(d) Effect of knockdown of UVRAG, beclin 1 andRINT-1 on the translocation of Atg9 to the LC3-labelled autophagsomes during autophagy. Control-, UVRAG-, BECN1- or RINT-1-knockdown HeLa cells were incubated in complete medium (normal condition), starvation medium (HBSS, 2 h), or treated with rapamycin (100 nM, 2 h) or SMER28 (50 μM, 2 h). The cells were then stained for endogenous Atg9 (green) and LC3 (red) followed by confocal microscopy analysis (top and bottom left panels). The percentage of Atg9 vesicles co-localized with LC3+-autophagic puncta was quantified (bottom middle panel). Endogenous UVRAG, beclin 1 and RINT-1 protein expression are shown (bottom right). Data represent mean±s.d.; n = 200 cells obtained from three independent experiments. NS, not significant; *P0.05; **P0.01; ***P0.001. Scale bars, 10 μm. 