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相关概念视频

DNA Isolation01:24

DNA Isolation

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DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...
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相关实验视频

Updated: Jun 5, 2025

Automated Robotic Liquid Handling Assembly of Modular DNA Devices
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RH2Fusion:用于精确组装DNA片段的通用工具.

Benchao Liu1, Junru Zhao1, Hui Chen1

  • 1State Key Laboratory of Cellular Stress Biology, Innovation Centre for Cell Signalling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.

International journal of biological macromolecules
|December 15, 2024
PubMed
概括

RNase HII融合 (RH2Fusion) 可实现无痕DNA组装,具有用户定义的粘性末端和多个位点定向的突变发生. 这种新型系统利用特定的酶活性来有效地连接和修改DNA片段,推进分子生物学研究.

关键词:
DNA组装组件的组装分子克隆是一种分子克隆.这就是RH2Fusion.这就是RNase HII.核糖核酸酶是一种核糖核酸酶.在 YgdGG 的位置上.

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科学领域:

  • 分子生物学分子生物学
  • 合成生物学 合成生物学
  • 基因工程是一种基因工程.

背景情况:

  • 限制酶 (RE) 介导的裂变是DNA组装的标准,但具有局限性.
  • 为DNA组装生成粘性末端对于分子生物学技术至关重要.

研究的目的:

  • 推出RNase HII融合 (RH2Fusion),这是一个用于无痕DNA组装的新系统.
  • 为了使用户定义的粘性末端和同时的部位定向突变发生 (SDM).

主要方法:

  • 在RH2Fusion中使用RNase HII和大肠杆菌外核酶IX (YgdG) 来处理DNA片段.
  • 在体内,经RNase HII处理以进行重组后, ribonucleotide修饰的DNA片段形成3'突起.
  • 在体外,RNase HII和YgdG产生由YgdG和T4DNA结合酶处理的突起.

主要成果:

  • 通过RH2Fusion,可以无痕地组装多个DNA片段.
  • 在多个位点同时进行位点定向突变发生 (SDM) 是可以实现的.
  • 大肠杆菌外核酶IX (YgdG) 显示出特定的核核酶活性.

结论:

  • RH2Fusion为DNA组装提供了一个快速,有效和多功能的替代方案.
  • 该系统增强了合成生物学和基因工程中的DNA操纵能力.
  • 该工具通过改进DNA组装和修改技术,推动了分子生物学研究.