Sequence-specific recognition of structured RNA by triplex-forming peptide nucleic acids.
While <2% of DNA encodes for functional proteins, >70% is transcribed into RNA. Although the function of most RNA transcripts is unknown, such non-coding RNAs are attractive targets for molecular recognition because of the potentially important roles they play in regulation of gene expression and development of disease. In this chapter, we describe peptide nucleic acids (PNAs) that form sequence-specific triple helices with double-stranded RNA (dsRNA). We provide protocols for sequence design and biophysical characterization of PNAs and discuss first examples where such PNAs have been used for functional modulation of dsRNA. The triplex-forming PNAs represent a new approach for RNA recognition that may find future applications in fundamental science, biotechnology and medicine.
['Hnedzko|Dziyana|D|', 'Rozners|Eriks|E|']
D001483:Base Sequence D001665:Binding Sites D002851:Chromatography, High Pressure Liquid D003124:Colorimetry D015195:Drug Design D009690:Nucleic Acid Conformation D020135:Peptide Nucleic Acids D012330:RNA, Double-Stranded D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization D013056:Spectrophotometry, Ultraviolet
Peptide nucleic acid PNA ITC Isothermal titration calorimetry Modified nucleobases Sequence selective RNA recognition Triple helix