it remains a great challenge to image miRNAs with high accuracy in living cells. Here, we report a novel geneticallyencoded dual-color light-up RNAsensor for ratiometric imaging of miRNAs using Mango as an internal reference and SRB2 as the sensor module. This geneticallyencodedsensor is designed by expressing a splittable fusion of the internal reference and sensor module under a single promoter
[EN] BIFACIAL PEPTIDE NUCLEIC ACID PROBES AND METHODS OF USING THEREOF<br/>[FR] SONDES D'ACIDES NUCLÉIQUES PEPTIDIQUES BIFACIALES ET LEURS PROCÉDÉS D'UTILISATION
申请人:[en]OHIO STATE INNOVATION FOUNDATION
公开号:WO2024010977A1
公开(公告)日:2024-01-11
Disclosed herein are bifacial peptide nucleic acid probes. These probes can include a triplex hybrid forming moiety (e.g., a plurality of binding motifs disposed along a peptidyl backbone) conjugated to a prosthetic group. The triplex hybrid forming moiety can bind to a non-canonical base pairing site in a target nucleic acid via triplex hybridization. In this way, a variety of prosthetic groups (e.g., dyes, labels, reactive groups, etc.) can be selectively delivered to a target nucleic acid (e.g.,in vivo,in vitro, orex vivo).
Screening of Minimalist Noncanonical Sites in Duplex DNA and RNA Reveals Context and Motif‐Selective Binding by Fluorogenic Base Probes
A semi-rational approach to detect low affinity binding to noncanonical pair (NCP) sites in duplexDNA and RNA has been developed. A set of fluorogenic thiazole orange probes bearing abiotic (triazines, pyrimidines) and native RNA bases was screened against dsDNAs and dsRNAs with single abasic, single NCP and tandem NCP sites. Fluorogenic probe engagement revealed novel and selective base interactions