期刊
MOLECULAR AND CELLULAR BIOLOGY
卷 32, 期 24, 页码 4892-4897出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/MCB.01127-12
关键词
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资金
- NSF [MCB-1050470]
- Government of the Russian Federation [220]
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [1440356, 1050470] Funding Source: National Science Foundation
Enhancers are regulatory DNA sequences that activate transcription over long distances. Recent studies revealed a widespread role of distant activation in eukaryotic gene regulation and in development of various human diseases, including cancer. Genomic and gene-targeted studies of enhancer action revealed novel mechanisms of transcriptional activation over a distance. They include formation of stable, inactive DNA-protein complexes at the enhancer and target promoter before activation, facilitated distant communication by looping of the spacer chromatin-covered DNA, and promoter activation by mechanisms that are different from classic recruiting. These studies suggest the similarity between the looping mechanisms involved in enhancer action on DNA in bacteria and in chromatin of higher organisms.
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