Abstract: Embodiments of the instant disclosure relate to novel compositions and methods for analyte detection by quantifying transcription of RNA using CRISPR-based approaches. In certain embodiments, constructs of use in assays disclosed herein can include a novel double-stranded DNA sequence having at least one transcriptional promoter, at least one regulatory element, and a target sequence. In some embodiments, constructs disclosed herein can be used in a system for quantifying transcriptional output in a sample in order to detect presence of an analyte. In other embodiments, constructs and systems disclosed herein can be used to measure enzyme activity, to detect and/or quantify at least one agent that modulates transcription, detect and/or quantify analytes (e.g. a contaminant, biomarkers or other agent) or a combination thereof in accordance with assessing health of a subject or assessing environmental conditions or contaminants.

Abstract: Provided herein are libraries of scaffolds derived from riboswitches and small ribozymes and their methods of use. The scaffolds of the invention yield aptamers that are easily identified and characterized by virtue of the structural scaffold. The nature of the scaffold predisposes these RNAs for coupling to readout domains to engineer biosensors that function in vitro and in vivo. Biosensors, synthetic RNA agents and synthetic DNA agents, and their methods of use, are also provided.

Abstract: This invention relates to the field of ribonucleic acid (RNA) regulation of intracellular activity. In particular, the invention relates to compositions and methods of identifying and tracking specific intracellular RNAs. For example, a fluorescently tagged RNA probe may be tracked by in vivo live imaging throughout its intracellular lifetime in order to determine its purpose and identify regulatory targets to modify its effects. Alternatively, an RNA probe may carry a therapeutic payload for treatment of medical condition or disorder.

Abstract: Provided herein are libraries of scaffolds derived from riboswitches and small ribozymes and their methods of use. The scaffolds of the invention yield aptamers that are easily identified and characterized by virtue of the structural scaffold. The nature of the scaffold predisposes these RNAs for coupling to readout domains to engineer biosensors that function in vitro and in vivo. Biosensors, synthetic RNA agents and synthetic DNA agents, and their methods of use, are also provided.

Abstract: This invention relates to the field of ribonucleic acid (RNA) regulation of intracellular activity. In particular, the invention relates to compositions and methods of identifying and tracking specific intracellular RNAs. For example, a fluorescently tagged RNA probe may be tracked by in vivo live imaging throughout its intracellular lifetime in order to determine its purpose and identify regulatory targets to modify its effects. Alternatively, an RNA probe may carry a therapeutic payload for treatment of medical condition or disorder.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduce self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduced self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant has the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.

Abstract: The present invention provides a mutant 27 kDa NIa proteinase having reduce self-cleavage activity relative to the self-cleavage activity of its wild-type proteinase. The mutant the same substrate cleavage activity as the wild-type proteinase but is more stable than the wild-type proteinase. The present invention also provides a method of obtaining large quantities of active 27 kDa NIa proteinase for use as a tool for purification of other proteins.