- apical plasma membrane
The term used for the cell membrane on the apical (inner or upper) surface of transporting epithelial cells. This region of the cell membrane is separated, in vertebrates, from the baso-lateral membrane by a ring of tight junctions that prevents free mixing of membrane proteins from these two domains.
Dictionary of molecular biology. 2004.
Look at other dictionaries:
basolateral plasma membrane — The plasma membrane of epithelial cells that is adjacent to the basal lamina or the adjoining cells of the sheet. Differs both in protein and phospholipid composition from the apical plasma membrane from which it is isolated by tight junctions … Dictionary of molecular biology
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