Abstract
Here we report a simple method to convert synthetic receptors to fluorescent sensors. An RNA-peptide complex (ribonucleopeptide) with a known three-dimensional structure is used as a framework of the receptor. Artificial ribonucleopeptide sensors were created with a combination of in vitro selection method and successive modification of the peptide with a fluorophore. A ribonucleopeptide complex of the fluorophore labeled peptide showed a remarkable fluorescence emission change upon binding cognate ligands.
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