A Lucifer-Based Environment-Sensitive Fluorescent PNA Probe for Imaging Poly(A) RNAs.

ABSTRACT: Fluorescence-based oligonucleotide (ON) hybridization probes greatly aid the detection and profiling of RNA sequences in cells. However, certain limitations such as target accessibility and hybridization efficiency in cellular environments hamper their broad application because RNAs can form complex and stable structures. In this context, we have developed a robust hybridization probe suitable for imaging RNA in cells by combining the properties of 1) a new microenvironment-sensitive fluorescent nucleobase analogue, obtained by attaching the Lucifer chromophore (1,8-naphthalimide) at the 5-position of uracil, and 2) a peptide nucleic acid (PNA) capable of forming stable hybrids with RNA. The fluorescence of the PNA base analogue labeled with the Lucifer chromophore, when incorporated into

SUBMITTER: Sabale PM 

PROVIDER: S-EPMC5972818 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature