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![]() ![]() |
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 |
DOI | 10.1111/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
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。