Ion pump sorting in polarized renal epithelial cells.
The plasma membranes of renal epithelial cells are divided into distinct apical and basolateral domains, which contain different inventories of ion transport proteins. Without this polarity vectorial ion and fluid transport would not be possible. Little is known of the signals and mechanisms that renal epithelial cells use to establish and maintain polarized distributions of their ion transport proteins. Analysis of ion pump sorting reveals that multiple complex signals participate in determining and regulating these proteins' subcellular localizations.
Caplan
M J
MJ
Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA. michael.caplan@yale.edu
D000818:Animals; D016764:Cell Polarity / Q000502:physiology*; D004847:Epithelial Cells / Q000378:metabolism*; D006801:Humans; D016623:Ion Pumps / Q000378:metabolism*; D019459:Urothelium / Q000166:cytology* / Q000378:metabolism*
D016623:Ion Pumps