Freddie CT, et al. (2007) Functional interactions between the Forkhead transcription factor FOXK1 and the MADS-box protein SRF. Nucleic Acids Res 35(15):5203-12
Abstract: The combinatorial control of gene expression by the association of members of different families of transcription factors is a common theme in eukaryotic transcriptional control. The MADS-box transcription factors SRF and Mcm1 represent paradigms for such regulation through their interaction with numerous partner proteins. For example, in Saccharomyces cerevisiae, Mcm1 interacts with the forkhead transcription factor Fkh2. Here, we identify a novel interaction between SRF and the Forkhead transcription factor FOXK1 in human cells. The importance of this interaction is shown for the regulation of the SRF target genes SM alpha-actin and PPGB. The binding of FOXK1 to the SM alpha-actin and PPGB promoters requires the presence of SRF on the promoter. FOXK1 acts as a transcriptional repressor and it represses SM alpha-actin and PPGB expression. Thus FOXK1 represents an additional member of the growing repertoire of transcription factors that can interact with SRF and modulate the transcriptional output from SRF-regulated promoters.
|Status: Published||Type: Journal Article||PubMed ID: 17670796|
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