Membrane-associated actin filaments in the cortical cytoplasm of the rat mast cell |
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| Authors: | P Rhlich |
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| Institution: | Laboratory I of Electron Microscopy and 2nd Department of Anatomy, Histology and Embryology, Semmelweis University of Medicine, 1094 Budapest, Hungary |
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| Abstract: | Cytoplasmic microfilaments are regular constituents of the cortical cytoplasm of rat mast cells. Heavy meromyosin binding to the microfilaments in glycerinated mast cells indicates that they represent actin filaments. Many of the actin filaments were found to be attached to spots of increased density of the plasma membrane. The actin filaments, possibly as part of an actomyosin system, may be involved in exocytosis of mast cell granules. |
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