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  • Title: Calcium ion, a putative intracellular messenger for light-adaptation in Limulus ventral photoreceptors.
    Author: Brown JE.
    Journal: Biophys Struct Mech; 1977 Jun 29; 3(2):141-3. PubMed ID: 407954.
    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.
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