Research CommentariesCircadian Rhythms

An End in the Beginning

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Science  05 Jun 1998:
Vol. 280, Issue 5369, pp. 1548-1549
DOI: 10.1126/science.280.5369.1548

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All organisms can keep time, with an internal clock that has a period of just about 24 hours. In his commentary, Dunlap outlines recent research ( including a research article and report in this issue by Gekakis and Darlington) that give us a first molecular glimpse of how the protein components of this clock interact.