Regulation of gene expression by aptamer-modulated rnase p cleavage

Abstract

The present disclosure provides polynucleotide constructs for the modulation of target gene expression by aptamer-mediated ribonuclease cleavage of the target gene RNA and methods of using the constructs to modulate gene expression in response to the presence or absence of a ligand that binds the aptamer. The polynucleotide constructs contains a ribonuclease substrate sequence (e.g., an RNase P substrate) and a riboswitch comprising an effector region and an aptamer such that when the aptamer binds a ligand, target gene expression occurs.

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