Membrane-Associated Particles: Increase at Sites of Pinocytosis Demonstrated by Freeze-Etching

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Science  31 Aug 1973:
Vol. 181, Issue 4102, pp. 868-869
DOI: 10.1126/science.181.4102.868


An increased number of membrane-associated particles has been demonstrated by freeze-etching in areas of pinocytosis in the intestinal smooth muscle cell. A peculiar distribution of the particles is described, which might be closely related to the formation of pinocytotic vesicles (caveolae).