WITHDRAWN: Strand dependent bypass of DNA lesions during fork reversal by ATP-dependent translocases SMARCAL1, ZRANB3, and HLTF.

Madison B Adolph, Garrett M Warren, Frank B Couch, Briana H Greer, Brandt F Eichman, David Cortez
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引用次数: 0

Abstract

The authors have withdrawn this manuscript because they identified problems with how some figure panels were processed. Those experiments will be repeated before deposition of a new manuscript. Therefore, the authors do not wish this work to be cited as reference for the project. If you have any questions, please contact the corresponding authors.

ATP依赖性转运酶SMARCAL1、ZRANB3和HLTF在分叉逆转过程中绕过DNA损伤的链依赖性。
在 DNA 复制过程中,复制体会遇到各种障碍,包括 DNA 损伤、转录-复制冲突以及其他复制压力源。必须有效克服这些障碍,才能完成 DNA 合成,并将基因组的不稳定性降至最低。耐受复制压力的途径之一是复制叉逆转,在这一过程中,亲代模板 DNA 链重新接合,并形成新生-新生 DNA 双链。有几种酶能促进复制叉逆转,包括依赖 ATP 的转位酶 SMARCAL1、ZRANB3 和 HLTF。这些酶如何在含有分叉分离病变的 DNA 上进行转位尚不清楚。在这里,我们研究了 SMARCAL1、ZRANB3 和 HLTF 对前导或滞后模板链上各种病变的耐受能力。我们证明,SMARCAL1 和 ZRANB3 会选择性地抑制前导模板链上的病变,而 HLTF 对任一模板链上的大块病变都不敏感。这些结果表明,在分叉逆转过程中,SMARCAL1 和 ZRANB3 与前导链接触,因此对该链上大块病变的抑制更敏感。相比之下,HLTF DNA 易位对 DNA 损伤不敏感。叉形反转酶之间的这些生化差异使人们对它们的DNA重塑机制有了更深入的了解,并表明它们可能在特异性病变环境中发挥作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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