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相关实验视频

Updated: Jan 8, 2026

Design and Implementation of an Automated Illuminating, Culturing, and Sampling System for Microbial Optogenetic Applications
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对于Streptomyces的单一副本光遗传系统.

Airi Watanabe1, Ryuta Noya1, Rio Yamada1

  • 1Life Science Research Center, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, 252-0880, Japan.

Scientific reports
|December 15, 2025
PubMed
概括

科学家们开发了一种新的光诱导基因表达系统 (iLiEX),用于Streptomyces细菌. 该系统可以使用蓝绿光精确控制蛋白质的生产,比现有方法具有显著的优势.

关键词:
这是一种Strepomyces griseusus.表达系统的表达方式在LitRR LitRR中使用.视觉遗传学 视觉遗传学

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相关实验视频

Last Updated: Jan 8, 2026

Design and Implementation of an Automated Illuminating, Culturing, and Sampling System for Microbial Optogenetic Applications
11:13

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Published on: February 19, 2017

10.1K
In vivo Optogenetic Stimulation of the Rodent Central Nervous System
09:37

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60.3K
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科学领域:

  • 微生物学 微生物学
  • 分子生物学分子生物学
  • 生物技术是生物技术.

背景情况:

  • LitR是一种蓝绿色光感应的转录调节器,利用协酶B12.
  • 杆菌物种是重要的格拉姆阳性细菌,其中S. griseus以杆菌素的生产而闻名.

研究的目的:

  • 在Streptomyces griseus.中开发一个基因组整合,光感应表达 (iLiEX) 系统.
  • 为了使Streptomyces中精确的,光控制的蛋白质过量产生.

主要方法:

  • 在Streptomyces基因组中整合Litr,T7RNA聚合酶和血清酶整合.
  • 优化T7RNA聚合酶的核糖体结合部位,并引入T7溶酶.
  • 修改T7促进体长度以提高多功能性.

主要成果:

  • 实现了依赖光的甲基醇-2,3-二氧化酶和GUS的过度产生,GUS活性比erME*促进剂高39倍.
  • 在多个Streptomyces物种 (S. coelicolor,S. lividans,S. albus,S. avermitilis) 中表现出功能.
  • 成功可视化了光蛋白,染色蛋白和色素合成酶的光诱导过度表达.

结论:

  • 开发的iLiEX系统是一种多功能,单复制,光感应的过度表达工具,用于Streptomyces.
  • 该系统允许高水平生产各种蛋白质,包括分泌的酶,如乳糖酶和转胺酶.
  • iLiEX在各种Streptomyces物种中提供了广泛的适用性,用于控制基因表达.