Separable functions of Tof1/Timeless in intra-S-checkpoint signalling, replisome stability and DNA topological stress
Separable functions of Tof1/Timeless in intra-S-checkpoint signalling, replisome stability and DNA topological stress
复制标题
Tof1/Timeless 在 S-检查点内信号传导、复制体稳定性和 DNA 拓扑应激中的可分离功能
DOI:
10.1101/2019.12.17.877811
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Westhorpe R
中科院分区:
文献类型:
--
作者:
Westhorpe R
The highly conserved Tof1/Timeless proteins minimise replication stress and promote normal DNA replication. They are required to mediate the DNA replication checkpoint (DRC), the stable pausing of forks at protein fork blocks, the coupling of DNA helicase and polymerase functions during replication stress (RS) and the preferential resolution of DNA topological stress ahead of the fork. Here we demonstrate that the roles of theSaccharomyces cerevisiaeTimeless protein Tof1 in DRC signalling and resolution of DNA topological stress require distinct N and C terminal regions of the protein, whereas the other functions of Tof1 are closely linked to the stable interaction between Tof1 and its constitutive binding partner Csm3/Tipin. By separating the role of Tof1 in DRC from fork stabilisation and coupling, we show that Tof1 has distinct activities in checkpoint activation and replisome stability to ensure the viable completion of DNA replication following replication stress.
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影响因子:
16
作者:
Lou, Huiqiang;Komata, Makiko;Katou, Yuki;Guan, Zhiyun;Reis, Clara C.;Budd, Martin;Shirahige, Katsuhiko;Campbell, Judith L.
通讯作者:
Campbell, Judith L.
影响因子:
16
作者:
Costanzo, V;Shechter, D;Gautier, J
通讯作者:
Gautier, J
影响因子:
21.3
作者:
Gambus, A;Jones, RC;Labib, K
通讯作者:
Labib, K
DOI:
--
发表时间:
2019
期刊:
bioRxiv
影响因子:
--
作者:
M. Shyian;B. Albert;Andreja Moset Zupan;V. Ivanitsa;Gabrielle Charbonnet;Daniel Dilg;D. Shore
通讯作者:
D. Shore
影响因子:
14.9
作者:
Grabarczyk, Daniel B.
通讯作者:
Grabarczyk, Daniel B.