A novel target of IscS in Escherichia coli: participating in DNA phosphorothioation.
A novel target of IscS in Escherichia coli: participating in DNA phosphorothioation.
复制标题
大肠杆菌中 IscS 的新靶点:参与 DNA 硫代磷酸化
DOI:
10.1371/journal.pone.0051265
复制
发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Liang J
中科院分区:
文献类型:
--
作者:
An X;Xiong W;Yang Y;Li F;Zhou X;Wang Z;Deng Z;Liang J
Many bacterial species modify their DNA with the addition of sulfur to phosphate groups, a modification known as DNA phosphorothioation. DndA is known to act as a cysteine desulfurase, catalyzing a key biochemical step in phosphorothioation. However, bioinformatic analysis revealed that 19 out of the 31 known dnd gene clusters, contain only four genes (dndB-E), lacking a key cysteine desulfurase corresponding gene. There are multiple cysteine desulfurase genes in Escherichia coli, but which one of them participates into DNA phosphorothioation is unknown. Here, by employing heterologous expression of the Salmonella enterica dnd gene cluster named dptBCDE in three E. coli mutants, each of which lacked a different cysteine desulfurase gene, we show that IscS is the only cysteine desulfurase that collaborates with dptB-E, resulting in DNA phosphorothioation. Using a bacterial two-hybrid system, protein interactions between IscS and DptC, and IscS and DptE were identified. Our findings revealed IscS as a key participant in DNA phosphorothioation and lay the basis for in-depth analysis of the DNA phosphorothioation biochemical pathway.
登录
查看更多内容
影响因子:
4.8
作者:
Mihara, H;Kurihara, T;Esaki, N
通讯作者:
Esaki, N
影响因子:
14.8
作者:
Wang, Lianrong;Chen, Shi;Dedon, Peter C.
通讯作者:
Dedon, Peter C.
影响因子:
9.9
作者:
通讯作者:
--
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
3.6
作者:
He, Xinyi;Ou, Hong-Yu;Deng, Zixin
通讯作者:
Deng, Zixin