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相关概念视频

Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Highly Sensitive and Rapid Fluorescence Detection with a Portable FRET Analyzer
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一个高度选择性的基于细胞的光生物传感器用于基尼斯坦检测.

Lucy Fang-I Chao1, Dany Liu1, Verena Siewers1

  • 1Department of Life Sciences, Division of Systems and Synthetic Biology, Chalmers University of Technology, Gothenburg SE-41296, Sweden.

Engineering microbiology
|December 4, 2024
PubMed
概括

研究人员在酵母中开发了一种改进的生物传感器,以检测豆类中的有益化合物基因斯坦. 这种工具增强了对高产微生物菌株的查,加快了产生基因斯坦的细胞工厂的发展.

科学领域:

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

背景情况:

  • 豆类衍生的异黄Genistein具有显著的健康益处,引发了对微生物生产的兴趣.
  • 开发高效的基因斯坦微生物细胞工厂需要高产菌株的有效选方法.

研究的目的:

  • 设计一种灵敏和特定的基于细胞的生物传感器,用于在Saccharomyces cerevisiae*中检测基因斯坦.
  • 为了促进微生物菌株的高通量查,以提高基因斯坦的生产.

主要方法:

  • 重新利用酵母中的Gal4DBD-ERα-VP16 (GEV) 转录激活剂,以创建一个对基因斯坦有反应的系统.
  • 工程 GEV 传感器蛋白,它的促进子 (使用 *REV1*p),和记者促进子 (删除 Mig1 站点,添加 Gal4p 站点) 以提高性能.
  • 将VP16事务激活域替换为VPR事务激活器.

主要成果:

  • 与未诱导状态相比,工程生物传感器在基因斯坦诱导后实现了GFP信号强度的20倍增加.
  • 生物传感器表现出高特异性,在八种测试的黄类药物中,它只对基因斯坦产生反应.
  • 观察到对基因斯坦度和细胞内基因斯坦水平的线性反应.
关键词:
生物传感器是一种生物传感器.黄类化合物 黄类杰尼斯泰因 (Genistein) 是一种植物性物质.这种类型的异黄是Isoflavone.

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结论:

  • 开发的生物传感器是一种敏感和特定的工具,用于检测基因斯坦.
  • 这种生物传感器可以显著帮助生产热素素的酵母细胞工厂的高通量选.
  • 进一步优化可以加快生物技术生产的Genistein.