Eukaryotic DNA Replication Fork.
Eukaryotic DNA Replication Fork.
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DOI:
10.1146/annurev-biochem-061516-044709
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发表时间:
2017-06-20
影响因子:
16.6
通讯作者:
Kunkel TA
中科院分区:
文献类型:
--
作者:
Burgers PMJ;Kunkel TA
This review focuses on the biogenesis and composition of the eukaryotic DNA replication fork, with an emphasis on the enzymes that synthesize DNA and repair discontinuities on the lagging strand of the replication fork. Physical and genetic methodologies aimed at understanding these processes are discussed. The preponderance of evidence supports a model in which DNA polymerase ε (Pol ε) carries out the bulk of leading strand DNA synthesis at an undisturbed replication fork. DNA polymerases α and β carry out the initiation of Okazaki fragment synthesis and its elongation and maturation, respectively. This review also discusses alternative proposals, including cellular processes during which alternative forks may be utilized, and new biochemical studies with purified proteins that are aimed at reconstituting leading and lagging strand DNA synthesis separately and as an integrated replication fork.
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