Molecular mechanisms of verebrate photoreceptor light adaptation. The human visual system can discriminate increment and decrement light stimuli over a wide range of ambient illumination; from ...
Phototransduction begins when photoexcited rhodopsin (R*) and the G protein transducin (G) diffuse on the disk membrane, collide and then bind (reviewed in ref. 2). In this complex, R* catalyses the ...
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