Cone-Like Rectification Properties of cGMP-Gated Channels in Transmutated Retinal Photoreceptors of Nocturnal Geckoes

Figure 1

cGMP-gated current amplitude during voltage step protocol. Typical whole cell voltage clamp recording of a gecko photoreceptor detached outer segment (Tarentola mauritanica) performed in the dark. Upon exposure to bright light, most current disappeared and only a negligible amount of leakage current remained. Arrow indicates the time (50 ms after voltage change) when current amplitude was measured to obtain the plot, before any time-dependent change of cGMP-gated current occurred. Further details in text.