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相关概念视频

CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

227
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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CRISPR and crRNAs02:53

CRISPR and crRNAs

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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
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相关实验视频

Updated: Sep 12, 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 RiPCA用于调查eIF4E-m7GpppX封顶的mRNA相互作用

Gabriela Vega-Hernández1, Jesse Duque2, Brandon J C Klein3

  • 1Program in Chemical Biology, University of Michigan, Ann Arbor, Michigan 48109, United States.

ACS chemical biology
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概括

研究人员开发了CRISPR RiPCA,这是研究活细胞中的RNA-蛋白相互作用的新平台. 该工具测量了向真核转化启动因子4E (eIF4E) 相互作用的癌症药物抑制剂的活性.

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科学领域:

  • 分子生物学分子生物学
  • 生物化学 生物化学
  • 基因组学就是基因组学.

背景情况:

  • 转录后的mRNA修饰是由读者RNA结合蛋白 (RBPs) 调节的.
  • RBPs的失调与癌症,神经退行和病毒感染等疾病有关.
  • 向RBP提供了一个恢复细胞功能的治疗策略.

研究的目的:

  • 开发一种用于活细胞测量RNA-蛋白相互作用 (RPI) 的新平台.
  • 使用真核细胞翻译启动因子4E (eIF4E) 与其RNA基质之间的相互作用来验证平台.
  • 为了证明平台在评估候选药物的有效性方面的实用性.

主要方法:

  • 将CRISPR技术与RNA相互作用与蛋白介导补充试验 (RiPCA) 结合起来.
  • 建立一种名为CRISPR RiPCA的活细胞RPI试验.
  • 使用eIF4E和m7G封顶RNA相互作用作为模型系统.

主要成果:

  • 证明了CRISPR RiPCA平台的成功开发.
  • 展示了CRISPR RiPCA测量eIF4E抑制剂的目标活性的能力.
  • 验证了平台在癌症药物发现方面的潜力.

结论:

  • 克里斯普尔RiPCA是一种强大的新工具,用于研究活细胞中的RPI.
  • 该平台可以评估针对RBPs的治疗干预措施.
  • 这项技术有望促进瘤学和其他RBP失调疾病的药物发现.