Skip to main content
. 1999 Jul;127(5):1213–1223. doi: 10.1038/sj.bjp.0702642

Figure 5.

Figure 5

Effect of 0.1 μM E-4031 on the fast and slow component of the deactivation current. (A) Original currents at −45 mV in control and in 0.1 μM E-4031 applied for 4 min. Holding potential −20 mV, cell diameter 64 μm, temperature 33°C. Double exponential fits with eq (1) superimposed, starting 16 ms after beginning of pulse. Fit parameters:
graphic file with name 127-0702642e6.jpg
(B) Inhibition of K1 (=initial amplitude of slow component) and K3 (=initial amplitude of fast component) at −55 mV plotted against concentration of E-4031; n=3–5 per point. Values for K1 fitted with dose-response curve. Parameters: Maximum inhibition=82.5%, IC50=38.1 nM, Hill coefficient=1.70.