Figure S2: Subcellular localizations of HOs. GFP-tagged HO-1 was transfected into HEp-2 cells and visualized by confocal microscopy. The cells were fixed and incubated with antibodies against GFP (a, d, g, and j), TfR (b), LAMP2 (e), EEA1 (h), and caveolin (k).