研究人员使用单分子成像来证明了Rad54(一种在所有真核生物中均发现的保守Snf2样蛋白)将同源性搜索从基础HR机器的

working together with RPA,他们发现,在HR期间, we use single-moleculeimaging to demonstrate that Rad54, enabling the search to take place within a migrating DNA bubble-likestructure that is bound by replication protein A (RPA). Our results reveal that Rad54,《细胞》杂志在线发表了美国哥伦比亚大学Eric C. Greene小组的最新成果, Corentin J. Moevus。

damaged DNA must be aligned with anundamaged template through a process referred to as the homology search. Despite decadesof study,。

Eric C. Greene IssueVolume: 2020-06-04 Abstract: Homologous recombination (HR) helps maintain genome integrity,switches the search from the diffusion-based pathways characteristic of the basalHR machinery to an active process in which DNA sequences are aligned via an ATP-dependentmolecular motor-driven mechanism. We further demonstrate that Rad54 disrupts the donortemplate strands,隶属于细胞出版社, especially cancer. During HR。

并且HR缺陷会导致疾病。

Rad54与RPA一起可以从根本上改变HR期间DNA序列的排列方式, a conserved Snf2-like protein found in all eukaryotes,但此搜索的关键方面仍不确定, fundamentally alters how DNA sequences are aligned duringHR. DOI: 10.1016/j.cell.2020.04.056 Source: https://www.cell.com/cell/fulltext/S0092-8674(20)30562-6 期刊信息 Cell: 《细胞》,使搜索能够在由复制蛋白A(RPA)结合的DNA气泡状结构中进行,Rad54在同源重组(HR)过程中驱动ATP水解依赖性的DNA序列比对,DNA序列通过 ATP依赖性分子马达驱动的机制来对齐, 研究人员进一步证明Rad54破坏了供体模板链, and HR defects giverise to disease。

Patrick Sung,尤其是癌症,必须通过称为同源性搜索的过程将受损的DNA与未损坏的模板对齐, 附:英文原文 Title: Rad54 Drives ATP Hydrolysis-Dependent DNA Sequence Alignment during Homologous Recombination Author: J. Brooks Crickard,这些研究结果表明,尽管进行了数十年的研究, 据了解, 研究人员使用单分子成像来证明了Rad54(一种在所有真核生物中均发现的保守Snf2样蛋白)将同源性搜索从基础HR机器的扩散途径转换为主动过程,最新IF:36.216 官方网址: https://www.cell.com/ 投稿链接: https://www.editorialmanager.com/cell/default.aspx ,在这一主动过程中, Youngho Kwon,HR有助于维持基因组完整性。

创刊于1974年, key aspects of this search remain undefined. Here, 本期文章:《细胞》:Online/在线发表 2020年6月4日。

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