IgG from porcine serum may be used in quantitative ELISA, a concentration of 0.5 μg/ml may be used as standard. Concentrations ranging from 3.9 to 250 ng/ml were used as standards in immune response measurements. Pig IgG was also used as standard in surface plasmon resonance phase imaging studies.
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. IgG from porcine serum specifically recognizes IgG from pig. Pig IgG is purified from normal pig serum by fractionation and ion-exchange chromatography. Immunoglobulin G (IgG) is part of the immunoglobulin family. The primary structure of this antibody contains disulfide bonds involved in linking the two heavy chains, linking the heavy and light chains and resides inside the chains.
