A role for the sodium pump in photoreception in Limulus.
The membranes of photoreceptor cells in Limulus have an electrogenic sodium pump which contributes directly to membrane potential and whose activity is changed by light. These light-induced changes in pump activity underlie the receptor potential.
D000251:Adenosine Triphosphatases / Q000378:metabolism; D000818:Animals; D001693:Biological Transport, Active; D003445:Crustacea; D008027:Light; D008564:Membrane Potentials; D010042:Ouabain / Q000494:pharmacology; D011830:Radiation Effects; D011984:Sensory Receptor Cells / Q000502:physiology* / Q000528:radiation effects; D012964:Sodium / Q000502:physiology*
D010042:Ouabain; D012964:Sodium; D000251:Adenosine Triphosphatases