Fig. 4. Superimposed immunofluorescence images of cultured wild-type astrocytes stained with anti-synemin (red) and anti-GFAP (green); in yellow or orange are areas where synemin and GFAP colocalize. Note that these cells also contain vimentin. A and B show that synemin colocalizes with IF in perinuclear (A), intermediate and peripheral cellular regions (B). In the latter, color variations occurring within individual fibers indicate variable ratio of vimentin and synemin. Bars, 5 µm (A); 0.5 µm (B).