Measurements of cytosolic free calcium in melanotrophs of Xenopus laevis. Indications that cAMP-dependent protein phosphorylation maintains the spontaneous activity of calcium channels responsible for cytosolic calcium pulsing but does not mediate the channel-closing effects of dopamine and other secretoinhibitory neurotransmitters.
Shibuya
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Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut 06510-8066.
Douglas
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WW
D015056:1-Methyl-3-isobutylxanthine / Q000494:pharmacology; D000818:Animals; D002118:Calcium / Q000378:metabolism*; D000242:Cyclic AMP / Q000378:metabolism; D003600:Cytosol / Q000378:metabolism; D004298:Dopamine / Q000494:pharmacology*; D007700:Kinetics; D009074:Melanocyte-Stimulating Hormones / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000494:pharmacology*; D010766:Phosphorylation; D010902:Pituitary Gland / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D011494:Protein Kinases / Q000378:metabolism*; D013997:Time Factors; D014982:Xenopus laevis
D018377:Neurotransmitter Agents; D009074:Melanocyte-Stimulating Hormones; D000242:Cyclic AMP; D011494:Protein Kinases; D002118:Calcium; D015056:1-Methyl-3-isobutylxanthine; D004298:Dopamine