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细菌的基因组结构和全局基因调控:迈向统一模型的进展?

Genome architecture and global gene regulation in bacteria: making progress towards a unified model?

机构信息

Department of Microbiology, Moyne Institute of Preventive Medicine, Trinity College Dublin, Dublin 2, Ireland.

出版信息

Nat Rev Microbiol. 2013 May;11(5):349-55. doi: 10.1038/nrmicro3007. Epub 2013 Apr 3.

DOI:10.1038/nrmicro3007
PMID:23549066
Abstract

Data obtained with advanced imaging techniques, chromosome conformation capture methods, bioinformatics and molecular genetics, together with insights from polymer physics and mechanobiology, are helping to refine our understanding of the spatiotemporal organization of the bacterial nucleoid and its gene expression programmes. Here, I discuss the proposal that, in addition to DNA topology and nucleoid-associated proteins, gene regulation is an important organizing principle of nucleoid architecture.

摘要

利用先进的成像技术、染色体构象捕获方法、生物信息学和分子遗传学,以及聚合物物理和机械生物学的见解,正在帮助我们更深入地了解细菌核区的时空组织及其基因表达程序。在这里,我讨论了这样一种观点,即除了 DNA 拓扑和核区相关蛋白外,基因调控也是核区结构的一个重要组织原则。

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本文引用的文献

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Caulobacter chromosome in vivo configuration matches model predictions for a supercoiled polymer in a cell-like confinement.钙杆菌染色体在体内的构象与模型对细胞样限制中超螺旋聚合物的预测相匹配。
Proc Natl Acad Sci U S A. 2013 Jan 29;110(5):1674-9. doi: 10.1073/pnas.1220824110. Epub 2013 Jan 14.
2
Molecular basis for a protein-mediated DNA-bridging mechanism that functions in condensation of the E. coli chromosome.蛋白质介导的 DNA 桥接机制的分子基础,该机制在大肠杆菌染色体的凝聚中起作用。
Mol Cell. 2012 Nov 30;48(4):560-71. doi: 10.1016/j.molcel.2012.09.009. Epub 2012 Oct 18.
3
Variation of the folding and dynamics of the Escherichia coli chromosome with growth conditions.
快速生长的大肠杆菌的拟核定位于靠近内膜的位置,并由转录、翻译和细胞几何形状组织而成。
Nat Commun. 2025 Apr 20;16(1):3732. doi: 10.1038/s41467-025-58723-4.
4
Structure of the E. coli nucleoid-associated protein YejK reveals a novel DNA binding clamp.大肠杆菌核相关蛋白 YejK 的结构揭示了一种新的 DNA 结合夹。
Nucleic Acids Res. 2024 Jul 8;52(12):7354-7366. doi: 10.1093/nar/gkae459.
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Antisense RNA regulates glutamine synthetase in a heterocyst-forming cyanobacterium.反义 RNA 调控异形胞形成蓝藻中的谷氨酰胺合成酶。
Plant Physiol. 2024 Jul 31;195(4):2911-2920. doi: 10.1093/plphys/kiae263.
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Combined Study of Gene Expression and Chromosome Three-Dimensional Structure in Escherichia coli During Growth Process.大肠杆菌生长过程中基因表达与染色体三维结构的联合研究。
Curr Microbiol. 2024 Mar 26;81(5):122. doi: 10.1007/s00284-024-03640-w.
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EMBO J. 2012 May 11;31(14):3198-211. doi: 10.1038/emboj.2012.128.