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Optimizing Prime Editing in Zebrafish

delete2025-09-19
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PRE
AI
R
Rehman Basharat
G
Gina Rizzo
J
Josiah D. Zoodsma
L
Lonnie P. Wollmuth
H
Howard I. Sirotkin *
DOI:10.1177/25731599251380500delete
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摘要

摘要

En 中文
碱基编辑是一种基于规律成簇间隔短回文重复序列(CRISPR)的方法,能够实现精确的遗传修饰,包括错义突变,因此对于构建疾病模型具有重要价值。新型碱基编辑器(PE)变体在斑马鱼中的比较性能仍 largely unexplored。本研究中,我们系统评估了五种PE(PE2、PE6b、PE6c、PEmax和PE7)在斑马鱼中的效率。我们测试了编码这些PE的mRNA与设计用于引入五种错义突变的碱基编辑引导RNA(pegRNA)。在五个位点中的四个位点,多种PE实现了高效编辑。其中,PEmax在引入纯碱基编辑方面效率最高,编辑率可达15.34%。我们发现,阻断pegRNA 3′降解的策略(如epegRNA和使用添加La RNA结合基序的PE)并未改善本研究的实验效果。综合而言,这些发现确立了PEmax作为一种在斑马鱼中引入错义突变的可靠工具。

期刊

T
The CRISPR Journal
IF:
0
论文数:
7
被引数:
0

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引用论文

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