id author title date pages extension mime words sentences flesch summary cache txt cord-306288-w43wec48 Jang, Sungho RNA-based dynamic genetic controllers: development strategies and applications 2017-11-10 .txt text/plain 4613 285 36 The aptamers and expression platforms were reassembled in a mix-and-match fashion to create chimeric riboswitches that retained their regulatory activities to turn off transcription upon ligand binding, and even combinations using artificial RNA aptamers were successful in regulating gene expression. Engineering of natural RNA-based regulation for dynamic control of gene expression requires detailed knowledge of each mechanism. Aptamers were placed upstream of IRES and several base-pairing sequences were designed to control the formation of critical structures (PK-III) depending on ligand binding (Figure 2b ). RNA molecules that regulate translation (IS10) or transcription (pT181) were combined with aptamers to control the formation of intramolecular structures depending on ligand binding [24] (Figure 2c ). Moreover, simultaneous utilization of high-throughput measurement of activity and next-generation sequencing analysis can not only screen and optimize dynamic RNA controllers, but also provide new design principles from sequence-structure-function relationships [14 ,15] . ./cache/cord-306288-w43wec48.txt ./txt/cord-306288-w43wec48.txt