期刊
CURRENT OPINION IN GENETICS & DEVELOPMENT
卷 18, 期 5, 页码 397-403出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.gde.2008.07.007
关键词
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资金
- NIGMS NIH HHS [R01 GM056131, R01 GM056131-09, R01 GM056131-06A1, R01 GM056131-08, R01 GM056131-07] Funding Source: Medline
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM056131] Funding Source: NIH RePORTER
Tissue differentiation and signal transduction involve dramatic changes in gene expression. These changes can be brought about by the expression or activation of sequence-specific transcription factors. In order to regulate their target genes, such factors must navigate the intricate chromatin environment and engage the complex basal transcriptional machinery. We discuss three mechanisms through which signaling pathways can interact with complexes that alter chromatin structure or recruit RNA polymerase II. Signals that promote differentiation may alter the properties of such transcriptional regulatory complexes by incorporating tissue-specific subunits. Alternatively, adaptor subunits specialized to interact with specific transcription factors may allow a single complex to respond to multiple signals. Finally, individual regulatory proteins may integrate a variety of signals, allowing crosstalk between pathways.
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