(C) Venus-GlyS was localized predominantly to the Flag-labeled autophagosomes, with weak staining in the rest of the cytoplasm. (D) Venus-GlyS (R593A) was found throughout the cytoplasm and did not colocalize with autophagosomes. (E) Venus-GlyS (S651A) was localized to the autophagosomes. (F) Venus-GlyS (W609A) did not colocalize with the Flag-labeled autophagosomes. 