通过统一的计算和实验工具箱,通过Cas13d介导的异形特异性RNA敲除
Megan D Schertzer1,2, Andrew Stirn1,2, Keren Isaev1,3
1New York Genome Center, New York, NY.
bioRxiv : the preprint server for biology
|September 25, 2023
概括
这项研究引入了一种新的CRISPR/Cas13dRNA向策略,专门调节RNA异型. 这种方法可以精确控制功能研究的基因表达,从而提高我们对蛋白质多样性的理解.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学是一种遗传学.
- 生物信息学是一种生物信息学.
背景情况:
- 替代拼接产生了具有不同功能的多样化蛋白质异型.
- 特定表达式调制和实验设计的有限方法阻碍了对异形函数的表征.
- RNA异型在细胞功能和疾病中起着至关重要的作用.
研究的目的:
- 开发和验证一种新的战略,用于对RNA异型表达的具体和有效调制.
- 为特定异形体的研究提供支持实验设计和分析的计算工具.
- 评估开发战略的潜力,以准大量的人类RNA异型.
主要方法:
- 利用向RNA的CRISPR/Cas13d系统,引导RNA向外因子-外因子结.
- 进行了高通量基本性选,定量RT-PCR和PacBio长读测序.
- 开发了用于实验设计和分析RNA异形调制屏幕的计算工具.
主要成果:
- 使用CRISPR/Cas13d结点为中心的策略,证明了单个RNA异型的特定和强大的敲除.
- 通过多种实验方法验证了该方法的有效性.
- 估计该策略可以单独针对高达89%的人类RNA异型,包括蛋白质编码和lncRNA异型.
结论:
- 开发的基于CRISPR/Cas13d的集结中心策略为特定RNA异形调制提供了一个强大的工具.
- 这种方法克服了研究异形函数的关键挑战,并为转录基因研究提供了可扩展的解决方案.
- 该方法在各种拼接事件中的高准效率显著推进了功能基因组学领域.
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