中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Super-resolution imaging reveals changes in Escherichia coli SSB localization in response to DNA damage

文献类型:期刊论文

作者Zhao, Tianyu1; Liu, Yan2,3; Wang, Zilin4,5; He, Rongyan2,3; Zhang, Jia Xiang4,5; Xu, Feng2,3; Lei, Ming1; Deci, Michael B.6; Nguyen, Juliane6; Bianco, Piero R.4,5
刊名GENES TO CELLS
关键词DNA repair DNA replication E coli OB-fold single-strand DNA-binding protein SSB interactome super-resolution microscopy
ISSN号1356-9597;1365-2443
DOI10.1111/gtc.12729
产权排序1
英文摘要

The E. coli single-stranded DNA-binding protein (SSB) is essential to viability. It plays key roles in DNA metabolism where it binds to nascent single strands of DNA and to target proteins known as the SSB interactome. There are >2,000 tetramers of SSB per cell with 100-150 associated with the genome at any one time, either at DNA replication forks or at sites of repair. The remaining 1,900 tetramers could constantly diffuse throughout the cytosol or be associated with the inner membrane as observed for other DNA metabolic enzymes. To visualize SSB localization and to ascertain potential spatiotemporal changes in response to DNA damage, SSB-GFP chimeras were visualized using a novel, super-resolution microscope optimized for the study of prokaryotic cells. In the absence of DNA damage, SSB localizes to a small number of foci and the excess protein is associated with the inner membrane where it binds to the major phospholipids. Within five minutes following DNA damage, the vast majority of SSB disengages from the membrane and is found almost exclusively in the cell interior. Here, it is observed in a large number of foci, in discreet structures or, in diffuse form spread over the genome, thereby enabling repair events.

语种英语
WOS记录号WOS:000496241900001
出版者WILEY
源URL[http://ir.opt.ac.cn/handle/181661/31924]  
专题西安光学精密机械研究所_瞬态光学技术国家重点实验室
通讯作者Lei, Ming
作者单位1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, Sch Life Sci & Technol, Key Lab Biomed Informat Engn, Minist Educ, Xian, Shaanxi, Peoples R China
3.Xi An Jiao Tong Univ, BEBC, Xian, Shaanxi, Peoples R China
4.Univ Buffalo, Ctr Single Mol Biophys, Buffalo, NY 14214 USA
5.Univ Buffalo, Dept Microbiol & Immunol, Buffalo, NY 14214 USA
6.Univ Buffalo, Sch Pharm, Dept Pharmaceut Sci, Buffalo, NY 14214 USA
推荐引用方式
GB/T 7714
Zhao, Tianyu,Liu, Yan,Wang, Zilin,et al. Super-resolution imaging reveals changes in Escherichia coli SSB localization in response to DNA damage[J]. GENES TO CELLS.
APA Zhao, Tianyu.,Liu, Yan.,Wang, Zilin.,He, Rongyan.,Zhang, Jia Xiang.,...&Bianco, Piero R..
MLA Zhao, Tianyu,et al."Super-resolution imaging reveals changes in Escherichia coli SSB localization in response to DNA damage".GENES TO CELLS

入库方式: OAI收割

来源:西安光学精密机械研究所

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