Nuclear functions in space and time: Gene expression in a dynamic, constrained environment

Nuclear functions in space and time: Gene expression in a dynamic, constrained environment
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空间和时间中的核功能:动态、受限环境中的基因表达

DOI:
10.1016/j.febslet.2008.04.029
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发表时间:
2008
期刊:
影响因子:
3.5
通讯作者:
A. Lamond
A. Lamond
中科院分区:
生物学3区
文献类型:
--
作者:
L. Trinkle;A. Lamond

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所有真核细胞都将它们的基因组包裹在一个专门的、被称为细胞核的膜结合细胞器中,它的功能是将基因转录从细胞质中蛋白质翻译的位点分离出来。尽管进行了大量的研究,但染色体结构和基因表达机制的基本问题仍有待解决,包括基因组的空间组织与转录机制之间的关系。强大的体内方法使研究人员能够在动态细胞环境中测试已建立的体外概念,而全基因组筛选使结构和功能参数的快速高通量分析成为可能。在一些情况下,正如这里强调的,这已经出现了令人惊讶的结果,并迫使对核结构和基因调控模型进行重新评估。
All eukaryotic cells enclose their genome within a dedicated, membrane-bound organelle termed the nucleus, which functions to partition gene transcription from sites of protein translation in the cytoplasm. Despite a great deal of research effort, basic questions about chromosome structure and gene expression mechanisms remain to be answered, including the relationship between the spatial organization of the genome and the transcription machinery. Powerful in vivo approaches are allowing researchers to test established in vitro concepts within the dynamic cellular environment, while genome-wide screens have enabled rapid high throughput analyses of both structural and functional parameters. In several cases, as highlighted here, this has turned up surprising results and has forced a re-evaluation of models for nuclear structure and gene regulation.
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