——Protein A/G Agarose or Magnetic Beads
Protein A and Protein G are the most commonly used proteins for antibody affinity purification and immunoprecipitation. Protein A/G agarose or magnetic beads covalently couple Protein A and G to the medium surface, featuring stronger binding capacity, a broader binding range, and higher practicality.
rProtein A/G Agarose Resin |
||
Matrix |
Highly cross-linked 4% agarose microspheres |
Polymeric magnetic microspheres |
Particle Size |
45-165 µm |
1 µm |
Capacity |
>20 mg hIgG/mL resin |
>0.7 mg hIgG/mg magnetic beads |
Advantages |
Easy to use, no auxiliary equipment required |
Simple operation |
Large pore size, strong binding force |
Small diameter, good kinetics |
|
High yield of target protein |
Smooth surface, minimal bead adsorption, low background, less antibody consumption |
|
Disadvantages |
Porous and prone to adsorption (pre-clear required) |
Convenient to use with a magnetic rack |
Product Applications
1.Purification of Antibodies
A single step of purification can isolate high-purity antibodies from serum or ascites samples.
Enrichment of a specific protein to study its characteristics (such as post-translational modifications).

3.Co-Immunoprecipitation (Co-IP)
Enrichment of a specific protein to study other proteins that bind to it (i.e., protein-protein interactions, protein complexes, etc.).
Operation Procedure
Test Data
1.Purification of antibodies from rabbit serum using rProtein A/GAgarose Resin.
Figure 1. Electrophoresis result of antibody purification using rProtein A/G Agarose Resin
2.Use of Protein A/G Magbeads for Co-IP: Specific antibodies against p65 and cyclin-dependent kinase 9 (CDK9) are used for immunoprecipitation analysis of extracted total cellular protein.

Figure 2. Immunoprecipitants were then subjected to western blot analysis using specific antibodies against CDK9 and p65.
Product Information
Product Name |
Product Number |
Specification |
rProtein A/G Agarose Resin |
36403ES08/25/60 |
5 mL/25 mL/100 mL |
36417ES03/05 |
1 mL/5 mL |
Related Products Order
Product Name |
Product Number |
Specification |
36401ES08/25/60 |
5 mL/25 mL/100 mL |
|
rProtein G Agarose Resin |
36405ES08/25/60 |
5 mL/25 mL/100 mL |