Abstract

We combined the CRISPR-Cas13a system with CMC chemical labeling, developing an approach that enables precise identification of pseudouridine (Ψ) sites at specific loci within ribosomal RNA (rRNA), messenger RNA (mRNA) and small nuclear RNAs (snRNA). This method, with good efficiency and simplicity, detects Ψ sites through fluorescence measurement, providing a straightforward and fast validation for targeted Ψ sites of interest.

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