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Figure 3 | BMC Cell Biology

Figure 3

From: The use of time-resolved fluorescence imaging in the study of protein kinase C localisation in cells

Figure 3

Fluorescence lifetime imaging of GFP-PKC expressed in CHO cells: effect of TPA. 2P-FLIM images were collected as described in the legend to Figure 2 except cells were treated with TPA (100 nM) for 3 min. Treatment with the phorbol ester did not affect the fluorescence lifetime of GFP attached to PKC. (a) Fluorescence lifetime image with the analysis area enclosed by the red line (nucleus) shown in inset giving an average lifetime of ~2.1 to 2.2 ns. (b) Fluorescence lifetime image with the analysis area enclosed by the red line (cytosol) shown in inset giving an average lifetime of ~2.2 ns. Insets: lifetime distributions with colour coding.

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