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相关概念视频

Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
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Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
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The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
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Recombineering Homologous Recombination Constructs in Drosophila
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无细胞复合酶集成的布尔输出系统.

Jingyao Chen1, Aviva Borison1, Douglas Densmore2

  • 1Department of Biomedical Engineering, Boston University, Boston, MA, USA.

Cell systems
|September 24, 2025
PubMed
概括
此摘要是机器生成的。

我们开发了一个无细胞复合酶集成的布尔输出系统 (CRIBOS) 用于多重遗传电路. 这种便携式系统能够稳定地存储超过四个月的DNA信息,从而推进生物计算和生物制造应用.

关键词:
布尔式 布尔式 是一个布尔式.性转录因子的转录因子生物计算是生物计算的方法.没有细胞的细胞.环境传感 环境传感遗传电路是一个遗传电路.合成生物学 合成生物学

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相关实验视频

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科学领域:

  • 合成生物学 合成生物学
  • 生物技术是生物技术.
  • 基因工程是一种基因工程.

背景情况:

  • 无细胞基因表达系统对于研究和生物制造至关重要.
  • 现有的系统在复杂的遗传电路设计和可移植性方面存在局限性.

研究的目的:

  • 引入无细胞复合酶集成布尔输出系统 (CRIBOS).
  • 为了证明CRIBOS在无细胞环境中构建多重遗传电路的能力.
  • 为了展示一个便携式的,基于纸张的CRIBOS用于生物信息存储.

主要方法:

  • 开发了CRIBOS,这是一个基于特定站点的重组酶平台,用于无细胞多重遗传电路.
  • 构建了超过20个多输入多输出电路,包括解码器.
  • 基于全转录因子 (aTF) 的集成传感器用于环境传感.
  • 使用纸质CRIBOS作为生物存储器.

主要成果:

  • 通过使用CRIBOS成功构建和演示了20多个多重遗传电路.
  • 通过将CRIBOS与aTF传感器相结合,实现了多重环境传感能力.
  • 创建了一种基于纸张的CRIBOS设备,能够存储基于DNA的生物信息超过4个月.
  • 证明了系统的可移植性,稳定性和低资源需求.

结论:

  • 克里博斯将多重布尔逻辑门的应用扩展到无细胞系统.
  • 该平台增强了遗传电路设计和应用的多功能性.
  • 基于纸张的CRIBOS提供了一个稳定且便携式的生物信息存储解决方案.
  • 这项工作为复杂的无细胞遗传电路开发开辟了新的途径.