Fig. 7. Erlin-1 and -2 localize to the ER. HeLa cells were transfected with full-length erlin-1-GFP or erlin-2-GFP as indicated. Cells were counterstained using antibodies to the ER marker proteins (A) calnexin or (B) calreticulin (red) as indicated and visualized using wide-field microscopy. Bars, 10 µm.