FIGURE 3:
(A) Live-cell imaging of HEK293/GFP-DFCP1 cell transfected with mRFP-Atg9 using widefield fluorescence microscopy. (A′) Magnified frames from the boxed region. Frames are taken from Supplementary Video S1, which started after 5 min of incubation in starvation medium. Images were captured every 5 s, and every other frame is shown. White arrowhead, mRFP-Atg9 vesicle; empty arrowhead, GFP-DFCP1. Note how the two structures orbit each other without significant overlap except at +110 s, immediately after which they separate. (B) Live-cell imaging of HEK293/GFP-LC3/mRFP-Atg9 cells by widefield fluorescence microscopy. (B′) Magnified boxed regions. Images are extracted from Supplementary Video S2. Frames were taken every 5 s, and every other frame is shown. Note how the two structures orbit each other without significant overlap except at +60 s, immediately after which they separate. White arrowhead, mRFP-Atg9 vesicle.