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Fig. 1. Colocalization of early endocytic vesicles with Rab4 but not with Rab5.
Representative studies are shown in which Texas-RedASOR and
rhodamine-labeled MTs are visualized in panels A and D. Rab4 is
immunolocalized in panel B, while Rab5 is immunolocalized in panel E. Merged
images (C,F) reveal that the majority of MT-bound ligand-containing vesicles
are associated with Rab4 (C). There is little colocalization of MT-bound
ASOR-containing vesicles with Rab5 (F), although Rab5 is associated with many
vesicles that do not contain ASOR.