The Circadian Clock of the Unicellular Eukaryotic Model Organism Chlamydomonas reinhardtii
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Abstract
The green unicellular alga Chlamydomonas reinhardtii, also called 'green yeast', emerged in the past years as a model organism for specific scientific questions such as chloroplast biogenesis and function, the composition of the flagella including its basal apparatus, or the mechanism of the circadian clock. Sequencing of its chloroplast and mitochondrial genomes have already been completed and a first draft of its nuclear genome has also been released recently. In C. reinhardtii several circadian rhythms are physiologically well characterized, and one of them has even been shown to operate in outer space. Circadian expression patterns of nuclear and plastid genes have been studied. The mode of regulation of these genes occurs at the transcriptional level, although there is also evidence for posttranscriptional control. A clock-controlled, phylogenetically conserved RNA-binding protein was characterized in this alga, which interacts with several mRNAs that all contain a common cis-acting motif. Its function within the circadian system is currently under investigation. This review summarizes the current state of the knowledge about the circadian system in C. reinhardtii and points out its potential for future studies.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
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- Synchronization of the Molecular Clockwork by Light- and Food-Related Cues in Mammals
- Identification of Rhythmic Subsystems in the Circadian Cycle of Crassulacean Acid Metabolism under Thermoperiodic Perturbations
- Age-Dependent Effects of Conditioning on Cholinergic and Vasopressin Systems in the Rat Suprachiasmatic Nucleus
- The Magnetofection Method: Using Magnetic Force to Enhance Gene Delivery
- The Protease Inhibitor Bikunin, a Novel Anti-Metastatic Agent
- Transcriptional Regulation of the Urokinase Receptor (u-PAR) – A Central Molecule of Invasion and Metastasis
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- Trichostatin A and Structurally Related Histone Deacetylase Inhibitors Induce 5-Lipoxygenase Promoter Activity
- Treatment of Tumor Cells with Histone Deacetylase Inhibitors Results in Altered Recruitment of Methyl-CpG Binding Proteins to a Methylated CpG Island
- Intra- and Interspecies Interactions between Prion Proteins and Effects of Mutations and Polymorphisms
- Contribution of the Absolutely Conserved B8Gly to the Foldability of Insulin
- Fabin, a Novel Calcyon-Like and Glucanase-Like Protein with Mitogenic, Antifungal and Translation-Inhibitory Activities from Broad Beans
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Articles in the same Issue
- The Circadian Clock of the Unicellular Eukaryotic Model Organism Chlamydomonas reinhardtii
- Cardiovascular Control by the Suprachiasmatic Nucleus: Neural and Neuroendocrine Mechanisms in Human and Rat
- Synchronization of the Molecular Clockwork by Light- and Food-Related Cues in Mammals
- Identification of Rhythmic Subsystems in the Circadian Cycle of Crassulacean Acid Metabolism under Thermoperiodic Perturbations
- Age-Dependent Effects of Conditioning on Cholinergic and Vasopressin Systems in the Rat Suprachiasmatic Nucleus
- The Magnetofection Method: Using Magnetic Force to Enhance Gene Delivery
- The Protease Inhibitor Bikunin, a Novel Anti-Metastatic Agent
- Transcriptional Regulation of the Urokinase Receptor (u-PAR) – A Central Molecule of Invasion and Metastasis
- Identification and Characterization of KAT, a Novel Gene Preferentially Expressed in Several Human Cancer Cell Lines
- Trichostatin A and Structurally Related Histone Deacetylase Inhibitors Induce 5-Lipoxygenase Promoter Activity
- Treatment of Tumor Cells with Histone Deacetylase Inhibitors Results in Altered Recruitment of Methyl-CpG Binding Proteins to a Methylated CpG Island
- Intra- and Interspecies Interactions between Prion Proteins and Effects of Mutations and Polymorphisms
- Contribution of the Absolutely Conserved B8Gly to the Foldability of Insulin
- Fabin, a Novel Calcyon-Like and Glucanase-Like Protein with Mitogenic, Antifungal and Translation-Inhibitory Activities from Broad Beans
- Quantification of Elastase-Like Activity in 13 Human Cancer Cell Lines and in an Immortalized Human Epithelial Cell Line by RP-HPLC
- Differences in the Activation Mechanism between the α and β Subunits of Human Meprin
