Table 1. Comparison of channelrhodopsin gating properties.
EPD50 is the effective power density for 50% activation. CheRiff data are from Fig. S9 and Table S4 of Hochbaum et al., 2014. CheRiff reversal potential is from Zhang et al., 2016.
| Reversal potential (mV) | ton fastest (ms) | ton at EPD50 (ms) | toff (ms) | EPD50 (mW cm−2) | Steady-state photocurrent (pA) | Ipeak/ISS | |
|---|---|---|---|---|---|---|---|
| CheRiff | 4 | 4.5 ± 0.3 | - | 16 ± 0.8 | 22 ± 4 | 1300 ± 80 | 0.65 |
| ChR2-3M (n = 4) | 16.6 ± 3.6 | 57 ± 21 | 800 ± 550 | 1950 ± 500 | 11.6 ± 8.7 | 1378 ± 618 | 1.00 |
| PsCatCh2.0 (n = 6) | 12.3 ± 4.7 | 4.2 ± 3.5 | 9.3 ± 1.2 | 17.6 ± 3.4 | 116 ±1 3 | 847 ± 359 | 0.92 |