(C) Schematic diagram of full-length RDH/CG2064 and TM domain-deleted RDH/CG2064 (∆TM). Lysates of Drosophila S2 cells expressing the different proteins were immunoprecipitated with anti-GFP antibody and detected by anti-GFP or anti-Flag antibody in a western blot. Both full-length and ∆TM RDH/CG2064 were coimmunoprecipitated with Plin2. 