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Molecular Probes™ Ulysis™ Alexa Fluor™ 594 Nucleic Acid Labeling Kit DFS Item

Ulysis™ Alexa Fluor™ 594 Nucleic Acid Labeling Kit

Supplier:  Molecular Probes™ U21654

Catalog No. U21654



ULYSIS™ Nucleic Acid Labeling Kits provide a unique method to attach a fluorescent dye to nucleic acids. The labeling reagent in the kit reacts with the N7 of guanine to form a stable coordination complex, and the reaction is simple and fast—just heat denature DNA (5 minutes), add the label (react for 15 minutes), then purify.

ULYSIS™ Nucleic Acid Labeling Specifications:
  • Dye (Ex/Em): Alexa Fluor™ 594 (588/615 nm)
  • Labeling reaction is complete in as little as 15 minutes
  • Available in several Alexa Fluor™ dye colors

    The Resulting Labeled Probe is useful for:
  • Dot, northern, and Southern blots
  • RNA and DNA in situ hybridization
  • Multicolor fluorescence in situ hybridization (mFISH)
  • Comparative genome hybridization (CGH)
  • Microarray analysis

    Reliable Labeling With the Universal Linkage System
    We developed this series of ULYSIS™ kits to enable rapid and simple coupling of our Alexa Fluor™ dyes to purine bases in nucleic acid polymers. The method, the Universal Linkage System (ULS™), is based on the use of a platinum dye complex (owned by KREATECH Diagnostics) that forms a stable adduct with the N7 position of guanine and, to a lesser extent, adenine bases in DNA, RNA, PNA, and oligonucleotides. The result is a reliable nonenzymatic method for nucleic acid labeling.

    Labeling is Fast and Easy
    The labeling reaction typically takes only 15 minutes, and separation of the labeled nucleic acids from the unreacted ULS™ complex can be accomplished through the use of a simple spin-column procedure. DNA longer than ∼1,000 base pairs requires a 10-minute DNase digestion before labeling, which both optimizes labeling and fragments the probe for efficient hybridization.

    More Options for Nucleic Acid Labeling
    To review various options for nucleic acid labeling, review Labeling Oligonucleotides and Nucleic Acids—Section 8.2 in the Molecular Probes™ Handbook, read Nucleic Acid Amplification & Expression Profiling, or view a list of our kits.

    For Research Use Only. Not intended for human or animal therapeutic or diagnostic use.
  • Specifications


    Store in freezer (-5 to -30°C) and protect from light.
    Probes (Labeled RNA), Probes (Labeled DNA), Oligos (Labeled)
    Alexa Fluor™, Ulysis™
    Room Temperature
    Alexa Fluor 594
    DNA (General), Oligos, RNA (General)
    Direct Labeling
    Nucleic Acid Labeling Kit




    For Research Use Only. Not for use in diagnostic procedures.