Localization of cross-linking proteins in fibroblast cytoskeleton. Immuno-EM of the cell interior at cell edge (CIL 34926) of cytochalasin D-treated human 356 fibroblasts stained with ABP-280 primary antibody and 10-nm gold-conjugated secondary antibody. Gold particles (yellow) reveal ABP-280 at filament crossovers in the cell interior. A fluorescence image of fibroblast lamellipodia double stained with TRITC-phalloidin (red) and ABP-280 (green) can be found at (CIL 34923). Image corresponds to Figure 5h from J Cell Biol. 1999 May 31;145(5):1009-26.
Procedures for detergent extraction, immunostaining, S1 decoration, light, and EM were described previously (Svitkina et al., 1995, 1996, 1997;Verkhovsky et al., 1995; Svitkina and Borisy, 1998).
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