| . | Dark Vm, mV . | Light Vm, mV . | Dark Rm, GΩ . | Rmax, pA . | tpeak, ms . |
|---|---|---|---|---|---|
| WT | −31.5a ± 1.1 (10) | −45.4 ± 5.2 (5) | 1.77b ± 0.12 (7) | 17.9 ± 1.6 (15) | 77b ± 8 (6) |
| Kv2.1−/− | −12.1a ± 3.0 (4) | −50.8 ± 4.8 (5) | 2.31b ± 0.24 (4) | 14.6 ± 1.8 (9) | 110b ± 17 (7) |
| . | Dark Vm, mV . | Light Vm, mV . | Dark Rm, GΩ . | Rmax, pA . | tpeak, ms . |
|---|---|---|---|---|---|
| WT | −31.5a ± 1.1 (10) | −45.4 ± 5.2 (5) | 1.77b ± 0.12 (7) | 17.9 ± 1.6 (15) | 77b ± 8 (6) |
| Kv2.1−/− | −12.1a ± 3.0 (4) | −50.8 ± 4.8 (5) | 2.31b ± 0.24 (4) | 14.6 ± 1.8 (9) | 110b ± 17 (7) |
Numerical quantities are the mean ± SEM, with the number of biological replicates in parentheses. Membrane potentials (dark Vm) were corrected for the liquid junction potential of the K gluconate internal solution relative to ground (8.2 ± 0.3 mV, n = 3). Vm was measured immediately upon access as the zero current holding potential, then Rm as the total series resistance to ground, followed by measurement of the amplitude of responses recorded under voltage clamp (Rmax), and current clamp (light Vm) that produced saturated photocurrents. The time to peak (tpeak) was taken as that of the photovoltage response producing a half-saturated amplitude.
P < 0.001.
P < 0.05.