(g) Endogenous ULK1 is immunoprecipitated from HeLa cells transfected with β-galactosidase or AMBRA1 plasmid respectively using an anti-ULK1 antibody. As a control, rabbit IgG was used. The resulting precipitates were subjected to ULK1kinase assay using MBP as the substrate. Purified complexes were analysed by autoradiography and by western blotting using an anti-ULK1 antibody. Total extracts were analysed using an anti-AMBRA1 antibody. 