Molecular Biology • Fluorescent DNA Labeling

AZDye555 NT Labeling Kit

Fluorescent DNA labeling kit based on nick translation technology for preparing labeled DNA probes for fluorescence-based nucleic acid detection and hybridization applications.

AZDye555 NT Labeling Kit
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Product Information

Catalogue Number0220-PP-305S-AZ555
Product Size10 Reactions
Labeling TechnologyNick Translation (NT)
Fluorescent LabelAZDye555
Research AreaMolecular Biology
Dry IceNo
HazardousNo
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24/48H Stock Items & 2 to 6 Weeks non Stock Items.

Product Description

AZDye555 NT Labeling Kit contains the reagents required for DNA labeling by nick translation, with the exception of the DNA template and materials needed for probe purification. It provides an efficient and convenient enzymatic labeling method for preparing fluorescently labeled DNA probes.

The AZDye555 NT labeling mix contains specially optimized dUTP-XX-AZDye555, which is incorporated into DNA during nick translation using DNA Polymerase I. The fluorophore combines good stability and quantum yield with an efficient dye-dUTP incorporation rate.

The resulting labeled double-stranded DNA fragments are suitable for fluorescence-based applications, including fluorescence in situ hybridization (FISH), microarray gene expression profiling, and other nucleic acid hybridization assays.

Alternative Product Name: Yellow fluorescent DNA labeling by nick translation.

Principle of Nick Translation Labeling

Nick translation is an enzymatic DNA labeling method that uses the coordinated activities of DNase I and DNA Polymerase I to introduce fluorescently labeled nucleotides into double-stranded DNA.

Step 1 – Nick Formation

DNase I introduces randomly distributed nicks into double-stranded DNA at low enzyme concentrations.

Step 2 – DNA Strand Processing

The 5′→3′ exonuclease activity of DNA Polymerase I removes nucleotides ahead of the nick while its polymerase activity synthesizes a new complementary DNA strand from the available 3′-OH terminus.

Step 3 – Fluorescent Nucleotide Incorporation

In the presence of dye-labeled dUTP, DNA Polymerase I incorporates AZDye555-labeled dUTP in place of dTTP during DNA synthesis.

Step 4 – Labeled DNA Probe Generation

The balanced polymerase and nuclease activities generate fluorescently labeled double-stranded DNA fragments suitable for downstream hybridization applications.

Key Features & Benefits

  • Efficient fluorescent labeling: Incorporates AZDye555-labeled dUTP into DNA through enzymatic nick translation.
  • Ready-to-use labeling reagents: Contains the reagents required for the labeling reaction, excluding the DNA template and probe purification materials.
  • Fluorescence performance: Combines fluorophore stability and quantum yield with a high incorporation rate.
  • Double-stranded DNA labeling: Produces fluorescently labeled DNA fragments.
  • Convenient workflow: Uses the coordinated activities of DNase I and DNA Polymerase I.
  • Broad research applications: Suitable for FISH, microarray gene expression profiling, and nucleic acid hybridization assays.

Research Applications

  • Fluorescence in situ hybridization (FISH)
  • Microarray gene expression profiling
  • Fluorescent DNA probe preparation
  • Nucleic acid hybridization assays
  • Fluorescence-based molecular biology research

Technical Specifications

Product NameAZDye555 NT Labeling Kit
Alternative NameYellow fluorescent DNA labeling by nick translation
Catalog Number0220-PP-305S-AZ555
Pack Size10 Reactions
Labeling MethodNick translation
Fluorescent NucleotidedUTP-XX-AZDye555
Enzymatic ComponentsDNA Polymerase I and DNase I activities
TemplateNot included
Probe Purification MaterialsNot included
UNSPSC41106300
HS Code38221900
eClass Number32160502
eClass Product GroupPCR-Reagenz (Labor)
Autoclavability—

Storage & Handling

  • Storage Temperature: −20°C
  • Storage Conditions: Store protected from light.
  • Freeze-Thaw: Avoid repeated freeze-thaw cycles.
  • Shipping Conditions: Shipped on gel packs.
  • Shelf Life: 12 months.
Important Handling Note: Protect fluorescent labeled dUTP from light and perform experimental procedures under low-light conditions to help preserve fluorescence performance.

Product Identifiers

SynonymYellow fluorescent DNA labeling by nick translation
UNSPSC DescriptionPolymerase chain reaction PCR and reverse transcriptase polymerase chain reaction RT PCR products

SMILES

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