Single molecule techniques in DNA repair: a primer.

Single molecule techniques in DNA repair: a primer.
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DOI:
10.1016/j.dnarep.2014.02.003
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发表时间:
2014-08
期刊:
影响因子:
3.8
通讯作者:
Kad, Neil M.
Kad, Neil M.
中科院分区:
医学3区
文献类型:
--
作者:
Hughes, Craig D.;Simons, Michelle;Mackenzie, Cassidy E.;Van Houten, Bennett;Kad, Neil M.

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一种强大的新方法已经变得更加广泛,并提供了对数十亿分子无法实现的DNA修复方面的见解。单分子技术可用于成像、操纵或表征单个修复蛋白对单链DNA的作用。这使得搜索机制得以探索,并理解力的影响。这些物理方面可以主导生化反应,在整体水平上,它们的细微差别被掩盖了。在本文中,我们讨论了许多技术进步,允许在单分子水平上的研究。我们专注于DNA修复,这些技术正在积极应用。DNA修复也是一个过程,它包含了单分子研究所带来的诸多益处--寻找靶点、复合物形成、顺序生化反应和底物传递,仅举几例。我们讨论了单分子生物物理学如何改变我们对生物系统的理解,特别是DNA修复。
A powerful new approach has become much more widespread and offers insights into aspects of DNA repair unattainable with billions of molecules. Single molecule techniques can be used to image, manipulate or characterize the action of a single repair protein on a single strand of DNA. This allows search mechanisms to be probed, and the effects of force to be understood. These physical aspects can dominate a biochemical reaction, where at the ensemble level their nuances are obscured. In this paper we discuss some of the many technical advances that permit study at the single molecule level. We focus on DNA repair to which these techniques are actively being applied. DNA repair is also a process that encompasses so much of what single molecule studies benefit – searching for targets, complex formation, sequential biochemical reactions and substrate hand-off to name just a few. We discuss how single molecule biophysics is poised to transform our understanding of biological systems, in particular DNA repair.
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