Dividing the workload at a eukaryotic replication fork.

Dividing the workload at a eukaryotic replication fork.
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DOI:
10.1016/j.tcb.2008.08.005
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发表时间:
2008-11
影响因子:
19
通讯作者:
Burgers, Peter M.
Burgers, Peter M.
中科院分区:
生物学1区
文献类型:
--
作者:
Kunkel, Thomas A.;Burgers, Peter M.

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真核核基因组的有效复制需要DNA聚合酶(POLS)α,δ和ε在所有当前的复制叉模型中。随后的链条伸长和这两个聚合酶之间的劳动分裂仍不清楚,考虑到诊断突变器聚合酶的最新研究,我们重新审视了这个问题。该模型主要负责复制前链模板的主要负责,而POLδ是主要负责复制滞后链模板的主要负责人。这种简单的劳动分工的变化。
Efficient and accurate replication of the eukaryotic nuclear genome requires DNA polymerases (Pols) α, δ and ε. In all current replication fork models, polymerase α initiates replication. However, several models have been proposed for the roles of Pol δ and Pol ε in subsequent chain elongation and the division of labor between these two polymerases is still unclear. Here, we revisit this issue, considering recent studies with diagnostic mutator polymerases that support a model wherein Pol ε is primarily responsible for copying the leading-strand template and Pol δ is primarily responsible for copying the lagging-strand template. We also review earlier studies in light of this model and then consider prospects for future investigations of possible variations on this simple division of labor.
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