核糖开关
群体感应
计算生物学
信号(编程语言)
生物
化学
生物物理学
核糖核酸
遗传学
计算机科学
非编码RNA
细菌
基因
生物膜
程序设计语言
作者
Michael L. Goodson,Annastacia C. Bennett,Brenton R. Jennewine,Emily Briskin,Svetlana Harbaugh,Nancy Kelley-Loughnane
标识
DOI:10.1021/acssynbio.6b00191
摘要
If fieldable riboswitch-based biological sensors are to fulfill their potential, it is necessary to increase their signal output. Here we report a novel modular amplification system using a riboswitch to initiate signaling between a sensing strain and a reporter strain of E. coli. A quorum sensing signaling molecule biologically wires the sensing and reporter strains together. The amplification circuit increased the amount of fluorescence generated on ligand binding compared to when the riboswitch controlled fluorescence expression directly. This had the corollary effect of increasing the sensitivity of the system, and allowed riboswitch-based reporting in E. coli strains that did not produce a detectable output when the riboswitch directly controlled reporter expression. The amplification circuit also reduced the time required to detect a signal output. The modularity of this amplification system coupled with the achievable increases in output can advance the development of riboswitches and biological sensors.
科研通智能强力驱动
Strongly Powered by AbleSci AI