Calcium ion,a putative intracellular messenger for light-adaptation in Limulus ventral photoreceptors |
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| Authors: | Brown J. E. |
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| Affiliation: | (1) Department of Physiology and Biophysics, Suny, 11794 Stony Brook, NY, USA;(2) Marine Biological Laboratory, 02543 Woods Hole, MA, USA |
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| Abstract: | Calcium ion fulfills several criteria for identifying an intracellular messenger for light-adaptation in Limulus photoreceptors. Direct injection of Ca++ mimicks two aspects of light-adaptation; sequestration of intracellular calcium tends to prevent light-adaptation; and light induces an increase in intracellular Ca++ as demonstrated by two independent techniques.Presented at the EMBO-Workshop on Transduction Mechanism of Photoreceptors, Jülich, Germany, October 4–8, 1976 |
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| Keywords: | Calcium Limulus Photoreceptors Adaptation |
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