The circadian coordination of cell biology.
The circadian coordination of cell biology.
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DOI:
10.1083/jcb.201603076
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发表时间:
2016-10-10
期刊:
影响因子:
--
通讯作者:
Panda S
中科院分区:
文献类型:
--
作者:
Chaix A;Zarrinpar A;Panda S
Chaix et al. review how cells generate circadian oscillations and how circadian clocks control cell biology. Circadian clocks are cell-autonomous timing mechanisms that organize cell functions in a 24-h periodicity. In mammals, the main circadian oscillator consists of transcription–translation feedback loops composed of transcriptional regulators, enzymes, and scaffolds that generate and sustain daily oscillations of their own transcript and protein levels. The clock components and their targets impart rhythmic functions to many gene products through transcriptional, posttranscriptional, translational, and posttranslational mechanisms. This, in turn, temporally coordinates many signaling pathways, metabolic activity, organelles’ structure and functions, as well as the cell cycle and the tissue-specific functions of differentiated cells. When the functions of these circadian oscillators are disrupted by age, environment, or genetic mutation, the temporal coordination of cellular functions is lost, reducing organismal health and fitness.
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