(H) LC8 siRNA knockdown reduces the Bim-Beclin 1 interaction. Control siRNA or LC8 siRNA were transfected into HeLa cells. After 48 hr, HA-Bim(EL) EE/vector (IP negative control) or HA-Bim(EL) EE/Beclin 1-Flag was transfected into control siRNA transfected HeLa cells; HA-Bim(EL) EE/Beclin 1-Flag was transfected into LC8 siRNA-transfected HeLa cells. Anti-Flag (M2) was used for immunoprecipitation. Note that in the presence of BimEE, endogenous LC8 was pulled down by Beclin 1 when cells were treated with control siRNA. Data are shown as mean ± SD. ∗∗∗p < 0.001. 