Jérôme Wuarin

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The liver-enriched transcriptional activator protein DBP accumulates in hepatocytes of adult rats according to a strictly controlled circadian rhythm. DBP is not detectable in liver nuclei during the morning hours. Its level raises sharply during the afternoon and reaches a maximum at about 8 p.m. During the night the cellular DBP concentration decreases(More)
We show that in fission yeast the mitotic B type cyclin Cdc13/Cdc2 kinase associates with replication origins in vivo. This association is dependent on the origin recognition complex (ORC), is established as chromosomes are replicated, and is maintained during G2 and early mitosis. Cells expressing an orp2 (ORC2) allele that reduces binding of Cdc13 to(More)
In fission yeast, passage through START and into S-phase requires cyclin-dependent kinase (CDK) activity and the periodic transcription of genes essential for S-phase ('S-phase transcription'). Here we investigate the control of this transcription in the mitotic cell cycle. We demonstrate that the periodicity of S-phase transcription is likely to be(More)
The promoter of the mouse albumin gene contains at least six binding sites for specific DNA-binding proteins (A to F). Four of these sites (A, D, E, and F) can be occupied by transcription factors that are considerably enriched in liver nuclei, as compared to spleen or brain nuclei. These factors consist of a heat-stable protein that fills sites A, D, and(More)
The mouse albumin gene promoter has six closely spaced binding sites for nuclear proteins that are located between the TATA motif and nucleotide position -170. In vitro transcription with liver or spleen nuclear extracts of templates containing either mutated or polymerized albumin promoter elements establishes a hierarchy of the different protein binding(More)
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