使用编程cDNA连接的高通量RNA异型序列测序
Aziz M Al'Khafaji1, Jonathan T Smith2, Kiran V Garimella3
1Broad Institute of MIT and Harvard, Cambridge, MA, USA. aalkhafa@broadinstitute.org.
Nature biotechnology
|June 8, 2023
概括
多复数数组异形测序 (MAS-ISO-seq) 将长读测序的吞吐量提高了15倍以上. 这一进步显著提高了在单细胞研究中发现差异拼接基因的发现.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 长读RNA测序捕获完整的转录异型,但其吞吐量较低.
- 有限的吞吐量阻碍了对转录组复杂性的全面分析.
研究的目的:
- 引入多重复数组异形序列 (MAS-ISO-seq) 来提高长读序列的吞吐量.
- 提高全长转录异形测序的效率.
主要方法:
- 开发了MAS-ISO-seq用于可编程互补DNA (cDNA) 的连接.
- 在Sequel IIe平台上优化了cDNA分子以实现高通量长读测序.
- 应用MAS-ISO-seq对瘤透T细胞的单细胞RNA测序.
主要成果:
- 实现了超过15倍的吞吐量增加,每次运行产生近4000万个cDNA读数.
- 发现差异拼接基因的发现率增加了12到32倍.
- MAS-ISO-seq显著扩大了异构体测序的范围.
结论:
- MAS-ISO-seq克服了现有的长读RNA测序方法的吞吐量限制.
- 该技术大大改善了转录异形和替代拼接事件的发现.
- MAS-ISO-seq是用于高分辨率转录组分析的强大工具,特别是在复杂的生物系统中.
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