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The effect of propranolol treatment on Golgi association of the ARFGAPs. Cells treated with propranolol (prl; 300 μm for 3 min) were stained with antibodies for ARFGAP1 to -3. ARFGAP1 is highly sensitive to propranolol exposure. ARFGAP2 retains its Golgi localization after propranolol treatment, whereas ARFGAP3 has an intermediate sensitivity. Scale bar, 10 μm.
