对共转录RNA折叠中间体进行序列结构探测
Courtney E Szyjka1, Skyler L Kelly1, Eric J Strobel1
1Department of Biological Sciences, The University at Buffalo, Buffalo, NY 14260, USA.
bioRxiv : the preprint server for biology
|October 28, 2024
概括
我们开发了一种新方法,TECprobe-LM,可以在转录过程中直接观察RNA折叠. 这种技术跟踪RNA结构的重排随着新核酸的添加,提供了更清晰的共转录RNA折叠路径的视图.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 在RNA生物学,RNA生物学.
背景情况:
- 共转录RNA折叠对于基因调节和功能至关重要.
- 目前的方法推断RNA结构的重排间接地从停止的转录复合体.
- 在延长过程中缺乏动态RNA折叠的直接评估.
研究的目的:
- 开发和验证一种用于直接探测协转录RNA结构重组的新方法.
- 克服现有技术在评估动态RNA折叠方面的局限性.
- 为详细分析发生的RNA折叠路径提供一个工具.
主要方法:
- 开发了链接的多点转录延长复杂RNA结构探测 (TECprobe-LM).
- 序列定位的RNA聚合酶 (RNAP) 在DNA模板上的多个位点.
- 在转录过程中在定义的位置应用化学探测到新生的RNA.
主要成果:
- TECprobe-LM直接评估共转录RNA结构的重排.
- 使用已知的折叠事件验证了E. coli SRP RNA,C. beijerinckii pfl ZTP рибо开关和B. cereus crcB化物 рибо开关中的方法.
- 证明了在RNA合成过程中检测动态结构变化的能力.
结论:
- TECprobe-LM是一种强大的新策略,用于直接研究共转录RNA折叠.
- 该方法可以在转录过程中直接观察RNA结构动态.
- 这种技术有助于对RNA折叠路径及其调节的理解.
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