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Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
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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.
The recognition sites for Cre recombinase called LoxP...
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工程结合性等离子体用于可诱导的水平DNA转移.

Tahani Jaafar1, Emily Carvalhais1, Arina Shrestha1

  • 1Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada.

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概括

研究人员设计了可诱导的结合性等离子体来对抗抗菌素耐药性. 这种创新方法使下一代抗微生物药物的受控基因转移成为可能,提高了安全性和有效性.

关键词:
这是一种抗真菌药物.抗微生物药物是一种抗菌药物.生物封闭是一种生物封闭.横向基因转移是指水平基因转移.诱导性结合机械是一种诱导性结合机械.

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科学领域:

  • 微生物学 微生物学
  • 合成生物学 合成生物学
  • 生物技术是生物技术.

背景情况:

  • 抗菌素耐药性 (AMR) 是一个重大的全球健康和粮食安全威胁,需要新的治疗策略.
  • 现有的化学抗微生物药物由于广泛的微生物耐药性而变得越来越无效.
  • 结合性等离子体通过提供有毒的遗传有效载荷,为开发下一代抗微生物药物提供了一个有希望的平台.

研究的目的:

  • 开发可诱导的结合性等离子体,用于控制的水平基因转移.
  • 设计生物控制策略,以减轻与基于等离子体的抗微生物药物相关的生态风险.
  • 为了确定细菌基因对于严格调节结合性等离子体转移至关重要.

主要方法:

  • 开发可诱导阿拉比诺斯的结合性等离子体.
  • 对13种具有单个基本基因缺失的等离子体进行评估.
  • 在cis和trans配置中评估等离子体诱导性.

主要成果:

  • 鉴定trbC和trbF基因作为严格的等离子体调节的关键.
  • 在诱导条件下,证明了对效率的显著诱导性 (高达5-log增加).
  • 在cis和trans等离子体配置中证实了诱导性.

结论:

  • 工程可诱导的结合性等离子体为更安全的抗菌技术提供了基础.
  • 可实现受控的等离子体转移,解决了对意外基因传播的担忧.
  • 需要进一步优化,以克服效率下降和促销商泄漏等挑战.