期刊
CURRENT BIOLOGY
卷 26, 期 6, 页码 R247-R256出版社
CELL PRESS
DOI: 10.1016/j.cub.2016.02.034
关键词
-
资金
- US National Institutes of Health [GM111472, OD12272, GM115809]
- Howard Hughes Medical Institute
The machinery at the eukaryotic replication fork has seen many new structural advances using electron microscopy and crystallography. Recent structures of eukaryotic replisome components include the Mcm2-7 complex, the CMG helicase, DNA polymerases, a Ctf4 trimer hub and the first look at a core replisome of 20 different proteins containing the helicase, primase, leading polymerase and a lagging strand polymerase. The eukaryotic core replisome shows an unanticipated architecture, with one polymerase sitting above the helicase and the other below. Additionally, structures of Mcm2 bound to an H3/H4 tetramer suggest a direct role of the replisome in handling nucleosomes, which are important to DNA organization and gene regulation. This review provides a summary of some of the many recent advances in the structure of the eukaryotic replisome.
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