Insulin-containing secretory granules are bound to Myosin Va via Rab27a in a complex of uncertain composition. Myosin Va motors along the cortical actin network (actin at the periphery of the cytoplasm), carrying the granules to the inner surface of the plasma membrane (inferred from mouse MIN6 cells).
microfilament motor activity of MYO5A:MYRIP:RAB27A [cytosol]
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