Figure 6.

Localization of injected bNTF2-streptavidin complexes. bNTF2 (A) or biotinylated BSA (B) was preincubated with FITC-streptavidin and coinjected with TRITC-dextran as an injection marker into the cytoplasm or nucleus of BHK21 cells. Cells were incubated at 37°C for 1 h after injection and fixed, and fluorescent proteins were visualized directly.