Description_x000D_ General description_x000D_ 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_x000D_ Goat IgG is purified from normal goat serum by fractionation and ion-exchange chromatography._x000D_ Application_x000D_ Purified 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. Goat IgG was used as negative control in immunohistochemical analysis of human heart tissue samples and in preparation of egg-white avidin samples for atomic force microscopy. Goat IgG was used as isotype control antibody in immunohistochemical analysis of tissue sections of human tonsils, colon, small intestine, ileus and spleen._x000D_ Packaging_x000D_ 10, 50, 100 mg in poly bottle_x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.