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Transduction efficiencies in rods and cones†
| Rods | Cones | Reference | |
|---|---|---|---|
| Activation | |||
| Photoresponse (light sensitivity) | 102–3 | 1 | Fig. 1 |
| Pigment activation (per light) | 1 | 1 | Ref. 11 |
| Transducin activation (per R*-sec) | <30 | 1 | Fig. 2 |
| PDE activation | |||
| (per R*) | ∼260 | 1 | Fig. 4 |
| (per T*) | >10 | 1 | Fig. 4 |
| Termination and recovery | |||
| R* phosphorylation (rate constant) | 1 | ∼20 | Fig. 3 |
| PDE half-life (time) | 2∼3 | 1 | Fig. 4 |
Shown as relative values, not in actual units.
