In mammals, the central circadian pacemaker resides in the hypothalamic suprachiasmatic nucleus (SCN), but circadian oscillators also exist in peripheral tissues. Here, using wild-type and cryptochrome (mCry)-deficient cell lines derived from mCry mutant mice, we show that the peripheral oscillator in cultured fibroblasts is identical to the oscillator in the SCN in (i) temporal expression profiles of all known clock genes, (ii) the phase of the various mRNA rhythms (i.e., antiphase oscillation of Bmal1 and mPer genes), (iii) the delay between maximum mRNA levels and appearance of nuclear mPER1 and mPER2 protein, (iv) the inability to produce oscillations in the absence of functional mCry genes, and (v) the control of period length by mCRY proteins.
Molecular mechanisms of the biological clock in cultured fibroblasts. Publishing Authors By Initials
Molecular mechanisms of the biological clock in cultured fibroblasts. Journal Published:
PUBLICATION TYPE: Research Support, Non-U.S. Gov
Journal: Science (New York, N.Y.)
VOLUME: 292
Page Numbers: 278-81
Journal Abbreviation: Science
ISSN: 0036-8075
DAY: 13
MONTH: Apr
YEAR: 2001
Molecular mechanisms of the biological clock in cultured fibroblasts. Information
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LANGUAGE: eng
NlmUniqueID: 404511
Molecular mechanisms of the biological clock in cultured fibroblasts. Keywords Mesh Terms:
KEYWORDS: Transcription Factors
MESH TERMS: metabolism
Chemical & Substance for Abstract: Molecular mechanisms of the biological clock in cultured fibroblasts. Information
Substance Name: cryptochrome protein, Drosophila
Registry Number: 0
Grant and Affiliation Information for Molecular mechanisms of the biological clock in cultured fibroblasts.
AFFILIATION: Division of Molecular Brain Science, Department of Brain Sciences, Kobe University Graduate School of Medicine, Chuo-ku, Kobe 650-0017, Japan.
Country: United States
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MEDLINETA: Science
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