Activation of intracellular membrane-anchored small G-proteins by cytosolic MNPs

MNPs functionalized with activated Ras/Rac (or their GEF activators) will be delivered into the cytoplasm of cells transfected with biosensors (Raichu-Ras, Raichu-Rac). Using the spaceMode approach, we will test for asymmetrical activation of downstream cytoskeletal targets using confocal fluorescence microscopy. Nonfunctionalized MNP will serve as negative control.