Pierce™ Protein G Magnetic Beads
Pierce™ Protein G Magnetic Beads
Thermo Scientific™

Pierce™ Protein G Magnetic Beads

Thermo Scientific Pierce Protein G Magnetic Beads are high-capacity and high-throughput affinity particles for antibody purification and immunoprecipitation methods usingRead more
Have Questions?
Change viewbuttonViewtableView
Catalog NumberQuantity
888485 mL
888471 mL
Catalog number 88848
Price (USD)
958.00
Each
Add to cart
Quantity:
5 mL
Request bulk or custom format
Price (USD)
958.00
Each
Add to cart
Thermo Scientific Pierce Protein G Magnetic Beads are high-capacity and high-throughput affinity particles for antibody purification and immunoprecipitation methods using manual or robotic magnetic separators.

Features of Protein G Magnetic Beads:

High efficiency – equivalent or higher yield of IP target antigens than magnetic beads from other suppliers
Low non-specific binding – stable, pre-blocked beads provide highly purified product (e.g., antigen eluted in IP with antibody is devoid of contaminating protein from complex cell lysate)
Consistent – magnetic beads eliminate resin loss and provide for more efficient separation of solutions than traditional IP methods that use only centrifugation
Versatile – beads are compatible with manual and automated workflows (e.g., Thermo Scientific KingFisher Instruments)

Recombinant protein G, covalently attached to a blocked magnetic bead surface, can bind to antibodies from many different species, enabling purification of antibodies from crude extracts. Immunoprecipitation assays performed with protein G coated beads result in high yield of target antigen with very low background. Using our crosslinker chemistry, you can immobilize an antibody onto the magnetic particle and prevent IgG contamination in IP or Co-IP experiments. The Pierce Protein G Magnetic Beads can be used both manually with a magnetic stand as well as with automated platforms such as the Thermo Scientific KingFisher Instruments for high-throughput workflows.

Applications:
• IP and Co-IP experiments
• Antibody purification

Thermo Scientific Pierce Protein G Magnetic Beads are used for purifying antibody from serum, cell culture supernatant or ascites as well as for IP/Co-IP of antigens from cell or tissue extracts. Protein G can bind to antibodies from many different species, including mouse, human, rabbit, cow, goat and sheep. The protocol for the Pierce Protein G beads has been optimized to allow for high recovery and high purity of the isolated antibody or antigen. Antibody or antigen/antibody complex (IP) is first captured on the magnetic beads. The beads are washed and then the target is eluted with low pH elution buffer. IP performance is equivalent to or better than Protein G magnetic beads from other suppliers.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
FormLiquid
Product LinePierce™
Quantity5 mL
Protein FormRecombinant
TargetAntibody
TypeMagnetic Affinity Bead
Ligand TypeProtein G
Unit SizeEach
Contents & Storage
Upon receipt store at 4°C. Product shipped with an ice pack.

Frequently asked questions (FAQs)

Can I use the Pierce Proteins G Magnetic Beads (Cat. Nos. 88847, 88848) to perform biotinylation of immobilized antibodies?

We do not have data regarding the use of the Pierce Protein G Magnetic Beads (Cat. Nos. 88847, 88848) for the biotinylation of immobilized antibodies. These beads are often used for immunoprecipitation experiments, which may also include a crosslinking step to covalently immobilize the antibody and prevent IgG contamination during the elution of the protein target.
We do offer the EZ-Link NHS-PEG Solid-Phase Biotinylation Kit - Mini-Spin Columns (Cat. No. 21450) designed to perform amine-targeted biotinylation of IgG antibodies immobilized on agarose resin. More details can be found in the User Guide.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

How many times can the Pierce Protein G Magnetic Beads (Cat. No. 88847) be reused?

Our Protein G magnetic beads (Cat. No. 88847) have been developed only for single use. Unfortunately reusage could affect the performance of the magnetic beads in terms of specificity and yield. So, we would highly not recommend reusing them.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Quantitation Support Center.

What are the differences between Protein A, Protein G, Protein A/G, and Protein L Ig-binding proteins?

Protein A, Protein G, and Protein A/G bind almost exclusively to the IgG class of antibodies, but their binding properties differ among species and subclasses of IgG. Protein L binds in the variable fragment of some kappa light chains and can react with any immunoglobulin, not just IgG, as long as the correct kappa light chains are present. Protein L does not bind lambda light chains and certain kappa chains of different species.

-Protein A is generally preferred for rabbit, pig, dog, and cat IgG.
-Protein G has better binding capacity for a broader range of mouse and human IgG subclasses (e.g., IgG1 vs. IgG2)
-Protein A/G is a recombinant fusion protein that includes the IgG-binding domains of both Protein A and Protein G. Therefore, Protein A/G is ideal for binding the broadest range of IgG subclasses from rabbit, mouse, human, and other mammalian samples.
-Protein L binds to certain immunoglobulin kappa light chains. Because kappa light chains occur in members of all classes of immunoglobulin (i.e., IgG, IgM, IgA, IgE and IgD), Protein L can purify these different classes of antibody. However, only those antibodies within each class that possess the appropriate kappa light chains will bind. Generally, empirical testing is required to determine if Protein L is effective for purifying a particular antibody. It binds only Vk1 in mouse and VkI, VkIII and VkIV in human.
Read more about the general characteristics of Ig-binding proteins (https://www.thermofisher.com/us/en/home/life-science/antibodies/antibody-purification-kits-reagents.html) and (https://assets.thermofisher.com/TFS-Assets/LSG/Application-Notes/TR0034-Ab-binding-proteins.pdf).

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.