Friedrich Miescher Institute for Biomedical Research, Maulbeerstrasse 66, CH-4058 Basel, Switzerland.
Curr Opin Genet Dev. 2013 Apr;23(2):174-84. doi: 10.1016/j.gde.2012.12.008. Epub 2013 Jan 23.
ATP-dependent nucleosome remodelers use ATP hydrolysis to shift, evict and exchange histone dimers or octamers and have well-established roles in transcription. Earlier work has suggested a role for nucleosome remodelers such as INO80 in double-strand break (DSB) repair. This review will begin with an update on recent studies that explore how remodelers are recruited to DSBs. We then examine their impact on various steps of repair, focusing on resection and the formation of the Rad51-ssDNA nucleofilament. Finally, we will explore new studies that implicate remodelers in the physical movement of chromatin in response to damage.
ATP 依赖的核小体重塑酶利用 ATP 水解来移动、驱逐和交换组蛋白二聚体或八聚体,并在转录中具有明确的作用。早期的工作表明,核小体重塑酶如 INO80 在双链断裂 (DSB) 修复中发挥作用。这篇综述将首先介绍最近探索重塑酶如何被招募到 DSB 的研究进展。然后,我们将研究它们对修复各个步骤的影响,重点是核酸酶切和 Rad51-单链 DNA 核丝的形成。最后,我们将探讨新的研究,这些研究表明重塑酶在染色质对损伤的物理运动中起作用。