In the version of this article initially published, in Fig. 1a, a box label with the text “RAB5, Vps34” appeared on a bottom-left arrow leading from “Sorting endosome” to “Late endosome,” and has now been moved into the center box label at “Sorting endosome”. In the lower-left part of Fig. 3a, the text now reading “Motor protein” replaces “Kinesin motor protein,” while in the Fig. 3a caption now reading “These RAB proteins then drive the motor protein-dependent transport of GSVs along microtubules to the plasma membrane,” “motor protein-dependent” replaces “kinesin-dependent”. The changes have been made to the HTML and PDF versions of the article.