有效的CRISPR/Cas9中介大型插入使用长单链寡核酸捐赠体在C. elegans中

有效的CRISPR/Cas9中介大型插入使用长单链寡核酸捐赠体在C. elegans中

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Updated: Jul 28, 2025

CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.

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CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.

Published on: December 11, 2020

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Matthew Eroglu^1,2, Bin Yu¹, W Brent Derry^1,2

¹Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Canada.

The FEBS journal

|May 31, 2023

概括

这项研究简化了在Caenorhabditis elegans中用于CRISPR/Cas9基因组编辑的长单链DNA (ssDNA) 的创建. 新方法显著提高了插入大型DNA序列的效率,克服了以前的局限性.

科学领域:

分子生物学分子生物学
遗传学是一个遗传学.
生物技术是生物技术.

背景情况:

克里斯普尔/Cas9能够精确地对Caenorhabditis elegans进行基因组编辑.
使用单链寡核酸捐赠体插入大型DNA序列 (例如光标记物) 是一个挑战.
目前准备长ssDNA捐赠者的方法效率低下,劳动密集.

研究的目的:

为CRISPR/Cas9基因组编辑生成长单链DNA (ssDNA) 捐赠者开发一种简化和高效的方法.
为了提高将大型DNA序列插入C. elegans基因组的效率.
为产生长 ssDNA 捐赠者提供标准化和劳动最小化的协议.

主要方法:

使用标准的聚合酶链反应 (PCR),然后进行兰巴外核酶消化,生成长ssDNA.
对长ssDNA捐赠者的效率与双链DNA (dsDNA) 捐赠者的效率进行了比较,用于大序列插入.
证明了同时执行多个大型插入的能力.

主要成果:

快速高效地获得长 ssDNA 捐赠者的高产量.
与dsDNA捐赠者相比,ssDNA捐赠者表现出数量级更高的插入频率.
在不需要选择或共同CRISPR标记器的情况下成功生成了大型插入.

结论:

开发的方法简化了在C. elegans中为CRISPR/Cas9生成长ssDNA捐赠者.
这种方法显著提高了插入大型DNA序列的效率,使复杂的基因组修改成为可能.
该协议是标准化的,劳动力最小的,并扩展了C. elegans研究的CRISPR/Cas9工具包.

关键词:

这就是CRISPR/Cas9的作用.凯诺哈比迪斯的优雅的植物.羊羔外核酶是什么意思大大的插入.这就是 ssDNADNA.

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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...

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