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.
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DOI:
10.1093/nar/gkaa963
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发表时间:
2020-12-02
影响因子:
14.9
通讯作者:
Baxter J
中科院分区:
文献类型:
--
作者:
Westhorpe R;Keszthelyi A;Minchell NE;Jones D;Baxter J
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 the Saccharomyces cerevisiae Timeless 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:
3.5
作者:
Keszthelyi A;Minchell NE;Baxter J
通讯作者:
Baxter J
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.
DOI:
10.1073/pnas.1607552113
发表时间:
2016-06-28
影响因子:
11.1
作者:
Bastia, Deepak;Srivastava, Pankaj;O'Donnell, Michael E.
通讯作者:
O'Donnell, Michael E.
影响因子:
16
作者:
Baretic, Domagoj;Jenkyn-Bedford, Michael;Yeeles, Joseph T. P.
通讯作者:
Yeeles, Joseph T. P.
影响因子:
16
作者:
Costanzo, V;Shechter, D;Gautier, J
通讯作者:
Gautier, J