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Molecular Probes™ Alexa Fluor™ 488 Microscale Protein Labeling Kit

Catalog No. A30006
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Quantity:
1 Kit

Microscale Protein Labeling Kits provide a convenient means for attaching a fluorescent label to a small amount of antibody or protein (20–100 μg).

Microscale Protein Labeling Kits provide a convenient means for attaching a fluorescent label to a small amount of antibody or protein (20–100 μg). The kits are available in four Alexa Fluor™ colors (or biotin) and supply everything needed for three labeling and separation reactions.

Important Features of Microscale Protein Labeling Kits:

  • Labeled proteins typically ready to use typically in 2 hr (∼30 min hands-on time)
  • Optimized for 20–100 μg of protein with molecular weights between 12 and 150 kDa
  • Purified using convenient spin filters with yields between 60 and 90%
  • Stabilizing proteins must be removed from the sample before labeling

Stable Reaction Chemistry and Superior Alexa Fluor™ Dyes

In the Microscale Protein Labeling Kits, the reactive dye contains a tetrafluorophenyl (TFP) ester moiety that is more stable in solution than the commonly used succinimidyl (NHS) ester. TFP esters react efficiently with primary amines of proteins to form stable dye–protein conjugates. Compared to traditional dyes, Alexa Fluor™ dyes are brighter, more photostable, and more pH resistant between pH 4 and 10. And generally when using Alexa Fluor™ dyes, higher degrees of labeling can be achieved without intramolecular quenching. For details see Alexa Fluor™ Dyes Spanning the Visible and Infrared Spectrum—Section 1.3.

Learn More About Protein and Antibody Labeling

We offer a wide selection of Molecular Probes™ antibody and protein labeling kits to fit your starting material and your experimental setup. See Antibody Labeling from A to Z or use our Labeling Chemistry Selection Toolfor other choices. To learn more about our various kits, read Kits for Labeling Proteins and Nucleic Acids—Section 1.2 in the Molecular Probes™ Handbook.

We'll Make a Custom Antibody Conjugate for You

If you can't find what you're looking for in our stocked list, we'll prepare a custom antibody conjugate for you. Our custom conjugation service is efficient and confidential, and we stand by the quality of our work. We are ISO 13485:2000 certified.

TRUSTED_SUSTAINABILITY

Specifications

Product Type Labeling Kit
Quantity 1 Kit
Content And Storage Store in refrigerator 2°C to 8°C and protect from light.
Detection Method Fluorescence
Excitation/Emission 495/519 nm
Labeling Method Conjugation-based
Labeling Scale 20–100 μg
Shipping Condition Room Temperature
Product Line Alexa Fluor™
Reactive Moiety Tetrafluorophenyl (TFP) Ester
Label or Dye Alexa Fluor 488
Color Green
Labeling Target Proteins
Label Type Alexa Fluor
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WARNING: Reproductive Harm - www.P65Warnings.ca.gov

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

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