Cell lysates were prepared for immunoblot analysis as previously described (Silva et al., 2014 (link); Silva and McMahon, 2014 (link)). Membranes were probed with the primary antibodies as described in Supplementary Table S3. Antigen-antibody complexes were detected using fluorescent goat anti-Rabbit or anti-Mouse IRDye 800 or goat anti-Mouse IRDye 680 secondary antibodies (LI-COR Biosciences) and visualized using a LI-COR Odyssey Classic infrared imaging system. Immunoblot data was analyzed using the Odyssey application software v3.0.30 software (LI-COR Biosciences) (Silva and McMahon, 2014 (link)).