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18972398. DEAMINASE-BASED RNA SENSORS (Massachusetts Institute of Technology)

From WikiPatents

DEAMINASE-BASED RNA SENSORS

Organization Name

Massachusetts Institute of Technology

Inventor(s)

KAIYI Jiang of CAMBRIDGE MA US

ROHAN NEIL Krajeski of BOSTON MA US

OMAR OSAMA Abudayyeh of CAMBRIDGE MA US

JONATHAN S. Gootenberg of CAMBRIDGE MA US

YIFAN Zhang of CAMBRIDGE MA US

FEI Chen of CAMBRIDGE MA US

XI Chen of ROXBURY CROSSING MA US

JEREMY G. Koob of SOMERVILLE MA US

DEAMINASE-BASED RNA SENSORS

This abstract first appeared for US patent application 18972398 titled 'DEAMINASE-BASED RNA SENSORS

Original Abstract Submitted

RNA editing tools for use in systems designed to measure RNA in vivo and manipulate specific cell types are disclosed herein. An RNA sensor system comprising a) a single-stranded RNA (ssRNA) sensor comprising a stop codon and a payload; optionally wherein the ssRNA sensor further comprises a normalizing gene; and b) an adenosine deaminase acting on RNA (ADAR) deaminase; wherein the sensor is capable of binding to a ssRNA target to form a double-stranded RNA (dsRNA) duplex that becomes a substrate for the ADAR deaminase; wherein the substrate comprises a mispairing within the stop codon; and wherein the mispairing is editable by the ADAR deaminase, which editing can effectively remove the stop codon so as to enable translation and expression of the payload. A method of quantifying ribonucleic acid (RNA) levels using the RNA sensor system is also disclosed.