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相关概念视频

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DNA replication is a well-evolved process that copies millions of base pairs with high fidelity during each cell division. Occasionally a wrong base or a long stretch of wrong bases may get added to the daughter strands. If the errors are left unchecked, cells might accumulate several mutations that might endanger their  survival. Therefore, the copying errors are checked and repaired at three levels.
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Rare Event Detection Using Error-corrected DNA and RNA Sequencing
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在双重测序数据中改进突变检测,采用样本特定错误配置文件.

Yuhe Cheng1,2,3, Shuvro P Nandi1,2,3, Luka Culibrk4

  • 1Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA.

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概括
此摘要是机器生成的。

杜普卡勒增强了双重测序中的体质突变检测. 这种新的变异呼叫器可以提高不同样本和条件的灵敏度和可比性.

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科学领域:

  • 基因组学就是基因组学.
  • 计算生物学 计算生物学
  • 分子生物学分子生物学

背景情况:

  • 双重测序为罕见的体质突变检测提供了高准确度.
  • 由于协议特定的启发式,现有的变异调用器在灵敏度,可重现性和交叉研究可比性方面面临限制.

研究的目的:

  • 介绍DupCaller,一个用于双重测序数据的新型概率变异调用器.
  • 改进罕见的体突变的检测,包括单基替代 (SBSs) 和indels.

主要方法:

  • 开发DupCaller,一个概率变体调用器.
  • 建立特定样本的错误档案.
  • 对于突变检测的链意识统计模型的应用.

主要成果:

  • 杜普卡勒在合成数据集上发现了1.25倍多的SBS和1.41倍多的INDEL,比使用最先进的方法对合成数据集的精度相似或更高.
  • 在阿里斯托洛希酸处理的细胞系中,DupCaller检测到3.5倍多的SBS和2.8倍多的indels,恢复了预期的突变特征.
  • 在93个不同的组织样本中,DupCaller始终检测到1.21至2.7倍多的突变,灵敏度随样本重复率而变化.

结论:

  • 杜普卡勒建立了一个强大的和可扩展的解决方案,用于使用双重测序对体突变进行分析.
  • 该工具在各种生物和技术环境中展示了一致的性能增长.
  • DupCaller增强了突变检测,特别是在低重复样本中,其他工具可能会失败.