Fig. 4. The EGL-19 L-type calcium channel conducts the HVA current in the pharynx. (A) Total currents in cca-1 and cca-1; egl-19. 100 ms depolarizing pulses were applied in 10 mV increments from the holding potential of -80 mV (same protocol as in Fig. 2A). (B) HVA currents in wild type and egl-19. The LVA current was inactivated with a 300 ms prepulse to -40 mV (same protocol as in Fig. 2B). (C) Current-voltage dependencies of HVA currents in WT and egl-19 (peak amplitudes; prepulse protocol). (D) Activation time constants of HVA currents in WT and egl-19; ^*significantly different by t-test, P<0.01.