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一个合并的伪乌里丁生物制造平台,通过简化设计途径实现.

Le Yu1, Ruyi Chen1, Chenyue Zhang2

  • 1Department of Anesthesiology, Zhongnan Hospital of Wuhan University, TaiKang Center for Life and Medical Sciences, School of Pharmaceutical Sciences, Wuhan University, Wuhan, China.

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概括

这项研究提出了一种可持续且具有成本效益的方法来生产伪尿素 (Ψ),这是mRNA疫苗中的一个关键成分. 这种工程路径使得格拉姆尺度的生产成为可能,解决了生物制造的经济和环境挑战.

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科学领域:

  • 生物技术是生物技术.
  • 合成生物学 合成生物学
  • 生物化学工程 生物化学工程

背景情况:

  • 伪尤里丁 (Ψ) 对mRNA疫苗的有效性和药物开发至关重要.
  • 现有的伪乌里丁生产方法面临着经济和环境可持续性的挑战.

研究的目的:

  • 开发一个精简和可持续的生物制造平台,用于生产伪尿素 (Ψ).
  • 在大肠杆菌中设计一个优化的代谢途径,用于高滴度伪尿素 (Ψ) 合成.

主要方法:

  • 设计了一种合成途径,涉及UMP核酶, ΨMP糖酶和 ΨMP酸酶.
  • 鉴定并使用UMP偏好的核酶 (NmYgdH) 进行途径构建.
  • 优化了大肠杆菌的途径,并采用了依赖于thyA的策略,在5L生物反应器中进行可扩展,环保的生产.

主要成果:

  • 使用优化途径在大肠杆菌中达到44.8g·L-1的伪尿素 (Ψ) 标位.
  • 在5L生物反应器中证明了45.3g·L-1的可持续生产标位.
  • 开发了一种简化的净化策略,其回收率为71%并验证了平台的经济可行性.

结论:

  • 工程路径和发酵平台为工业规模的伪尿素 (Ψ) 生物制造提供了可行的蓝图.
  • 这项研究提供了一种可持续且具有成本效益的解决方案,用于生产伪尿素 (Ψ) 和相关的核酸分子.