CircRM:从纳米孔直接RNA测序中分析循环RNA修饰的情况
Jiayi Li1,2,3, Shenglun Chen1,2,4, Zhixing Wu1,2,5,6
1Department of Biosciences and Bioinformatics, School of Science, Xi'an Jiaotong-Liverpool University, 111 Ren'ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China.
Briefings in bioinformatics
|January 13, 2026
概括
CircRM是一种新的计算工具,使用纳米孔测序对圆形RNA中的RNA修饰进行了分析. 它揭示了圆形RNA的独特修饰模式,与线性RNA不同.
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:
- 循环RNAs (circRNAs) 是关键的调节分子.
- RNA的修改显著影响circRNA的功能.
- 现有的方法缺乏解决 circRNA 修饰概况的解决方案.
研究的目的:
- 开发一种计算方法来分析circRNAs中的RNA修饰.
- 在单分子分辨率下描述circRNAs的表体转录图形.
- 为了确定circRNA特定的修饰模式和特征.
主要方法:
- 开发了CircRM,一种利用纳米孔直接RNA测序的计算工具.
- 集成的circRNA检测,读取级别修改检测和甲基化速率量化.
- 应用CircRM来对circRNAs中的三个主要RNA修饰 (m5C,m6A,m1A) 进行分析.
主要成果:
- 确定了427个高可信度circRNA,并表征了m5C,m6A和m1A的修饰.
- 与线性RNA相比,在circRNA中揭示了明显的修改模式,在背接接口附近进行丰富.
- 在不同细胞系中展示了保存和细胞类型特定的修饰模式.
结论:
- CircRM为研究circRNA修饰提供了一种强大的计算方法.
- 循环RNA具有独特的表体转录学格局,具有特定于RNA类型的规则.
- 这些发现有助于进一步了解循环RNA生物学和RNA修饰机制.
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