Exosome Immunoprecipitation Reagent (Protein G)
Exosome Immunoprecipitation Reagent (Protein G)
Exosome Immunoprecipitation Reagent (Protein G)
Exosome Immunoprecipitation Reagent (Protein G)
Invitrogen™

Exosome Immunoprecipitation Reagent (Protein G)

Exosome Immunoprecipitation Reagent (Protein G) enables fast and gentle magnetic isolation of exosomal proteins, causing minimal physical stress to theRead more
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Catalog number 10612D
Price (USD)
230.00
Each
Add to cart
Price (USD)
230.00
Each
Add to cart
Exosome Immunoprecipitation Reagent (Protein G) enables fast and gentle magnetic isolation of exosomal proteins, causing minimal physical stress to the target protein and allowing comparison of multiple samples on the same gel.

• Maintain intact exosome protein complexes
• Reduce background significantly—low non-specific binding
• Fast protocol time—only 30 minutes
• Maximal comparison—ultra-sensitivity allows many samples on the same gel

Dynabeads™ coupled to Protein G are widely used for immunoprecipitation (IP), chromatin immunoprecipitation (ChIP), and protein isolation. The magnetic properties of Dynabeads™ makes them a superior alternative to sepharose or agarose slurry for immunoprecipitation, since magnetic separation technology is faster and gentler than other methods, causing minimal physical stress to the target proteins. This permits the isolation and concentration of labile composites that might otherwise dissociate or be damaged by proteases during long incubation times. Native protein conformation and intact, large protein complexes will be preserved.

Exosome Immunoprecipitation (Protein G) makes use of Dynabeads™ Protein G for antibody binding and subsequent immunoprecipitation of exosomal proteins. Antibody is added to the Dynabeads™ suspension where binding occurs via the Fc-region of the antibody. The mixture is then placed near a magnet, causing the beads migrate to the side of the tube, allowing easy removal of the supernatant. The bead-bound antibody can now be used for immunoprecipitation of exosomal proteins. Immunoprecipitation allows a 10 to 50 times concentration of exosomal proteins prior to protein analysis, such as Western blotting.

The amount of Ig captured by Exosome Immunoprecipitation (Protein G) is dependent on the concentration of Ig in the starting sample. The binding capacity is approximately 240 μg human Ig per mL beads.

For isolation of Ig via protein A, we recommend the Exosome Immunoprecipitation (Protein A).

For Research Use Only. Not for human or animal therapeutic or diagnostic use.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Product TypeExosome Immunoprecipitation Reagent
Final Product TypeProtein Complexes, Protein (Native)
FormatBeads in suspension
High-throughput CompatibilityNot High-throughput Compatible (Manual)
Isolation TechnologyMagnetic Bead
Ligand TypeProtein G
Product LineDynabeads™
Quantity1 mL
Sample TypeExosomes
Shipping ConditionRoom Temperature
Target SpeciesAll species
Diameter (Metric)2.8 μm
Unit SizeEach
Contents & Storage
Store at 2°C to 8°C.

Frequently asked questions (FAQs)

Do you have any references or citations using Dynabeads magnetic beads to isolate exosomes?

Yes. See this poster (https://tools.thermofisher.com/content/sfs/posters/Exosome-poster-ISEV-2013-Boston.pdf).

In addition, here are some citations:
- Blood 91:2573 (1998)
- Science 289:444 (2000)
- J Physiol 537:537 (2001)
- Mol Cell Proteomics 12:587 (2013)
- Biol Reprod 81:717 (2009)

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

Can exosomes isolated with different surface markers be different?

Yes, exosomes isolated with different surface markers can be distinctive in their protein profile. This has been demonstrated by Tauro et al. (http://www.ncbi.nlm.nih.gov/pubmed/23230278), who isolated two distinctive populations of exosomes based on surface markers EpCam or A33 from conditioned cell culture medium from a human carcinoma cell line. This proteomics study indicated that these two populations of exosomes are unique.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

What kind of product do you suggest if I would like to use Dynabeads magnetic beads to isolate exosomes?

We have exosome isolation kits for Exosome-Human CD63 (Cat. No. 10606D), Exosome-Human CD9 (Cat. No. 10614D), Exosome-Human CD81 (Cat. No. 10616D), and Exosome-Human EpCAM intended for isolating exosomes with these commonly used exosome surface antigens. If you are interested to isolating exosomes with other specific surface markers using your own antibody, you can use our Dynabeads exosome immunoprecipitation (Protein A, Cat. No. 10610D), Dynabeads exosome immunoprecipitation (Protein G, Cat. No. 10612D), or Exosome-Streptavidin for isolation/detection (Cat. No. 10608D). In addition, anti-mouse IgG Dynabeads magnetic beads (Cat Nos. 11031 or 11033) also can be employed in exosome isolation using mouse monoclonal antibodies against selected surface markers.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

How are exosomes characterized?

Exosomes are usually characterized by flow cytometry (using surface markers such as CD9, CD63, TSG101, and Alix), by EM to study morphology and size, or by detailed protein analysis by LC-MS/MS.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

What are the commonly used surface markers for isolating exosomes?

It depends on the cell source from which the exosomes were derived. The most commonly used surface markers for isolating and characterizing exosomes are CD9, CD63, CD81, or TSG101. Here are some of the recent references and surface markers for identifying or isolating exosomes:

Alix, CD63, EpiCam, HSP70, TSG101 Mol Cell Proteomics 12:587 (2013)
CD9, CD63 Hum Mol Genet 21:R125 (2012)
CD63, MHC IIJ Biol Chem 278:52347 (2003)
CD9, CD81, Lamp1, TSG101 Cancer Res 67:7458 (2007)
CD63 Nature Cell Biol 9:654 (2007)
Alix, CD37, CD53, CD63, CD81, CD82, TSG101J Cell Biol 200:373 (2013)
CD59, CD63, CD133, TSG101 FASEB J 23:1858 (2009)

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.