A modified dinucleotide for site-specific RNA-labelling by transcription priming and click chemistry†
Abstract
An improved strategy for RNA labelling using an alkyne-carrying dinucleotide is reported. This involves near-quantitative priming by phage RNA-polymerases followed by conjugation of different labels using click chemistry. Moreover, these transcripts bear a ligation compatible 5′-end, and thus through ligation the terminal label can be transformed to an internal one.