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IgG density on beads controls the frequency but not rate of phagocytosis. (A) Phagocytic indexes of B0.3, B1, and B10 were measured from six coverslips. Data represent mean ± SEM. The relationship between ligand density and phagocytic index was nonlinear. (B) The rates of phagosome formation were measured as the time from the first movement of cytoplasm to phagosome closure (n = 5).
