Fig. 4

The C9orf72/SMCR8/WDR41 complex interacts with FIP200/Ulk1. a Co-immunoprecipitation between C9orf72/SMCR8/WDR41 and FIP200 and Ulk1. HEK293T cells were transfected with FLAG-FIP200 and C9orf72, SMCR8 and/or WDR41 as indicated. Cells were lysed 40 h after transfection and lysates were immunoprecipated with anti-GFP antibodies. Lysates and immunoprecipitates were analyzed by Western blots as indicated. * indicated non-specific bands recognized by anti SMCR8 antibodies in the IP products. Representative images from 3 independent experiments are shown. b Co-immunoprecipitation between C9orf72/SMCR8/WDR41 and FIP200. HEK293T cells were transfected as indicated and lysed and immunoprecipitated using anti-FLAG antibodies. Lysates and immunoprecipitates were analyzed by Western blots. c, d Co-immunoprecipitation between C9orf72/SMCR8/WDR41 and ATG101 (c) or ATG13 (d). HEK293T cells were transfected as indicated and lysed and immunoprecipitated using anti-GFP antibodies. Lysates and immunoprecipitates were analyzed by Western blots. e Schematic drawing of the interaction between C9orf72/SMCR8/WDR41 and the FIP200/Ulk1 complex. WDR41 interacts with the C9orf72/SMCR8 dimer to form ternary complex, which then interacts with the FIP200/Ulk1/ATG13/ATG101 complex