(D) Control and UBQLN‐KD cells stained with Mitotracker were starved for 6 h; BAF A was added where indicated. Mitotracker fluorescence was measured by flow cytometry. Unless specified otherwise, values for UBQLN‐KD and control+BAF A were compared with that of controls at the same time points, with ***P0.001, **P0.01 and *P0.05 (paired Student's t‐test). 