FEBS Letters · 2000 · 73 citations · 33 references
Life SciencesGeneticsMolecular BiologyGene ExpressionSignal TransductionTranscriptional RegulationCircadian Clock MechanismsCircadian Gene ExpressionCircadian Molecular MechanismsCircadian PhysiologyGene Regulation In PhysiologyPromoter RegulationCircadian Regulation Of Gene ExpressionCircadian Rhythm Gene ExpressionCircadian Transcriptional ControlCircadian Transcriptional Feedback LoopsCircadian Transcriptional RegulationClock Gene Transcriptional RegulationMolecular Clock MechanismsRapid Adaptation
The mammalian period (Per) genes are components of the circadian clock and appear to be regulated via an autoregulatory feedback loop. Here we show that the human PER1 (hPER1) gene is synergistically activated by protein kinases A and C (PKA, PKC) and cAMP responsive element binding protein. Activators and inhibitors of PKA as well as PKC modulate endogenous hPER1 expression and hPER1 promoter-driven reporter gene activity in a dose-dependent manner. Our results suggest that the hPER1 promoter acts as a sensor for multiple signaling molecules thereby integrating different physiological parameters. This regulation of hPER1 appears to be significant for rapid adaptation to changing environmental conditions.
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Jane Winer, Christopher Kwang S. Jung, Irene Shackel et al. · Analytical Biochemistry · 1999 · 1.4K citations
A Differential Response of Two Putative Mammalian Circadian Regulators, mper1and mper2, to Light
Urs Albrecht, Zhong Sheng Sun, Gregor Eichele et al. · Cell · 1997 · 878 citations · Full text