Drosophila GPCR Han Is a Receptor for the Circadian Clock Neuropeptide PDF
The pigment-dispersing factor (PDF) is a neuropeptide controlling circadian behavioral rhythms in Drosophila, but its receptor is not yet known. From a large-scale temperature preference behavior screen in Drosophila, we isolated a P insertion mutant that preferred different temperatures during the...
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Veröffentlicht in: | Neuron (Cambridge, Mass.) Mass.), 2005-10, Vol.48 (2), p.267-278 |
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Sprache: | eng |
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Zusammenfassung: | The pigment-dispersing factor (PDF) is a neuropeptide controlling circadian behavioral rhythms in
Drosophila, but its receptor is not yet known. From a large-scale temperature preference behavior screen in
Drosophila, we isolated a P insertion mutant that preferred different temperatures during the day and night. This mutation, which we named
han, reduced the transcript level of
CG13758. We found that Han was expressed specifically in 13 pairs of circadian clock neurons in the adult brain.
han null flies showed arrhythmic circadian behavior in constant darkness. The behavioral characteristics of
han null mutants were similar to those of
pdf null mutants. We also found that PDF binds specifically to S2 cells expressing Han, which results in the elevation of cAMP synthesis. Therefore, we herein propose that Han is a PDF receptor regulating circadian behavioral rhythm through coordination of activities of clock neurons. |
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ISSN: | 0896-6273 1097-4199 |
DOI: | 10.1016/j.neuron.2005.08.025 |