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Science 30 March 1984:
Vol. 223. no. 4643, pp. 1428 - 1430
DOI: 10.1126/science.223.4643.1428
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Articles

Circadian Changes in Enzyme Concentration Account for Rhythm of Enzyme Activity in Gonyaulax

CARL HIRSCHIE JOHNSON 1, JAMES F. ROEBER 1, and J. W. HASTINGS 1

1 Biological Laboratories, Harvard University, Cambridge, Massachusetts 02138

A circadian rhythm in the activity of luciferase is partly responsible for rhythmic bioluminescence in the dinoflagellate alga Gonyaulax polyedra. The cyclic activity of this enzyme can be attributed to a corresponding rhythm in the concentration of immunologically reactive luciferase protein. Hence protein turnover (synthesis or degradation or both) is used by the endogenous clock to control the daily rhythm of bioluminescence.

Submitted on November 3, 1983
Accepted on January 23, 1984


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Genetic and Molecular Analysis of Biological Rhythms.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)