Sed on iceTalin ControlsM-mediated PhagocytosisFigure 3. M 2 integrins and talin interact biochemically in phagocytes. Lysates of surface-biotinylated J774.A1 mouse macrophages (A) or COS-7 cells expressing either GFP or GFPTH (B) were incubated with equal amounts of beads coated with or without an anti- M mAb (5c6). Pellet-associated proteins were separated by SDS-PAGE and analyzed by Western blo