Human IgGs are glycoprotein antibodies that contain two equivalent light chains and a pair of identical heavy chains, with molecular weight of 50kDa and 25kDa respectively. IgGs have four distinct isoforms, ranging from IgG1 to IgG4. These antibodies regulate immunological responses to allergy and pathogenic infections. IgGs have also been implicated in complement fixation and autoimmune disorders. Goat anti-human IgG binds to human IgG. Immunoglobulin G (IgG) is part of the immunoglobulin family and is a widely expressed serum antibody. The primary structure of this antibody also contains disulfide bonds involved in linking the two heavy chains, linking the heavy and light chains and resides inside the chains.
