Aminoallyl-dUTP-XX-ATTO-532

Aminoallyl-dUTP-XX-ATTO-532 is an aminoallyl-modified thymidine analog bearing an ATTO 532 fluorophore, designed for post-incorporation conjugation workflows in nucleic acid labeling. The aminoallyl handle enables downstream coupling to amines or other functional groups used in fluorescent probe and detection reagent construction, while the ATTO 532 emission supports fluorescence microscopy and fluorescence-based nucleic acid assays with standard visible-light instrumentation. Researchers use this reagent to generate fluorescently tagged DNA probes and to build multicolor labeling strategies where an ATTO 532 dye provides strong signal in the green-red spectral region.

1. Fluorescent DNA Probe Labeling

Aminoallyl-dUTP-XX-ATTO-532 is used by molecular biology and chemical biology groups to incorporate fluorescent nucleotides into DNA probes during nucleic acid synthesis or labeling workflows. After incorporation, the aminoallyl functionality provides a convenient attachment point for further conjugation steps, enabling probe formats that can be adapted for hybridization assays, imaging readouts, or immobilization on surfaces. This approach is commonly applied when a fluorescent nucleoside needs to be integrated into a probe backbone while retaining a reactive handle for subsequent bioconjugation to templates, linkers, or capture chemistries.

2. Fluorescence In Situ Hybridization

Aminoallyl-dUTP-XX-ATTO-532 supports fluorescence imaging of nucleic acids in fixed samples by providing an ATTO 532-labeled DNA probe that can be hybridized to complementary targets. Laboratories performing microscopy-based localization studies use this reagent to visualize hybridization patterns with a fluorophore that fits common filter sets for visible fluorescence imaging. The aminoallyl group can also be leveraged in probe optimization workflows where additional coupling or probe immobilization chemistry is required for consistent staining and wash-resistant signal.

3. Flow Cytometry Nucleic Acid Staining

Aminoallyl-dUTP-XX-ATTO-532 is applied in fluorescence-based cytometry workflows where labeled DNA probes or nucleic acid constructs are used to quantify or sort cells based on nucleic acid content or probe uptake after hybridization. In these workflows, the ATTO 532 dye provides a robust fluorescent signal for instrument readout, while the aminoallyl handle offers flexibility for building conjugate versions of the labeling reagent used in assay development. Researchers in genomics, cell biology, and assay engineering use this reagent to create nucleic acid staining reagents compatible with standard flow cytometry detection channels.

4. Surface Immobilized Hybridization Assays

Aminoallyl-dUTP-XX-ATTO-532 is used to prepare fluorescent DNA probes for immobilized hybridization formats, including microarray-style platforms and sensor surfaces where probe tethering improves assay handling and reproducibility. The aminoallyl functionality supports downstream coupling strategies that connect labeled probe strands to functionalized substrates, enabling stable probe presentation for hybridization and fluorescence readout. This application is frequently adopted in workflow development for nucleic acid detection reagents where consistent surface density and wash stability are important for imaging or plate-based fluorescence measurements.