Regulation of CSF1 promoter by the SWI/SNF-like BAF complex
Regulation of CSF1 promoter by the SWI/SNF-like BAF complex
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DOI:
10.1016/s0092-8674(01)00446-9
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发表时间:
2001-08-10
期刊:
影响因子:
64.5
通讯作者:
Zhao, KJ
中科院分区:
文献类型:
--
作者:
Liu, R;Liu, H;Zhao, KJ
The mammalian BAF complex regulates gene expression by modifying chromatin structure. In this report, we identify 80 genes activated and 2 genes repressed by the BAF complex in SW-13 cells. We find that prior binding of NFI/CTF to the NFI/CTF binding site in CSF1 promoter is required for the recruitment of the BAF complex and the BAF-dependent activation of the promoter. Furthermore, the activation of the CSF1 promoter requires Z-DNA-forming sequences that are converted to Z-DNA structure upon activation by the BAF complex. The BAF complex facilitates Z-DNA formation in a nucleosomal template in vitro. We propose a model in which the BAF complex promotes Z-DNA formation which, in turn, stabilizes the open chromatin structure at the CSF1 promoter.