Fig. 5. Colocalization of GRIF1 with Hrs on early endosomes. NGF-differentiated PC12 cells were double immunostained using purified anti-GRIF1 antibody GF2 (green; A-D) and anti-Hrs (red; A), anti-EEA1 (red; B), anti-KDEL (red; C), and anti-ß-tubulin (red; D) antibodies. Bars, 10 µm.