., DiScala, V.A. 1980. Evidence that ADH-stimulated intramembrane particle aggregates are transferred from cytoplasmic to luminal membranes in toad bladder epithelial cells.J. Cell Biol. 85:83–95

Nagel, W., Garcia-Diaz, F.J., Essig, A. 1983. Contribution of junctional conductance to the cellular voltage-divider ratio in frog skins.Pfluegers Arch. 399:336–341

Palant, C.E., Duffey, M.E., Mookerjee, B.K., Bentzel, C.J. 1983. Ca2+ regulation of tight-junction permeability and structure inNecturus gallbladder.Am. J. Physiol. 245:C203-C212

Poler, S.M., Reuss, L. 1985. Protamine decreases apical membrane K+ and increases apical membrane Cl− conductance inNecturus gallbladder epithelium.J. Gen. Physiol. 86:42a

Reuss, L., Finn, A.L. 1975. Electrical properties of the cellular transepithelial pathway inNecturus gallbladder: I. Circuit analysis and steady-state effects of mucosal solution ionic substitutions.J. Membrane Biol. 25:115–139

Reuss, L., Grady, T.P. 1979. Triaminopyrimidinium (TAP+) blocks luminal membrane K conductance inNecturus gallbladder epithelium.J. Membrane Biol. 48:285–298

Suzuki, K., Frömter, E. 1977. The potential and resistance profile ofNecturus gallbladder cells.Pfluegers Arch. 371:109–117