mTOR Signaling, Translational Control, and the Circadian Clock
نویسندگان
چکیده
منابع مشابه
Translational Control of Entrainment and Synchrony of the Suprachiasmatic Circadian Clock by mTOR/4E-BP1 Signaling
Protein synthesis is critical for circadian clock function, but little is known of how translational regulation controls the master pacemaker in mammals, the suprachiasmatic nucleus (SCN). Here we demonstrate that the pivotal translational repressor, the eukaryotic translational initiation factor 4E binding protein 1 (4E-BP1), is rhythmically regulated via the mechanistic target of rapamycin (m...
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Mammalian circadian rhythms are synchronized to the external time by daily resetting of the suprachiasmatic nucleus (SCN) in response to light. As the master circadian pacemaker, the SCN coordinates the timing of diverse cellular oscillators in multiple tissues. Aberrant regulation of clock timing is linked to numerous human conditions, including cancer, cardiovascular disease, obesity, various...
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The eukaryotic circadian clocks are composed of autoregulatory circadian negative feedback loops that include both positive and negative elements. Investigations of the Neurospora circadian clock system have elucidated many of the basic mechanisms that underlie circadian rhythms, including negative feedback and light and temperature entrainment common to all eukaryotic clocks. The conservation ...
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Two forms of FRQ, a central component of the Neurospora circadian clock, arise through alternative in-frame initiation of translation. Either form alone suffices for a functional clock at some temperatures, but both are always necessary for robust rhythmicity. Temperature regulates the ratio of FRQ forms by favoring different initiation codons at different temperatures; when either initiation c...
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ژورنال
عنوان ژورنال: Frontiers in Genetics
سال: 2018
ISSN: 1664-8021
DOI: 10.3389/fgene.2018.00367