Gator™ Protein A (Pro A) Probes are useful in measuring the concentration and kinetics of antibodies. Specifically, Protein A binds to the heavy chain within the Fc region of most immunoglobulins, with a particularly high
affinity for human IgG1, IgG2, and IgG4. In addition, Protein A has high affinity for mouse (IgG2 and IgG3) and rabbit immunoglobulins. These probes can be regenerated and reused for multiple experiments.