Cellular oscillators: rhythmic gene expression and metabolism

Many biological processes are driven by biological clocks that, depending on the frequency they generate, are classified into ultradian, circadian and infradian oscillators. In virtually all light-sensitive organisms from cyanobacteria to humans, a circadian timing system adapts cyclic physiology to...

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Bibliographic Details
Published inCurrent opinion in cell biology Vol. 17; no. 2; pp. 223 - 229
Main Authors Schibler, Ueli, Naef, Felix
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.04.2005
Subjects
Animals
Biological Clocks - physiology
Cell Cycle Proteins - genetics
Cell Cycle Proteins - metabolism
Cell Respiration - physiology
Circadian Rhythm - physiology
Energy Metabolism - physiology
Gene Expression Regulation - physiology
Humans
Saccharomyces cerevisiae
Temperature
Yeasts - genetics
Yeasts - metabolism
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Summary:Many biological processes are driven by biological clocks that, depending on the frequency they generate, are classified into ultradian, circadian and infradian oscillators. In virtually all light-sensitive organisms from cyanobacteria to humans, a circadian timing system adapts cyclic physiology to geophysical time. Recent evidence suggests that even in mammals circadian oscillators function in a cell-autonomous manner. In yeast, an ultradian oscillator regulates cyclic respiratory activity and global gene expression. Circadian oscillators and the ultradian yeast respiratory clock share at least four properties: they follow limit-cycle kinetics, interweave with cellular metabolism, are temperature-compensated and influence the cell division clock.
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ISSN:0955-0674
1879-0410
DOI:10.1016/j.ceb.2005.01.007