Activation of a signaling pathway by the physical translocation of a chromosome.
Activation of a signaling pathway by the physical translocation of a chromosome.
复制标题
通过染色体的物理易位激活信号通路。
DOI:
10.1016/j.devcel.2021.06.014
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发表时间:
2021-08-09
影响因子:
11.8
通讯作者:
Laub MT
中科院分区:
文献类型:
--
作者:
Guzzo M;Sanderlin AG;Castro LK;Laub MT
In every organism, the cell cycle requires the execution of multiple processes in a strictly defined order. However, the mechanisms used to ensure such order remain poorly understood, particularly in bacteria. Here, we show that the activation of the essential CtrA signaling pathway that triggers cell division in Caulobacter crescentus is intrinsically coupled to the initiation of DNA replication via the physical translocation of a newly-replicated chromosome, powered by the ParABS system. We demonstrate that ParA accumulation at the new cell pole during chromosome segregation recruits ChpT, an intermediate component of the CtrA signaling pathway. ChpT is normally restricted from accessing the selective PopZ polar microdomain until the new chromosome and ParA arrive. Consequently, any disruption to DNA replication initiation prevents ChpT polarization and, in turn, cell division. Collectively, our findings reveal how major cell-cycle events are coordinated in Caulobacter and, importantly, how chromosome translocation triggers an essential signaling pathway. Guzzo et al. reveal a mechanism for coupling cell division to DNA replication in Caulobacter crescentus. They find that active translocation of a newly replicated chromosome activates an essential signal transduction pathway by recruiting the intermediate component of that pathway to the cell pole.
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DOI:
10.1111/febs.13166
发表时间:
2015-07
期刊:
The FEBS journal
影响因子:
--
作者:
Gorbsky GJ
通讯作者:
Gorbsky GJ
影响因子:
3.6
作者:
Curtis PD;Quardokus EM;Lawler ML;Guo X;Klein D;Chen JC;Arnold RJ;Brun YV
通讯作者:
Brun YV
DOI:
10.1083/jcb.201505019
发表时间:
2015-08-03
期刊:
The Journal of cell biology
影响因子:
--
作者:
Badrinarayanan A;Le TB;Laub MT
通讯作者:
Laub MT
影响因子:
64.5
作者:
Domian, IJ;Quon, KC;Shapiro, L
通讯作者:
Shapiro, L
影响因子:
10.5
作者:
Haakonsen DL;Yuan AH;Laub MT
通讯作者:
Laub MT