Fig. 2.
β-arrestin (β-arr1/2) interacts with members of the IKK complex. HeLa cells were transfected with the indicated plasmids. After transfection (48 h), cells were lysed and immunoprecipitated (IP) by using anti-FLAG M2 beads. Western blot analysis was performed by using anti-β-arrestin antibody. Data shown are representative of four independent experiments.