(B) Western blotting of WT MEFs, Drp1-KO MEFs, and Drp1-KO MEFs carrying Drp1, all of which express L2-HA, using the indicated antibodies. The expression of L2-HA was induced for 16 h (0.1 µg/ml doxycycline). The asterisk indicates non-specific bands of anti-Oma1 antibodies. 