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相关概念视频

CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

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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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CRISPR01:59

CRISPR

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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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.
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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.

Matthew Eroglu1,2, Bin Yu1, W Brent Derry1,2

  • 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
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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.

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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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.