VOLUME 13 (2014) PAGES 1429–1438
The total RSK immunoblot in HUH-6 cells in Fig. 3A as well as the total S6K1 immunoblot in JHH1 cells and p-S6K1 immunoblot in JHH-2 cells in Fig. 3C were inadvertently duplicated. These errors have now been corrected and do not affect the results or conclusions of this work. The authors wish to express their sincere apology to the editors and readers of Molecular & Cellular Proteomics for any confusion or inconvenience.