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arXiv 0812.3910q-bio.GNq-bio.BMq-bio.MNq-bio.PEq-bio.QMq-bio.SC
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结合基序的信息论分析揭示了转录调控的根本不同策略

Fundamentally different strategies for transcriptional regulation are revealed by information-theoretical analysis of binding motifs

Leonid A. Mirny, Zeba Wunderlich

摘要:

为了调节特定的基因,转录因子(TF)需要结合特定的基因组位置。在约10^6-10^9个诱饵位点的存在下,这个基因组地址是如何指定的?我们对319个已知TF结合基序的分析清楚地表明,原核生物和真核生物使用截然不同的策略将TF靶向特定的基因组位置;真核生物TF表现出广泛的非功能性结合,并需要在调控区域中聚集位点以实现特异性。

英文摘要:

To regulate a particular gene, a transcription factor (TF) needs to bind a specific genome location. How is this genome address specified amid the presence of ~10^6-10^9 decoy sites? Our analysis of 319 known TF binding motifs clearly demonstrates that prokaryotes and eukaryotes use strikingly different strategies to target TFs to specific genome locations; eukaryotic TFs exhibit widespread nonfunctional binding and require clustering of sites in regulatory regions for specificity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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