Aminoallyl-dUTP-XX-ATTO-425

Aminoallyl-dUTP-XX-ATTO-425 is an aminoallyl-modified thymidine analog bearing an ATTO 425 fluorophore, designed for post-incorporation fluorescent labeling of nucleic acids. In common workflows, the aminoallyl handle enables subsequent conjugation to amine-reactive dyes, affinity tags, or bioconjugation partners, while the ATTO 425 emission supports fluorescence microscopy and fluorescence-based nucleic acid readouts. This reagent is typically used by molecular biology and genomics laboratories to generate labeled DNA probes and fluorescent nucleic acid standards for imaging and analytical assays.

1. Nucleic Acid Labeling Probes

Aminoallyl-dUTP-XX-ATTO-425 is used to prepare fluorescently labeled DNA probes for hybridization-based detection and nucleic acid visualization workflows. Researchers incorporate the dUTP analog into DNA templates during labeling or amplification steps, then use the fluorophore-bearing nucleotides to track hybridization events by fluorescence readout. The aminoallyl functionality provides an additional conjugation opportunity when downstream coupling to capture reagents, linkers, or secondary labeling components is desired for assay development and probe optimization.

2. Fluorescence In Situ Hybridization

Aminoallyl-dUTP-XX-ATTO-425 supports fluorescence in situ hybridization (FISH) and related microscopy-based localization studies where labeled DNA is hybridized to complementary targets in fixed samples. Molecular imaging teams use ATTO 425 fluorescence to visualize nucleic acid distribution in cells or tissue sections, enabling mapping of genomic or transcript-associated sequences. The reagent's nucleoside format allows direct integration into probe constructs, while the aminoallyl handle can be leveraged for multicomponent probe schemes that require additional functionalization beyond the fluorophore.

3. qPCR and Nucleic Acid Assay Standards

Aminoallyl-dUTP-XX-ATTO-425 is frequently used to generate fluorescent nucleic acid standards and calibration materials for assay development and method transfer. In laboratories building fluorescence-based nucleic acid workflows, the ATTO 425 signal provides a convenient optical readout for verifying probe integrity, labeling consistency, and workflow performance across batches. When an amino-reactive coupling step is part of the assay design, the aminoallyl group can be used to attach the labeled nucleic acid to surfaces or capture chemistries used in nucleic acid analytics and platform validation.

4. Surface Immobilized DNA Conjugates

Aminoallyl-dUTP-XX-ATTO-425 enables construction of fluorescent, surface-immobilized DNA conjugates for biosensor development and nucleic acid capture assays. Materials scientists and chemical biology teams use the nucleic acid labeling to create probe layers on functionalized surfaces, where fluorescence from ATTO 425 provides a convenient means to monitor immobilization and probe availability during method optimization. The aminoallyl functionality supports conjugation strategies that integrate labeled DNA with linker chemistries commonly used for surface functionalization in microarrays, assay cartridges, and other nucleic acid testing formats.