【24h】

One-base-pair Localization of Nucleosomes

机译:一碱基对核心定位

获取原文

摘要

Nucleosome position plays a key role in eukaryotic gene regulation, and its precise measurement is critical to understanding all DNA-templated events, but insufficient information has been available to infer nucleosome position at single-base-pair (1-bp) resolution. Brogaard et al. therefore developed an in vivo nucleosome-mapping method, based on the direct incorporation of a label into the nucleosome core, that generates hydroxyl radicals that cleave nucleosomal DNA at defined positions. This method allows direct measurement of nucleosome position with unmatched accuracy. Here we present a new algorithm that uses the Brogaard et al. data to achieve 1-bp resolution by using a joint cleavage pattern of radicals on Watson and Crick strands and can localize nucleosomes that are adjacent to each other. This algorithm provides the highest-resolution nucleosome-position maps to date and will allow detailed analysis of chromatin organization and protein-interaction dynamics.
机译:核心位置在真核基因调节中起关键作用,其精确测量对于了解所有DNA模板事件至关重要,但信息不足可用于在单碱基对(1-BP)分辨率下介断核心位置。 Brogaard等人。因此,基于将标签的直接掺入核心核心的基于核心核心的体内核微粒作图方法,产生羟基自由基,其在定义位置处切割核体DNA。该方法允许以无与伦比的准确度直接测量核心位置。在这里,我们提出了一种使用Brogaard等人的新算法。通过在Watson和Cricks上使用基团的联合切割模式实现1-BP分辨率的数据,并且可以定位彼此相邻的核体。该算法迄今为止提供最高分辨率的核小体 - 定位图,并允许对染色质组织和蛋白质相互作用动态进行详细分析。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号