从总RNA中对活性RNA聚合酶II转录起点进行分析,采用封闭小RNA测序 (csRNA-seq) 方法
Mackenzie K Meyer1, Oluwadamilola J Olanrewaju1, Patricia Montilla-Perez2
1School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, USA.
Nature protocols
|January 15, 2026
概括
封闭式小RNA测序 (csRNA-seq) 映射了活性RNA聚合酶II转录启动,以获得基因表达的动态视图. 这种方法捕获了各种RNA转录,揭示了基因调节和调节元件的功能.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 基因规则 基因规则
背景情况:
- 了解基因表达需要对RNA聚合酶II转录启动的动态映射.
- 识别RNA转录的全谱,包括稳定的mRNA和暂时增强型RNA,对于基因调节研究至关重要.
研究的目的:
- 介绍一个详细的协议,以限制小RNA测序 (csRNA-seq).
- 为了使活跃转录启动和cis-regulatory元素的高分辨率映射.
- 促进对基因调节和转录动态的研究.
主要方法:
- 从各种样本类型 (新鲜,冷,固定细胞,组织,患者样本) 中分离总RNA.
- 选择性丰富5'-封顶RNA聚合酶II转录.
- 图书馆生成和测序用于高分辨率数据分析.
主要成果:
- csRNA-seq捕获启动稳定RNAs (mRNAs,非编码RNAs) 和短暂的转录 (增强RNAs,促进RNAs).
- 提供了积极的cis-regulatory元素及其属性的全面快照.
- 证明了样本采集和处理的脱,广泛的样本兼容性和可扩展性.
结论:
- csRNA-seq提供了一种敏感的,高分辨率的方法来研究新生的转录和基因调节.
- 该协议可供研究人员使用,研究人员具有最小的新兴转录学经验.
- 允许在标准实验室条件下对临床或病原体样本进行安全分析.
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