Fig. 3. ERK2-GFP translocation in response to a transient stimulus. (A) Cells have been stimulated with FGF4 for only 4 minutes. Bar, 10 µm. (B) Comparison of the response to 4 minutes (red trace, n=15) or continuous stimulation (blue trace). The green line is an exponential best fit (
=9.5 minutes, R2=0.99).