Fig. 5.

(A) A photocurrent trace recorded from AlACR2 upon stimulation with a continuous light pulse, the duration of which is schematically shown as the green bar. (B) A series of photocurrent traces recorded from AlACR2 upon laser flash excitation at the voltages changed from −60 to 60 mV at the amplifier output with the standard pipette solution. (C) A photocurrent trace recorded from AlACR2 at 60 mV using the pipette solution with a reduced Cl⁻ concentration. (Inset) A portion of the trace from 5 to 100 ms vertically stretched to better resolve the channel current decay. Black lines, experimental data; red lines, multiexponential fit, dashed black line, zero current level. (D) The current-voltage dependencies of the peak current and the slowest signal component at the indicated Cl⁻ concentrations in the pipette. The data points are the mean ± SEM values (n = 5 cells).