Immunofluoresent analysis of GPR88 in HeLa cells. The cells were fixed with 4% paraformaldehyde in PBS for 15 minutes and blocked with 3% BSA in PBS for 30 minutes at room temperature. Cells were stained with a GPR82 rabbit polyclonal antibody (Product # PA3-044) at a dilution of 1:500 in blocking buffer for 1 hour at room temperature, and then incubated with Goat anti-Rabbit IgG (H+L) Secondary Antibody, Alexa Fluor® 488 conjugate (Product # A-11034) at a dilution of 1:1000 for at least 30 minutes at room temperature in the dark (green). Nuclei (blue) were stained with Hoechst 33342 (Product # 62249). Images were taken on a Thermo Scientific ToxInsight Instrument at 20X magnification.