Dynamics of human replication factors in the elongation phase of DNA replication.
Dynamics of human replication factors in the elongation phase of DNA replication.
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DOI:
10.1093/nar/gkm822
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发表时间:
2007
影响因子:
14.9
通讯作者:
Kamiya K
中科院分区:
文献类型:
--
作者:
Masuda Y;Suzuki M;Piao J;Gu Y;Tsurimoto T;Kamiya K
In eukaryotic cells, DNA replication is carried out by coordinated actions of many proteins, including DNA polymerase δ (pol δ), replication factor C (RFC), proliferating cell nuclear antigen (PCNA) and replication protein A. Here we describe dynamic properties of these proteins in the elongation step on a single-stranded M13 template, providing evidence that pol δ has a distributive nature over the 7 kb of the M13 template, repeating a frequent dissociation–association cycle at growing 3′-hydroxyl ends. Some PCNA could remain at the primer terminus during this cycle, while the remainder slides out of the primer terminus or is unloaded once pol δ has dissociated. RFC remains around the primer terminus through the elongation phase, and could probably hold PCNA from which pol δ has detached, or reload PCNA from solution to restart DNA synthesis. Furthermore, we suggest that a subunit of pol δ, POLD3, plays a crucial role in the efficient recycling of PCNA during dissociation–association cycles of pol δ. Based on these observations, we propose a model for dynamic processes in elongation complexes.
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DOI:
10.1073/pnas.93.23.12896
发表时间:
1996-11-12
影响因子:
11.1
作者:
Cai, JS;Uhlmann, F;Hurwitz, J
通讯作者:
Hurwitz, J
影响因子:
64.8
作者:
BRAVO, R;FRANK, R;MACDONALDBRAVO, H
通讯作者:
MACDONALDBRAVO, H
影响因子:
64.5
作者:
KRISHNA, TSR;KONG, XP;KURIYAN, J
通讯作者:
KURIYAN, J
影响因子:
4.8
作者:
Bermudez, VP;MacNeill, SA;Hurwitz, J
通讯作者:
Hurwitz, J
影响因子:
2.9
作者:
McConnell, M;Miller, H;Fisher, PA
通讯作者:
Fisher, PA