Chromatin topology dynamics in gene activation

IF 31.7 1区 生物学 Q1 GENETICS & HEREDITY Nature genetics Pub Date : 2024-12-09 DOI:10.1038/s41588-024-02041-w
Petra Gross
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基因激活中的染色质拓扑动力学
基因时空调控是精确发育的必要条件,涉及启动子和远端调控元件(DREs),如增强子或沉默子。然而,与启动子的物理接触并不总是导致基因表达,DREs如何促进基因激活尚不完全清楚。Mahara等人将小鼠胚胎干细胞向神经祖细胞分化过程中的染色质构象捕获技术与转录和染色质谱相结合,以鉴定有助于基因诱导的染色质拓扑结构。他们观察到不同的基因组拓扑结构,以及短暂的相互作用,高度拓扑重塑与更高程度的转录诱导相关。有趣的是,DREs和基因启动子之间的物理接触的获得以及它们的丢失和短暂形成都与分化过程中的转录动力学有关。在这种情况下,阻止瞬时相互作用的形成和破坏会损害早期基因激活,指出动态染色质拓扑结构在早期发育阶段的重要作用。这项工作强调了时间启动子相互作用在调节适当发育所需的基因表达程序诱导中的重要性。原始参考文献:Mol. Cell https://doi.org/10.1016/j.molcel.2024.10.005 (2024)
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来源期刊
Nature genetics
Nature genetics 生物-遗传学
CiteScore
43.00
自引率
2.60%
发文量
241
审稿时长
3 months
期刊介绍: Nature Genetics publishes the very highest quality research in genetics. It encompasses genetic and functional genomic studies on human and plant traits and on other model organisms. Current emphasis is on the genetic basis for common and complex diseases and on the functional mechanism, architecture and evolution of gene networks, studied by experimental perturbation. Integrative genetic topics comprise, but are not limited to: -Genes in the pathology of human disease -Molecular analysis of simple and complex genetic traits -Cancer genetics -Agricultural genomics -Developmental genetics -Regulatory variation in gene expression -Strategies and technologies for extracting function from genomic data -Pharmacological genomics -Genome evolution
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