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DNA复制会招募一位“朋友”来克服艰难的“分手”。

DNA replication recruits a friend to overcome a challenging break-up.

作者信息

Dewar James M

机构信息

Vanderbilt University School of Medicine, Nashville, TN, USA.

出版信息

EMBO J. 2024 Sep;43(18):3815-3817. doi: 10.1038/s44318-024-00204-3. Epub 2024 Aug 21.

DOI:10.1038/s44318-024-00204-3
PMID:39169154
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11405838/
Abstract

Replication complexes, or replisomes, are removed from DNA upon completion of DNA synthesis, but the importance of replisome removal, as well as how cells might respond to defects in this process, has remained elusive. New work by Polo Rivera et al (2024) and Olson et al (2024) reveals that leftover replisomes are an obstacle to replication and provides a first glimpse into the biochemical mechanisms that solve this problem.

摘要

复制复合物,即复制体,在DNA合成完成后会从DNA上移除,但复制体移除的重要性以及细胞如何应对这一过程中的缺陷,一直难以捉摸。Polo Rivera等人(2024年)和Olson等人(2024年)的新研究揭示,残留的复制体是复制的障碍,并首次深入了解了解决这一问题的生化机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fec/11405838/c7a0f7768365/44318_2024_204_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fec/11405838/c7a0f7768365/44318_2024_204_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fec/11405838/c7a0f7768365/44318_2024_204_Fig1_HTML.jpg

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1
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2
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本文引用的文献

1
A common mechanism for recruiting the Rrm3 and RTEL1 accessory helicases to the eukaryotic replisome.一种将Rrm3和RTEL1辅助解旋酶招募到真核复制体的常见机制。
EMBO J. 2024 Sep;43(18):3846-3875. doi: 10.1038/s44318-024-00168-4. Epub 2024 Jul 22.
2
CMG helicase disassembly is essential and driven by two pathways in budding yeast.CMG 解旋酶的解体对于出芽酵母来说是必需的,并且由两条途径驱动。
EMBO J. 2024 Sep;43(18):3818-3845. doi: 10.1038/s44318-024-00161-x. Epub 2024 Jul 22.
3
RTEL1 and MCM10 overcome topological stress during vertebrate replication termination.
RTEL1 和 MCM10 克服脊椎动物复制终止过程中的拓扑学压力。
Cell Rep. 2023 Feb 28;42(2):112109. doi: 10.1016/j.celrep.2023.112109. Epub 2023 Feb 17.
4
Unscheduled DNA replication in G1 causes genome instability and damage signatures indicative of replication collisions.G1 期未计划的 DNA 复制会导致基因组不稳定,并产生表明复制冲突的损伤特征。
Nat Commun. 2022 Nov 18;13(1):7014. doi: 10.1038/s41467-022-34379-2.
5
A conserved mechanism for regulating replisome disassembly in eukaryotes.真核生物中调节复制体解体的保守机制。
Nature. 2021 Dec;600(7890):743-747. doi: 10.1038/s41586-021-04145-3. Epub 2021 Oct 26.
6
LRR1-mediated replisome disassembly promotes DNA replication by recycling replisome components.LRR1 介导的复制体解体通过循环利用复制体组件促进 DNA 复制。
J Cell Biol. 2021 Aug 2;220(8). doi: 10.1083/jcb.202009147. Epub 2021 May 26.
7
Pif1-Family Helicases Support Fork Convergence during DNA Replication Termination in Eukaryotes.Pif1 家族解旋酶在真核生物 DNA 复制终止过程中支持叉的收敛。
Mol Cell. 2019 Apr 18;74(2):231-244.e9. doi: 10.1016/j.molcel.2019.01.040. Epub 2019 Mar 5.
8
Mechanisms of DNA replication termination.DNA复制终止的机制。
Nat Rev Mol Cell Biol. 2017 Aug;18(8):507-516. doi: 10.1038/nrm.2017.42. Epub 2017 May 24.
9
Post-licensing Specification of Eukaryotic Replication Origins by Facilitated Mcm2-7 Sliding along DNA.通过Mcm2-7沿DNA的易化滑动对真核生物复制起点进行许可后规范
Mol Cell. 2015 Dec 3;60(5):797-807. doi: 10.1016/j.molcel.2015.10.022. Epub 2015 Nov 19.
10
The mechanism of DNA replication termination in vertebrates.脊椎动物中DNA复制终止的机制。
Nature. 2015 Sep 17;525(7569):345-50. doi: 10.1038/nature14887. Epub 2015 Aug 31.