Role of the CLOCK protein in the mammalian circadian mechanism

Nicholas Gekakis, David Staknis, Hubert B. Nguyen, Fred C. Davis, Lisa D Wilsbacher, David P. King, Joseph S. Takahashi, Charles J. Weitz*

*Corresponding author for this work

Research output: Contribution to journalArticle

1301 Citations (Scopus)

Abstract

The mouse Clock gene encodes a bHLH-PAS protein that regulates circadian rhythms and is related to transcription factors that act as heterodimers. Potential partners of CLOCK were isolated in a two-hybrid screen, and one, BMAL1, was coexpressed with CLOCK and PER1 at known circadian clock sites in brain and retina. CLOCK-BMAL1 heterodimers activated transcription from E- box elements, a type of transcription factor-binding site, found adjacent to the mouse per1 gene and from an identical E-box known to be important for per gene expression in Drosophila. Mutant CLOCK from the dominant-negative Clock allele and BMAL1 formed heterodimers that bound DNA but failed to activate transcription. Thus, CLOCK-BMAL1 heterodimers appear to drive the positive component of per transcriptional oscillations, which are thought to underlie circadian rhythmicity.

Original languageEnglish (US)
Pages (from-to)1564-1569
Number of pages6
JournalScience
Volume280
Issue number5369
DOIs
StatePublished - Jun 5 1998

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CLOCK Proteins
Transcription Factors
E-Box Elements
Basic Helix-Loop-Helix Transcription Factors
Circadian Clocks
Periodicity
Circadian Rhythm
Genes
Drosophila
Retina
Alleles
Binding Sites
Gene Expression
DNA
Brain

ASJC Scopus subject areas

  • General

Cite this

Gekakis, N., Staknis, D., Nguyen, H. B., Davis, F. C., Wilsbacher, L. D., King, D. P., ... Weitz, C. J. (1998). Role of the CLOCK protein in the mammalian circadian mechanism. Science, 280(5369), 1564-1569. https://doi.org/10.1126/science.280.5369.1564
Gekakis, Nicholas ; Staknis, David ; Nguyen, Hubert B. ; Davis, Fred C. ; Wilsbacher, Lisa D ; King, David P. ; Takahashi, Joseph S. ; Weitz, Charles J. / Role of the CLOCK protein in the mammalian circadian mechanism. In: Science. 1998 ; Vol. 280, No. 5369. pp. 1564-1569.
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Gekakis, N, Staknis, D, Nguyen, HB, Davis, FC, Wilsbacher, LD, King, DP, Takahashi, JS & Weitz, CJ 1998, 'Role of the CLOCK protein in the mammalian circadian mechanism', Science, vol. 280, no. 5369, pp. 1564-1569. https://doi.org/10.1126/science.280.5369.1564

Role of the CLOCK protein in the mammalian circadian mechanism. / Gekakis, Nicholas; Staknis, David; Nguyen, Hubert B.; Davis, Fred C.; Wilsbacher, Lisa D; King, David P.; Takahashi, Joseph S.; Weitz, Charles J.

In: Science, Vol. 280, No. 5369, 05.06.1998, p. 1564-1569.

Research output: Contribution to journalArticle

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Gekakis N, Staknis D, Nguyen HB, Davis FC, Wilsbacher LD, King DP et al. Role of the CLOCK protein in the mammalian circadian mechanism. Science. 1998 Jun 5;280(5369):1564-1569. https://doi.org/10.1126/science.280.5369.1564