Calcium regulation of phototransduction in vertebrate rod outer segments.
The biochemical events underlying the phototransduction cascade in retinal photoreceptors of vertebrates are now well established, on the basis of a wealth of electrophysiological and biochemical evidence. In this review the Ca2+ regulation of the enzymes that generates the photoreceptor light response is analyzed, as well as the Ca2+ transport across the plasma membrane. Most of the results discussed in the following were collected from electrophysiological experiments.
Rispoli
G
G
INFM, Dipartimento di Biologia dell'Università, Ferrara, Italy. RSG@DNS.UNIFE.IT
D000818:Animals; D002118:Calcium / Q000502:physiology*; D002462:Cell Membrane / Q000502:physiology; D003624:Darkness; D004594:Electrophysiology / Q000379:methods; D006801:Humans; D008027:Light; D008954:Models, Biological; D010786:Photoreceptor Cells / Q000502:physiology*; D012374:Rod Cell Outer Segment / Q000502:physiology* / Q000648:ultrastructure; D014714:Vertebrates; D014785:Vision, Ocular / Q000502:physiology*
D002118:Calcium