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Exocytosis in secretory cells consists of release from intracellular storage granules directly into the extracellular space via fusion of the granule membrane with the plasma membrane of the cell. It is considered here as comprising two distinct processes. One is the close apposition of granule and plasma membranes. The other arises from interactions between the two membranes during the process of...
In the search for a functional role of cytoskeletal proteins in the mechanism(s) of stimulus-secretion coupling, we have previously demonstrated that the actomyosin system might be involved in the transport of cations across the plasma membrane of bovine adrenal chromaffin cells [(1986) J. Biol. Chem. 261, 5745-5750]. To establish whether actin and myosin might also be involved in later stages of...
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