PerspectiveCircadian Rhythms

Integrating Circadian Timekeeping with Cellular Physiology

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Science  16 May 2008:
Vol. 320, Issue 5878, pp. 879-880
DOI: 10.1126/science.1158619

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Models of circadian timekeeping mechanisms in plants, flies, and mammals are expanding to include intracellular small-molecule signals.