通过SpliceosomeProfiling对功能性内基因组进行全转录组查询
Weijun Chen1, Jill Moore2, Hakan Ozadam3
1RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA 01655, USA; Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01655, USA.
Cell
|May 5, 2018
概括
一种新的方法 - - 拼基基因组分析 - - 识别了新的内基因,并提高了对RNA处理的理解. 这种技术对结合体结合的RNA进行测序,比传统的RNA测序更多地揭示了内部切除.
科学领域:
- 分子生物学
- 基因组学
- 核糖核酸生物学
背景情况:
- 细胞转录组的复杂性需要了解所有内核切除部位.
- 由于快速衰变,RNA测序 (RNA-seq) 受到拼接转录的少量限制.
- 对RNA处理的全面了解需要超出标准RNA-seq的方法.
研究的目的:
- 介绍结合体分析,这是一种与晚期结合体相关的RNA深度测序的新策略.
- 为了实现内部端的高分辨率映射和分支点的识别.
- 扩大已知的拼接RNA物种,提高注释准确度.
主要方法:
- 通过深度测序RNA与晚期spliceosome共同净化,开发了"拼接体概况".
- 应用该方法来研究S. pombe的内部切除.
- 实现单核酸分辨率用于内部端映射和分支点识别.
主要成果:
- 在S. pombe中发现了数百个以前未知的内核.
- 纠正了许多之前错误注释的内语.
- 展示了结合酶组合和催化深度探究的结合酶造型的力量.
结论:
- 拼基基因组分析为分析RNA处理提供了前所未有的深度.
- 该技术显著增强了新型内核的发现,并改善了转录注释.
- 这种方法将彻底改变核RNA处理的研究,类似于核糖体分析对翻译研究的影响.
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