In the version of the article initially published, in Figs. 1–7, “R1A”, “R2A” and “R1B” all appeared as “R1As”, “R2As” and “R1Bs”. Additionally. in Fig. 3o, “IL-1β” originally appeared as “IL1-β”; in Fig. 3s, “R2A” appeared as “Rab2A”; in Fig. 5k, “HA–TM10” originally appeared as “TM10–HA”; in Fig. 7k, “GFP-R2As” appeared as “GFP-Rabs” and in Fig. 7m, “Rab2A” appeared as “R2A”. These corrections have been made to the HTML and PDF versions of the article.