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相关概念视频

CRISPR01:59

CRISPR

52.3K
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...
52.3K
CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

49
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...
49
CRISPR and crRNAs02:53

CRISPR and crRNAs

17.1K
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...
17.1K

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相关实验视频

Updated: Jul 17, 2025

Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a
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Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a

Published on: December 23, 2022

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用CRISPR-Cas12a进行可编程RNA检测

Santosh R Rananaware1, Emma K Vesco1,2, Grace M Shoemaker1

  • 1Department of Chemical Engineering, University of Florida, Gainesville, FL, USA.

Nature communications
|September 5, 2023
PubMed
概括
此摘要是机器生成的。

高度可访问RNA分析的分割激活器 (SAHARA) 使用Cas12a进行敏感RNA检测而无需放大. 这种基于CRISPR-Cas12a的平台为核酸分析提供了高特异性和多重复合能力.

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Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases
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Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases

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DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning
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DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning

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相关实验视频

Last Updated: Jul 17, 2025

Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a
09:03

Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a

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Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases
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Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases

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DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning
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DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning

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科学领域:

  • 分子生物学分子生物学
  • 生物技术是生物技术.
  • 遗传学 遗传学 是一个

背景情况:

  • CRISPR-Cas12a是一种用于诊断的DNA分裂酶.
  • 通过分裂激活剂可以激活Cas12a的跨裂变活性.
  • 目前的RNA检测方法通常需要放大或反转录.

研究的目的:

  • 开发一种基于CRISPR-Cas12a的新方法,用于直接检测RNA.
  • 为了提高Cas12a的特异性和复合能力,用于核酸分析.
  • 创建一个敏感的诊断工具来检测RNA,而不需要复杂的样本准备.

主要方法:

  • 使用分裂激活器,使Cas12a在RNA点上的跨裂变成为可能.
  • 开发了高可访问性RNA分析 (SAHARA) 分割激活器方法.
  • 设计的crRNAs具有特定的PAM-近端种子区域用于DNA向.

主要成果:

  • 萨哈拉检测到RNA的皮科莫拉度,没有放大或反转录.
  • 与野生型Cas12a相比,该方法对点突变具有更强的特异性.
  • 萨哈拉允许使用聚合crRNA/Cas12a数组对多个RNA和DNA点进行多重检测.

结论:

  • 萨哈拉是一个基于Cas12a的简单而强大的核酸检测平台.
  • 该平台为RNA和DNA分析提供高灵敏度,特异性和复杂化潜力.
  • 萨哈拉可以扩展到其他CRISPR-Cas酶,并在各种诊断环境中应用.