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评估DFHBI-响应性RNA光线升高的适应体作为基因表达的光报告器

Alicia Climent-Catala^1,2,3, Ivan Casas-Rodrigo⁴, Suhasini Iyer^1,5

¹Imperial College Centre for Synthetic Biology, London SW7 2AZ, U.K.

ACS synthetic biology

|November 22, 2023

概括

研究人员在大肠杆菌中作为转录记者探索了RNA照明体,发现它们比蛋白质记者提供更快的动态,但显示出更高的种群变异性. 这些RNA记者推进基因表达研究.

科学领域:

分子生物学分子生物学
RNA 纳米技术纳米技术
合成生物学合成生物学

背景情况:

基于蛋白质的光记者是常见的,但对动态或转录研究有局限性.
RNA纳米技术提供功能性RNA分子作为转录光记者的替代品.
RNA 体可以在结合小分子时激活光,但它们作为基因表达记者的使用需要进行表征.

研究的目的:

为了研究三种RNA亮光受体 (F30-2xdBroccoli,tRNA-Spinach,Tornado Broccoli) 作为*Escherichia coli*中的转录记者的性能.
以激活范围,细胞生长效应,种群变异性和动态行为来比较它们与蛋白质记者之间的适用性.
评估它们在促进细菌系统中基于转录的研究和基于RNA的电路的潜力.

主要方法:

进行了时间循环实验,以评估RNA照亮受体的激活范围和对细胞生长的影响.
流细胞计用于比较RNA和基于蛋白质的记者之间的单细胞水平变异性.
分析和比较了RNA吸收体和蛋白质记者的动态行为.

主要成果:

随着时间的推移,RNA亮光受体被证实是E. coli*中合适的转录记者.
与蛋白质记者相比,RNA光线上受体的表达导致了单细胞水平上较高的人口变异性.
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结论:

在细菌的转录研究中,RNA光照体为蛋白质记者提供了可行的替代方案.
它们更快的动态可能为研究具有快速变化的生物过程提供优势.
进一步实施这些RNA记者可以提高对转录过程的理解,并扩展基于细菌RNA的电路.

关键词:

美国大肠杆菌 (E. coli).在RNA照明的阿普坦体上.动力学动力学动力学基因表达的基因表达方式记者记者记者记者合成生物学合成生物学

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