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Cytoimmunofluorescence on heatshocked HeLa cells. HeLa cells incubated at 42°C for one hour, denatured in 3.5% paraformaldehyde and 0.15% NP40 reacted with human anti-p68 antibodies. Detection using FITC conjugated secondary antibodies. 1 µm in nature equals 3 cm on the picture.
