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

Figure 2

relationship of light-sensitive (cGMP-gated) current recorded from gecko photoreceptor DOS. (a) relationship of cGMP-gated current in a single, representative DOS from the nocturnal geckos Gekko gecko (black squares), Tarentola mauritanica (white circles), and Hemidactylus frenatus (grey triangles). Each curve shows a single trial from a single DOS. Data were fitted with (1) (continuous lines). Average parameters obtained are in Table 1. (b) Numerical simulation according to (1) of the behavior of the cGMP-gated current in amphibian rods (dotted line), in catfish cones (dashed line), and in nocturnal geckos (solid line).

(a)

(b)