Aminoallyl-UTP-ATTO-647N

Aminoallyl-UTP-ATTO-647N is a fluorescently labeled nucleotide analog designed for incorporation into nucleic acids during enzymatic synthesis. The aminoallyl handle enables downstream conjugation or coupling strategies, while the ATTO 647N fluorophore provides far-red fluorescence that is commonly leveraged for sensitive imaging and multiplex-compatible detection. In nucleic acid workflows, this reagent is typically used to generate fluorescently tagged RNA or DNA probes for microscopy, hybridization assays, and fluorescence-based readouts.

1. Fluorescent RNA Probe Labeling

Aminoallyl-UTP-ATTO-647N is frequently used by molecular biology and genomics labs to produce fluorescent RNA probes through in vitro transcription, enabling visualization of RNA localization and hybridization behavior. Researchers incorporate the labeled UTP analog into transcripts to generate far-red fluorescent targets that can be detected by fluorescence microscopy or plate-based fluorescence readers. The aminoallyl functionality supports additional conjugation workflows when more complex probe architectures are required, such as attaching secondary labels or coupling to affinity handles for downstream purification or assay integration.

2. Nucleic Acid Hybridization Assays

Aminoallyl-UTP-ATTO-647N supports fluorescence-based nucleic acid hybridization experiments where labeled RNA is used to detect complementary sequences. In probe development workflows, this reagent helps generate stable, high-contrast fluorescent reporters for monitoring hybridization in solution or on membranes, with ATTO 647N emission facilitating separation from common background autofluorescence and from many visible-spectrum fluorophores. Molecular imaging and assay development teams often use these labeled probes to optimize hybridization conditions, validate probe design, and build fluorescence readouts for nucleic acid analysis.

3. Fluorescence Microscopy Tracking

Aminoallyl-UTP-ATTO-647N is used in cellular and subcellular imaging workflows to track nucleic acid distribution by labeling RNA with a far-red fluorophore. Imaging groups commonly generate fluorescent RNA probes from the labeled nucleotide and then apply them in fixed-sample microscopy protocols to visualize RNA localization patterns and hybridization signals. The aminoallyl handle provides an additional degree of freedom for probe customization, which can be helpful when integrating nucleic acid labeling with other chemical tagging steps in multi-reagent imaging experiments.

4. Conjugatable Nucleic Acid Reagents

Aminoallyl-UTP-ATTO-647N is leveraged when researchers need a nucleic-acid-compatible fluorescent label that also offers a reactive aminoallyl group for further coupling. Chemical biology teams use this feature to create multifunctional nucleic acid reagents, such as fluorescent probes that can be coupled to additional dyes, affinity moieties, or surface-binding components for specialized assay formats. This approach is particularly useful in platform development where probe immobilization, multicolor labeling strategies, or modular reagent design are required for robust fluorescence readouts.