Purified rabbit IgG may be used as a reference antigen, standard, blocking agent, or coating protein in a variety of immunoassays including ELISA, dot immunobinding, Western immunoblotting, immunodiffusion, and immunoelectrophoresis. Other applications include starting materials for the preparation of immunogens and solid phase immunoadsorbents. Rabbit IgG was used to reduce non-specific binding in immunoprecipitation of protein extracts and as control antibody in radioimmunoassay immunocytochemistry and immunohistochemistry. Rabbit IgG was also used as a standard to demonstrate the performance of land-contrast (LC) BioCD (protein array) and in neutralization assays.
IgG antibody subtype is the most abundant serum immunoglobulins of the immune system. It is secreted by B cells and is found in blood and extracellular fluids and provides protection from infections caused by bacteria, fungi and viruses. Maternal IgG is transferred to fetus through the placenta that is vital for immune defence of the neonate against infections
Rabbit IgG is purified from normal rabbit serum by fractionation and ion-exchange chromatography.
