相关实验视频

Updated: Jan 9, 2026

Identification of Circular RNAs using RNA Sequencing

Identification of Circular RNAs using RNA Sequencing

Published on: November 14, 2019

从复杂的滚动圆形长读数中精确重建圆形RNA,使用CircPlex

Tasfia Zahin¹, Irtesam Mahmud Khan¹, Mingfu Shao^1,2

¹Department of Computer Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA.

bioRxiv : the preprint server for biology

|December 3, 2025

概括

一种名为CircPlex的新方法,可以从长时间读取的测序数据中准确识别全长的圆形RNA (circRNAs). 它克服了以前导致假阳性的复杂重复模式,改善了circRNA检测灵敏度.

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) 是重要的调节分子.
使用滚动圆放大 (RCA) 的长读序列是检测circRNAs的一个关键方法.
对RCA读数的标准分析可以被复杂的重复模式所混.

研究的目的:

开发一种新的计算方法,准确识别来自RCA的真实circRNA序列.
解决RCA数据中复杂的重复模式的挑战,这可能导致circRNAs的错误识别.
为了提高circRNA检测的灵敏度和全面性.

主要方法:

开发CircPlex算法,从复杂的重复单元中提取真正的circRNA序列.
通过RCA和长读序列生成的长读数的分析.
将CircPlex结果与现有的注释工具 (isoCirc) 和circRNA数据库进行比较.

主要成果:

确定了很大一部分具有复杂重复模式的长读数,包括反向补充.
CircPlex成功提取了真实的circRNA序列,克服了标准共识预测的局限性.
恢复了大量以前被忽视的背接接口 (BSJs) 和全长circRNA序列.

结论:

通过准确解释复杂的读取模式,CircPlex提高了circRNAs的检测.
从基于RCA的测序中利用部分重复的读数显著增加了circRNA的发现.
这种方法为循环转录组提供了更全面的视图,揭示了新型异构体.

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Use of Alu Element Containing Minigenes to Analyze Circular RNAs

Use of Alu Element Containing Minigenes to Analyze Circular RNAs

Published on: March 10, 2020

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