Non-transcriptional regulatory processes shape transcriptional network dynamics.

Non-transcriptional regulatory processes shape transcriptional network dynamics.
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DOI:
10.1038/nrmicro2667
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发表时间:
2011-10-11
期刊:
Nature reviews. Microbiology
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有关细胞外或细胞内环境的信息通常被捕获为通过调控网络传播的生化信号。这些信号最终通常通过改变细胞中的基因表达程序来驱动表型变化。转录调控网络的重建提供了令人信服的细菌生理学图景,但转录网络图谱本身往往无法描述表型。在许多情况下,转录调控网络的动态表现取决于转录后或翻译后调控和多效性效应。细胞反应动力学最终由转录和非转录网络之间的相互作用决定,对生理学和进化具有重大影响。在这里,我们概述了可能影响天然和合成细菌调节网络性能的非转录相互作用。
Information about the extra- or intracellular environment is often captured as biochemical signals propagating through regulatory networks. These signals eventually drive phenotypic changes, typically by altering gene expression programs in the cell. Reconstruction of transcriptional regulatory networks has given a compelling picture of bacterial physiology, but transcriptional network maps alone often fail to describe phenotypes. In many cases, the dynamical performance of transcriptional regulatory networks depends on post-transcriptional or post-translational regulation and pleiotropic effects. Cellular response dynamics are ultimately determined by interactions between transcriptional and non-transcriptional networks with dramatic implications for physiology and evolution. Here, we provide an overview of non-transcriptional interactions that can affect the performance of natural and synthetic bacterial regulatory networks.
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