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- W4221009737 abstract "Abstract Ubiquitin ligases control the degradation of core clock proteins to govern the speed and resetting properties of the circadian pacemaker. However, few studies have addressed their potential to regulate other cellular events within clock neurons beyond clock protein turnover. Here, we report that the ubiquitin ligase, UBR4/POE, strengthens the central pacemaker by facilitating neuropeptide trafficking in clock neurons and promoting network synchrony. Ubr4 -deficient mice are resistant to jetlag, whereas poe knockdown flies are prone to arrhythmicity, behaviors reflective of the reduced axonal trafficking of circadian neuropeptides. At the cellular level, Ubr4 ablation impairs the export of secreted proteins from the Golgi apparatus by reducing the expression of Coronin 7, which is required for budding of Golgi-derived transport vesicles. In summary, UBR4/POE fulfills a conserved and unexpected role in the vesicular trafficking of neuropeptides, a function that has important implications for circadian clock synchrony and circuit-level signal processing." @default.
- W4221009737 created "2022-04-03" @default.
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- W4221009737 date "2022-03-24" @default.
- W4221009737 modified "2023-10-15" @default.
- W4221009737 title "UBR4/POE facilitates secretory trafficking to maintain circadian clock synchrony" @default.
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- W4221009737 doi "https://doi.org/10.1038/s41467-022-29244-1" @default.
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