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ECB-ART-40727
Nucleic Acids Res 2008 Jul 01;3612:3905-15. doi: 10.1093/nar/gkn291.
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Transcriptional regulation of the Drosophila moira and osa genes by the DREF pathway.

Nakamura K , Ida H , Yamaguchi M .


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The DNA replication-related element binding factor (DREF) plays an important role in regulation of cell proliferation in Drosophila, binding to DRE and activating transcription of genes carrying this element in their promoter regions. Overexpression of DREF in eye imaginal discs induces a rough eye phenotype in adults, which can be suppressed by half dose reduction of the osa or moira (mor) genes encoding subunits of the BRM complex. This ATP-dependent chromatin remodeling complex is known to control gene expression and the cell cycle. In the 5'' flanking regions of the osa and mor genes, DRE and DRE-like sequences exist which contribute to their promoter activities. Expression levels and promoter activities of osa and mor are decreased in DREF knockdown cells and our results in vitro and in cultured cells indicate that transcription of osa and mor is regulated by the DRE/DREF regulatory pathway. In addition, mRNA levels of other BRM complex subunits and a target gene, string/cdc25, were found to be decreased by knockdown of DREF. These results indicate that DREF is involved in regulation of the BRM complex and thereby the cell cycle.

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Genes referenced: LOC105444658 LOC115919910 LOC574811 LOC576121 LOC587333 tubgcp2


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References [+] :
Bouazoune, ATP-dependent chromatin remodeling complexes in Drosophila. 2006, Pubmed