检测-seq,一种化学标记和生物素下拉方法,用于对可编程细胞因子基编辑器的无偏和全基因组非目标评估
Zhixin Lei1,2, Haowei Meng3, Xichen Rao3
1Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
Nature protocols
|June 5, 2023
概括
检测-seq是一种敏感的方法,通过追踪 uracil 中介来评估细胞酸基编辑器的非目标效应. 这种无偏见的方法提供了高信号对噪声的准确基因组编辑分析.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 生物技术是生物技术.
背景情况:
- 细胞酶基编辑器为纠正遗传突变提供了潜在的可能性.
- 脱位突变对基准编辑器的安全性和有效性是一个重大问题.
- 准确评估基编辑器的目标外影响对于治疗开发至关重要.
研究的目的:
- 介绍Detect-seq,这是一种用于对可编程细胞氨基基基编辑器进行无偏见和敏感的目标外评估的新方法.
- 为Detect-seq实验提供详细的协议和生物信息管道.
- 建立一种灵敏,高信号对噪声的方法,用于独立于高测序深度的目标外分析.
主要方法:
- 检测-seq 痕迹 uracil (dU) 中介物引入细胞并由基数编辑器编辑.
- 基因组DNA是通过化学和酶反应提取,处理和标记的.
- 生物素下拉式丰富含乌拉的DNA位点,用于随后的测序.
主要成果:
- Detect-seq提供了对基准编辑器目标之外活动的公正和敏感评估.
- 该方法由于其丰富策略,实现了高的信号噪声比.
- 检测-seq不需要深度测序,适用于线粒体和后线粒体系统.
结论:
- Detect-seq是一个强大而灵敏的工具,用于评估细胞因子基编辑器的非目标效应.
- 提供的协议和管道有助于Detect-seq在各种生物系统中的应用.
- 这种方法提高了基因组编辑技术的安全性评估.
相关概念视频
Labeling DNA Probes
DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Maxam-Gilbert Sequencing
In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
Challenges of the Maxam-Gilbert Method
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