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À propos de : Imaging of RNA in Bacteria with Self-Ligating Quenched Probes        

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  • Imaging of RNA in Bacteria with Self-Ligating Quenched Probes
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  • We report on the application of a new class of oligonucleotide reporter probes, QUAL probes, that “light up” when a nucleophilic phosphorothioate probe binds adjacent to a dabsyl-quenched probe. These self-ligating DNA probes were used for sequence-specific detection of 16S rRNA in Escherichia coli cells. Strong fluorescence was observed only when the phosphorothioate and quenched dabsyl probes bind side-by-side on a 16S rRNA target. The results demonstrate the use of QUAL probes to detect specific RNA sequences in bacterial cells without enzymes and without washing steps.
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