ArticleMolecular genetics and genomics : MGG2003
MCB-mediated regulation of cell cycle-specific cdc22+ transcription in fission yeast.
Article in Molecular genetics and genomics : MGG, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 16 citations in OpenAlex.
- Deconvolution of chromatin immunoprecipitation-microarray (ChIP-chip) analysis of MBF occupancies reveals the temporal recruitment of Rep2 at the MBF target genes.Eukaryotic cell · 2011Article
- The fission yeast homeodomain protein Yox1p binds to MBF and confines MBF-dependent cell-cycle transcription to G1-S via negative feedback.PLoS genetics · 2009Article
- Periodic gene expression patterns during the highly synchronized cell nucleus and organelle division cycles in the unicellular red alga Cyanidioschyzon merolae.DNA research : an international journal for rapid publication of reports on genes and genomes · 2009Article
- Identification of cell cycle-regulated genes in fission yeast.Molecular biology of the cell · 2005Article
- DSC1-MCB regulation of meiotic transcription in Schizosaccharomyces pombe.Molecular genetics and genomics : MGG · 2004Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The cdc22+ gene of the fission yeast, Schizosaccharomyces pombe, encodes the large subunit of ribonucleotide reductase, and is periodically expressed during the mitotic cell cycle, transcript abundance reaching a maximum at the G1-S boundary. This regulation of expression is controlled by a transcription factor complex called DSC1, which binds to MCB motifs (ACGCGT) present in the promoter of cdc22+. cdc22+ has a complex pattern of MCBs, including two clusters of four motifs each, one of which is located within the transcribed region. We show that both clusters of MCBs contribute to the regulation of cdc22+ expression during the cell cycle, each having a different role. The MCB cluster within the transcribed region has the major role in regulating cdc22+, as its removal results in loss of transcription. The upstream cluster, instead, controls cell cycle-specific transcription through a negative function, as its removal results in expression of cdc22+ throughout the cell cycle. Both MCB clusters bind DSC1. We show that the interaction of DSC1 with the MCB cluster within the transcribed region has a high "on-off" rate, suggesting a mechanism by which DSC1 could activate expression, and still allow RNA polymerase to pass during transcription. Finally, we show that both clusters are orientation-dependent in their function. The significance of these results, in the context of MCB-mediated regulation of G1-S expression in fission yeast, is discussed.
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