Genome-wide transcription factor binding: beyond direct target regulation.
Genome-wide transcription factor binding: beyond direct target regulation.
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DOI:
10.1016/j.tig.2011.01.001
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发表时间:
2011-04
影响因子:
11.4
通讯作者:
Tapscott, Stephen J.
中科院分区:
文献类型:
--
作者:
MacQuarrie, Kyle L.;Fong, Abraham P.;Morse, Randall H.;Tapscott, Stephen J.
The binding of transcription factors to specific DNA target sequences is the fundamental basis of gene regulatory networks. Chromatin immunoprecipitation combined with DNA tiling arrays or high-throughput sequencing—ChIP-chip and ChIP-seq—has produced many recent studies that detail the binding sites of various transcription factors. Surprisingly, data from a variety of model organisms and tissues have demonstrated that transcription factors vary greatly in their number of genomic binding sites, and that binding events can significantly exceed the number of known or possible direct gene targets. Thus, our current understanding of transcription factor function must expand to encompass what role, if any, binding might play outside of direct transcriptional target regulation. Here, we discuss the biological significance of genome-wide binding of transcription factors and present models that can account for this phenomenon.
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