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Science 19 February 1988:
Vol. 239. no. 4842, pp. 916 - 919
DOI: 10.1126/science.3124270
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Articles

Science, Vol 239, Issue 4842, 916-919
Copyright © 1988 by American Association for the Advancement of Science

articles

Juvenile hormone action mediated in male accessory glands of Drosophila by calcium and kinase C

K Yamamoto, A Chadarevian, and M Pellegrini

Molecular Biology Section, University of Southern California, Los Angeles 90089.

In an in vitro system for the Drosophila melanogaster male accessory gland, it was found that 10(-9)M juvenile hormone III could accurately mimic the copulation-induced response of increased protein synthesis in glands from virgin flies. Stimulation by this hormone required calcium in the medium. Experiments with tumor-promoting phorbol esters indicated that activation of protein kinase C can also cause the glands to increase protein synthesis. Stimulation of protein synthesis by juvenile hormone did not occur in mutants deficient in kinase C activity. These results suggest a membrane-protein-mediated effect of juvenile hormone that involves calcium and kinase C.


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