Aminoallyl-UTP-Cy5 (ethyl)

Aminoallyl-UTP-Cy5 (ethyl) is a Cy5-labeled nucleoside analog designed for fluorescent incorporation into RNA and related nucleic acid workflows. The aminoallyl handle enables efficient post-labeling conjugation strategies, while the Cy5 fluorophore provides far-red fluorescence for microscopy and nucleic-acid visualization. This reagent is used by molecular biology and chemical biology teams to generate fluorescent RNA probes, track hybridization, and build labeled nucleic acid standards for fluorescence-based assays.

1. Fluorescent RNA Probe Labeling

Aminoallyl-UTP-Cy5 (ethyl) is used to generate Cy5-labeled RNA probes for hybridization experiments, enabling visualization of complementary sequences in solution or on nucleic acid capture formats. Researchers in nucleic acid analysis and molecular imaging workflows incorporate the labeled nucleotide during in vitro transcription or labeling steps to produce fluorescent RNA targets that can be hybridized to DNA/RNA complements. The far-red Cy5 signal supports clear readout against many common biological backgrounds, making the reagent a practical choice for probe construction when RNA-based detection tools are required.

2. Fluorescence Hybridization Assays

Aminoallyl-UTP-Cy5 (ethyl) supports fluorescence-based nucleic acid assays where labeled RNA is used as a reporter for binding and hybridization events. In genomics research and assay development, teams use Cy5-labeled RNA probes to monitor hybridization to immobilized oligonucleotides or nucleic acid targets, often coupling the fluorescent readout to plate readers or imaging systems. The Cy5 fluorophore's emission in the far-red region helps reduce interference from autofluorescence commonly encountered in nucleic acid workflows, supporting robust imaging and quantification of hybridization signals.

3. RNA Tracking In Vitro

Aminoallyl-UTP-Cy5 (ethyl) is frequently applied to track RNA distribution and behavior in controlled laboratory settings, including studies that monitor labeled RNA uptake, binding, or localization in model systems. Chemical biology groups use Cy5-labeled RNA to follow nucleic acid interactions with biomolecular partners or materials under defined experimental conditions, leveraging the fluorescent label to visualize RNA-associated processes. This use case is particularly relevant when researchers need a stable far-red fluorophore tag on RNA to enable direct fluorescence microscopy or imaging-based readouts without relying on indirect staining.

4. Fluorescent Standards And Controls

Aminoallyl-UTP-Cy5 (ethyl) is also used to prepare fluorescent nucleic acid standards and assay controls for method development and instrument verification. By generating reproducible Cy5-labeled RNA material, assay developers can establish reference signals for imaging setups, fluorescence quantification workflows, and hybridization assay optimization. Laboratories often include these labeled nucleic acid controls to benchmark signal consistency across experiments and to support troubleshooting when comparing probe batches or assay conditions.